| ### |
| ### Source file gf013.tcl |
| ### Process this file with the preprocessor script |
| ### |
| #----------------------------------------------------- |
| # Magic/TCL design kit for GF TECHNAME |
| #----------------------------------------------------- |
| # Tim Edwards |
| # Revision 0 4/25/2022 |
| #----------------------------------------------------- |
| |
| if {[catch {set TECHPATH $env(PDK_ROOT)}]} { |
| set TECHPATH STAGING_PATH |
| } |
| if [catch {set PDKPATH}] {set PDKPATH ${TECHPATH}/TECHNAME} |
| set PDKNAME TECHNAME |
| # "gf180mcu" is the namespace used for all devices |
| set PDKNAMESPACE gf180mcu |
| puts stdout "Loading TECHNAME Device Generator Menu ..." |
| |
| # Initialize toolkit menus to the wrapper window |
| |
| global Opts |
| namespace eval gf180mcu {} |
| |
| # Set the window callback |
| if [catch {set Opts(callback)}] {set Opts(callback) ""} |
| set Opts(callback) [subst {gf180mcu::addtechmenu \$framename; $Opts(callback)}] |
| |
| # if {![info exists Opts(cmdentry)]} {set Opts(cmdentry) 1} |
| |
| # Set options specific to this PDK |
| set Opts(hidelocked) 1 |
| set Opts(hidespecial) 0 |
| |
| # Wrap the closewrapper procedure so that closing the last |
| # window is equivalent to quitting. |
| if {[info commands closewrapper] == "closewrapper"} { |
| rename closewrapper closewrapperonly |
| proc closewrapper { framename } { |
| if {[llength [windownames all]] <= 1} { |
| magic::quit |
| } else { |
| closewrapperonly $framename |
| } |
| } |
| } |
| |
| # Remove maze router layers from the toolbar by locking them |
| catch {tech lock fence,magnet,rotate} |
| |
| namespace eval gf180mcu { |
| namespace path {::tcl::mathop ::tcl::mathfunc} |
| |
| set ruleset [dict create] |
| |
| # Process DRC rules (magic style) |
| |
| dict set ruleset poly_surround 0.065 ;# Poly surrounds contact |
| dict set ruleset diff_surround 0.065 ;# Diffusion surrounds contact |
| dict set ruleset gate_to_diffcont 0.26 ;# Gate to diffusion contact center |
| dict set ruleset gate_to_polycont 0.28 ;# Gate to poly contact center |
| dict set ruleset gate_extension 0.22 ;# Poly extension beyond gate |
| dict set ruleset diff_extension 0.23 ;# Diffusion extension beyond gate |
| dict set ruleset contact_size 0.23 ;# Minimum contact size |
| dict set ruleset via_size 0.26 ;# Minimum via size |
| dict set ruleset metal_surround 0.055 ;# Metal1 overlaps contact |
| dict set ruleset sub_surround 0.12 ;# Sub/well surrounds diffusion |
| dict set ruleset diff_spacing 0.33 ;# Diffusion spacing rule |
| dict set ruleset poly_spacing 0.24 ;# Poly spacing rule |
| dict set ruleset diffres_spacing 0.40 ;# Diffusion resistor spacing rule |
| dict set ruleset polyres_spacing 0.40 ;# Poly resistor spacing rule |
| dict set ruleset diff_poly_space 0.10 ;# Diffusion to poly spacing rule |
| dict set ruleset diff_gate_space 0.11 ;# Diffusion to gate poly spacing rule |
| dict set ruleset metal_spacing 0.23 ;# Metal1 spacing rule |
| dict set ruleset mmetal_spacing 0.38 ;# Metal spacing rule (above metal1) |
| dict set ruleset sblk_to_cont 0.33 ;# resistor to contact center |
| dict set ruleset sblk_diff_space 0.44 ;# resistor to guard ring |
| dict set ruleset sblk_diff_space 0.60 ;# resistor to guard ring |
| } |
| |
| #----------------------------------------------------- |
| # magic::addtechmenu |
| #----------------------------------------------------- |
| |
| proc gf180mcu::addtechmenu {framename} { |
| global Winopts Opts |
| |
| # Check for difference between magic 8.1.125 and earlier, and 8.1.126 and later |
| if {[catch {${framename}.titlebar cget -height}]} { |
| set layoutframe ${framename}.pane.top |
| } else { |
| set layoutframe ${framename} |
| } |
| |
| # List of devices is long. Divide into two sections for active and passive deivces |
| magic::add_toolkit_menu $layoutframe "Devices 1" pdk1 |
| |
| magic::add_toolkit_command $layoutframe "nmos - nMOSFET" "magic::gencell gf180mcu::nfet_03v3" pdk1 |
| magic::add_toolkit_command $layoutframe "pmos - pMOSFET" "magic::gencell gf180mcu::pfet_03v3" pdk1 |
| |
| # (NOT ADDED YET---DRAW ROUTINE IS INCOMPLETE) |
| # magic::add_toolkit_separator $layoutframe pdk1 |
| # magic::add_toolkit_command $layoutframe "nfet_dss - mosfet (unsalicided drain)" "magic::gencell gf180mcu::nfet_03v3_dss" pdk1 |
| # magic::add_toolkit_command $layoutframe "pfet_dss - mosfet (unsalicided drain)" "magic::gencell gf180mcu::pfet_03v3_dss" pdk1 |
| |
| # (NOT ADDED YET---DRAW ROUTINE IS INCOMPLETE) |
| # magic::add_toolkit_separator $layoutframe pdk1 |
| # magic::add_toolkit_command $layoutframe "ldnmos - nMOSFET" "magic::gencell gf180mcu::nfet_10v0_asym" pdk1 |
| # magic::add_toolkit_command $layoutframe "ldpmos - nMOSFET" "magic::gencell gf180mcu::pfet_10v0_asym" pdk1 |
| |
| magic::add_toolkit_separator $layoutframe pdk1 |
| magic::add_toolkit_command $layoutframe "diode_nd2ps_03v3 - n-diode" "magic::gencell gf180mcu::diode_nd2ps_03v3" pdk1 |
| magic::add_toolkit_command $layoutframe "diode_pd2nw_03v3 - p-diode" "magic::gencell gf180mcu::diode_pd2nw_03v3" pdk1 |
| |
| magic::add_toolkit_separator $layoutframe pdk1 |
| magic::add_toolkit_command $layoutframe "npn_10p00x10p00 (3.3V) - 10.0um x 10.0um " "magic::gencell gf180mcu::npn_10p00x10p00" pdk1 |
| magic::add_toolkit_command $layoutframe "npn_05p00x05p00 (3.3V) - 5.0um x 5.0um " "magic::gencell gf180mcu::npn_05p00x05p00" pdk1 |
| magic::add_toolkit_command $layoutframe "npn_10p00x10p00 (3.3V) - 10.0um x 10.0um " "magic::gencell gf180mcu::npn_00p54x04p00" pdk1 |
| magic::add_toolkit_command $layoutframe "npn_00p54x10p00 (3.3V) - 0.54um x 10.0um " "magic::gencell gf180mcu::npn_00p54x10p00" pdk1 |
| magic::add_toolkit_command $layoutframe "npn_00p54x08p00 (3.3V) - 0.54um x 8.0um " "magic::gencell gf180mcu::npn_00p54x08p00" pdk1 |
| magic::add_toolkit_command $layoutframe "npn_00p54x02p00 (3.3V) - 0.54um x 2.0um " "magic::gencell gf180mcu::npn_00p54x02p00" pdk1 |
| magic::add_toolkit_command $layoutframe "pnp_10p00x10p00 (3.3V) - 10.0um x 10.0um " "magic::gencell gf180mcu::pnp_10p00x10p00" pdk1 |
| magic::add_toolkit_command $layoutframe "pnp_05p00x05p00 (3.3V) - 5.0um x 5.0um " "magic::gencell gf180mcu::pnp_05p00x05p00" pdk1 |
| magic::add_toolkit_command $layoutframe "pnp_10p00x00p42 (3.3V) - 10.0um x 0.42um " "magic::gencell gf180mcu::pnp_10p00x00p42" pdk1 |
| magic::add_toolkit_command $layoutframe "pnp_05p00x00p42 (3.3V) - 5.0um x 0.42um " "magic::gencell gf180mcu::pnp_05p00x00p42" pdk1 |
| magic::add_toolkit_command $layoutframe "eFuse" "magic::gencell gf180mcu::eFuse" pdk1 |
| |
| magic::add_toolkit_separator $layoutframe pdk1 |
| magic::add_toolkit_command $layoutframe "mos capacitor" "magic::gencell gf180mcu::nmoscap_3p3" pdk1 |
| |
| magic::add_toolkit_menu $layoutframe "Devices 2" pdk2 |
| |
| magic::add_toolkit_command $layoutframe "ppolyf_s - 7 Ohm/sq " "magic::gencell gf180mcu::ppolyf_s" pdk2 |
| magic::add_toolkit_command $layoutframe "npolyf_s - 7 Ohm/sq " "magic::gencell gf180mcu::ppolyf_s" pdk2 |
| magic::add_toolkit_command $layoutframe "nplus_u (3.3V) - 85 Ohm/sq " "magic::gencell gf180mcu::nplus_u" pdk2 |
| magic::add_toolkit_command $layoutframe "pplus_u (3.3V) - 128 Ohm/sq " "magic::gencell gf180mcu::pplus_u" pdk2 |
| magic::add_toolkit_command $layoutframe "nplus_u (6.0V) - 85 Ohm/sq " "magic::gencell gf180mcu::nplus_u_6p0" pdk2 |
| magic::add_toolkit_command $layoutframe "pplus_u (6.0V) - 128 Ohm/sq " "magic::gencell gf180mcu::pplus_u_6p0" pdk2 |
| |
| magic::add_toolkit_command $layoutframe "npolyf_u - 300 Ohm/sq " "magic::gencell gf180mcu::npolyf_u" pdk2 |
| magic::add_toolkit_command $layoutframe "ppolyf_u - 315 Ohm/sq " "magic::gencell gf180mcu::ppolyf_u" pdk2 |
| #ifdef HRPOLY1K |
| magic::add_toolkit_command $layoutframe "ppolyf_u_1k - 1.0k Ohm/sq " "magic::gencell gf180mcu::ppolyf_u_1k" pdk2 |
| #endif (HRPOLY1K) |
| magic::add_toolkit_command $layoutframe "nwell (3.3V) -1680 Ohm/sq " "magic::gencell gf180mcu::nwell_3p3" pdk2 |
| magic::add_toolkit_separator $layoutframe pdk2 |
| |
| magic::add_toolkit_command $layoutframe "rm1 - 90 mOhm/sq " "magic::gencell gf180mcu::rm1" pdk2 |
| magic::add_toolkit_command $layoutframe "rm2 - 90 mOhm/sq " "magic::gencell gf180mcu::rm2" pdk2 |
| |
| #ifdef METALS3 |
| #ifdef THICKMET3P0 |
| magic::add_toolkit_command $layoutframe "rm3 - 9.5 mOhm/sq " "magic::gencell gf180mcu::rm3" pdk2 |
| #elseif (THICKMET1P1 || THICKMET0P9) |
| magic::add_toolkit_command $layoutframe "rm3 - 40 mOhm/sq " "magic::gencell gf180mcu::rm3" pdk2 |
| #else (!(THICKMET3P0 || THICKMET1P1 || THICKMET0P9)) |
| magic::add_toolkit_command $layoutframe "rm3 - 60 mOhm/sq " "magic::gencell gf180mcu::rm3" pdk2 |
| #endif (!(THICKMET3P0 || THICKMET1P1 || THICKMET0P9)) |
| #endif (METALS3) |
| #ifdef METALS4 || METALS5 || METALS6 |
| magic::add_toolkit_command $layoutframe "rm3 - 90 mOhm/sq " "magic::gencell gf180mcu::rm3" pdk2 |
| #endif (METALS4 || METALS5 || METALS6) |
| |
| #ifdef METALS4 |
| #ifdef THICKMET3P0 |
| magic::add_toolkit_command $layoutframe "rm4 - 9.5 mOhm/sq " "magic::gencell gf180mcu::rm4" pdk2 |
| #elseif (THICKMET1P1 || THICKMET0P9) |
| magic::add_toolkit_command $layoutframe "rm4 - 40 mOhm/sq " "magic::gencell gf180mcu::rm4" pdk2 |
| #else (!(THICKMET3P0 || THICKMET1P1 || THICKMET0P9)) |
| magic::add_toolkit_command $layoutframe "rm4 - 60 mOhm/sq " "magic::gencell gf180mcu::rm4" pdk2 |
| #endif (!(THICKMET3P0 || THICKMET1P1 || THICKMET0P9)) |
| #endif (METALS4) |
| #ifdef METALS5 || METALS6 |
| magic::add_toolkit_command $layoutframe "rm4 - 90 mOhm/sq " "magic::gencell gf180mcu::rm4" pdk2 |
| #endif (METALS5 || METALS6) |
| |
| #ifdef METALS5 |
| #ifdef THICKMET3P0 |
| magic::add_toolkit_command $layoutframe "rm5 - 9.5 mOhm/sq " "magic::gencell gf180mcu::rm5" pdk2 |
| #elseif (THICKMET1P1 || THICKMET0P9) |
| magic::add_toolkit_command $layoutframe "rm5 - 40 mOhm/sq " "magic::gencell gf180mcu::rm5" pdk2 |
| #else (!(THICKMET3P0 || THICKMET1P1 || THICKMET0P9)) |
| magic::add_toolkit_command $layoutframe "rm5 - 60 mOhm/sq " "magic::gencell gf180mcu::rm5" pdk2 |
| #endif (!(THICKMET3P0 || THICKMET1P1 || THICKMET0P9)) |
| #endif (METALS3) |
| #ifdef METALS6 |
| magic::add_toolkit_command $layoutframe "rm5 - 90 mOhm/sq " "magic::gencell gf180mcu::rm5" pdk2 |
| #endif (METALS5) |
| #ifdef METALS6 |
| #ifdef THICKMET3P0 |
| magic::add_toolkit_command $layoutframe "rmtp - 9.5 mOhm/sq " "magic::gencell gf180mcu::rmtp" pdk2 |
| #elseif (THICKMET1P1 || THICKMET0P9) |
| magic::add_toolkit_command $layoutframe "rmtp - 40 mOhm/sq " "magic::gencell gf180mcu::rmtp" pdk2 |
| #else (!(THICKMET3P0 || THICKMET1P1 || THICKMET0P9)) |
| magic::add_toolkit_command $layoutframe "rmtp - 60 mOhm/sq " "magic::gencell gf180mcu::rmtp" pdk2 |
| #endif (!(THICKMET3P0 || THICKMET1P1 || THICKMET0P9)) |
| #endif (METALS6) |
| |
| magic::add_toolkit_separator $layoutframe pdk2 |
| |
| #ifdef MIM |
| magic::add_toolkit_command $layoutframe "cap_mim_2p0fF - MiM cap " "magic::gencell gf180mcu::cap_mim_2p0fF" pdk2 |
| #endif (MIM) |
| magic::add_toolkit_separator $layoutframe pdk2 |
| |
| magic::add_toolkit_command $layoutframe "substrate contact (3.3V) " "gf180mcu::subcon_3p3_draw" pdk2 |
| magic::add_toolkit_command $layoutframe "substrate contact (6.0V) " "gf180mcu::subcon_6p0_draw" pdk2 |
| magic::add_toolkit_command $layoutframe "via1 " "gf180mcu::via1_draw" pdk2 |
| #ifdef METALS3 || METALS4 || METALS5 || METALS6 |
| magic::add_toolkit_command $layoutframe "via2 " "gf180mcu::via2_draw" pdk2 |
| #endif (METALS3 || METALS4 || METALS5 || METALS6) |
| #ifdef METALS4 || METALS5 || METALS6 |
| magic::add_toolkit_command $layoutframe "via3 " "gf180mcu::via3_draw" pdk2 |
| #endif (METALS4 || METALS5 || METALS6) |
| #ifdef METALS5 || METALS6 |
| magic::add_toolkit_command $layoutframe "via4 " "gf180mcu::via4_draw" pdk2 |
| #endif (METALS5 || METALS6) |
| #ifdef METALS6 |
| magic::add_toolkit_command $layoutframe "viatp " "gf180mcu::viatp_draw" pdk2 |
| #endif (METALS6) |
| |
| ${layoutframe}.titlebar.mbuttons.drc.toolmenu add command -label "DRC Routing" -command {drc style drc(routing)} |
| |
| # Add SPICE import function to File menu |
| ${layoutframe}.titlebar.mbuttons.file.toolmenu insert 4 command -label "Import SPICE" -command {gf180mcu::importspice} |
| ${layoutframe}.titlebar.mbuttons.file.toolmenu insert 4 separator |
| |
| # Add command entry window by default if enabled |
| if {[info exists Opts(cmdentry)]} { |
| set Winopts(${framename},cmdentry) $Opts(cmdentry) |
| } else { |
| set Winopts(${framename},cmdentry) 0 |
| } |
| if {$Winopts(${framename},cmdentry) == 1} { |
| addcommandentry $framename |
| } |
| } |
| |
| #---------------------------------------------------------------- |
| # Menu callback function to read a SPICE netlist and generate an |
| # initial layout using the SKYWATER sky130A gencells. |
| #---------------------------------------------------------------- |
| |
| proc gf180mcu::importspice {} { |
| global CAD_ROOT |
| |
| set Layoutfilename [ tk_getOpenFile -filetypes \ |
| {{SPICE {.spice .spc .spi .ckt .cir .sp \ |
| {.spice .spc .spi .ckt .cir .sp}}} {"All files" {*}}}] |
| if {$Layoutfilename != ""} { |
| magic::netlist_to_layout $Layoutfilename gf180mcu |
| } |
| } |
| |
| #---------------------------------------------------------------- |
| |
| proc gf180mcu::via1_draw {} { |
| set w [magic::i2u [box width]] |
| set h [magic::i2u [box height]] |
| if {$w < 0.28} { |
| puts stderr "Via1 width must be at least 0.28um" |
| return |
| } |
| if {$h < 0.28} { |
| puts stderr "Via1 height must be at least 0.28um" |
| return |
| } |
| paint via1 |
| box grow n 0.05um |
| box grow s 0.05um |
| paint m2 |
| box grow n -0.05um |
| box grow s -0.05um |
| box grow e 0.05um |
| box grow w 0.05um |
| paint m1 |
| box grow e -0.05um |
| box grow w -0.05um |
| } |
| |
| #ifdef METALS3 || METALS4 || METALS5 || METALS6 |
| proc gf180mcu::via2_draw {} { |
| set w [magic::i2u [box width]] |
| set h [magic::i2u [box height]] |
| if {$w < 0.28} { |
| puts stderr "Via2 width must be at least 0.28um" |
| return |
| } |
| if {$h < 0.28} { |
| puts stderr "Via2 height must be at least 0.28um" |
| return |
| } |
| paint via2 |
| box grow n 0.05um |
| box grow s 0.05um |
| paint m2 |
| box grow n -0.05um |
| box grow s -0.05um |
| box grow e 0.05um |
| box grow w 0.05um |
| paint m3 |
| box grow e -0.05um |
| box grow w -0.05um |
| } |
| #endif (METALS3 || METALS4 || METALS5 || METALS6) |
| |
| #ifdef METALS4 || METALS5 || METALS6 |
| proc gf180mcu::via3_draw {} { |
| set w [magic::i2u [box width]] |
| set h [magic::i2u [box height]] |
| if {$w < 0.28} { |
| puts stderr "Via3 width must be at least 0.28um" |
| return |
| } |
| if {$h < 0.28} { |
| puts stderr "Via3 height must be at least 0.28um" |
| return |
| } |
| paint via3 |
| box grow n 0.05um |
| box grow s 0.05um |
| paint m4 |
| box grow n -0.05um |
| box grow s -0.05um |
| box grow e 0.05um |
| box grow w 0.05um |
| paint m3 |
| box grow e -0.05um |
| box grow w -0.05um |
| } |
| #endif (METALS4 || METALS5 || METALS6) |
| |
| #ifdef METALS5 || METALS6 |
| proc gf180mcu::via4_draw {} { |
| set w [magic::i2u [box width]] |
| set h [magic::i2u [box height]] |
| if {$w < 0.28} { |
| puts stderr "Via4 width must be at least 0.28um" |
| return |
| } |
| if {$h < 0.28} { |
| puts stderr "Via4 height must be at least 0.28um" |
| return |
| } |
| paint via4 |
| box grow n 0.05um |
| box grow s 0.05um |
| paint m5 |
| box grow n -0.05um |
| box grow s -0.05um |
| box grow e 0.05um |
| box grow w 0.05um |
| paint m4 |
| box grow e -0.05um |
| box grow w -0.05um |
| } |
| #endif (METALS5 || METALS6) |
| |
| #ifdef METALS6 |
| proc gf180mcu::viatp_draw {} { |
| set w [magic::i2u [box width]] |
| set h [magic::i2u [box height]] |
| if {$w < 0.28} { |
| puts stderr "ViaTP width must be at least 0.28um" |
| return |
| } |
| if {$h < 0.28} { |
| puts stderr "ViaTP height must be at least 0.28um" |
| return |
| } |
| paint viatp |
| box grow c 0.08um |
| paint mtp |
| box grow c -0.08um |
| box grow e 0.05um |
| box grow w 0.05um |
| paint m5 |
| box grow e -0.05um |
| box grow w -0.05um |
| } |
| #endif (METALS6) |
| |
| proc gf180mcu::subcon_3p3_draw {} { |
| set w [magic::i2u [box width]] |
| set h [magic::i2u [box height]] |
| if {$w < 0.23} { |
| puts stderr "Substrate tap width must be at least 0.23um" |
| return |
| } |
| if {$h < 0.23} { |
| puts stderr "Substrate tap height must be at least 0.23um" |
| return |
| } |
| paint subdiffc |
| box grow c 0.1um |
| paint subdiff |
| box grow c 0.1um |
| paint pwell |
| box grow c -0.2um |
| } |
| |
| #---------------------------------------------------------------- |
| |
| proc gf180mcu::subcon_06v0_draw {} { |
| set w [magic::i2u [box width]] |
| set h [magic::i2u [box height]] |
| if {$w < 0.23} { |
| puts stderr "Substrate tap width must be at least 0.23um" |
| return |
| } |
| if {$h < 0.23} { |
| puts stderr "Substrate tap height must be at least 0.23um" |
| return |
| } |
| paint mvsubdiffc |
| box grow c 0.1um |
| paint mvsubdiff |
| box grow c 0.1um |
| paint pwell |
| box grow c -0.2um |
| } |
| |
| #---------------------------------------------------------------- |
| |
| proc gf180mcu::res_recalc {field parameters} { |
| set snake 0 |
| set sterm 0.0 |
| set caplen 0 |
| # Set a local variable for each parameter (e.g., $l, $w, etc.) |
| foreach key [dict keys $parameters] { |
| set $key [dict get $parameters $key] |
| } |
| set val [magic::spice2float $val] |
| set l [magic::spice2float $l] |
| set w [magic::spice2float $w] |
| |
| if {$snake == 0} { |
| # Straight resistor calculation |
| switch $field { |
| val { set l [expr ($val * ($w - $dw) - (2 * $term)) / $rho] |
| set w [expr ((2 * $term + $l * $rho) / $val) + $dw] |
| } |
| w { set val [expr (2 * $term + $l * $rho) / ($w - $dw)] |
| set l [expr ($val * ($w - $dw) - (2 * $term)) / $rho] |
| } |
| l { set val [expr (2 * $term + $l * $rho) / ($w - $dw)] |
| set w [expr ((2 * $term + $l * $rho) / $val) + $dw] |
| } |
| } |
| } else { |
| set term [expr $term + $sterm] |
| # Snake resistor calculation |
| switch $field { |
| val { set l [expr (($val - $rho * ($nx - 1)) * ($w - $dw) \ |
| - (2 * $term) - ($rho * $caplen * ($nx - 1))) \ |
| / ($rho * $nx)] |
| |
| set w [expr ((2 * $term + $l * $rho * $nx \ |
| + $caplen * $rho * ($nx - 1)) \ |
| / ($val - $rho * ($nx - 1))) + $dw] |
| } |
| w { set val [expr $rho * ($nx - 1) + ((2 * $term) \ |
| + ($rho * $l * $nx) + ($rho * $caplen * ($nx - 1))) \ |
| / ($w - $dw)] |
| |
| set l [expr (($val - $rho * ($nx - 1)) * ($w - $dw) \ |
| - (2 * $term) - ($rho * $caplen * ($nx - 1))) \ |
| / ($rho * $nx)] |
| } |
| l { set val [expr $rho * ($nx - 1) + ((2 * $term) \ |
| + ($rho * $l * $nx) + ($rho * $caplen * ($nx - 1))) \ |
| / ($w - $dw)] |
| |
| set w [expr ((2 * $term + $l * $rho * $nx \ |
| + $caplen * $rho * ($nx - 1)) \ |
| / ($val - $rho * ($nx - 1))) + $dw] |
| } |
| } |
| } |
| |
| set val [magic::3digitpastdecimal $val] |
| set w [magic::3digitpastdecimal $w] |
| set l [magic::3digitpastdecimal $l] |
| |
| dict set parameters val $val |
| dict set parameters w $w |
| dict set parameters l $l |
| |
| return $parameters |
| } |
| |
| #---------------------------------------------------------------- |
| # Drawn diode routines |
| #---------------------------------------------------------------- |
| |
| proc gf180mcu::diode_recalc {field parameters} { |
| # Set a local variable for each parameter (e.g., $l, $w, etc.) |
| foreach key [dict keys $parameters] { |
| set $key [dict get $parameters $key] |
| } |
| switch $field { |
| area { puts stdout "area changed" } |
| peri { puts stdout "perimeter changed" } |
| w { puts stdout "width changed" } |
| l { puts stdout "length changed" } |
| } |
| dict set parameters area $area |
| dict set parameters peri $peri |
| dict set parameters w $w |
| dict set parameters l $l |
| } |
| |
| #---------------------------------------------------------------- |
| # diode: Conversion from SPICE netlist parameters to toolkit |
| #---------------------------------------------------------------- |
| |
| proc gf180mcu::diode_convert {parameters} { |
| set pdkparams [dict create] |
| dict for {key value} $parameters { |
| switch -nocase $key { |
| l - |
| w - |
| peri { |
| # Length, width, and perimeter are converted to units of microns |
| set value [magic::spice2float $value] |
| set value [expr $value * 1e6] |
| set value [magic::3digitpastdecimal $value] |
| dict set pdkparams [string tolower $key] $value |
| } |
| area { |
| # area also converted to units of microns |
| set value [magic::spice2float $value] |
| set value [expr $value * 1e12] |
| set value [magic::3digitpastdecimal $value] |
| dict set pdkparams [string tolower $key] $value |
| } |
| m { |
| # Convert m to ny |
| dict set pdkparams ny $value |
| } |
| } |
| } |
| return $pdkparams |
| } |
| |
| #---------------------------------------------------------------- |
| # diode: Interactively specifies the fixed layout parameters |
| #---------------------------------------------------------------- |
| |
| proc gf180mcu::diode_dialog {device parameters} { |
| # Editable fields: w, l, area, perim, nx, ny |
| |
| magic::add_entry area "Area (um^2)" $parameters |
| magic::add_entry peri "Perimeter (um)" $parameters |
| gf180mcu::compute_aptot $parameters |
| magic::add_message atot "Total area (um^2)" $parameters |
| magic::add_message ptot "Total perimeter (um)" $parameters |
| magic::add_entry l "Length (um)" $parameters |
| magic::add_entry w "Width (um)" $parameters |
| magic::add_entry nx "X Repeat" $parameters |
| magic::add_entry ny "Y Repeat" $parameters |
| |
| if {[dict exists $parameters compatible]} { |
| set sellist [dict get $parameters compatible] |
| # Reserved word "gencell" has special behavior to change the |
| # underlying device type |
| dict set parameters gencell $device |
| magic::add_selectlist gencell "Device type" $sellist $parameters |
| } |
| |
| magic::add_checkbox doverlap "Overlap at end contact" $parameters |
| |
| if {[dict exists $parameters elc]} { |
| magic::add_checkbox elc "Add left end contact" $parameters |
| } |
| if {[dict exists $parameters erc]} { |
| magic::add_checkbox erc "Add right end contact" $parameters |
| } |
| if {[dict exists $parameters etc]} { |
| magic::add_checkbox etc "Add top end contact" $parameters |
| } |
| if {[dict exists $parameters ebc]} { |
| magic::add_checkbox ebc "Add bottom end contact" $parameters |
| } |
| |
| if {[dict exists $parameters guard]} { |
| magic::add_checkbox full_metal "Full metal guard ring" $parameters |
| } |
| if {[dict exists $parameters glc]} { |
| magic::add_checkbox glc "Add left guard ring contact" $parameters |
| } |
| if {[dict exists $parameters grc]} { |
| magic::add_checkbox grc "Add right guard ring contact" $parameters |
| } |
| if {[dict exists $parameters gtc]} { |
| magic::add_checkbox gtc "Add top guard ring contact" $parameters |
| } |
| if {[dict exists $parameters gbc]} { |
| magic::add_checkbox gbc "Add bottom guard ring contact" $parameters |
| } |
| |
| magic::add_dependency gf180mcu::diode_recalc $device gf180mcu l w area peri |
| |
| # magic::add_checkbox dummy "Add dummy" $parameters |
| } |
| |
| #---------------------------------------------------------------- |
| # Diode total area and perimeter computation |
| #---------------------------------------------------------------- |
| |
| proc gf180mcu::compute_aptot {parameters} { |
| foreach key [dict keys $parameters] { |
| set $key [dict get $parameters $key] |
| } |
| set area [magic::spice2float $area] |
| set area [magic::3digitpastdecimal $area] |
| set peri [magic::spice2float $peri] |
| set peri [magic::3digitpastdecimal $peri] |
| |
| # Compute total area |
| catch {set magic::atot_val [expr ($area * $nx * $ny)]} |
| # Compute total perimeter |
| catch {set magic::ptot_val [expr ($peri * $nx * $ny)]} |
| } |
| |
| #---------------------------------------------------------------- |
| # diode: Check device parameters for out-of-bounds values |
| #---------------------------------------------------------------- |
| |
| proc gf180mcu::diode_check {parameters} { |
| |
| # Set a local variable for each parameter (e.g., $l, $w, etc.) |
| foreach key [dict keys $parameters] { |
| set $key [dict get $parameters $key] |
| } |
| |
| # Normalize distance units to microns |
| set l [magic::spice2float $l] |
| set l [magic::3digitpastdecimal $l] |
| set w [magic::spice2float $w] |
| set w [magic::3digitpastdecimal $w] |
| |
| set area [magic::spice2float $area] |
| set area [magic::3digitpastdecimal $area] |
| set peri [magic::spice2float $peri] |
| set peri [magic::3digitpastdecimal $peri] |
| |
| if {$l == 0} { |
| # Calculate L from W and area |
| set l [expr ($area / $w)] |
| dict set parameters l [magic::float2spice $l] |
| } elseif {$w == 0} { |
| # Calculate W from L and area |
| set w [expr ($area / $l)] |
| dict set parameters w [magic::float2spice $w] |
| } |
| if {$w < $wmin} { |
| puts stderr "Diode width must be >= $wmin" |
| dict set parameters w $wmin |
| } |
| if {$l < $lmin} { |
| puts stderr "Diode length must be >= $lmin" |
| dict set parameters l $lmin |
| } |
| # Calculate area and perimeter from L and W |
| set area [expr ($l * $w)] |
| dict set parameters area [magic::float2spice $area] |
| set peri [expr (2 * ($l + $w))] |
| dict set parameters peri [magic::float2spice $peri] |
| gf180mcu::compute_aptot $parameters |
| |
| return $parameters |
| } |
| |
| #---------------------------------------------------------------- |
| |
| proc gf180mcu::diode_nd2ps_03v3_defaults {} { |
| return {w 0.45 l 0.45 area 0.2025 peri 1.8 \ |
| nx 1 ny 1 dummy 0 lmin 0.45 wmin 0.45 \ |
| elc 1 erc 1 etc 1 ebc 1 doverlap 0 full_metal 1 \ |
| compatible {diode_nd2ps_03v3 diode_nd2ps_06v0}} |
| } |
| |
| proc gf180mcu::diode_pd2nw_03v3_defaults {} { |
| return {w 0.45 l 0.45 area 0.2025 peri 1.8 \ |
| nx 1 ny 1 dummy 0 lmin 0.45 wmin 0.45 \ |
| elc 1 erc 1 etc 1 ebc 1 \ |
| glc 1 grc 1 gtc 0 gbc 0 doverlap 0 full_metal 1 \ |
| compatible {diode_pd2nw_03v3 diode_pd2nw_06v0}} |
| } |
| |
| proc gf180mcu::diode_nd2ps_06v0_defaults {} { |
| return {w 0.45 l 0.45 area 0.2025 peri 1.8 \ |
| nx 1 ny 1 dummy 0 lmin 0.45 wmin 0.45 \ |
| elc 1 erc 1 etc 1 ebc 1 doverlap 0 \ |
| full_metal 1 \ |
| compatible {diode_nd2ps_03v3 diode_nd2ps_06v0}} |
| } |
| |
| proc gf180mcu::diode_pd2nw_06v0_defaults {} { |
| return {w 0.45 l 0.45 area 0.2025 peri 1.8 \ |
| nx 1 ny 1 dummy 0 lmin 0.45 wmin 0.45 \ |
| elc 1 erc 1 etc 1 ebc 1 \ |
| glc 1 grc 1 gtc 0 gbc 0 doverlap 0 \ |
| full_metal 1 \ |
| compatible {diode_pd2nw_03v3 diode_pd2nw_06v0}} |
| } |
| |
| #---------------------------------------------------------------- |
| |
| proc gf180mcu::diode_nd2ps_03v3_convert {parameters} { |
| return [gf180mcu::diode_convert $parameters] |
| } |
| |
| proc gf180mcu::diode_pd2nw_03v3_convert {parameters} { |
| return [gf180mcu::diode_convert $parameters] |
| } |
| |
| proc gf180mcu::diode_nd2ps_06v0_convert {parameters} { |
| return [gf180mcu::diode_convert $parameters] |
| } |
| |
| proc gf180mcu::diode_pd2nw_06v0_convert {parameters} { |
| return [gf180mcu::diode_convert $parameters] |
| } |
| |
| #---------------------------------------------------------------- |
| |
| proc gf180mcu::diode_nd2ps_03v3_dialog {parameters} { |
| gf180mcu::diode_dialog diode_nd2ps_03v3 $parameters |
| } |
| |
| proc gf180mcu::diode_pd2nw_03v3_dialog {parameters} { |
| gf180mcu::diode_dialog diode_pd2nw_03v3 $parameters |
| } |
| |
| proc gf180mcu::diode_nd2ps_06v0_dialog {parameters} { |
| gf180mcu::diode_dialog diode_nd2ps_06v0 $parameters |
| } |
| |
| proc gf180mcu::diode_pd2nw_06v0_dialog {parameters} { |
| gf180mcu::diode_dialog diode_pd2nw_06v0 $parameters |
| } |
| |
| #---------------------------------------------------------------- |
| |
| proc gf180mcu::diode_nd2ps_03v3_check {parameters} { |
| gf180mcu::diode_check $parameters |
| } |
| |
| proc gf180mcu::diode_pd2nw_03v3_check {parameters} { |
| gf180mcu::diode_check $parameters |
| } |
| |
| proc gf180mcu::diode_nd2ps_06v0_check {parameters} { |
| gf180mcu::diode_check $parameters |
| } |
| |
| proc gf180mcu::diode_pd2nw_06v0_check {parameters} { |
| gf180mcu::diode_check $parameters |
| } |
| |
| #---------------------------------------------------------------- |
| # Diode: Draw a single device |
| #---------------------------------------------------------------- |
| |
| proc gf180mcu::diode_device {parameters} { |
| # Epsilon for avoiding round-off errors |
| set eps 0.0005 |
| |
| # Set local default values if they are not in parameters |
| set dev_surround 0 |
| set dev_sub_type "" |
| |
| # Set a local variable for each parameter (e.g., $l, $w, etc.) |
| foreach key [dict keys $parameters] { |
| set $key [dict get $parameters $key] |
| } |
| |
| if {![dict exists $parameters end_contact_size]} { |
| set end_contact_size $contact_size |
| } |
| |
| # Draw the device |
| pushbox |
| box size 0 0 |
| |
| set hw [/ $w 2.0] |
| set hl [/ $l 2.0] |
| |
| # Calculate ring size (measured to contact center) |
| set gx [+ $w [* 2.0 [+ $dev_spacing $dev_surround]] $end_contact_size] |
| set gy [+ $l [* 2.0 [+ $dev_spacing $dev_surround]] $end_contact_size] |
| |
| # Draw the ring first, because diode may occupy well/substrate plane |
| set guardparams $parameters |
| dict set guardparams plus_diff_type $end_type |
| dict set guardparams plus_contact_type $end_contact_type |
| dict set guardparams contact_size $end_contact_size |
| dict set guardparams diff_surround $end_surround |
| dict set guardparams sub_type $end_sub_type |
| dict set guardparams glc $elc |
| dict set guardparams grc $erc |
| dict set guardparams gtc $etc |
| dict set guardparams gbc $ebc |
| set cext [gf180mcu::guard_ring $gx $gy $guardparams] |
| |
| pushbox |
| box grow n ${hl}um |
| box grow s ${hl}um |
| box grow e ${hw}um |
| box grow w ${hw}um |
| paint ${dev_type} |
| set cext [gf180mcu::unionbox $cext [gf180mcu::getbox]] |
| |
| if {$dev_sub_type != ""} { |
| box grow n ${sub_surround}um |
| box grow s ${sub_surround}um |
| box grow e ${sub_surround}um |
| box grow w ${sub_surround}um |
| paint ${dev_sub_type} |
| } |
| popbox |
| |
| if {${w} < ${l}} { |
| set orient vert |
| } else { |
| set orient horz |
| } |
| |
| # Reduce width by surround amount |
| set w [- $w [* ${dev_surround} 2.0]] |
| set l [- $l [* ${dev_surround} 2.0]] |
| |
| set cext [gf180mcu::unionbox $cext [gf180mcu::draw_contact ${w} ${l} \ |
| ${dev_surround} ${metal_surround} ${contact_size} \ |
| ${dev_type} ${dev_contact_type} m1 ${orient}]] |
| |
| popbox |
| return $cext |
| } |
| |
| #---------------------------------------------------------------- |
| # Diode: Draw the tiled device |
| #---------------------------------------------------------------- |
| |
| proc gf180mcu::diode_draw {parameters} { |
| tech unlock * |
| |
| # Set defaults if they are not in parameters |
| set doverlap 0 ;# overlap diodes at contacts |
| set guard 0 ;# draw a guard ring |
| |
| # Set a local variable for each parameter (e.g., $l, $w, etc.) |
| foreach key [dict keys $parameters] { |
| set $key [dict get $parameters $key] |
| } |
| |
| # Normalize distance units to microns |
| set w [magic::spice2float $w] |
| set l [magic::spice2float $l] |
| |
| pushbox |
| box values 0 0 0 0 |
| |
| # Determine the base device dimensions by drawing one device |
| # while all layers are locked (nothing drawn). This allows the |
| # base drawing routine to do complicated geometry without having |
| # to duplicate it here with calculations. |
| |
| tech lock * |
| set bbox [gf180mcu::diode_device $parameters] |
| # puts stdout "Diagnostic: Device bounding box e $bbox (um)" |
| tech unlock * |
| |
| set fw [- [lindex $bbox 2] [lindex $bbox 0]] |
| set fh [- [lindex $bbox 3] [lindex $bbox 1]] |
| set lw [+ [lindex $bbox 2] [lindex $bbox 0]] |
| set lh [+ [lindex $bbox 3] [lindex $bbox 1]] |
| |
| # Determine tile width and height (depends on overlap) |
| |
| if {$doverlap == 0} { |
| set dx [+ $fw $end_spacing] |
| set dy [+ $fh $end_spacing] |
| } else { |
| # overlap contact |
| set dx [- $fw [+ [* 2.0 $sub_surround] [* 2.0 $end_surround] $contact_size]] |
| set dy [- $fh [+ [* 2.0 $sub_surround] [* 2.0 $end_surround] $contact_size]] |
| } |
| |
| # Determine core width and height |
| set corex [+ [* [- $nx 1] $dx] $fw] |
| set corey [+ [* [- $ny 1] $dy] $fh] |
| set corellx [/ [+ [- $corex $fw] $lw] 2.0] |
| set corelly [/ [+ [- $corey $fh] $lh] 2.0] |
| |
| if {$guard != 0} { |
| # Calculate guard ring size (measured to contact center) |
| set gx [+ $corex [* 2.0 [+ $diff_spacing $diff_surround]] $contact_size] |
| set gy [+ $corey [* 2.0 [+ $diff_spacing $diff_surround]] $contact_size] |
| |
| # Draw the guard ring first, because diode may occupy well/substrate plane |
| gf180mcu::guard_ring $gx $gy $parameters |
| } |
| |
| pushbox |
| box move w ${corellx}um |
| box move s ${corelly}um |
| if {($nx > 1) || ($ny > 1)} { |
| pushbox |
| set hfw [/ $fw 2.0] |
| set hfh [/ $fh 2.0] |
| box move w ${hfw}um |
| box move s ${hfh}um |
| box size ${corex}um ${corey}um |
| paint $end_sub_type |
| popbox |
| } |
| for {set xp 0} {$xp < $nx} {incr xp} { |
| pushbox |
| for {set yp 0} {$yp < $ny} {incr yp} { |
| gf180mcu::diode_device $parameters |
| box move n ${dy}um |
| } |
| popbox |
| box move e ${dx}um |
| } |
| popbox |
| popbox |
| |
| tech revert |
| } |
| |
| #---------------------------------------------------------------- |
| |
| proc gf180mcu::diode_nd2ps_03v3_draw {parameters} { |
| |
| # Set a local variable for each rule in ruleset |
| foreach key [dict keys $gf180mcu::ruleset] { |
| set $key [dict get $gf180mcu::ruleset $key] |
| } |
| |
| set newdict [dict create \ |
| dev_type ndiode \ |
| dev_contact_type ndic \ |
| end_type psd \ |
| end_contact_type psc \ |
| end_contact_size 0.25 \ |
| end_sub_type pwell \ |
| dev_spacing 0.30 \ |
| dev_surround ${diff_surround} \ |
| end_spacing ${diff_spacing} \ |
| end_surround ${diff_surround} \ |
| ] |
| set drawdict [dict merge $gf180mcu::ruleset $newdict $parameters] |
| return [gf180mcu::diode_draw $drawdict] |
| } |
| |
| #---------------------------------------------------------------- |
| |
| proc gf180mcu::diode_pd2nw_03v3_draw {parameters} { |
| |
| # Set a local variable for each rule in ruleset |
| foreach key [dict keys $gf180mcu::ruleset] { |
| set $key [dict get $gf180mcu::ruleset $key] |
| } |
| |
| set newdict [dict create \ |
| guard 1 \ |
| dev_type pdiode \ |
| dev_contact_type pdic \ |
| end_type nsd \ |
| end_contact_type nsc \ |
| end_contact_size 0.25 \ |
| end_sub_type nwell \ |
| plus_diff_type psd \ |
| plus_contact_type psc \ |
| sub_type pwell \ |
| dev_spacing 0.30 \ |
| dev_surround ${diff_surround} \ |
| end_spacing ${diff_spacing} \ |
| end_surround ${diff_surround} \ |
| ] |
| set drawdict [dict merge $gf180mcu::ruleset $newdict $parameters] |
| return [gf180mcu::diode_draw $drawdict] |
| } |
| |
| #---------------------------------------------------------------- |
| |
| proc gf180mcu::diode_nd2ps_06v0_draw {parameters} { |
| |
| # Set a local variable for each rule in ruleset |
| foreach key [dict keys $gf180mcu::ruleset] { |
| set $key [dict get $gf180mcu::ruleset $key] |
| } |
| |
| set newdict [dict create \ |
| diff_poly_space 0.30 \ |
| diff_gate_space 0.30 \ |
| diff_spacing 0.36 \ |
| dev_type mvndiode \ |
| dev_contact_type mvndic \ |
| end_type mvpsd \ |
| end_contact_type mvpsc \ |
| end_sub_type pwell \ |
| dev_spacing 0.40 \ |
| dev_surround ${diff_surround} \ |
| end_spacing 0.17 \ |
| end_surround ${diff_surround} \ |
| ] |
| set drawdict [dict merge $gf180mcu::ruleset $newdict $parameters] |
| return [gf180mcu::diode_draw $drawdict] |
| } |
| |
| #---------------------------------------------------------------- |
| |
| proc gf180mcu::diode_pd2nw_06v0_draw {parameters} { |
| |
| # Set a local variable for each rule in ruleset |
| foreach key [dict keys $gf180mcu::ruleset] { |
| set $key [dict get $gf180mcu::ruleset $key] |
| } |
| |
| set newdict [dict create \ |
| diff_poly_space 0.30 \ |
| diff_gate_space 0.30 \ |
| diff_spacing 0.36 \ |
| guard 1 \ |
| dev_type mvpdiode \ |
| dev_contact_type mvpdic \ |
| end_type mvnsd \ |
| end_contact_type mvnsc \ |
| end_sub_type nwell \ |
| sub_surround 0.16 \ |
| plus_diff_type mvpsd \ |
| plus_contact_type mvpsc \ |
| sub_type pwell \ |
| dev_spacing 0.36 \ |
| dev_surround ${diff_surround} \ |
| end_spacing ${diff_spacing} \ |
| end_surround ${diff_surround} \ |
| ] |
| set drawdict [dict merge $gf180mcu::ruleset $newdict $parameters] |
| return [gf180mcu::diode_draw $drawdict] |
| } |
| |
| #---------------------------------------------------------------- |
| # Drawn capactitor routines |
| #---------------------------------------------------------------- |
| # MiM minimum size set to 2.165 to prevent isolated via |
| |
| #ifdef MIM |
| proc gf180mcu::cap_mim_2p0fF_defaults {} { |
| return {w 5.00 l 5.00 val 50.000 carea 25.00 cperi 20.00 \ |
| nx 1 ny 1 dummy 0 square 0 lmin 5.00 wmin 5.00 \ |
| lmax 100.0 wmax 100.0 dc 0 bconnect 1 tconnect 1} |
| } |
| #endif MIM |
| |
| #---------------------------------------------------------------- |
| # Recalculate capacitor values from GUI entries. |
| # Recomputes W/L and Value as long as 2 of them are present |
| # (To be completed) |
| #---------------------------------------------------------------- |
| |
| proc gf180mcu::cap_recalc {field parameters} { |
| # Set a local variable for each parameter (e.g., $l, $w, etc.) |
| foreach key [dict keys $parameters] { |
| set $key [dict get $parameters $key] |
| } |
| switch $field { |
| val { puts stdout "value changed" } |
| w { puts stdout "width changed" } |
| l { puts stdout "length changed" } |
| } |
| dict set parameters val $val |
| dict set parameters w $w |
| dict set parameters l $l |
| } |
| |
| #---------------------------------------------------------------- |
| # Capacitor defaults: |
| #---------------------------------------------------------------- |
| # w Width of drawn cap |
| # l Length of drawn cap |
| # nx Number of devices in X |
| # ny Number of devices in Y |
| # val Default cap value |
| # carea Area |
| # cperi Perimeter |
| # dummy Add dummy cap |
| # square Make square capacitor |
| # |
| # (not user-editable) |
| # |
| # wmin Minimum allowed width |
| # lmin Minimum allowed length |
| # dc Area to remove to calculated area |
| #---------------------------------------------------------------- |
| |
| #---------------------------------------------------------------- |
| # capacitor: Conversion from SPICE netlist parameters to toolkit |
| #---------------------------------------------------------------- |
| |
| proc gf180mcu::cap_convert {parameters} { |
| set pdkparams [dict create] |
| dict for {key value} $parameters { |
| set canonkey $key |
| switch -nocase $key { |
| c_length - |
| c_width - |
| l - |
| w { |
| switch -nocase $key { |
| c_length { |
| set canonkey l |
| } |
| c_width { |
| set canonkey w |
| } |
| } |
| # Length and width are converted to units of microns |
| set value [magic::spice2float $value] |
| set value [expr $value * 1e6] |
| set value [magic::3digitpastdecimal $value] |
| dict set pdkparams [string tolower $canonkey] $value |
| } |
| m { |
| # Convert m to ny |
| dict set pdkparams ny $value |
| } |
| } |
| } |
| return $pdkparams |
| } |
| |
| #ifdef MIM |
| proc gf180mcu::cap_mim_2p0fF_convert {parameters} { |
| return [cap_convert $parameters] |
| } |
| #endif |
| |
| #---------------------------------------------------------------- |
| # capacitor: Interactively specifies the fixed layout parameters |
| #---------------------------------------------------------------- |
| |
| proc gf180mcu::cap_dialog {device parameters} { |
| # Editable fields: w, l, nx, ny, val |
| # Checked fields: square, dummy |
| |
| magic::add_entry val "Value (fF)" $parameters |
| gf180mcu::compute_ctot $parameters |
| magic::add_message ctot "Total capacitance (pF)" $parameters |
| magic::add_entry l "Length (um)" $parameters |
| magic::add_entry w "Width (um)" $parameters |
| magic::add_entry nx "X Repeat" $parameters |
| magic::add_entry ny "Y Repeat" $parameters |
| |
| if {[dict exists $parameters square]} { |
| magic::add_checkbox square "Square capacitor" $parameters |
| } |
| if {[dict exists $parameters bconnect]} { |
| magic::add_checkbox bconnect "Connect bottom plates in array" $parameters |
| } |
| if {[dict exists $parameters tconnect]} { |
| magic::add_checkbox tconnect "Connect top plates in array" $parameters |
| } |
| |
| magic::add_dependency gf180mcu::cap_recalc $device gf180mcu l w val |
| |
| # magic::add_checkbox dummy "Add dummy" $parameters |
| } |
| |
| #ifdef MIM |
| proc gf180mcu::cap_mim_2p0fF_dialog {parameters} { |
| gf180mcu::cap_dialog cap_mim_2p0fF $parameters |
| } |
| #endif |
| |
| #---------------------------------------------------------------- |
| # Capacitor total capacitance computation |
| #---------------------------------------------------------------- |
| |
| proc gf180mcu::compute_ctot {parameters} { |
| foreach key [dict keys $parameters] { |
| set $key [dict get $parameters $key] |
| } |
| set val [magic::spice2float $val] |
| set val [magic::3digitpastdecimal $val] |
| |
| # Compute total capacitance (and convert fF to pF) |
| catch {set magic::ctot_val [expr (0.001 * $val * $nx * $ny)]} |
| } |
| |
| #---------------------------------------------------------------- |
| # Capacitor: Draw a single device |
| #---------------------------------------------------------------- |
| |
| proc gf180mcu::cap_device {parameters} { |
| # Epsilon for avoiding round-off errors |
| set eps 0.0005 |
| |
| # Set local default values if they are not in parameters |
| set cap_surround 0 |
| set bot_surround 0 |
| set top_surround 0 |
| |
| # Set a local variable for each parameter (e.g., $l, $w, etc.) |
| foreach key [dict keys $parameters] { |
| set $key [dict get $parameters $key] |
| } |
| |
| # Draw the device |
| pushbox |
| box size 0 0 |
| |
| pushbox |
| set hw [/ $w 2.0] |
| set hl [/ $l 2.0] |
| box grow e ${hw}um |
| box grow w ${hw}um |
| box grow n ${hl}um |
| box grow s ${hl}um |
| paint ${cap_type} |
| pushbox |
| box grow n -${cap_surround}um |
| box grow s -${cap_surround}um |
| box grow e -${cap_surround}um |
| box grow w -${cap_surround}um |
| paint ${cap_contact_type} |
| pushbox |
| box grow n ${top_surround}um |
| box grow s ${top_surround}um |
| box grow e ${top_surround}um |
| box grow w ${top_surround}um |
| paint ${top_type} |
| set cext [gf180mcu::getbox] |
| popbox |
| popbox |
| pushbox |
| box grow n ${bot_surround}um |
| box grow s ${bot_surround}um |
| box grow e ${bot_surround}um |
| box grow w ${bot_surround}um |
| |
| paint ${bot_type} |
| property FIXED_BBOX [box values] |
| set cext [gf180mcu::unionbox $cext [gf180mcu::getbox]] |
| |
| # Extend bottom metal under contact to right |
| box grow e ${end_spacing}um |
| set chw [/ ${contact_size} 2.0] |
| box grow e ${chw}um |
| box grow e ${end_surround}um |
| paint ${bot_type} |
| |
| popbox |
| popbox |
| |
| # Draw contact to right |
| pushbox |
| box move e ${hw}um |
| box move e ${bot_surround}um |
| box move e ${end_spacing}um |
| set cl [- [+ ${l} [* ${bot_surround} 2.0]] [* ${end_surround} 2.0]] |
| set cl [- ${cl} ${metal_surround}] ;# see below |
| set cext [gf180mcu::unionbox $cext [gf180mcu::draw_contact 0 ${cl} \ |
| ${end_surround} ${metal_surround} ${contact_size} \ |
| ${bot_type} ${top_contact_type} ${top_type} vert]] |
| popbox |
| popbox |
| |
| return $cext |
| |
| # cl shrinks top and bottom to accomodate larger bottom metal |
| # surround rule for contacts near a MiM cap. This should be its |
| # own variable, but metal_surround is sufficient. |
| } |
| |
| #---------------------------------------------------------------- |
| # Metal plate sandwich capacitor: Draw a single device |
| #---------------------------------------------------------------- |
| |
| proc gf180mcu::sandwich_cap_device {parameters} { |
| |
| # Set a local variable for each parameter (e.g., $l, $w, etc.) |
| foreach key [dict keys $parameters] { |
| set $key [dict get $parameters $key] |
| } |
| |
| pushbox |
| box size 0 0 |
| |
| set hw [/ $w 2.0] |
| set hl [/ $l 2.0] |
| |
| set cw [- [* $hw [/ 2.0 3]] [* $cont_surround 2.0]] |
| set cl [- [* $hl [/ 2.0 3]] [* $cont_surround 2.0]] |
| |
| # plate capacitor defines layers p0, p1, etc. |
| for {set i 0} {$i < 20} {incr i} { |
| if {[catch {set layer [subst \$p${i}_type]}]} {break} ;# no more layers defined |
| pushbox |
| box grow e ${hw}um |
| box grow w ${hw}um |
| box grow n ${hl}um |
| box grow s ${hl}um |
| if {![catch {set shrink [subst \$p${i}_shrink]}]} { |
| box grow e -${shrink}um |
| box grow w -${shrink}um |
| box grow n -${shrink}um |
| box grow s -${shrink}um |
| set cutout_spacing [+ [* ${shrink} 2.0] [/ $via_size 2.0] $cont_surround] |
| } else { |
| set cutout_spacing 0 |
| } |
| |
| paint ${layer} |
| |
| if {$i == 1} { |
| # Note that cap_type geometry is coincident with p1_type. |
| # Typically, this will define a layer that outputs as both |
| # poly and a capacitor definition layer. |
| if {[dict exists $parameters cap_type]} { |
| paint $cap_type |
| } |
| } |
| popbox |
| |
| # Even layers connect at corners, odd layers connect at sides. |
| # Even layers cut out the sides, odd layers cut out the corners. |
| # Layer zero has no side contacts or cutout. |
| |
| if {[% $i 2] == 0} { |
| set cornercmd paint |
| set cornersize $cutout_spacing |
| set sidecmd erase |
| set nssidelong [+ $cutout_spacing [/ $hw 3.0]] |
| set ewsidelong [+ $cutout_spacing [/ $hl 3.0]] |
| set sideshort $cutout_spacing |
| } else { |
| set cornercmd erase |
| set cornersize $cutout_spacing |
| set sidecmd paint |
| set nssidelong [/ $hw 3.0] |
| set ewsidelong [/ $hl 3.0] |
| set sideshort $cutout_spacing |
| } |
| |
| if {$i > 0} { |
| pushbox |
| box move e ${hw}um |
| box grow n ${ewsidelong}um |
| box grow s ${ewsidelong}um |
| box grow w ${sideshort}um |
| ${sidecmd} ${layer} |
| popbox |
| pushbox |
| box move n ${hl}um |
| box grow e ${nssidelong}um |
| box grow w ${nssidelong}um |
| box grow s ${sideshort}um |
| ${sidecmd} ${layer} |
| popbox |
| pushbox |
| box move w ${hw}um |
| box grow n ${ewsidelong}um |
| box grow s ${ewsidelong}um |
| box grow e ${sideshort}um |
| ${sidecmd} ${layer} |
| popbox |
| pushbox |
| box move s ${hl}um |
| box grow e ${nssidelong}um |
| box grow w ${nssidelong}um |
| box grow n ${sideshort}um |
| ${sidecmd} ${layer} |
| popbox |
| |
| pushbox |
| box move n ${hl}um |
| box move e ${hw}um |
| box grow s ${cornersize}um |
| box grow w ${cornersize}um |
| ${cornercmd} ${layer} |
| popbox |
| pushbox |
| box move n ${hl}um |
| box move w ${hw}um |
| box grow s ${cornersize}um |
| box grow e ${cornersize}um |
| ${cornercmd} ${layer} |
| popbox |
| pushbox |
| box move s ${hl}um |
| box move e ${hw}um |
| box grow n ${cornersize}um |
| box grow w ${cornersize}um |
| ${cornercmd} ${layer} |
| popbox |
| pushbox |
| box move s ${hl}um |
| box move w ${hw}um |
| box grow n ${cornersize}um |
| box grow e ${cornersize}um |
| ${cornercmd} ${layer} |
| popbox |
| } |
| } |
| |
| # Draw contacts after all layers have been drawn, so that erasing |
| # layers does not affect the contacts. |
| |
| for {set i 0} {$i < 20} {incr i} { |
| if {![catch {set contact [subst \$p${i}_contact_type]}]} { |
| set layer [subst \$p${i}_type] |
| set j [+ $i 1] |
| set toplayer [subst \$p${j}_type] |
| |
| # Draw corner contacts |
| pushbox |
| box move e ${hw}um |
| box move n ${hl}um |
| gf180mcu::draw_contact 0 0 \ |
| ${cont_surround} ${cont_surround} ${via_size} \ |
| ${layer} ${contact} ${toplayer} full |
| popbox |
| pushbox |
| box move w ${hw}um |
| box move n ${hl}um |
| gf180mcu::draw_contact 0 0 \ |
| ${cont_surround} ${cont_surround} ${via_size} \ |
| ${layer} ${contact} ${toplayer} full |
| popbox |
| pushbox |
| box move e ${hw}um |
| box move s ${hl}um |
| gf180mcu::draw_contact 0 0 \ |
| ${cont_surround} ${cont_surround} ${via_size} \ |
| ${layer} ${contact} ${toplayer} full |
| popbox |
| pushbox |
| box move w ${hw}um |
| box move s ${hl}um |
| gf180mcu::draw_contact 0 0 \ |
| ${cont_surround} ${cont_surround} ${via_size} \ |
| ${layer} ${contact} ${toplayer} full |
| popbox |
| |
| # Draw side contacts (except on poly) |
| if {$i > 0} { |
| pushbox |
| box move w ${hw}um |
| gf180mcu::draw_contact 0 ${cl} \ |
| ${cont_surround} ${cont_surround} ${via_size} \ |
| ${layer} ${contact} ${toplayer} full |
| popbox |
| pushbox |
| box move e ${hw}um |
| gf180mcu::draw_contact 0 ${cl} \ |
| ${cont_surround} ${cont_surround} ${via_size} \ |
| ${layer} ${contact} ${toplayer} full |
| popbox |
| pushbox |
| box move n ${hl}um |
| gf180mcu::draw_contact ${cw} 0 \ |
| ${cont_surround} ${cont_surround} ${via_size} \ |
| ${layer} ${contact} ${toplayer} full |
| popbox |
| pushbox |
| box move s ${hl}um |
| gf180mcu::draw_contact ${cw} 0 \ |
| ${cont_surround} ${cont_surround} ${via_size} \ |
| ${layer} ${contact} ${toplayer} full |
| popbox |
| } |
| } else { |
| break |
| } |
| } |
| |
| popbox |
| # Bounding box is the same as the device length and width |
| set cext [list -$hw -$hl $hw $hl] |
| return $cext |
| } |
| |
| #---------------------------------------------------------------- |
| # Capacitor: Draw the tiled device |
| #---------------------------------------------------------------- |
| |
| proc gf180mcu::cap_draw {parameters} { |
| tech unlock * |
| |
| # Set defaults if they are not in parameters |
| set coverlap 0 ;# overlap capacitors at contacts |
| set guard 0 ;# draw a guard ring |
| set sandwich 0 ;# this is not a plate sandwich capacitor |
| set cap_spacing 0 ;# abutted caps if spacing is zero |
| set wide_cap_spacing 0 ;# additional spacing for wide metal rule |
| set wide_cap_width 0 |
| set end_spacing 0 |
| set end_surround 0 |
| set bot_surround 0 |
| set top_metal_width 0 |
| set bconnect 0 ;# connect bottom plates in array |
| set tconnect 0 ;# connect top plates in array |
| set top_type "" |
| |
| # Set a local variable for each parameter (e.g., $l, $w, etc.) |
| foreach key [dict keys $parameters] { |
| set $key [dict get $parameters $key] |
| } |
| |
| # Normalize distance units to microns |
| set w [magic::spice2float $w] |
| set l [magic::spice2float $l] |
| |
| pushbox |
| box values 0 0 0 0 |
| |
| # Determine the base device dimensions by drawing one device |
| # while all layers are locked (nothing drawn). This allows the |
| # base drawing routine to do complicated geometry without having |
| # to duplicate it here with calculations. |
| |
| tech lock * |
| if {$sandwich == 1} { |
| set bbox [gf180mcu::sandwich_cap_device $parameters] |
| } else { |
| set bbox [gf180mcu::cap_device $parameters] |
| } |
| # puts stdout "Diagnostic: Device bounding box e $bbox (um)" |
| tech unlock * |
| |
| set fw [- [lindex $bbox 2] [lindex $bbox 0]] |
| set fh [- [lindex $bbox 3] [lindex $bbox 1]] |
| set lw [+ [lindex $bbox 2] [lindex $bbox 0]] |
| set lh [+ [lindex $bbox 3] [lindex $bbox 1]] |
| |
| set dwide 0 |
| if {($fw >= $wide_cap_width) && ($fh >= $wide_cap_width)} { |
| set dwide $wide_cap_spacing |
| } |
| |
| # Determine tile width and height (depends on overlap) |
| if {$coverlap == 0} { |
| set dy [+ $fh $cap_spacing $dwide] |
| } else { |
| # overlap at end contact |
| set dy [- $fh [+ $end_surround $end_surround $contact_size]] |
| } |
| # Contact is placed on right so spacing is determined by end_spacing. |
| set dx [+ $fw $end_spacing $dwide] |
| |
| # Determine core width and height |
| set corex [+ [* [- $nx 1] $dx] $fw] |
| set corey [+ [* [- $ny 1] $dy] $fh] |
| set corellx [/ [+ [- $corex $fw] $lw] 2.0] |
| set corelly [/ [+ [- $corey $fh] $lh] 2.0] |
| |
| if {$guard != 0} { |
| # Calculate guard ring size (measured to contact center) |
| set gx [+ $corex [* 2.0 [+ $cap_diff_spacing $diff_surround]] $contact_size] |
| set gy [+ $corey [* 2.0 [+ $end_spacing $diff_surround]] $contact_size] |
| |
| # Draw the guard ring first. |
| gf180mcu::guard_ring $gx $gy $parameters |
| } |
| |
| set top_metal_width [+ ${contact_size} ${end_surround} ${end_surround}] |
| set hmw [/ $top_metal_width 2.0] |
| set hdy [/ $dy 2.0] |
| set cdx [+ [/ ${w} 2.0] ${bot_surround} ${end_spacing}] |
| |
| pushbox |
| box move w ${corellx}um |
| box move s ${corelly}um |
| for {set xp 0} {$xp < $nx} {incr xp} { |
| pushbox |
| for {set yp 0} {$yp < $ny} {incr yp} { |
| if {$sandwich == 1} { |
| gf180mcu::sandwich_cap_device $parameters |
| } else { |
| gf180mcu::cap_device $parameters |
| } |
| if {$ny > 1} { |
| pushbox |
| box grow e ${hmw}um |
| box grow w ${hmw}um |
| box grow n ${hdy}um |
| box grow s ${hdy}um |
| if {($top_type != "") && ($tconnect == 1)} { |
| paint ${top_type} |
| } |
| if {($top_type != "") && ($bconnect == 1)} { |
| box move e ${cdx}um |
| paint ${top_type} |
| } |
| popbox |
| } |
| box move n ${dy}um |
| } |
| popbox |
| box move e ${dx}um |
| } |
| popbox |
| popbox |
| |
| tech revert |
| } |
| |
| #---------------------------------------------------------------- |
| |
| #ifdef MIM |
| proc gf180mcu::cap_mim_2p0fF_draw {parameters} { |
| set newdict [dict create \ |
| #ifdef METALS6 |
| top_type mtp \ |
| top_contact_type viatp \ |
| bot_type m5 \ |
| #endif |
| #ifdef METALS5 |
| top_type m5 \ |
| top_contact_type via4 \ |
| bot_type m4 \ |
| #endif |
| #ifdef METALS4 |
| top_type m4 \ |
| top_contact_type via3 \ |
| bot_type m3 \ |
| #endif |
| #ifdef METALS3 |
| top_type m3 \ |
| top_contact_type via2 \ |
| bot_type m2 \ |
| #endif |
| cap_type mimcap \ |
| cap_contact_type mimcc \ |
| bot_surround 0.6 \ |
| cap_spacing 0.6 \ |
| cap_surround 0.4 \ |
| top_surround 0.0 \ |
| end_surround 0.31 \ |
| #ifdef THICKMET3P0 |
| metal_surround 0.11 \ |
| contact_size 1.80 \ |
| end_spacing 1.28 \ |
| #elseif (THICKMET1P1 || THICKMET0P9) |
| metal_surround 0.05 \ |
| contact_size 0.44 \ |
| end_spacing 0.67 \ |
| #else |
| metal_surround 0.05 \ |
| contact_size 0.36 \ |
| end_spacing 0.60 \ |
| #endif (!(THICKMET3P0 || THICKMET1P1 || THICKMET0P9)) |
| ] |
| set drawdict [dict merge $gf180mcu::ruleset $newdict $parameters] |
| return [gf180mcu::cap_draw $drawdict] |
| } |
| #endif (MIM) |
| |
| #---------------------------------------------------------------- |
| # capacitor: Check device parameters for out-of-bounds values |
| #---------------------------------------------------------------- |
| |
| proc gf180mcu::cap_check {parameters} { |
| # In case wmax and/or lmax are undefined |
| set lmax 0 |
| set wmax 0 |
| |
| # Set a local variable for each parameter (e.g., $l, $w, etc.) |
| foreach key [dict keys $parameters] { |
| set $key [dict get $parameters $key] |
| } |
| |
| # Normalize distance units to microns |
| set l [magic::spice2float $l] |
| set l [magic::3digitpastdecimal $l] |
| set w [magic::spice2float $w] |
| set w [magic::3digitpastdecimal $w] |
| |
| set val [magic::spice2float $val] |
| set carea [magic::spice2float $carea] |
| set cperi [magic::spice2float $cperi] |
| set dc [magic::spice2float $dc] |
| |
| if {$square == 1} { |
| # Calculate L and W from value |
| set a $carea |
| set b [expr $cperi * 4] |
| set c [expr -4 * $dc - $val] |
| set l [expr ((-$b + sqrt($b * $b - (4 * $a * $c))) / (2 * $a))] |
| dict set parameters l [magic::float2spice $l] |
| set w $l |
| dict set parameters w [magic::float2spice $w] |
| } elseif {$l == 0} { |
| # Calculate L from W and value |
| set l [expr (($val + 4 * $dc - 2 * $w * $cperi) / ($w * $carea + 2 * $cperi))] |
| dict set parameters l [magic::float2spice $l] |
| } elseif {$w == 0} { |
| # Calculate W from L and value |
| set w [expr (($val + 4 * $dc - 2 * $l * $cperi) / ($l * $carea + 2 * $cperi))] |
| dict set parameters w [magic::float2spice $w] |
| } |
| if {$w < $wmin} { |
| puts stderr "Capacitor width must be >= $wmin" |
| dict set parameters w $wmin |
| set w $wmin |
| } |
| if {$l < $lmin} { |
| puts stderr "Capacitor length must be >= $lmin" |
| dict set parameters l $lmin |
| set l $lmin |
| } |
| if {($wmax > 0) && ($w > $wmax)} { |
| puts stderr "Capacitor width must be <= $wmax" |
| dict set parameters w $wmax |
| set w $wmax |
| } |
| if {($lmax > 0) && ($l > $lmax)} { |
| puts stderr "Capacitor length must be <= $lmax" |
| dict set parameters l $lmax |
| set l $lmax |
| } |
| # Calculate value from L and W |
| set cval [expr ($l * $w * $carea + 2 * ($l + $w) * $cperi - 4 * $dc)] |
| dict set parameters val [magic::float2spice $cval] |
| gf180mcu::compute_ctot $parameters |
| |
| return $parameters |
| } |
| |
| #ifdef MIM |
| proc gf180mcu::cap_mim_2p0fF_check {parameters} { |
| return [gf180mcu::cap_check $parameters] |
| } |
| #endif |
| |
| #---------------------------------------------------------------- |
| # Drawn resistors |
| #---------------------------------------------------------------- |
| |
| #---------------------------------------------------------------- |
| # Resistor defaults: |
| #---------------------------------------------------------------- |
| # User editable values: |
| # |
| # val Resistor value in ohms |
| # w Width |
| # l Length |
| # t Number of turns |
| # m Number devices in Y |
| # nx Number devices in X |
| # snake Use snake geometry |
| # dummy Flag to mark addition of dummy resistor |
| # |
| # Non-user editable values: |
| # |
| # wmin Minimum allowed width |
| # lmin Minimum allowed length |
| # rho Resistance in ohms per square |
| # dw Delta width |
| # term Resistance per terminal |
| # sterm Additional resistance per terminal for snake geometry |
| #---------------------------------------------------------------- |
| |
| #---------------------------------------------------------------- |
| # rnw: Specify all user-editable default values and those |
| # needed by nwell_check |
| #---------------------------------------------------------------- |
| |
| proc gf180mcu::nwell_defaults {} { |
| return {w 2.000 l 10.00 m 1 nx 1 wmin 2.000 lmin 2.00 \ |
| rho 1680 val 8400 dummy 0 dw 0.25 term 1.0 snake 0 \ |
| glc 1 grc 1 gtc 0 gbc 0 roverlap 0 endcov 100 \ |
| full_metal 1} |
| } |
| |
| #---------------------------------------------------------------- |
| # rpp1: Specify all user-editable default values and those |
| # needed by rp1_check |
| #---------------------------------------------------------------- |
| |
| proc gf180mcu::ppolyf_u_defaults {} { |
| return {w 0.80 l 1.00 m 1 nx 1 wmin 0.80 lmin 1.00 \ |
| rho 315 val 394 dummy 0 dw 0.07 term 0.0 \ |
| sterm 0.0 caplen 0.4 snake 0 \ |
| glc 1 grc 1 gtc 0 gbc 0 roverlap 0 endcov 100 \ |
| full_metal 1} |
| } |
| |
| proc gf180mcu::npolyf_u_defaults {} { |
| return {w 0.80 l 1.00 m 1 nx 1 wmin 0.80 lmin 1.00 \ |
| rho 300 val 375 dummy 0 dw 0.09 term 0.0 \ |
| sterm 0.0 caplen 0.4 snake 0 \ |
| glc 1 grc 1 gtc 0 gbc 0 roverlap 0 endcov 100 \ |
| full_metal 1} |
| } |
| |
| #---------------------------------------------------------------- |
| # rpp1s: Specify all user-editable default values and those |
| # needed by rp1_check |
| #---------------------------------------------------------------- |
| |
| proc gf180mcu::ppolyf_s_defaults {} { |
| return {w 0.80 l 1.00 m 1 nx 1 wmin 0.80 lmin 1.00 \ |
| rho 7 val 8.75 dummy 0 dw 0.01 term 0.0 \ |
| sterm 0.0 caplen 0.4 snake 0 \ |
| glc 1 grc 1 gtc 0 gbc 0 roverlap 0 endcov 100 \ |
| full_metal 1} |
| } |
| |
| proc gf180mcu::npolyf_s_defaults {} { |
| return {w 0.80 l 1.00 m 1 nx 1 wmin 0.80 lmin 1.00 \ |
| rho 7 val 8.75 dummy 0 dw 0.01 term 0.0 \ |
| sterm 0.0 caplen 0.4 snake 0 \ |
| glc 1 grc 1 gtc 0 gbc 0 roverlap 0 endcov 100 \ |
| full_metal 1} |
| } |
| |
| #---------------------------------------------------------------- |
| # nplus_u: Specify all user-editable default values and those |
| # needed by nplus_u_check |
| #---------------------------------------------------------------- |
| |
| proc gf180mcu::nplus_u_defaults {} { |
| return {w 1.000 l 1.000 m 1 nx 1 wmin 1.00 lmin 1.00 \ |
| rho 85 val 85.0 dummy 0 dw 0.05 term 0.0 \ |
| sterm 0.0 caplen 0.4 snake 0 \ |
| glc 1 grc 1 gtc 0 gbc 0 roverlap 0 endcov 100 \ |
| full_metal 1} |
| } |
| |
| #---------------------------------------------------------------- |
| # pplus_u: Specify all user-editable default values and those |
| # needed by pplus_u_check |
| #---------------------------------------------------------------- |
| |
| proc gf180mcu::pplus_u_defaults {} { |
| return {w 1.000 l 1.000 m 1 nx 1 wmin 1.00 lmin 1.00 \ |
| rho 128 val 128.0 dummy 0 dw 0.02 term 0.0 \ |
| sterm 0.0 caplen 0.60 snake 0 \ |
| glc 1 grc 1 gtc 0 gbc 0 roverlap 0 endcov 100 \ |
| full_metal 1} |
| } |
| |
| #---------------------------------------------------------------- |
| # rm1: Specify all user-editable default values and those needed |
| # by rm1_check |
| #---------------------------------------------------------------- |
| |
| proc gf180mcu::rm1_defaults {} { |
| return {w 0.160 l 0.160 m 1 nx 1 wmin 0.16 lmin 0.16 \ |
| rho 0.076 val 0.076 dummy 0 dw 0.0 term 0.0 \ |
| roverlap 0} |
| } |
| |
| #---------------------------------------------------------------- |
| # rm2: Specify all user-editable default values and those needed |
| # by rm2_check |
| #---------------------------------------------------------------- |
| |
| proc gf180mcu::rm2_defaults {} { |
| return {w 0.200 l 0.200 m 1 nx 1 wmin 0.20 lmin 0.20 \ |
| rho 0.053 val 0.053 dummy 0 dw 0.0 term 0.0 \ |
| roverlap 0} |
| } |
| |
| #---------------------------------------------------------------- |
| # Additional entries for rm3, rm4, rm5, and rmtp, depending on |
| # the back-end metal stack. |
| #---------------------------------------------------------------- |
| |
| #ifdef METALS3 || METALS4 || METALS5 || METALS6 |
| proc gf180mcu::rm3_defaults {} { |
| return {w 0.200 l 0.200 m 1 nx 1 wmin 0.20 lmin 0.20 \ |
| rho 0.053 val 0.053 dummy 0 dw 0.0 term 0.0 \ |
| roverlap 0} |
| } |
| #endif (METALS3 || METALS4 || METALS5 || METALS6) |
| |
| #ifdef METALS4 || METALS5 || METALS6 |
| proc gf180mcu::rm4_defaults {} { |
| return {w 0.200 l 0.200 m 1 nx 1 wmin 0.20 lmin 0.20 \ |
| rho 0.053 val 0.053 dummy 0 dw 0.0 term 0.0 \ |
| roverlap 0} |
| } |
| #endif (METALS4 || METALS5 || METALS6) |
| #ifdef METALS5 || METALS6 |
| proc gf180mcu::rm5_defaults {} { |
| return {w 0.200 l 0.200 m 1 nx 1 wmin 0.20 lmin 0.20 \ |
| rho 0.053 val 0.053 dummy 0 dw 0.0 term 0.0 \ |
| roverlap 0} |
| } |
| #endif (METALS5 || METALS6) |
| #ifdef METALS6 |
| proc gf180mcu::rmtp_defaults {} { |
| return {w 0.200 l 0.200 m 1 nx 1 wmin 0.20 lmin 0.20 \ |
| rho 0.053 val 0.053 dummy 0 dw 0.0 term 0.0 \ |
| roverlap 0} |
| } |
| #endif (METALS6) |
| |
| #ifdef HRPOLY1K |
| |
| #---------------------------------------------------------------- |
| # ppolyf_u_1k: Specify all user-editable default values and those |
| # needed by npolyf_u_check |
| #---------------------------------------------------------------- |
| |
| proc gf180mcu::ppolyf_u_1k_defaults {} { |
| return {w 1.000 l 2.000 m 1 nx 1 wmin 1.000 lmin 1.000 \ |
| rho 1000 val 2000 dummy 0 dw 0.0 term 0.0 \ |
| sterm 0.0 caplen 0.4 snake 0 \ |
| glc 1 grc 1 gtc 0 gbc 0 roverlap 0 endcov 100 \ |
| full_metal 1 \ |
| compatible {ppolyf_u_1k ppolyf_u_1k_6p0}} |
| } |
| |
| proc gf180mcu::ppolyf_u_1k_6p0_defaults {} { |
| return {w 1.000 l 2.000 m 1 nx 1 wmin 1.000 lmin 1.000 \ |
| rho 1000 val 2000 dummy 0 dw 0.0 term 0.0 \ |
| sterm 0.0 caplen 0.4 snake 0 \ |
| glc 1 grc 1 gtc 0 gbc 0 roverlap 0 endcov 100 \ |
| full_metal 1 \ |
| compatible {ppolyf_u_1k ppolyf_u_1k_6p0}} |
| } |
| #endif (HRPOLY1K) |
| |
| #---------------------------------------------------------------- |
| # resistor: Conversion from SPICE netlist parameters to toolkit |
| #---------------------------------------------------------------- |
| |
| proc gf180mcu::res_convert {parameters} { |
| set pdkparams [dict create] |
| dict for {key value} $parameters { |
| set canonkey $key |
| switch -nocase $key { |
| r_length - |
| r_width - |
| l - |
| w { |
| switch -nocase $key { |
| r_length { |
| set canonkey l |
| } |
| r_width { |
| set canonkey w |
| } |
| } |
| # Length and width are converted to units of microns |
| set value [magic::spice2float $value] |
| set value [expr $value * 1e6] |
| set value [magic::3digitpastdecimal $value] |
| dict set pdkparams [string tolower $canonkey] $value |
| } |
| } |
| } |
| return $pdkparams |
| } |
| |
| #---------------------------------------------------------------- |
| |
| proc gf180mcu::nwell_convert {parameters} { |
| return [gf180mcu::res_convert $parameters] |
| } |
| |
| proc gf180mcu::ppolyf_u_convert {parameters} { |
| return [gf180mcu::res_convert $parameters] |
| } |
| |
| proc gf180mcu::ppolyf_s_convert {parameters} { |
| return [gf180mcu::res_convert $parameters] |
| } |
| |
| proc gf180mcu::npolyf_s_convert {parameters} { |
| return [gf180mcu::res_convert $parameters] |
| } |
| |
| proc gf180mcu::npolyf_u_convert {parameters} { |
| return [gf180mcu::res_convert $parameters] |
| } |
| |
| proc gf180mcu::nplus_u_convert {parameters} { |
| return [gf180mcu::res_convert $parameters] |
| } |
| |
| proc gf180mcu::pplus_u_convert {parameters} { |
| return [gf180mcu::res_convert $parameters] |
| } |
| |
| proc gf180mcu::rm1_convert {parameters} { |
| return [gf180mcu::res_convert $parameters] |
| } |
| |
| proc gf180mcu::rm2_convert {parameters} { |
| return [gf180mcu::res_convert $parameters] |
| } |
| |
| #ifdef METALS3 || METALS4 || METALS5 || METALS6 |
| proc gf180mcu::rm3_convert {parameters} { |
| return [gf180mcu::res_convert $parameters] |
| } |
| #endif (METALS3 || METALS4 || METALS5 || METALS6) |
| |
| #ifdef METALS4 || METALS5 || METALS6 |
| proc gf180mcu::rm4_convert {parameters} { |
| return [gf180mcu::res_convert $parameters] |
| } |
| #endif (METALS4 || METALS5 || METALS6) |
| #ifdef METALS5 || METALS6 |
| proc gf180mcu::rm5_convert {parameters} { |
| return [gf180mcu::res_convert $parameters] |
| } |
| #endif (METALS5 || METALS6) |
| #ifdef METALS6 |
| proc gf180mcu::rmtp_convert {parameters} { |
| return [gf180mcu::res_convert $parameters] |
| } |
| #endif (METALS6) |
| |
| #ifdef HRPOLY1K |
| proc gf180mcu::ppolyf_u_1k_convert {parameters} { |
| return [gf180mcu::res_convert $parameters] |
| } |
| |
| proc gf180mcu::ppolyf_u_1k_6p0_convert {parameters} { |
| return [gf180mcu::res_convert $parameters] |
| } |
| #endif (HRPOLY1K) |
| |
| #---------------------------------------------------------------- |
| # resistor: Interactively specifies the fixed layout parameters |
| #---------------------------------------------------------------- |
| |
| proc gf180mcu::res_dialog {device parameters} { |
| # Editable fields: w, l, t, nx, m, val |
| # Checked fields: |
| |
| magic::add_entry val "Value (ohms)" $parameters |
| if {[dict exists $parameters snake]} { |
| gf180mcu::compute_ltot $parameters |
| magic::add_message ltot "Total length (um)" $parameters |
| } |
| magic::add_entry l "Length (um)" $parameters |
| magic::add_entry w "Width (um)" $parameters |
| magic::add_entry nx "X Repeat" $parameters |
| magic::add_entry m "Y Repeat" $parameters |
| if {[dict exists $parameters endcov]} { |
| magic::add_entry endcov "End contact coverage (%)" $parameters |
| } |
| |
| if {[dict exists $parameters compatible]} { |
| set sellist [dict get $parameters compatible] |
| # Reserved word "gencell" has special behavior to change the |
| # underlying device type |
| dict set parameters gencell $device |
| magic::add_selectlist gencell "Device type" $sellist $parameters |
| } |
| |
| # magic::add_checkbox dummy "Add dummy" $parameters |
| |
| if {[dict exists $parameters snake]} { |
| magic::add_checkbox snake "Use snake geometry" $parameters |
| } |
| if {[dict exists $parameters roverlap]} { |
| if {[dict exists $parameters endcov]} { |
| magic::add_checkbox roverlap "Overlap at end contact" $parameters |
| } else { |
| magic::add_checkbox roverlap "Overlap at ends" $parameters |
| } |
| } |
| magic::add_checkbox full_metal "Full metal guard ring" $parameters |
| if {[dict exists $parameters glc]} { |
| magic::add_checkbox glc "Add left guard ring contact" $parameters |
| } |
| if {[dict exists $parameters grc]} { |
| magic::add_checkbox grc "Add right guard ring contact" $parameters |
| } |
| if {[dict exists $parameters gtc]} { |
| magic::add_checkbox gtc "Add top guard ring contact" $parameters |
| } |
| if {[dict exists $parameters gbc]} { |
| magic::add_checkbox gbc "Add bottom guard ring contact" $parameters |
| } |
| |
| if {[dict exists $parameters snake]} { |
| magic::add_dependency gf180mcu::res_recalc $device gf180mcu l w val nx snake |
| } else { |
| magic::add_dependency gf180mcu::res_recalc $device gf180mcu l w val nx |
| } |
| } |
| |
| #---------------------------------------------------------------- |
| |
| proc gf180mcu::nwell_dialog {parameters} { |
| gf180mcu::res_dialog nwell $parameters |
| } |
| |
| proc gf180mcu::ppolyf_u_dialog {parameters} { |
| gf180mcu::res_dialog ppolyf_u $parameters |
| } |
| |
| proc gf180mcu::npolyf_u_dialog {parameters} { |
| gf180mcu::res_dialog npolyf_u $parameters |
| } |
| |
| proc gf180mcu::ppolyf_s_dialog {parameters} { |
| gf180mcu::res_dialog ppolyf_s $parameters |
| } |
| |
| proc gf180mcu::npolyf_s_dialog {parameters} { |
| gf180mcu::res_dialog npolyf_s $parameters |
| } |
| |
| proc gf180mcu::nplus_u_dialog {parameters} { |
| gf180mcu::res_dialog nplus_u $parameters |
| } |
| |
| proc gf180mcu::pplus_u_dialog {parameters} { |
| gf180mcu::res_dialog pplus_u $parameters |
| } |
| |
| proc gf180mcu::nplus_u_3p3_dialog {parameters} { |
| gf180mcu::res_dialog nplus_u_3p3 $parameters |
| } |
| |
| proc gf180mcu::pplus_u_3p3_dialog {parameters} { |
| gf180mcu::res_dialog pplus_u_3p3 $parameters |
| } |
| |
| proc gf180mcu::rm1_dialog {parameters} { |
| gf180mcu::res_dialog rm1 $parameters |
| } |
| |
| proc gf180mcu::rm2_dialog {parameters} { |
| gf180mcu::res_dialog rm2 $parameters |
| } |
| |
| #ifdef METALS3 || METALS4 || METALS5 || METALS6 |
| proc gf180mcu::rm3_dialog {parameters} { |
| gf180mcu::res_dialog rm3 $parameters |
| } |
| #endif (METALS3 || METALS4 || METALS5 || METALS6) |
| |
| #ifdef METALS4 || METALS5 || METALS6 |
| proc gf180mcu::rm4_dialog {parameters} { |
| gf180mcu::res_dialog rm4 $parameters |
| } |
| #endif (METALS4 || METALS5 || METALS6) |
| #ifdef METALS5 || METALS6 |
| proc gf180mcu::rm5_dialog {parameters} { |
| gf180mcu::res_dialog rm5 $parameters |
| } |
| #endif (METALS5 || METALS6) |
| #ifdef METALS6 |
| proc gf180mcu::rmtp_dialog {parameters} { |
| gf180mcu::res_dialog rmtp $parameters |
| } |
| #endif (METALS6) |
| |
| #ifdef HRPOLY1K |
| proc gf180mcu::ppolyf_u_1k_dialog {parameters} { |
| gf180mcu::res_dialog ppolyf_u_1k $parameters |
| } |
| |
| proc gf180mcu::ppolyf_u_1k_6p0_dialog {parameters} { |
| gf180mcu::res_dialog ppolyf_u_1k_6p0 $parameters |
| } |
| #endif (HRPOLY1K) |
| |
| #---------------------------------------------------------------- |
| # Resistor: Draw a single device in straight geometry |
| #---------------------------------------------------------------- |
| |
| proc gf180mcu::res_device {parameters} { |
| # Epsilon for avoiding round-off errors |
| set eps 0.0005 |
| |
| # Set local default values if they are not in parameters |
| set endcov 0 ;# percent coverage of end contacts |
| set well_res_overlap 0 ;# not a well resistor |
| set end_contact_type "" ;# no contacts for metal resistors |
| |
| # Set a local variable for each parameter (e.g., $l, $w, etc.) |
| foreach key [dict keys $parameters] { |
| set $key [dict get $parameters $key] |
| } |
| |
| # Draw the resistor and endcaps |
| pushbox |
| box size 0 0 |
| pushbox |
| set hw [/ $w 2.0] |
| set hl [/ $l 2.0] |
| box grow n ${hl}um |
| box grow s ${hl}um |
| box grow e ${hw}um |
| box grow w ${hw}um |
| |
| pushbox |
| box grow n ${res_to_endcont}um |
| box grow s ${res_to_endcont}um |
| if {$well_res_overlap > 0} { |
| set well_extend [+ ${well_res_overlap} [/ ${contact_size} 2.0] ${end_surround}] |
| box grow n ${well_extend}um |
| box grow s ${well_extend}um |
| paint ${well_res_type} |
| } else { |
| paint ${end_type} |
| } |
| set cext [gf180mcu::getbox] |
| popbox |
| |
| if {$well_res_overlap > 0} { |
| erase ${well_res_type} |
| } else { |
| erase ${end_type} |
| } |
| paint ${res_type} |
| popbox |
| |
| # Reduce contact sizes by (end type) surround so that |
| # the contact area edges match the device type width. |
| # (Minimum dimensions will be enforced by the contact drawing routine) |
| set epl [- ${w} [* ${end_surround} 2]] ;# end contact width |
| |
| # Reduce end material size for well resistor types |
| if {$well_res_overlap > 0} { |
| set epl [- ${epl} [* ${well_res_overlap} 2]] |
| } |
| |
| # Reduce by coverage percentage unless overlapping at contacts |
| if {(${roverlap} == 0) && (${endcov} > 0)} { |
| set cpl [* ${epl} [/ ${endcov} 100.0]] |
| } else { |
| set cpl $epl |
| } |
| |
| set hepl [+ [/ ${epl} 2.0] ${end_surround}] |
| set hesz [+ [/ ${contact_size} 2.0] ${end_surround}] |
| |
| # Top end material & contact |
| pushbox |
| box move n ${hl}um |
| box move n ${res_to_endcont}um |
| |
| pushbox |
| box size 0 0 |
| box grow n ${hesz}um |
| box grow s ${hesz}um |
| box grow e ${hepl}um |
| box grow w ${hepl}um |
| paint ${end_type} |
| set cext [gf180mcu::unionbox $cext [gf180mcu::getbox]] |
| popbox |
| |
| if {${end_contact_type} != ""} { |
| set cext [gf180mcu::unionbox $cext [gf180mcu::draw_contact ${cpl} 0 \ |
| ${end_surround} ${metal_surround} ${contact_size} \ |
| ${end_type} ${end_contact_type} m1 horz]] |
| } |
| popbox |
| |
| # Bottom end material & contact |
| pushbox |
| box move s ${hl}um |
| box move s ${res_to_endcont}um |
| |
| pushbox |
| box size 0 0 |
| box grow n ${hesz}um |
| box grow s ${hesz}um |
| box grow e ${hepl}um |
| box grow w ${hepl}um |
| paint ${end_type} |
| set cext [gf180mcu::unionbox $cext [gf180mcu::getbox]] |
| popbox |
| |
| if {${end_contact_type} != ""} { |
| set cext [gf180mcu::unionbox $cext [gf180mcu::draw_contact ${cpl} 0 \ |
| ${end_surround} ${metal_surround} ${contact_size} \ |
| ${end_type} ${end_contact_type} m1 horz]] |
| } |
| popbox |
| |
| popbox |
| return $cext |
| } |
| |
| #---------------------------------------------------------------- |
| # Resistor: Draw a single device in snake geometry |
| #---------------------------------------------------------------- |
| |
| proc gf180mcu::res_snake_device {nf parameters} { |
| # nf is the number of fingers of the snake geometry |
| |
| # Epsilon for avoiding round-off errors |
| set eps 0.0005 |
| |
| # Set local default values if they are not in parameters |
| set endcov 100 ;# percent coverage of end contacts |
| set well_res_overlap 0 ;# not a well resistor |
| set end_contact_type "" ;# no contacts for metal resistors |
| set mask_clearance 0 ;# additional length to clear mask |
| |
| # Set a local variable for each parameter (e.g., $l, $w, etc.) |
| foreach key [dict keys $parameters] { |
| set $key [dict get $parameters $key] |
| } |
| |
| # Compute half width and length |
| set hw [/ $w 2.0] |
| set hl [/ $l 2.0] |
| |
| # Reduce contact sizes by (end type) surround so that |
| # the contact area edges match the device type width. |
| # (Minimum dimensions will be enforced by the contact drawing routine) |
| set epl [- ${w} [* ${end_surround} 2]] ;# end contact width |
| |
| # Reduce contact size for well resistor types |
| if {$well_res_overlap > 0} { |
| set epl [- ${epl} [* ${well_res_overlap} 2]] |
| } |
| |
| # Reduce contact part of end by coverage percentage |
| if {${endcov} > 0} { |
| set cpl [* ${epl} [/ ${endcov} 100.0]] |
| } else { |
| set cpl $epl |
| } |
| |
| set hepl [+ [/ ${epl} 2.0] ${end_surround}] |
| set hesz [+ [/ ${contact_size} 2.0] ${end_surround}] |
| |
| pushbox |
| box size 0 0 ;# Position is taken from caller |
| |
| # Front end contact (always bottom) |
| pushbox |
| box move s ${hl}um |
| pushbox |
| box move s ${mask_clearance}um |
| box move s ${res_to_endcont}um |
| |
| pushbox |
| box size 0 0 |
| box grow n ${hesz}um |
| box grow s ${hesz}um |
| box grow e ${hepl}um |
| box grow w ${hepl}um |
| paint ${end_type} |
| set cext [gf180mcu::getbox] |
| popbox |
| |
| if {${end_contact_type} != ""} { |
| set cext [gf180mcu::draw_contact ${cpl} 0 \ |
| ${end_surround} ${metal_surround} ${contact_size} \ |
| ${end_type} ${end_contact_type} m1 horz] |
| } |
| popbox |
| |
| # Draw portion between resistor end and contact. |
| box grow e ${hw}um |
| box grow w ${hw}um |
| pushbox |
| box grow s ${mask_clearance}um |
| paint ${res_type} |
| popbox |
| box move s ${mask_clearance}um |
| box grow s ${res_to_endcont}um |
| if {$well_res_overlap > 0} { |
| set well_extend [+ ${well_res_overlap} [/ ${contact_size} 2.0] ${end_surround}] |
| box grow s ${well_extend}um |
| paint ${well_res_type} |
| } else { |
| paint ${end_type} |
| } |
| set cext [gf180mcu::unionbox $cext [gf180mcu::getbox]] |
| popbox |
| |
| # Draw the resistor and endcaps |
| pushbox |
| box grow n ${hl}um |
| box grow s ${hl}um |
| box grow e ${hw}um |
| box grow w ${hw}um |
| |
| # Capture these extents in the bounding box in case both contacts |
| # are on one side. |
| set cext [gf180mcu::unionbox $cext [gf180mcu::getbox]] |
| |
| set deltax [+ ${res_spacing} ${w}] |
| set deltay [- ${l} ${w}] |
| for {set i 0} {$i < [- $nf 1]} {incr i} { |
| paint ${res_type} |
| pushbox |
| if {[% $i 2] == 0} { |
| box move n ${deltay}um |
| } |
| box height ${w}um |
| box width ${deltax}um |
| paint ${res_type} |
| popbox |
| box move e ${deltax}um |
| } |
| paint ${res_type} |
| # Capture these extents in the bounding box |
| set cext [gf180mcu::unionbox $cext [gf180mcu::getbox]] |
| popbox |
| |
| # Move box to last finger |
| set lastf [* [- $nf 1] $deltax] |
| box move e ${lastf}um |
| |
| # Back-end contact (top or bottom, depending if odd or even turns) |
| pushbox |
| |
| if {[% $nf 2] == 1} { |
| set dir n |
| } else { |
| set dir s |
| } |
| box move $dir ${hl}um |
| pushbox |
| box move $dir ${mask_clearance}um |
| box move $dir ${res_to_endcont}um |
| |
| pushbox |
| box size 0 0 |
| box grow n ${hesz}um |
| box grow s ${hesz}um |
| box grow e ${hepl}um |
| box grow w ${hepl}um |
| paint ${end_type} |
| set cext [gf180mcu::unionbox $cext [gf180mcu::getbox]] |
| popbox |
| |
| if {${end_contact_type} != ""} { |
| set cext [gf180mcu::unionbox $cext [gf180mcu::draw_contact ${cpl} 0 \ |
| ${end_surround} ${metal_surround} ${contact_size} \ |
| ${end_type} ${end_contact_type} m1 horz]] |
| } |
| popbox |
| # Draw portion between resistor end and contact. |
| box grow e ${hw}um |
| box grow w ${hw}um |
| pushbox |
| box grow $dir ${mask_clearance}um |
| paint ${res_type} |
| popbox |
| box move $dir ${mask_clearance}um |
| box grow $dir ${res_to_endcont}um |
| |
| if {$well_res_overlap > 0} { |
| set well_extend [+ ${well_res_overlap} [/ ${contact_size} 2.0] ${end_surround}] |
| box grow $dir ${well_extend}um |
| paint ${well_res_type} |
| } else { |
| paint ${end_type} |
| } |
| popbox |
| |
| popbox |
| return $cext |
| } |
| |
| #---------------------------------------------------------------- |
| # Resistor: Draw the tiled device |
| #---------------------------------------------------------------- |
| |
| proc gf180mcu::res_draw {parameters} { |
| tech unlock * |
| |
| # Set defaults if they are not in parameters |
| set snake 0 ;# some resistors don't allow snake geometry |
| set roverlap 0 ;# overlap resistors at contacts |
| set guard 1 ;# draw a guard ring |
| set overlap_compress 0 ;# special Y distance compression |
| set well_res_overlap 0 ;# additional well extension behind contact |
| |
| # Set a local variable for each parameter (e.g., $l, $w, etc.) |
| foreach key [dict keys $parameters] { |
| set $key [dict get $parameters $key] |
| } |
| |
| # For devices where inter-device space is smaller than device-to-guard ring |
| if {![dict exists $parameters end_to_end_space]} { |
| set end_to_end_space $end_spacing |
| } |
| |
| # Normalize distance units to microns |
| set w [magic::spice2float $w] |
| set l [magic::spice2float $l] |
| |
| pushbox |
| box values 0 0 0 0 |
| |
| # Determine the base device dimensions by drawing one device |
| # while all layers are locked (nothing drawn). This allows the |
| # base drawing routine to do complicated geometry without having |
| # to duplicate it here with calculations. |
| |
| tech lock * |
| set nf $nx |
| if {($snake == 1) && ($nx == 1)} {set snake 0} |
| if {$snake == 1} { |
| set bbox [gf180mcu::res_snake_device $nf $parameters] |
| set nx 1 |
| } else { |
| set bbox [gf180mcu::res_device $parameters] |
| } |
| # puts stdout "Diagnostic: Device bounding box e $bbox (um)" |
| tech unlock * |
| |
| set fw [- [lindex $bbox 2] [lindex $bbox 0]] |
| set fh [- [lindex $bbox 3] [lindex $bbox 1]] |
| set lw [+ [lindex $bbox 2] [lindex $bbox 0]] |
| set lh [+ [lindex $bbox 3] [lindex $bbox 1]] |
| |
| # Determine tile width and height (depends on overlap) |
| # Snake resistors cannot overlap. |
| # However, snake resistors with an odd number of fingers can |
| # compress the space if overlap_compress is defined |
| |
| if {($roverlap == 1) && ($snake == 1) && ([% $nf 2] == 1) && ($m > 1)} { |
| set dy [- $fh $overlap_compress] |
| } elseif {($roverlap == 0) || ($snake == 1)} { |
| set dy [+ $fh $end_to_end_space] |
| } else { |
| # overlap poly |
| set dy [- $fh [+ [* [+ $end_surround $well_res_overlap] 2.0] $contact_size]] |
| } |
| set dx [+ $fw $res_spacing] |
| |
| # Determine core width and height |
| set corex [+ [* [- $nx 1] $dx] $fw] |
| set corey [+ [* [- $m 1] $dy] $fh] |
| set corellx [/ [+ [- $corex $fw] $lw] 2.0] |
| set corelly [/ [+ [- $corey $fh] $lh] 2.0] |
| |
| if {$guard != 0} { |
| # Calculate guard ring size (measured to contact center) |
| set gx [+ $corex [* 2.0 [+ $res_diff_spacing $diff_surround]] $contact_size] |
| set gy [+ $corey [* 2.0 [+ $end_spacing $diff_surround]] $contact_size] |
| |
| # Draw the guard ring first, because well resistors are on the substrate plane |
| gf180mcu::guard_ring $gx $gy $parameters |
| } |
| |
| pushbox |
| box move w ${corellx}um |
| box move s ${corelly}um |
| # puts "Device position at = [gf180mcu::getbox]" |
| for {set xp 0} {$xp < $nx} {incr xp} { |
| pushbox |
| for {set yp 0} {$yp < $m} {incr yp} { |
| if {$snake == 1} { |
| gf180mcu::res_snake_device $nf $parameters |
| } else { |
| gf180mcu::res_device $parameters |
| } |
| box move n ${dy}um |
| } |
| popbox |
| box move e ${dx}um |
| } |
| popbox |
| popbox |
| |
| tech revert |
| } |
| |
| #---------------------------------------------------------------- |
| |
| proc gf180mcu::ppolyf_u_draw {parameters} { |
| |
| # Set a local variable for each rule in ruleset |
| foreach key [dict keys $gf180mcu::ruleset] { |
| set $key [dict get $gf180mcu::ruleset $key] |
| } |
| |
| set newdict [dict create \ |
| res_type rpp \ |
| end_type poly \ |
| end_contact_type pc \ |
| plus_diff_type nsd \ |
| plus_contact_type nsc \ |
| sub_type nwell \ |
| end_surround $poly_surround \ |
| end_spacing 0.60 \ |
| end_to_end_space 0.52 \ |
| res_to_endcont $sblk_to_cont \ |
| res_spacing $polyres_spacing \ |
| res_diff_spacing 0.60 \ |
| mask_clearance 0.52 \ |
| overlap_compress 0.36 \ |
| ] |
| set drawdict [dict merge $gf180mcu::ruleset $newdict $parameters] |
| return [gf180mcu::res_draw $drawdict] |
| } |
| |
| #---------------------------------------------------------------- |
| |
| proc gf180mcu::npolyf_u_draw {parameters} { |
| |
| # Set a local variable for each rule in ruleset |
| foreach key [dict keys $gf180mcu::ruleset] { |
| set $key [dict get $gf180mcu::ruleset $key] |
| } |
| |
| set newdict [dict create \ |
| res_type rnp \ |
| end_type poly \ |
| end_contact_type pc \ |
| plus_diff_type psd \ |
| plus_contact_type psc \ |
| sub_type pwell \ |
| end_surround $poly_surround \ |
| end_spacing 0.60 \ |
| end_to_end_space 0.52 \ |
| res_to_endcont $sblk_to_cont \ |
| res_spacing $polyres_spacing \ |
| res_diff_spacing 0.60 \ |
| mask_clearance 0.52 \ |
| overlap_compress 0.36 \ |
| ] |
| set drawdict [dict merge $gf180mcu::ruleset $newdict $parameters] |
| return [gf180mcu::res_draw $drawdict] |
| } |
| |
| #---------------------------------------------------------------- |
| |
| proc gf180mcu::ppolyf_s_draw {parameters} { |
| |
| # Set a local variable for each rule in ruleset |
| foreach key [dict keys $gf180mcu::ruleset] { |
| set $key [dict get $gf180mcu::ruleset $key] |
| } |
| |
| # Distance from resistor to end contact is different between straight |
| # and snake geometry. |
| |
| set res_to_endcont [+ $poly_surround [/ $contact_size 2.0]] |
| if {[dict exists $parameters snake]} { |
| if {[dict get $parameters snake] == 1} { |
| set res_to_endcont [+ $res_to_endcont $poly_spacing] |
| } |
| } |
| |
| set newdict [dict create \ |
| res_type rpps \ |
| end_type poly \ |
| end_contact_type pc \ |
| plus_diff_type nsd \ |
| plus_contact_type nsc \ |
| sub_type nwell \ |
| end_surround $poly_surround \ |
| end_spacing 0.28 \ |
| end_to_end_space 0.41 \ |
| res_to_endcont $res_to_endcont \ |
| res_spacing $polyres_spacing \ |
| res_diff_spacing 0.41 \ |
| ] |
| set drawdict [dict merge $gf180mcu::ruleset $newdict $parameters] |
| return [gf180mcu::res_draw $drawdict] |
| } |
| |
| #---------------------------------------------------------------- |
| |
| proc gf180mcu::npolyf_s_draw {parameters} { |
| |
| # Set a local variable for each rule in ruleset |
| foreach key [dict keys $gf180mcu::ruleset] { |
| set $key [dict get $gf180mcu::ruleset $key] |
| } |
| |
| # Distance from resistor to end contact is different between straight |
| # and snake geometry. |
| |
| set res_to_endcont [+ $poly_surround [/ $contact_size 2.0]] |
| if {[dict exists $parameters snake]} { |
| if {[dict get $parameters snake] == 1} { |
| set res_to_endcont [+ $res_to_endcont $poly_spacing] |
| } |
| } |
| |
| set newdict [dict create \ |
| res_type rnps \ |
| end_type poly \ |
| end_contact_type pc \ |
| plus_diff_type nsd \ |
| plus_contact_type nsc \ |
| sub_type nwell \ |
| end_surround $poly_surround \ |
| end_spacing 0.28 \ |
| end_to_end_space 0.41 \ |
| res_to_endcont $res_to_endcont \ |
| res_spacing $polyres_spacing \ |
| res_diff_spacing 0.28 \ |
| ] |
| set drawdict [dict merge $gf180mcu::ruleset $newdict $parameters] |
| return [gf180mcu::res_draw $drawdict] |
| } |
| |
| #---------------------------------------------------------------- |
| |
| proc gf180mcu::nplus_u_draw {parameters} { |
| |
| # Set a local variable for each rule in ruleset |
| foreach key [dict keys $gf180mcu::ruleset] { |
| set $key [dict get $gf180mcu::ruleset $key] |
| } |
| |
| set newdict [dict create \ |
| res_type rnd \ |
| end_type ndiff \ |
| end_contact_type ndc \ |
| plus_diff_type psd \ |
| plus_contact_type psc \ |
| sub_type pwell \ |
| end_surround $diff_surround \ |
| end_spacing 0.45 \ |
| res_to_endcont 0.45 \ |
| res_spacing $diffres_spacing \ |
| res_diff_spacing 0.45 \ |
| mask_clearance 0.22 \ |
| overlap_compress 0.36 \ |
| ] |
| set drawdict [dict merge $gf180mcu::ruleset $newdict $parameters] |
| return [gf180mcu::res_draw $drawdict] |
| } |
| |
| #---------------------------------------------------------------- |
| |
| proc gf180mcu::pplus_u_draw {parameters} { |
| |
| # Set a local variable for each rule in ruleset |
| foreach key [dict keys $gf180mcu::ruleset] { |
| set $key [dict get $gf180mcu::ruleset $key] |
| } |
| |
| set newdict [dict create \ |
| res_type rpd \ |
| end_type pdiff \ |
| end_contact_type pdc \ |
| plus_diff_type nsd \ |
| plus_contact_type nsc \ |
| sub_type nwell \ |
| end_surround $diff_surround \ |
| end_spacing 0.45 \ |
| res_to_endcont 0.45 \ |
| res_spacing $diffres_spacing \ |
| res_diff_spacing 0.45 \ |
| mask_clearance 0.22 \ |
| overlap_compress 0.36 \ |
| ] |
| set drawdict [dict merge $gf180mcu::ruleset $newdict $parameters] |
| return [gf180mcu::res_draw $drawdict] |
| } |
| |
| #---------------------------------------------------------------- |
| |
| proc gf180mcu::nwell_draw {parameters} { |
| |
| # Set a local variable for each rule in ruleset |
| foreach key [dict keys $gf180mcu::ruleset] { |
| set $key [dict get $gf180mcu::ruleset $key] |
| } |
| |
| set newdict [dict create \ |
| well_res_type nwell \ |
| res_type rnw \ |
| end_type nsd \ |
| end_contact_type nsc \ |
| plus_diff_type psd \ |
| plus_contact_type psc \ |
| sub_type pwell \ |
| end_surround $diff_surround \ |
| end_spacing 1.4 \ |
| overlap_compress -0.84 \ |
| res_to_endcont 0.38 \ |
| res_spacing 1.4 \ |
| res_diff_spacing 0.28 \ |
| well_res_overlap 0.24 \ |
| ] |
| set drawdict [dict merge $gf180mcu::ruleset $newdict $parameters] |
| return [gf180mcu::res_draw $drawdict] |
| } |
| |
| #---------------------------------------------------------------- |
| |
| #ifdef HRPOLY1K |
| proc gf180mcu::ppolyf_u_1k_draw {parameters} { |
| # Set a local variable for each rule in ruleset |
| foreach key [dict keys $gf180mcu::ruleset] { |
| set $key [dict get $gf180mcu::ruleset $key] |
| } |
| |
| set newdict [dict create \ |
| res_type hires \ |
| end_type poly \ |
| end_contact_type pc \ |
| plus_diff_type psd \ |
| plus_contact_type psc \ |
| sub_type pwell \ |
| end_surround $poly_surround \ |
| end_spacing 0.7 \ |
| res_to_endcont 0.43 \ |
| res_spacing $polyres_spacing \ |
| res_diff_spacing 0.7 \ |
| mask_clearance 0.22 \ |
| overlap_compress 0.36 \ |
| ] |
| set drawdict [dict merge $gf180mcu::ruleset $newdict $parameters] |
| return [gf180mcu::res_draw $drawdict] |
| } |
| |
| proc gf180mcu::ppolyf_u_1k_6p0_draw {parameters} { |
| # Set a local variable for each rule in ruleset |
| foreach key [dict keys $gf180mcu::ruleset] { |
| set $key [dict get $gf180mcu::ruleset $key] |
| } |
| |
| set newdict [dict create \ |
| diff_poly_space 0.30 \ |
| diff_gate_space 0.30 \ |
| diff_spacing 0.36 \ |
| res_type mvhires \ |
| end_type poly \ |
| end_contact_type pc \ |
| plus_diff_type mvpsd \ |
| plus_contact_type mvpsc \ |
| sub_type pwell \ |
| sub_surround 0.16 \ |
| end_surround $poly_surround \ |
| end_spacing 0.7 \ |
| res_to_endcont 0.43 \ |
| res_spacing $polyres_spacing \ |
| res_diff_spacing 0.7 \ |
| mask_clearance 0.22 \ |
| overlap_compress 0.36 \ |
| ] |
| set drawdict [dict merge $gf180mcu::ruleset $newdict $parameters] |
| return [gf180mcu::res_draw $drawdict] |
| } |
| #endif (HRPOLY1K) |
| |
| #---------------------------------------------------------------- |
| |
| proc gf180mcu::rm1_draw {parameters} { |
| |
| # Set a local variable for each rule in ruleset |
| foreach key [dict keys $gf180mcu::ruleset] { |
| set $key [dict get $gf180mcu::ruleset $key] |
| } |
| |
| set newdict [dict create \ |
| guard 0 \ |
| res_type rm1 \ |
| end_type m1 \ |
| end_surround 0.0 \ |
| end_spacing 0.0 \ |
| res_to_endcont 0.2 \ |
| res_spacing $metal_spacing \ |
| ] |
| set drawdict [dict merge $gf180mcu::ruleset $newdict $parameters] |
| return [gf180mcu::res_draw $drawdict] |
| } |
| |
| #---------------------------------------------------------------- |
| |
| proc gf180mcu::rm2_draw {parameters} { |
| |
| # Set a local variable for each rule in ruleset |
| foreach key [dict keys $gf180mcu::ruleset] { |
| set $key [dict get $gf180mcu::ruleset $key] |
| } |
| |
| set newdict [dict create \ |
| guard 0 \ |
| res_type rm2 \ |
| end_type m2 \ |
| end_surround 0.0 \ |
| end_spacing 0.0 \ |
| res_to_endcont 0.2 \ |
| res_spacing $mmetal_spacing \ |
| ] |
| set drawdict [dict merge $gf180mcu::ruleset $newdict $parameters] |
| return [gf180mcu::res_draw $drawdict] |
| } |
| |
| #---------------------------------------------------------------- |
| |
| #ifdef METALS3 || METALS4 || METALS5 || METALS6 |
| proc gf180mcu::rm3_draw {parameters} { |
| |
| # Set a local variable for each rule in ruleset |
| foreach key [dict keys $gf180mcu::ruleset] { |
| set $key [dict get $gf180mcu::ruleset $key] |
| } |
| |
| set newdict [dict create \ |
| guard 0 \ |
| res_type rm3 \ |
| end_type m3 \ |
| end_surround 0.0 \ |
| end_spacing 0.0 \ |
| res_to_endcont 0.2 \ |
| res_spacing $mmetal_spacing \ |
| ] |
| set drawdict [dict merge $gf180mcu::ruleset $newdict $parameters] |
| return [gf180mcu::res_draw $drawdict] |
| } |
| |
| #---------------------------------------------------------------- |
| #endif (METALS3 || METALS4 || METALS5 || METALS6) |
| |
| #ifdef METALS4 || METALS5 || METALS6 |
| proc gf180mcu::rm4_draw {parameters} { |
| |
| # Set a local variable for each rule in ruleset |
| foreach key [dict keys $gf180mcu::ruleset] { |
| set $key [dict get $gf180mcu::ruleset $key] |
| } |
| |
| set newdict [dict create \ |
| guard 0 \ |
| res_type rm4 \ |
| end_type m4 \ |
| end_surround 0.0 \ |
| end_spacing 0.0 \ |
| res_to_endcont 0.2 \ |
| res_spacing $mmetal_spacing \ |
| ] |
| set drawdict [dict merge $gf180mcu::ruleset $newdict $parameters] |
| return [gf180mcu::res_draw $drawdict] |
| } |
| #endif (METALS4 || METALS5 || METALS6) |
| |
| #ifdef METALS5 || METALS6 |
| proc gf180mcu::rm5_draw {parameters} { |
| # Set a local variable for each rule in ruleset |
| foreach key [dict keys $gf180mcu::ruleset] { |
| set $key [dict get $gf180mcu::ruleset $key] |
| } |
| |
| set newdict [dict create \ |
| guard 0 \ |
| res_type rm5 \ |
| end_type m5 \ |
| end_surround 0.0 \ |
| end_spacing 0.0 \ |
| res_to_endcont 0.265 \ |
| res_spacing $mmetal_spacing \ |
| ] |
| set drawdict [dict merge $gf180mcu::ruleset $newdict $parameters] |
| return [gf180mcu::res_draw $drawdict] |
| } |
| #endif (METALS5 || METALS6) |
| #ifdef METALS6 |
| proc gf180mcu::rmtp_draw {parameters} { |
| # Set a local variable for each rule in ruleset |
| foreach key [dict keys $gf180mcu::ruleset] { |
| set $key [dict get $gf180mcu::ruleset $key] |
| } |
| |
| set newdict [dict create \ |
| guard 0 \ |
| res_type rmtp \ |
| end_type mtp \ |
| end_surround 0.0 \ |
| end_spacing 0.0 \ |
| res_to_endcont 0.2 \ |
| res_spacing $mmetal_spacing \ |
| ] |
| set drawdict [dict merge $gf180mcu::ruleset $newdict $parameters] |
| return [gf180mcu::res_draw $drawdict] |
| } |
| #endif (METALS6) |
| |
| #---------------------------------------------------------------- |
| # Resistor total length computation |
| #---------------------------------------------------------------- |
| |
| proc gf180mcu::compute_ltot {parameters} { |
| # In case snake not defined |
| set snake 0 |
| set caplen 0 |
| |
| foreach key [dict keys $parameters] { |
| set $key [dict get $parameters $key] |
| } |
| |
| set l [magic::spice2float $l] |
| set l [magic::3digitpastdecimal $l] |
| |
| # Compute total length. Use catch to prevent error in batch/scripted mode. |
| if {$snake == 1} { |
| catch {set magic::ltot_val [expr ($caplen * ($nx - 1)) + ($l * $nx) + ($nx - 1)]} |
| } else { |
| catch {set magic::ltot_val $l} |
| } |
| } |
| |
| #---------------------------------------------------------------- |
| # resistor: Check device parameters for out-of-bounds values |
| #---------------------------------------------------------------- |
| |
| proc gf180mcu::res_check {device parameters} { |
| |
| # Set a local variable for each parameter (e.g., $l, $w, etc.) |
| set snake 0 |
| set sterm 0.0 |
| set caplen 0 |
| foreach key [dict keys $parameters] { |
| set $key [dict get $parameters $key] |
| } |
| |
| # Normalize distance units to microns |
| set w [magic::spice2float $w] |
| set w [magic::3digitpastdecimal $w] |
| set l [magic::spice2float $l] |
| set l [magic::3digitpastdecimal $l] |
| |
| set val [magic::spice2float $val] |
| set rho [magic::spice2float $rho] |
| |
| # nf, m must be integer |
| if {![string is int $nx]} { |
| puts stderr "X repeat must be an integer!" |
| dict set parameters nx 1 |
| } |
| if {![string is int $m]} { |
| puts stderr "Y repeat must be an integer!" |
| dict set parameters m 1 |
| } |
| |
| # Width always needs to be specified |
| if {$w < $wmin} { |
| puts stderr "Resistor width must be >= $wmin um" |
| dict set parameters w $wmin |
| } |
| # Val and W specified - no L |
| if {$l == 0} { |
| set l [expr ($w - $dw) * $val / $rho] |
| set l [magic::3digitpastdecimal $l] |
| set stringval [magic::float2spice $val] |
| dict set parameters l [magic::float2spice [expr $l * 1e-6]] |
| # L and W specified - ignore Val if specified |
| } else { |
| if {$snake == 0} { |
| set val [expr (2 * $term + $l * $rho) / ($w - $dw)] |
| } else { |
| set val [expr $rho * ($nx - 1) + ((2 * ($term + $sterm)) \ |
| + ($rho * $l * $nx) + ($rho * $caplen * ($nx - 1))) \ |
| / ($w - $dw)] |
| } |
| set val [magic::float2spice $val] |
| dict set parameters val $val |
| } |
| if {$l < $lmin} { |
| puts stderr "Resistor length must be >= $lmin um" |
| dict set parameters l $lmin |
| } |
| if {$nx < 1} { |
| puts stderr "X repeat must be >= 1" |
| dict set parameters nx 1 |
| } |
| if {$m < 1} { |
| puts stderr "Y repeat must be >= 1" |
| dict set parameters m 1 |
| } |
| |
| # Snake resistors cannot have width greater than length |
| if {$snake == 1} { |
| if {$w > $l} { |
| puts stderr "Snake resistor width must be < length" |
| dict set parameters w $l |
| } |
| } |
| |
| # Diffusion resistors must satisfy diffusion-to-tap spacing of 20um. |
| # Therefore the maximum of guard ring width or height cannot exceed 40um. |
| # If in violation, reduce counts first, as these are easiest to recover |
| # by duplicating the device and overlapping the wells. |
| if {$device == "rdn" || $device == "rdp"} { |
| set origm $m |
| set orignx $nx |
| while true { |
| set xext [expr ($w + 0.8) * $nx + 1.0] |
| set yext [expr ($l + 1.7) * $m + 1.7] |
| if {[expr min($xext, $yext)] > 40.0} { |
| if {$yext > 40.0 && $m > 1} { |
| incr m -1 |
| } elseif {$xext > 40.0 && $nx > 1} { |
| incr nx -1 |
| } elseif {$yext > 40.0} { |
| set l 36.6 |
| puts -nonewline stderr "Diffusion resistor length must be < 36.6 um" |
| puts stderr " to avoid tap spacing violation." |
| dict set parameters l $l |
| } elseif {$xext > 40.0} { |
| set w 38.2 |
| puts -nonewline stderr "Diffusion resistor width must be < 38.2 um" |
| puts stderr " to avoid tap spacing violation." |
| dict set parameters w $w |
| } |
| } else { |
| break |
| } |
| } |
| if {$m != $origm} { |
| puts stderr "Y repeat reduced to prevent tap distance violation" |
| dict set parameters m $m |
| } |
| if {$nx != $orignx} { |
| puts stderr "X repeat reduced to prevent tap distance violation" |
| dict set parameters nx $nx |
| } |
| } |
| gf180mcu::compute_ltot $parameters |
| return $parameters |
| } |
| |
| #---------------------------------------------------------------- |
| |
| proc gf180mcu::nwell_check {parameters} { |
| return [gf180mcu::res_check nwell $parameters] |
| } |
| |
| proc gf180mcu::ppolyf_u_check {parameters} { |
| return [gf180mcu::res_check ppolyf_u $parameters] |
| } |
| |
| proc gf180mcu::npolyf_u_check {parameters} { |
| return [gf180mcu::res_check npolyf_u $parameters] |
| } |
| |
| proc gf180mcu::ppolyf_s_check {parameters} { |
| return [gf180mcu::res_check rpp1s $parameters] |
| } |
| |
| proc gf180mcu::npolyf_s_check {parameters} { |
| return [gf180mcu::res_check rpp1s $parameters] |
| } |
| |
| proc gf180mcu::nplus_u_check {parameters} { |
| return [gf180mcu::res_check nplus_u $parameters] |
| } |
| |
| proc gf180mcu::pplus_u_check {parameters} { |
| return [gf180mcu::res_check pplus_u $parameters] |
| } |
| |
| proc gf180mcu::rm1_check {parameters} { |
| return [gf180mcu::res_check rm1 $parameters] |
| } |
| |
| proc gf180mcu::rm2_check {parameters} { |
| return [gf180mcu::res_check rm2 $parameters] |
| } |
| |
| #ifdef METALS3 || METALS4 || METALS5 || METALS6 |
| proc gf180mcu::rm3_check {parameters} { |
| return [gf180mcu::res_check rm3 $parameters] |
| } |
| #endif (METALS3 || METALS4 || METALS5 || METALS6) |
| |
| #ifdef METALS4 || METALS5 || METALS6 |
| proc gf180mcu::rm4_check {parameters} { |
| return [gf180mcu::res_check rm4 $parameters] |
| } |
| #endif (METALS4 || METALS5 || METALS6) |
| |
| #ifdef METALS5 || METALS6 |
| proc gf180mcu::rm5_check {parameters} { |
| return [gf180mcu::res_check rm5 $parameters] |
| } |
| #endif (METALS5 || METALS6) |
| #ifdef METALS6 |
| proc gf180mcu::rmtp_check {parameters} { |
| return [gf180mcu::res_check rmtp $parameters] |
| } |
| #endif (METALS6) |
| |
| #ifdef HRPOLY1K |
| proc gf180mcu::ppolyf_u_1k_check {parameters} { |
| return [gf180mcu::res_check ppolyf_u_1k $parameters] |
| } |
| |
| proc gf180mcu::ppolyf_u_1k_6p0_check {parameters} { |
| return [gf180mcu::res_check ppolyf_u_1k_6p0 $parameters] |
| } |
| #endif (HRPOLY1K) |
| |
| #---------------------------------------------------------------- |
| # MOS defaults: |
| #---------------------------------------------------------------- |
| # w = Gate width |
| # l = Gate length |
| # m = Multiplier |
| # nf = Number of fingers |
| # diffcov = Diffusion contact coverage |
| # polycov = Poly contact coverage |
| # topc = Top gate contact |
| # botc = Bottom gate contact |
| # guard = Guard ring |
| # |
| # (not user-editable) |
| # |
| # lmin = Gate minimum length |
| # wmin = Gate minimum width |
| #---------------------------------------------------------------- |
| |
| #---------------------------------------------------------------- |
| # pmos: Specify all user-editable default values and those |
| # needed by pmos_check |
| #---------------------------------------------------------------- |
| |
| proc gf180mcu::pfet_03v3_defaults {} { |
| return {w 0.220 l 0.280 m 1 nf 1 diffcov 100 polycov 100 \ |
| guard 1 glc 1 grc 1 gtc 0 gbc 0 tbcov 100 rlcov 100 \ |
| topc 1 botc 1 poverlap 0 doverlap 1 lmin 0.28 wmin 0.22 \ |
| full_metal 1 \ |
| compatible {pfet_03v3 pfet_06v0}} |
| } |
| |
| proc gf180mcu::pfet_06v0_defaults {} { |
| return {w 0.3 l 0.5 m 1 nf 1 diffcov 100 polycov 100 \ |
| guard 1 glc 1 grc 1 gtc 0 gbc 0 tbcov 100 rlcov 100 \ |
| topc 1 botc 1 poverlap 0 doverlap 1 lmin 0.5 wmin 0.3 \ |
| full_metal 1 \ |
| compatible {pfet_03v3 pfet_06v0}} |
| } |
| |
| proc gf180mcu::pfet_03v3_dss_defaults {} { |
| return {w 0.220 l 0.280 m 1 nf 1 diffcov 100 polycov 100 \ |
| guard 1 glc 1 grc 1 gtc 0 gbc 0 tbcov 100 rlcov 100 \ |
| topc 1 botc 1 poverlap 0 doverlap 1 lmin 0.28 wmin 0.22 \ |
| full_metal 1 \ |
| compatible {pfet_03v3_dss pfet_06v0_dss}} |
| } |
| |
| proc gf180mcu::pfet_06v0_dss_defaults {} { |
| return {w 0.3 l 0.5 m 1 nf 1 diffcov 100 polycov 100 \ |
| guard 1 glc 1 grc 1 gtc 0 gbc 0 tbcov 100 rlcov 100 \ |
| topc 1 botc 1 poverlap 0 doverlap 1 lmin 0.5 wmin 0.3 \ |
| full_metal 1 \ |
| compatible {pfet_03v3_dss pfet_06v0_dss}} |
| } |
| #---------------------------------------------------------------- |
| # nmos: Specify all user-editable default values and those |
| # needed by nmos_check |
| #---------------------------------------------------------------- |
| |
| proc gf180mcu::nfet_03v3_defaults {} { |
| return {w 0.220 l 0.280 m 1 nf 1 diffcov 100 polycov 100 \ |
| guard 1 glc 1 grc 1 gtc 0 gbc 0 tbcov 100 rlcov 100 \ |
| topc 1 botc 1 poverlap 0 doverlap 1 lmin 0.28 wmin 0.22 \ |
| full_metal 1 \ |
| compatible {nfet_03v3 nfet_06v0 nfet_06v0_nvt}} |
| } |
| |
| proc gf180mcu::nfet_06v0_defaults {} { |
| return {w 0.3 l 0.6 m 1 nf 1 diffcov 100 polycov 100 \ |
| guard 1 glc 1 grc 1 gtc 0 gbc 0 tbcov 100 rlcov 100 \ |
| topc 1 botc 1 poverlap 0 doverlap 1 lmin 0.6 wmin 0.3 \ |
| full_metal 1 \ |
| compatible {nfet_03v3 nfet_06v0 nfet_06v0_nvt}} |
| } |
| |
| proc gf180mcu::nfet_06v0_nvt_defaults {} { |
| return {w 0.8 l 1.8 m 1 nf 1 diffcov 100 polycov 100 \ |
| guard 1 glc 1 grc 1 gtc 0 gbc 0 tbcov 100 rlcov 100 \ |
| topc 1 botc 1 poverlap 0 doverlap 1 lmin 1.8 wmin 0.8 \ |
| full_metal 1 \ |
| compatible {nfet_03v3 nfet_06v0 nfet_06v0_nvt}} |
| } |
| |
| proc gf180mcu::nfet_10v0_asym_defaults {} { |
| return {w 4.0 l 0.6 m 1 nf 1 diffcov 100 polycov 100 \ |
| guard 1 glc 1 grc 1 gtc 0 gbc 0 tbcov 100 rlcov 100 \ |
| topc 1 botc 1 poverlap 0 doverlap 1 lmin 0.6 wmin 4.0 \ |
| full_metal 1 } |
| } |
| |
| proc gf180mcu::pfet_10v0_asym_defaults {} { |
| return {w 4.0 l 0.6 m 1 nf 1 diffcov 100 polycov 100 \ |
| guard 1 glc 1 grc 1 gtc 0 gbc 0 tbcov 100 rlcov 100 \ |
| topc 1 botc 1 poverlap 0 doverlap 1 lmin 0.6 wmin 4.0 \ |
| full_metal 1 } |
| } |
| |
| proc gf180mcu::nfet_03v3_dss_defaults {} { |
| return {w 0.220 l 0.280 m 1 nf 1 diffcov 100 polycov 100 \ |
| guard 1 glc 1 grc 1 gtc 0 gbc 0 tbcov 100 rlcov 100 \ |
| topc 1 botc 1 poverlap 0 doverlap 1 lmin 0.28 wmin 0.22 \ |
| full_metal 1 \ |
| compatible {nfet_03v3_dss nfet_06v0_dss}} |
| } |
| |
| proc gf180mcu::nfet_06v0_dss_defaults {} { |
| return {w 0.3 l 0.6 m 1 nf 1 diffcov 100 polycov 100 \ |
| guard 1 glc 1 grc 1 gtc 0 gbc 0 tbcov 100 rlcov 100 \ |
| topc 1 botc 1 poverlap 0 doverlap 1 lmin 0.6 wmin 0.3 \ |
| full_metal 1 \ |
| compatible {nfet_03v3_dss nfet_06v0_dss}} |
| } |
| |
| #---------------------------------------------------------------- |
| # mosvc: Specify all user-editable default values and those |
| # needed by nmoscap_3p3_check |
| #---------------------------------------------------------------- |
| |
| proc gf180mcu::nmoscap_3p3_defaults {} { |
| return {w 1.0 l 1.0 m 1 nf 1 diffcov 100 polycov 100 \ |
| guard 1 glc 1 grc 1 gtc 0 gbc 0 tbcov 100 rlcov 100 \ |
| topc 1 botc 1 poverlap 0 doverlap 1 lmin 0.28 wmin 0.22 \ |
| full_metal 1 compatible {nmoscap_3p3 nmoscap_6p0}} |
| } |
| |
| proc gf180mcu::nmoscap_6p0_defaults {} { |
| return {w 1.0 l 1.0 m 1 nf 1 diffcov 100 polycov 100 \ |
| guard 1 glc 1 grc 1 gtc 0 gbc 0 tbcov 100 rlcov 100 \ |
| topc 1 botc 1 poverlap 0 doverlap 1 lmin 0.28 wmin 0.3 \ |
| full_metal 1 compatible {nmoscap_3p3 nmoscap_6p0}} |
| } |
| |
| #---------------------------------------------------------------- |
| # mos: Conversion from SPICE netlist parameters to toolkit |
| #---------------------------------------------------------------- |
| |
| proc gf180mcu::mos_convert {parameters} { |
| set pdkparams [dict create] |
| dict for {key value} $parameters { |
| switch -nocase $key { |
| l - |
| w { |
| # Length and width are converted to units of microns |
| set value [magic::spice2float $value] |
| set value [expr $value * 1e6] |
| set value [magic::3digitpastdecimal $value] |
| dict set pdkparams [string tolower $key] $value |
| } |
| m { |
| # M value in an expression like '1*1' convert to |
| # M and NF |
| if {[regexp {\'([0-9]+)\*([0-9]+)\'} $value valid m nf]} { |
| dict set pdkparams [string tolower $key] $m |
| dict set pdkparams nf $nf |
| } else { |
| dict set pdkparams [string tolower $key] $value |
| } |
| } |
| } |
| } |
| return $pdkparams |
| } |
| |
| #---------------------------------------------------------------- |
| |
| proc gf180mcu::nfet_03v3_convert {parameters} { |
| return [gf180mcu::mos_convert $parameters] |
| } |
| |
| proc gf180mcu::nfet_06v0_convert {parameters} { |
| return [gf180mcu::mos_convert $parameters] |
| } |
| |
| proc gf180mcu::nfet_06v0_nvt_convert {parameters} { |
| return [gf180mcu::mos_convert $parameters] |
| } |
| |
| proc gf180mcu::pfet_03v3_convert {parameters} { |
| return [gf180mcu::mos_convert $parameters] |
| } |
| |
| proc gf180mcu::pfet_06v0_convert {parameters} { |
| return [gf180mcu::mos_convert $parameters] |
| } |
| |
| proc gf180mcu::nmoscap_3p3_convert {parameters} { |
| return [gf180mcu::mos_convert $parameters] |
| } |
| |
| proc gf180mcu::nmoscap_6p0_convert {parameters} { |
| return [gf180mcu::mos_convert $parameters] |
| } |
| |
| proc gf180mcu::nfet_10v0_asym_convert {parameters} { |
| return [gf180mcu::mos_convert $parameters] |
| } |
| |
| proc gf180mcu::pfet_10v0_asym_convert {parameters} { |
| return [gf180mcu::mos_convert $parameters] |
| } |
| |
| proc gf180mcu::nfet_03v3_dss_convert {parameters} { |
| return [gf180mcu::mos_convert $parameters] |
| } |
| |
| proc gf180mcu::pfet_03v3_dss_convert {parameters} { |
| return [gf180mcu::mos_convert $parameters] |
| } |
| |
| proc gf180mcu::nfet_06v0_dss_convert {parameters} { |
| return [gf180mcu::mos_convert $parameters] |
| } |
| |
| proc gf180mcu::pfet_06v0_dss_convert {parameters} { |
| return [gf180mcu::mos_convert $parameters] |
| } |
| |
| #---------------------------------------------------------------- |
| # mos: Interactively specifies the fixed layout parameters |
| #---------------------------------------------------------------- |
| |
| proc gf180mcu::mos_dialog {device parameters} { |
| # Editable fields: w, l, nf, m, diffcov, polycov |
| # Checked fields: topc, botc |
| |
| magic::add_entry w "Width (um)" $parameters |
| magic::add_entry l "Length (um)" $parameters |
| magic::add_entry nf "Fingers" $parameters |
| magic::add_entry m "M" $parameters |
| |
| if {[dict exists $parameters compatible]} { |
| set sellist [dict get $parameters compatible] |
| # Reserved word "gencell" has special behavior to change the |
| # underlying device type |
| dict set parameters gencell $device |
| magic::add_selectlist gencell "Device type" $sellist $parameters |
| } |
| |
| magic::add_entry diffcov "Diffusion contact coverage (%)" $parameters |
| magic::add_entry polycov "Poly contact coverage (%)" $parameters |
| magic::add_entry rlcov "Guard ring contact coverage (%)" $parameters |
| if {[dict exists $parameters gbc]} { |
| magic::add_entry tbcov "Guard ring top/bottom contact coverage (%)" $parameters |
| } |
| |
| magic::add_checkbox poverlap "Overlap at poly contact" $parameters |
| magic::add_checkbox doverlap "Overlap at diffusion contact" $parameters |
| magic::add_checkbox topc "Add top gate contact" $parameters |
| magic::add_checkbox botc "Add bottom gate contact" $parameters |
| |
| magic::add_checkbox guard "Add guard ring" $parameters |
| magic::add_checkbox full_metal "Full metal guard ring" $parameters |
| magic::add_checkbox glc "Add left guard ring contact" $parameters |
| magic::add_checkbox grc "Add right guard ring contact" $parameters |
| if {[dict exists $parameters gbc]} { |
| magic::add_checkbox gbc "Add bottom guard ring contact" $parameters |
| } |
| if {[dict exists $parameters gtc]} { |
| magic::add_checkbox gtc "Add top guard ring contact" $parameters |
| } |
| } |
| |
| #---------------------------------------------------------------- |
| |
| proc gf180mcu::nfet_03v3_dialog {parameters} { |
| gf180mcu::mos_dialog nfet_03v3 $parameters |
| } |
| |
| proc gf180mcu::nfet_06v0_dialog {parameters} { |
| gf180mcu::mos_dialog nfet_06v0 $parameters |
| } |
| |
| proc gf180mcu::nfet_06v0_nvt_dialog {parameters} { |
| gf180mcu::mos_dialog nfet_06v0_nvt $parameters |
| } |
| |
| proc gf180mcu::pfet_03v3_dialog {parameters} { |
| gf180mcu::mos_dialog pfet_03v3 $parameters |
| } |
| |
| proc gf180mcu::pfet_06v0_dialog {parameters} { |
| gf180mcu::mos_dialog pfet_06v0 $parameters |
| } |
| |
| proc gf180mcu::nmoscap_3p3_dialog {parameters} { |
| gf180mcu::mos_dialog nmoscap_3p3 $parameters |
| } |
| |
| proc gf180mcu::nmoscap_6p0_dialog {parameters} { |
| gf180mcu::mos_dialog nmoscap_6p0 $parameters |
| } |
| |
| proc gf180mcu::nfet_10v0_asym_dialog {parameters} { |
| gf180mcu::mos_dialog nfet_10v0_asym $parameters |
| } |
| |
| proc gf180mcu::pfet_10v0_asym_dialog {parameters} { |
| gf180mcu::mos_dialog pfet_10v0_asym $parameters |
| } |
| |
| proc gf180mcu::nfet_03v3_dss_dialog {parameters} { |
| gf180mcu::mos_dialog nfet_03v3_dss $parameters |
| } |
| |
| proc gf180mcu::nfet_06v0_dss_dialog {parameters} { |
| gf180mcu::mos_dialog nfet_06v0_dss $parameters |
| } |
| |
| proc gf180mcu::pfet_03v3_dss_dialog {parameters} { |
| gf180mcu::mos_dialog pfet_03v3_dss $parameters |
| } |
| |
| proc gf180mcu::pfet_06v0_dss_dialog {parameters} { |
| gf180mcu::mos_dialog pfet_06v0_dss $parameters |
| } |
| #---------------------------------------------------------------- |
| # getbox: Get the current cursor box, in microns |
| #---------------------------------------------------------------- |
| |
| proc gf180mcu::getbox {} { |
| set curbox [box values] |
| set newbox [] |
| set oscale [cif scale out] |
| for {set i 0} {$i < 4} {incr i} { |
| set v [* [lindex $curbox $i] $oscale] |
| lappend newbox $v |
| } |
| return $newbox |
| } |
| |
| #---------------------------------------------------------------- |
| # unionbox: Get the union bounding box of box1 and box2 |
| #---------------------------------------------------------------- |
| |
| proc gf180mcu::unionbox {box1 box2} { |
| set newbox [] |
| for {set i 0} {$i < 2} {incr i} { |
| set v [lindex $box1 $i] |
| set o [lindex $box2 $i] |
| if {$v < $o} { |
| lappend newbox $v |
| } else { |
| lappend newbox $o |
| } |
| } |
| for {set i 2} {$i < 4} {incr i} { |
| set v [lindex $box1 $i] |
| set o [lindex $box2 $i] |
| if {$v > $o} { |
| lappend newbox $v |
| } else { |
| lappend newbox $o |
| } |
| } |
| return $newbox |
| } |
| |
| #---------------------------------------------------------------- |
| # Draw a contact |
| #---------------------------------------------------------------- |
| |
| proc gf180mcu::draw_contact {w h s o x atype ctype mtype {orient vert}} { |
| |
| # Draw a minimum-size diff contact centered at current position |
| # w is width, h is height. Minimum size ensured. |
| # x is contact size |
| # s is contact diffusion (or poly) surround |
| # o is contact metal surround |
| # atype is active (e.g., ndiff) or bottom metal if a via |
| # ctype is contact (e.g., ndc) |
| # mtype is metal (e.g., m1) or top metal if a via |
| # cover is percent maximum coverage of contact |
| |
| pushbox |
| box size 0 0 |
| if {$w < $x} {set w $x} |
| if {$h < $x} {set h $x} |
| set hw [/ $w 2.0] |
| set hh [/ $h 2.0] |
| # Bottom layer surrounded on all sides |
| box grow e ${hw}um |
| box grow w ${hw}um |
| box grow n ${hh}um |
| box grow s ${hh}um |
| pushbox |
| paint ${ctype} |
| popbox |
| pushbox |
| box grow c ${s}um |
| paint ${atype} |
| set extents [gf180mcu::getbox] |
| popbox |
| if {($orient == "vert") || ($orient == "full")} { |
| box grow n ${o}um |
| box grow s ${o}um |
| } |
| if {($orient == "horz") || ($orient == "full")} { |
| box grow e ${o}um |
| box grow w ${o}um |
| } |
| paint ${mtype} |
| popbox |
| return $extents |
| } |
| |
| #---------------------------------------------------------------- |
| # Draw a guard ring |
| #---------------------------------------------------------------- |
| |
| proc gf180mcu::guard_ring {gw gh parameters} { |
| |
| # Set local default values if they are not in parameters |
| set rlcov 100 ;# Right-left contact coverage percentage |
| set tbcov 100 ;# Top-bottom contact coverage percentage |
| set grc 1 ;# Draw right side contact |
| set glc 1 ;# Draw left side contact |
| set gtc 0 ;# Draw right side contact |
| set gbc 0 ;# Draw left side contact |
| set full_metal 0 ;# Draw full (continuous) metal ring |
| |
| # Set a local variable for each parameter (e.g., $l, $w, etc.) |
| foreach key [dict keys $parameters] { |
| set $key [dict get $parameters $key] |
| } |
| |
| set hx [/ $contact_size 2.0] |
| set hw [/ $gw 2.0] |
| set hh [/ $gh 2.0] |
| |
| # Compute diffusion width |
| set difft [+ $contact_size $diff_surround $diff_surround] |
| set hdifft [/ $difft 2.0] |
| # Compute guard ring diffusion width and height |
| set hdiffw [/ [+ $gw $difft] 2.0] |
| set hdiffh [/ [+ $gh $difft] 2.0] |
| |
| pushbox |
| box size 0 0 |
| |
| pushbox |
| box move n ${hh}um |
| box grow n ${hdifft}um |
| box grow s ${hdifft}um |
| box grow e ${hdiffw}um |
| box grow w ${hdiffw}um |
| paint $plus_diff_type |
| popbox |
| pushbox |
| box move s ${hh}um |
| box grow n ${hdifft}um |
| box grow s ${hdifft}um |
| box grow e ${hdiffw}um |
| box grow w ${hdiffw}um |
| paint $plus_diff_type |
| popbox |
| pushbox |
| box move e ${hw}um |
| box grow e ${hdifft}um |
| box grow w ${hdifft}um |
| box grow n ${hdiffh}um |
| box grow s ${hdiffh}um |
| paint $plus_diff_type |
| popbox |
| pushbox |
| box move w ${hw}um |
| box grow e ${hdifft}um |
| box grow w ${hdifft}um |
| box grow n ${hdiffh}um |
| box grow s ${hdiffh}um |
| paint $plus_diff_type |
| popbox |
| |
| if {$full_metal} { |
| set hmetw [/ [+ $gw $contact_size] 2.0] |
| set hmeth [/ [+ $gh $contact_size] 2.0] |
| pushbox |
| box move n ${hh}um |
| box grow n ${hx}um |
| box grow s ${hx}um |
| box grow e ${hmetw}um |
| box grow w ${hmetw}um |
| paint m1 |
| popbox |
| pushbox |
| box move s ${hh}um |
| box grow n ${hx}um |
| box grow s ${hx}um |
| box grow e ${hmetw}um |
| box grow w ${hmetw}um |
| paint m1 |
| popbox |
| pushbox |
| box move e ${hw}um |
| box grow e ${hx}um |
| box grow w ${hx}um |
| box grow n ${hmeth}um |
| box grow s ${hmeth}um |
| paint m1 |
| popbox |
| pushbox |
| box move w ${hw}um |
| box grow e ${hx}um |
| box grow w ${hx}um |
| box grow n ${hmeth}um |
| box grow s ${hmeth}um |
| paint m1 |
| popbox |
| } |
| |
| # Set guard ring height so that contact metal reaches to end, scale by $per |
| # set ch [* [+ $gh $contact_size [* $metal_surround -2.0]] [/ $rlcov 100.0]] |
| set ch [* [- $gh $contact_size [* [+ $metal_surround $metal_spacing] \ |
| 2.0]] [/ $rlcov 100.0]] |
| if {$ch < $contact_size} {set ch $contact_size} |
| |
| # Set guard ring width so that contact metal reaches to side contacts |
| set cw [* [- $gw $contact_size [* [+ $metal_surround $metal_spacing] \ |
| 2.0]] [/ $tbcov 100.0]] |
| if {$cw < $contact_size} {set cw $contact_size} |
| |
| if {$tbcov > 0.0} { |
| if {$gtc == 1} { |
| pushbox |
| box move n ${hh}um |
| gf180mcu::draw_contact $cw 0 $diff_surround $metal_surround \ |
| $contact_size $plus_diff_type $plus_contact_type m1 horz |
| popbox |
| } |
| if {$gbc == 1} { |
| pushbox |
| box move s ${hh}um |
| gf180mcu::draw_contact $cw 0 $diff_surround $metal_surround \ |
| $contact_size $plus_diff_type $plus_contact_type m1 horz |
| popbox |
| } |
| } |
| if {$rlcov > 0.0} { |
| if {$grc == 1} { |
| pushbox |
| box move e ${hw}um |
| gf180mcu::draw_contact 0 $ch $diff_surround $metal_surround \ |
| $contact_size $plus_diff_type $plus_contact_type m1 vert |
| popbox |
| } |
| if {$glc == 1} { |
| pushbox |
| box move w ${hw}um |
| gf180mcu::draw_contact 0 $ch $diff_surround $metal_surround \ |
| $contact_size $plus_diff_type $plus_contact_type m1 vert |
| popbox |
| } |
| } |
| |
| pushbox |
| box grow e ${hw}um |
| box grow w ${hw}um |
| box grow n ${hh}um |
| box grow s ${hh}um |
| property FIXED_BBOX [box values] |
| box grow c ${hx}um ;# to edge of contact |
| box grow c ${diff_surround}um ;# to edge of diffusion |
| box grow c ${sub_surround}um ;# sub/well overlap of diff |
| paint $sub_type |
| set cext [gf180mcu::getbox] |
| popbox |
| popbox |
| |
| return $cext |
| } |
| |
| #---------------------------------------------------------------- |
| # MOSFET: Draw a single device |
| #---------------------------------------------------------------- |
| |
| proc gf180mcu::mos_device {parameters} { |
| |
| # Epsilon for avoiding round-off errors |
| set eps 0.0005 |
| |
| # Set local default values if they are not in parameters |
| set diffcov 100 ;# percent coverage of diffusion contact |
| set polycov 100 ;# percent coverage of poly contact |
| set topc 1 ;# draw top poly contact |
| set botc 1 ;# draw bottom poly contact |
| set dev_sub_type "" ;# device substrate type (if different from guard ring) |
| set evens 1 ;# even or odd (evens = 1 means drain is on left) |
| |
| # Set a local variable for each parameter (e.g., $l, $w, etc.) |
| foreach key [dict keys $parameters] { |
| set $key [dict get $parameters $key] |
| } |
| |
| # For symmetric devices, set the drain-specific parameters to be the |
| # same as the generic parameters. |
| |
| if {![dict exists $parameters drain_diff_type]} { |
| set drain_diff_type $diff_type |
| } |
| if {![dict exists $parameters drain_diff_contact_type]} { |
| set drain_diff_contact_type $diff_contact_type |
| } |
| if {![dict exists $parameters drain_diff_extension]} { |
| set drain_diff_extension $diff_extension |
| } |
| |
| # Draw the diffusion and poly |
| pushbox |
| box size 0 0 |
| pushbox |
| set hw [/ $w 2.0] |
| set hl [/ $l 2.0] |
| box grow n ${hw}um |
| box grow s ${hw}um |
| box grow e ${hl}um |
| box grow w ${hl}um |
| # Set drain and source sides based on "evens". |
| if {$evens == 0} { |
| set dside e |
| set sside w |
| } else { |
| set dside w |
| set sside e |
| } |
| pushbox |
| if {${drain_diff_extension} > ${gate_to_diffcont}} { |
| box grow $dside ${drain_diff_extension}um |
| } else { |
| box grow $dside ${gate_to_diffcont}um |
| # Grow to far side of contact; avoids diffusion separation if |
| # the contact is a dogbone and is moved outward to meet the DRC |
| # diffusion to gate spacing rule. |
| set hc [/ ${contact_size} 2.0] |
| box grow $dside ${hc}um |
| } |
| paint ${drain_diff_type} |
| popbox |
| pushbox |
| if {${diff_extension} > ${gate_to_diffcont}} { |
| box grow $sside ${diff_extension}um |
| } else { |
| box grow $sside ${gate_to_diffcont}um |
| # Grow to far side of contact; avoids diffusion separation if |
| # the contact is a dogbone and is moved outward to meet the DRC |
| # diffusion to gate spacing rule. |
| set hc [/ ${contact_size} 2.0] |
| box grow $sside ${hc}um |
| } |
| paint ${diff_type} |
| popbox |
| pushbox |
| if {${gate_extension} > ${gate_to_polycont}} { |
| box grow n ${gate_extension}um |
| box grow s ${gate_extension}um |
| } else { |
| if {$topc} { |
| box grow n ${gate_to_polycont}um |
| } else { |
| box grow n ${gate_extension}um |
| } |
| if {$botc} { |
| box grow s ${gate_to_polycont}um |
| } else { |
| box grow s ${gate_extension}um |
| } |
| } |
| paint ${poly_type} |
| set cext [gf180mcu::getbox] |
| popbox |
| # gate_type need not be defined if poly over diff paints the right type. |
| catch {paint ${gate_type}} |
| popbox |
| |
| # Adjust position of contacts for dogbone geometry |
| # Rule 1: Minimize diffusion length. Contacts only move out |
| # if width < contact diffusion height. They move out enough |
| # that the diffusion-to-poly spacing is satisfied. Change the |
| # orientation of the diffusion contact from vertical to horizontal |
| |
| set diffcont_orient vert |
| set ddover 0 |
| set cdwmin [+ ${contact_size} [* ${diff_surround} 2]] |
| set cstem [- ${gate_to_diffcont} [/ ${cdwmin} 2.0]] |
| set cgrow [- ${diff_poly_space} ${cstem}] |
| if {[+ ${w} ${eps}] < ${cdwmin}} { |
| if {${cgrow} > 0} { |
| set gate_to_diffcont [+ ${gate_to_diffcont} ${cgrow}] |
| set diffcont_orient horz |
| } |
| set ddover [/ [- ${cdwmin} ${w}] 2.0] |
| } |
| |
| # Rule 2: Minimum poly width. Poly contacts only move out |
| # if length < contact poly width. They move out enough |
| # that the diffusion-to-poly spacing is satisfied. |
| |
| set gporig ${gate_to_polycont} |
| set cplmin [+ ${contact_size} [* ${poly_surround} 2]] |
| set cstem [- ${gate_to_polycont} [/ ${cplmin} 2.0]] |
| set cgrow [- ${diff_poly_space} ${cstem}] |
| if {[+ ${l} ${eps}] < ${cplmin}} { |
| if {${cgrow} > 0} { |
| set gate_to_polycont [+ ${gate_to_polycont} ${cgrow}] |
| } |
| } |
| |
| # Rule 3: If both poly and diffusion are dogboned, then move |
| # poly out further to clear spacing to the diffusion contact. |
| |
| if {[+ ${w} ${eps}] < ${cdwmin}} { |
| if {[+ ${l} ${eps}] < ${cplmin}} { |
| set cgrow [/ [- ${cplmin} ${w}] 2.0] |
| set gate_to_polycont [+ ${gate_to_polycont} ${cgrow}] |
| } |
| } |
| |
| # Rule 4: If M > 1 and poly contacts overlap, then increase the |
| # transistor-to-poly-contact distance by the amount of any |
| # diffusion dogbone overhang. |
| |
| if {($poverlap == 1) && ($m > 1)} { |
| if {${gate_to_polycont} - $gporig < $ddover} { |
| set gate_to_polycont [+ ${gporig} ${ddover}] |
| } |
| } |
| |
| # Reduce contact sizes by poly or diffusion surround so that |
| # the contact area edges match the device diffusion or poly. |
| # (Minimum dimensions will be enforced by the contact drawing routine) |
| set cdw [- ${w} [* ${diff_surround} 2]] ;# diff contact height |
| set cpl [- ${l} [* ${poly_surround} 2]] ;# poly contact width |
| |
| # Reduce by coverage percentage. NOTE: If overlapping multiple devices, |
| # keep maximum poly contact coverage. |
| |
| set cdw [* ${cdw} [/ ${diffcov} 100.0]] |
| if {($poverlap == 0) || ($m == 1)} { |
| set cpl [* ${cpl} [/ ${polycov} 100.0]] |
| } |
| |
| # Drain diffusion contact |
| pushbox |
| box move $dside ${hl}um |
| box move $dside ${gate_to_diffcont}um |
| set cext [gf180mcu::unionbox $cext [gf180mcu::draw_contact 0 ${cdw} \ |
| ${diff_surround} ${metal_surround} ${contact_size}\ |
| ${drain_diff_type} ${drain_diff_contact_type} m1 ${diffcont_orient}]] |
| popbox |
| # Source diffusion contact |
| pushbox |
| box move $sside ${hl}um |
| box move $sside ${gate_to_diffcont}um |
| set cext [gf180mcu::unionbox $cext [gf180mcu::draw_contact 0 ${cdw} \ |
| ${diff_surround} ${metal_surround} ${contact_size} \ |
| ${diff_type} ${diff_contact_type} m1 ${diffcont_orient}]] |
| popbox |
| # Top poly contact |
| if {$topc} { |
| pushbox |
| box move n ${hw}um |
| box move n ${gate_to_polycont}um |
| set cext [gf180mcu::unionbox $cext [gf180mcu::draw_contact ${cpl} 0 \ |
| ${poly_surround} ${metal_surround} ${contact_size} \ |
| ${poly_type} ${poly_contact_type} m1 horz]] |
| popbox |
| } |
| # Bottom poly contact |
| if {$botc} { |
| pushbox |
| box move s ${hw}um |
| box move s ${gate_to_polycont}um |
| set cext [gf180mcu::unionbox $cext [gf180mcu::draw_contact ${cpl} 0 \ |
| ${poly_surround} ${metal_surround} ${contact_size} \ |
| ${poly_type} ${poly_contact_type} m1 horz]] |
| popbox |
| } |
| |
| if {$dev_sub_type != ""} { |
| # puts stdout "Diagnostic: bounding box is $cext" |
| set llx [lindex $cext 0] |
| set lly [lindex $cext 1] |
| set urx [lindex $cext 2] |
| set ury [lindex $cext 3] |
| box values ${llx}um ${lly}um ${urx}um ${ury}um |
| box grow n ${sub_surround}um |
| box grow s ${sub_surround}um |
| box grow e ${sub_surround}um |
| box grow w ${sub_surround}um |
| paint ${dev_sub_type} |
| set cext [gf180mcu::getbox] |
| # puts stdout "Diagnostic: bounding box is $cext" |
| } |
| |
| popbox |
| return $cext |
| } |
| |
| #---------------------------------------------------------------- |
| # MOSFET: Draw the tiled device |
| #---------------------------------------------------------------- |
| |
| proc gf180mcu::mos_draw {parameters} { |
| tech unlock * |
| |
| # Set defaults if they are not in parameters |
| set poverlap 0 ;# overlap poly contacts when tiling |
| set doverlap 1 ;# overlap diffusion contacts when tiling |
| set dev_sub_dist 0 ;# substrate to guard ring, if dev_sub_type defined |
| set dev_surround 0 ;# substrate/well surrounds device, if no guard ring |
| |
| # Set a local variable for each parameter (e.g., $l, $w, etc.) |
| foreach key [dict keys $parameters] { |
| set $key [dict get $parameters $key] |
| } |
| |
| # If poverlap is 1 then both poly contacts must be present |
| if {$poverlap == 1} { |
| set topc 1 |
| set botc 1 |
| dict set parameters topc 1 |
| dict set parameters botc 1 |
| } |
| |
| # Normalize distance units to microns |
| set w [magic::spice2float $w] |
| set l [magic::spice2float $l] |
| |
| pushbox |
| box values 0 0 0 0 |
| |
| # Determine the base device dimensions by drawing one device |
| # while all layers are locked (nothing drawn). This allows the |
| # base drawing routine to do complicated geometry without having |
| # to duplicate it here with calculations. |
| |
| tech lock * |
| set bbox [gf180mcu::mos_device $parameters] |
| # puts stdout "Diagnostic: Device bounding box e $bbox (um)" |
| tech unlock * |
| |
| set fw [- [lindex $bbox 2] [lindex $bbox 0]] |
| set fh [- [lindex $bbox 3] [lindex $bbox 1]] |
| set lw [+ [lindex $bbox 2] [lindex $bbox 0]] |
| set lh [+ [lindex $bbox 3] [lindex $bbox 1]] |
| |
| # Determine tile width and height (depends on overlap) |
| if {$poverlap == 0} { |
| set dy [+ $fh $poly_spacing] |
| } else { |
| # overlap poly |
| set dy [- $fh [+ $poly_surround $poly_surround $contact_size]] |
| } |
| |
| if {$doverlap == 0} { |
| set dx [+ $fw $diff_spacing] |
| } else { |
| # overlap diffusions |
| set dx [- $fw [+ $diff_surround $diff_surround $contact_size]] |
| } |
| |
| # Determine core width and height |
| set corex [+ [* [- $nf 1] $dx] $fw] |
| set corey [+ [* [- $m 1] $dy] $fh] |
| set corellx [/ [+ [- $corex $fw] $lw] 2.0] |
| set corelly [/ [+ [- $corey $fh] $lh] 2.0] |
| |
| # If there is a diffusion dogbone, and no top poly contact, then |
| # increase the core height by the amount of the dogbone overhang. |
| |
| if {$topc == 0} { |
| set cdwmin [+ ${contact_size} [* ${diff_surround} 2]] |
| if {${w} < ${cdwmin}} { |
| set corey [+ $corey [/ [- ${cdwmin} ${w}] 2.0]] |
| } |
| } |
| |
| # Calculate guard ring size (measured to contact center) |
| if {($dev_sub_dist > 0) && ([+ $dev_sub_dist $sub_surround] > $diff_spacing)} { |
| set gx [+ $corex [* 2.0 [+ $dev_sub_dist $diff_surround]] $contact_size] |
| } else { |
| set gx [+ $corex [* 2.0 [+ $diff_spacing $diff_surround]] $contact_size] |
| } |
| if {($dev_sub_dist > 0) && ([+ $dev_sub_dist $sub_surround] > $diff_gate_space)} { |
| set gy [+ $corey [* 2.0 [+ $dev_sub_dist $diff_surround]] $contact_size] |
| } else { |
| set gy [+ $corey [* 2.0 [+ $diff_gate_space $diff_surround]] $contact_size] |
| } |
| |
| if {($guard != 0)} { |
| # Somewhat tricky. . . if the width is small and the diffusion is |
| # a dogbone, and the top or bottom poly contact is missing, then |
| # the spacing to the guard ring may be limited by diffusion spacing, not |
| # poly to diffusion. |
| |
| set inset [/ [+ $contact_size [* 2.0 $diff_surround] -$w] 2.0] |
| set sdiff [- [+ $inset $diff_spacing] [+ $gate_extension $diff_gate_space]] |
| |
| if {$sdiff > 0} { |
| if {$topc == 0} { |
| set gy [+ $gy $sdiff] |
| set corelly [+ $corelly [/ $sdiff 2.0]] |
| } |
| if {$botc == 0} { |
| set gy [+ $gy $sdiff] |
| set corelly [- $corelly [/ $sdiff 2.0]] |
| } |
| } |
| } |
| if {$guard != 0} { |
| # Draw the guard ring first, as MOS well may interact with guard ring substrate |
| gf180mcu::guard_ring $gx $gy $parameters |
| } else { |
| pushbox |
| if {$dev_surround == 0} {set dev_surround $sub_surround} |
| set hgx [+ $dev_surround [/ $corex 2]] |
| set hgy [+ $dev_surround [/ $corey 2]] |
| box grow e ${hgx}um |
| box grow w ${hgx}um |
| box grow n ${hgy}um |
| box grow s ${hgy}um |
| paint $sub_type |
| popbox |
| } |
| |
| pushbox |
| box move w ${corellx}um |
| box move s ${corelly}um |
| set evens 1 |
| for {set xp 0} {$xp < $nf} {incr xp} { |
| dict set parameters evens $evens |
| set evens [- 1 $evens] |
| pushbox |
| for {set yp 0} {$yp < $m} {incr yp} { |
| gf180mcu::mos_device $parameters |
| box move n ${dy}um |
| } |
| popbox |
| box move e ${dx}um |
| } |
| popbox |
| popbox |
| |
| tech revert |
| } |
| |
| #------------------- |
| # nMOS 3.3V |
| #------------------- |
| |
| proc gf180mcu::nfet_03v3_draw {parameters} { |
| set newdict [dict create \ |
| gate_type nfet \ |
| diff_type ndiff \ |
| diff_contact_type ndc \ |
| plus_diff_type psd \ |
| plus_contact_type psc \ |
| poly_type poly \ |
| poly_contact_type pc \ |
| sub_type pwell \ |
| sub_surround 0.12 \ |
| ] |
| set drawdict [dict merge $gf180mcu::ruleset $newdict $parameters] |
| return [gf180mcu::mos_draw $drawdict] |
| } |
| |
| #------------------- |
| # pMOS 3.3V |
| #------------------- |
| |
| proc gf180mcu::pfet_03v3_draw {parameters} { |
| set newdict [dict create \ |
| gate_type pfet \ |
| diff_type pdiff \ |
| diff_contact_type pdc \ |
| plus_diff_type nsd \ |
| plus_contact_type nsc \ |
| poly_type poly \ |
| poly_contact_type pc \ |
| dev_surround 0.43 \ |
| sub_type nwell \ |
| ] |
| set drawdict [dict merge $gf180mcu::ruleset $newdict $parameters] |
| return [gf180mcu::mos_draw $drawdict] |
| } |
| |
| #------------------- |
| # pMOS 6.0V |
| #------------------- |
| |
| proc gf180mcu::pfet_06v0_draw {parameters} { |
| set newdict [dict create \ |
| diff_poly_space 0.30 \ |
| diff_gate_space 0.30 \ |
| diff_spacing 0.36 \ |
| gate_type mvpfet \ |
| diff_type mvpdiff \ |
| diff_contact_type mvpdc \ |
| plus_diff_type mvnsd \ |
| plus_contact_type mvnsc \ |
| poly_type poly \ |
| poly_contact_type pc \ |
| sub_surround 0.16 \ |
| dev_surround 0.43 \ |
| sub_type nwell \ |
| ] |
| set drawdict [dict merge $gf180mcu::ruleset $newdict $parameters] |
| return [gf180mcu::mos_draw $drawdict] |
| } |
| |
| #------------------- |
| # nMOS 6.0V |
| #------------------- |
| |
| proc gf180mcu::nfet_06v0_draw {parameters} { |
| set newdict [dict create \ |
| diff_poly_space 0.30 \ |
| diff_gate_space 0.30 \ |
| diff_spacing 0.36 \ |
| gate_type mvnfet \ |
| diff_type mvndiff \ |
| diff_contact_type mvndc \ |
| plus_diff_type mvpsd \ |
| plus_contact_type mvpsc \ |
| poly_type poly \ |
| poly_contact_type pc \ |
| sub_type pwell \ |
| sub_surround 0.16 \ |
| ] |
| set drawdict [dict merge $gf180mcu::ruleset $newdict $parameters] |
| return [gf180mcu::mos_draw $drawdict] |
| } |
| |
| proc gf180mcu::nfet_06v0_nvt_draw {parameters} { |
| set newdict [dict create \ |
| gate_type mvnnfet \ |
| diff_type mvndiff \ |
| diff_contact_type mvndc \ |
| plus_diff_type mvpsd \ |
| plus_contact_type mvpsc \ |
| poly_type poly \ |
| poly_contact_type pc \ |
| sub_type pwell \ |
| sub_surround 0.16 \ |
| gate_extension 0.35 \ |
| ] |
| set drawdict [dict merge $gf180mcu::ruleset $newdict $parameters] |
| return [gf180mcu::mos_draw $drawdict] |
| } |
| #------------------- |
| # nMOS dss 3.0V |
| #------------------- |
| proc gf180mcu::nfet_03v3_dss_draw {parameters} { |
| set newdict [dict create \ |
| gate_type nfet \ |
| diff_type ndiffres \ |
| diff_contact_type ndc \ |
| plus_diff_type psd \ |
| plus_contact_type psc \ |
| poly_type poly \ |
| poly_contact_type pc \ |
| sub_type pwell \ |
| sub_surround 0.12 \ |
| ] |
| set drawdict [dict merge $gf180mcu::ruleset $newdict $parameters] |
| return [gf180mcu::mos_draw $drawdict] |
| } |
| |
| proc gf180mcu::pfet_03v3_dss_draw {parameters} { |
| set newdict [dict create \ |
| gate_type pfet \ |
| diff_type pdiffres \ |
| diff_contact_type pdc \ |
| plus_diff_type nsd \ |
| plus_contact_type nsc \ |
| poly_type poly \ |
| poly_contact_type pc \ |
| dev_surround 0.43 \ |
| sub_type nwell \ |
| ] |
| set drawdict [dict merge $gf180mcu::ruleset $newdict $parameters] |
| return [gf180mcu::mos_draw $drawdict] |
| } |
| |
| #------------------- |
| # pMOS 6.0V |
| #------------------- |
| |
| proc gf180mcu::pfet_06v0_dss_draw {parameters} { |
| set newdict [dict create \ |
| diff_poly_space 0.30 \ |
| diff_gate_space 0.30 \ |
| diff_spacing 0.36 \ |
| gate_type mvpfet \ |
| diff_type mvpdiffres \ |
| diff_contact_type mvpdc \ |
| plus_diff_type mvnsd \ |
| plus_contact_type mvnsc \ |
| poly_type poly \ |
| poly_contact_type pc \ |
| sub_surround 0.16 \ |
| dev_surround 0.43 \ |
| sub_type nwell \ |
| ] |
| set drawdict [dict merge $gf180mcu::ruleset $newdict $parameters] |
| return [gf180mcu::mos_draw $drawdict] |
| } |
| |
| #------------------- |
| # nMOS 6.0V dss |
| #------------------- |
| |
| proc gf180mcu::nfet_06v0_dss_draw {parameters} { |
| set newdict [dict create \ |
| diff_poly_space 0.30 \ |
| diff_gate_space 0.30 \ |
| diff_spacing 0.36 \ |
| gate_type mvnfet \ |
| diff_type mvndiffres \ |
| diff_contact_type mvndc \ |
| plus_diff_type mvpsd \ |
| plus_contact_type mvpsc \ |
| poly_type poly \ |
| poly_contact_type pc \ |
| sub_type pwell \ |
| sub_surround 0.16 \ |
| ] |
| set drawdict [dict merge $gf180mcu::ruleset $newdict $parameters] |
| return [gf180mcu::mos_draw $drawdict] |
| } |
| #----------------------- |
| # 10V LDNMOS |
| #----------------------- |
| |
| proc gf180mcu::nfet_10v0_asym_draw {parameters} { |
| set newdict [dict create \ |
| diff_poly_space 0.30 \ |
| diff_gate_space 0.30 \ |
| diff_spacing 0.36 \ |
| gate_type mvnfet \ |
| diff_type mvndiff \ |
| diff_contact_type mvndc \ |
| drain_diff_type ldndiff \ |
| drain_diff_contact_type ldndiffc \ |
| plus_diff_type mvpsd \ |
| plus_contact_type mvpsc \ |
| poly_type poly \ |
| poly_contact_type pc \ |
| sub_type pwell \ |
| sub_surround 0.16 \ |
| ] |
| set drawdict [dict merge $gf180mcu::ruleset $newdict $parameters] |
| return [gf180mcu::mos_draw $drawdict] |
| } |
| |
| #----------------------- |
| # 10V LDPMOS |
| #----------------------- |
| |
| proc gf180mcu::pfet_10v0_asym_draw {parameters} { |
| set newdict [dict create \ |
| diff_poly_space 0.30 \ |
| diff_gate_space 0.30 \ |
| diff_spacing 0.36 \ |
| gate_type mvpfet \ |
| diff_type mvpdiff \ |
| diff_contact_type mvpdc \ |
| drain_diff_type ldpdiff \ |
| drain_diff_contact_type ldpdiffc \ |
| plus_diff_type mvnsd \ |
| plus_contact_type mvnsc \ |
| poly_type poly \ |
| poly_contact_type pc \ |
| sub_type nwell \ |
| sub_surround 0.16 \ |
| ] |
| set drawdict [dict merge $gf180mcu::ruleset $newdict $parameters] |
| return [gf180mcu::mos_draw $drawdict] |
| } |
| |
| #------------------------ |
| # MOS varactor (3.3V) |
| #------------------------ |
| |
| proc gf180mcu::nmoscap_3p3_draw {parameters} { |
| set newdict [dict create \ |
| gate_type var \ |
| diff_type nsd \ |
| diff_contact_type nsc \ |
| plus_diff_type psd \ |
| plus_contact_type psc \ |
| poly_type poly \ |
| poly_contact_type pc \ |
| sub_type pwell \ |
| dev_sub_type nwell \ |
| dev_sub_dist 0.12 \ |
| ] |
| set drawdict [dict merge $gf180mcu::ruleset $newdict $parameters] |
| return [gf180mcu::mos_draw $drawdict] |
| } |
| |
| #------------------------ |
| # MOS varactor (6.0V) |
| #------------------------ |
| |
| proc gf180mcu::nmoscap_6p0_draw {parameters} { |
| set newdict [dict create \ |
| diff_poly_space 0.30 \ |
| diff_gate_space 0.30 \ |
| diff_spacing 0.36 \ |
| gate_type mvvar \ |
| diff_type mvnsd \ |
| diff_contact_type mvnsc \ |
| plus_diff_type mvpsd \ |
| plus_contact_type mvpsc \ |
| poly_type poly \ |
| poly_contact_type pc \ |
| sub_type pwell \ |
| sub_surround 0.16 \ |
| dev_sub_type nwell \ |
| ] |
| set drawdict [dict merge $gf180mcu::ruleset $newdict $parameters] |
| return [gf180mcu::mos_draw $drawdict] |
| } |
| |
| #---------------------------------------------------------------- |
| # nmos: Check device parameters for out-of-bounds values |
| #---------------------------------------------------------------- |
| |
| proc gf180mcu::mos_check {parameters} { |
| |
| # Set a local variable for each parameter (e.g., $l, $w, etc.) |
| foreach key [dict keys $parameters] { |
| set $key [dict get $parameters $key] |
| } |
| |
| # Normalize distance units to microns |
| set l [magic::spice2float $l] |
| set l [magic::3digitpastdecimal $l] |
| set w [magic::spice2float $w] |
| set w [magic::3digitpastdecimal $w] |
| |
| # nf, m must be integer |
| if {![string is int $nf]} { |
| puts stderr "NF must be an integer!" |
| dict set parameters nf 1 |
| } |
| if {![string is int $m]} { |
| puts stderr "M must be an integer!" |
| dict set parameters m 1 |
| } |
| # diffcov, polycov must be numeric |
| if {[catch {expr abs($diffcov)}]} { |
| puts stderr "diffcov must be numeric!" |
| set diffcov 100 |
| } |
| if {[catch {expr abs($polycov)}]} { |
| puts stderr "polycov must be numeric!" |
| set polycov 100 |
| } |
| |
| if {$l < $lmin} { |
| puts stderr "Mos length must be >= $lmin um" |
| dict set parameters l $lmin |
| } |
| if {$w < $wmin} { |
| puts stderr "Mos width must be >= $wmin um" |
| dict set parameters w $wmin |
| } |
| if {$nf < 1} { |
| puts stderr "NF must be >= 1" |
| dict set parameters nf 1 |
| } |
| if {$m < 1} { |
| puts stderr "M must be >= 1" |
| dict set parameters m 1 |
| } |
| if {$diffcov < 20 } { |
| puts stderr "Diffusion contact coverage must be at least 20%" |
| dict set parameters diffcov 20 |
| } elseif {$diffcov > 100 } { |
| puts stderr "Diffusion contact coverage can't be more than 100%" |
| dict set parameters diffcov 100 |
| } |
| if {$polycov < 20 } { |
| puts stderr "Poly contact coverage must be at least 20%" |
| dict set parameters polycov 20 |
| } elseif {$polycov > 100 } { |
| puts stderr "Poly contact coverage can't be more than 100%" |
| dict set parameters polycov 100 |
| } |
| |
| # Values must satisfy diffusion-to-tap spacing of 20um. |
| # Therefore the maximum of guard ring width or height cannot exceed 40um. |
| # If in violation, reduce counts first, as these are easiest to recover |
| # by duplicating the device and overlapping the wells. |
| set origm $m |
| set orignf $nf |
| while true { |
| set yext [expr ($w + 3.0) * $m] |
| set xext [expr ($l + 1.0) * $nf + 1.1] |
| if {[expr min($xext, $yext)] > 40.0} { |
| if {$yext > 40.0 && $m > 1} { |
| incr m -1 |
| } elseif {$xext > 40.0 && $nf > 1} { |
| incr nf -1 |
| } elseif {$yext > 40.0} { |
| set w 37 |
| puts -nonewline stderr "Transistor width must be < 37 um" |
| puts stderr " to avoid tap spacing violation." |
| dict set parameters w $w |
| } elseif {$xext > 40.0} { |
| set l 37.9 |
| puts -nonewline stderr "Transistor length must be < 37.9 um" |
| puts stderr " to avoid tap spacing violation." |
| dict set parameters l $l |
| } |
| } else { |
| break |
| } |
| } |
| if {$m != $origm} { |
| puts stderr "Y repeat reduced to prevent tap distance violation" |
| dict set parameters m $m |
| } |
| if {$nf != $orignf} { |
| puts stderr "X repeat reduced to prevent tap distance violation" |
| dict set parameters nf $nf |
| } |
| |
| return $parameters |
| } |
| |
| #---------------------------------------------------------------- |
| |
| proc gf180mcu::nfet_03v3_check {parameters} { |
| return [gf180mcu::mos_check $parameters] |
| } |
| |
| proc gf180mcu::nfet_06v0_check {parameters} { |
| return [gf180mcu::mos_check $parameters] |
| } |
| |
| proc gf180mcu::nfet_06v0_nvt_check {parameters} { |
| return [gf180mcu::mos_check $parameters] |
| } |
| |
| proc gf180mcu::pfet_03v3_check {parameters} { |
| return [gf180mcu::mos_check $parameters] |
| } |
| |
| proc gf180mcu::pfet_06v0_check {parameters} { |
| return [gf180mcu::mos_check $parameters] |
| } |
| |
| proc gf180mcu::nmoscap_3p3_check {parameters} { |
| return [gf180mcu::mos_check $parameters] |
| } |
| |
| proc gf180mcu::nmoscap_6p0_check {parameters} { |
| return [gf180mcu::mos_check $parameters] |
| } |
| |
| proc gf180mcu::nfet_10v0_asym_check {parameters} { |
| return [gf180mcu::mos_check $parameters] |
| } |
| |
| proc gf180mcu::pfet_10v0_asym_check {parameters} { |
| return [gf180mcu::mos_check $parameters] |
| } |
| |
| proc gf180mcu::nfet_03v3_dss_check {parameters} { |
| return [gf180mcu::mos_check $parameters] |
| } |
| |
| proc gf180mcu::nfet_06v0_dss_check {parameters} { |
| return [gf180mcu::mos_check $parameters] |
| } |
| |
| proc gf180mcu::pfet_03v3_dss_check {parameters} { |
| return [gf180mcu::mos_check $parameters] |
| } |
| |
| proc gf180mcu::pfet_06v0_dss_check {parameters} { |
| return [gf180mcu::mos_check $parameters] |
| } |
| |
| #---------------------------------------------------------------- |
| # Bipolar: Specify all user-editable default values |
| # |
| # deltax --- Additional horizontal space between devices |
| # deltay --- Additional vertical space between devices |
| # nx --- Number of arrayed devices in X |
| # ny --- Number of arrayed devices in Y |
| # |
| # Note that these values, specifically nx, ny, deltax, |
| # and deltay, are properties of the instance, not the cell. |
| # They translate to the instance array x and y counts; while |
| # deltax is the x pitch less the cell width, and deltay is the |
| # y pitch less the cell height. |
| # |
| # non-user-editable |
| # |
| # nocell --- Indicates that this cell has a predefined layout |
| # and therefore there is no cell to draw. |
| # xstep --- Width of the cell (nominal array pitch in X) |
| # ystep --- Height of the cell (nominal array pitch in Y) |
| #---------------------------------------------------------------- |
| |
| proc gf180mcu::npn_05p00x05p00_defaults {} { |
| return {nx 1 ny 1 deltax 0 deltay 0 nocell 1 xstep 15.29 ystep 22.92} |
| } |
| |
| proc gf180mcu::npn_00p54x02p00_defaults {} { |
| return {nx 1 ny 1 deltax 0 deltay 0 nocell 1 xstep 13.55 ystep 14.95} |
| } |
| |
| proc gf180mcu::npn_10p00x10p00_defaults {} { |
| return {nx 1 ny 1 deltax 0 deltay 0 nocell 1 xstep 23.04 ystep 23.04} |
| } |
| |
| proc gf180mcu::npn_00p54x10p00_defaults {} { |
| return {nx 1 ny 1 deltax 0 deltay 0 nocell 1 xstep 16.94 ystep 16.94} |
| } |
| |
| proc gf180mcu::eFuse_defaults {} { |
| return {nx 1 ny 1 deltax 0 deltay 0 nocell 1 xstep 16.94 ystep 16.94} |
| } |
| |
| proc gf180mcu::npn_00p54x04p00_defaults {} { |
| return {nx 1 ny 1 deltax 0 deltay 0 nocell 1 xstep 13.92 ystep 16.96} |
| } |
| |
| proc gf180mcu::npn_00p54x08p00_defaults {} { |
| return {nx 1 ny 1 deltax 0 deltay 0 nocell 1 xstep 12.36 ystep 21.22} |
| } |
| |
| proc gf180mcu::pnp_05p00x05p00_defaults {} { |
| return {nx 1 ny 1 deltax 0 deltay 0 nocell 1 xstep 8.25 ystep 8.25} |
| } |
| |
| proc gf180mcu::pnp_05p00x00p42_defaults {} { |
| return {nx 1 ny 1 deltax 0 deltay 0 nocell 1 xstep 3.69 ystep 8.25} |
| } |
| |
| proc gf180mcu::pnp_10p00x10p00_defaults {} { |
| return {nx 1 ny 1 deltax 0 deltay 0 nocell 1 xstep 13.25 ystep 13.25} |
| } |
| |
| proc gf180mcu::pnp_10p00x00p42_defaults {} { |
| return {nx 1 ny 1 deltax 0 deltay 0 nocell 1 xstep 3.75 ystep 13.25} |
| } |
| |
| #---------------------------------------------------------------- |
| # Bipolar: Conversion from SPICE netlist parameters to toolkit |
| #---------------------------------------------------------------- |
| |
| proc gf180mcu::fixed_convert {parameters} { |
| set pdkparams [dict create] |
| dict for {key value} $parameters { |
| switch -nocase $key { |
| m { |
| dict set pdkparams nx $value |
| } |
| } |
| } |
| return $pdkparams |
| } |
| |
| #---------------------------------------------------------------- |
| |
| proc gf180mcu::npn_05p00x05p00_convert {parameters} { |
| return [gf180mcu::fixed_convert $parameters] |
| } |
| |
| proc gf180mcu::npn_00p54x02p00_convert {parameters} { |
| return [gf180mcu::fixed_convert $parameters] |
| } |
| |
| proc gf180mcu::npn_10p00x10p00_convert {parameters} { |
| return [gf180mcu::fixed_convert $parameters] |
| } |
| |
| proc gf180mcu::npn_00p54x04p00_convert {parameters} { |
| return [gf180mcu::fixed_convert $parameters] |
| } |
| |
| proc gf180mcu::npn_00p54x10p00_convert {parameters} { |
| return [gf180mcu::fixed_convert $parameters] |
| } |
| proc gf180mcu::eFuse_convert {parameters} { |
| return [gf180mcu::fixed_convert $parameters] |
| } |
| proc gf180mcu::npn_00p54x08p00_convert {parameters} { |
| return [gf180mcu::fixed_convert $parameters] |
| } |
| |
| proc gf180mcu::pnp_05p00x05p00_convert {parameters} { |
| return [gf180mcu::fixed_convert $parameters] |
| } |
| |
| proc gf180mcu::pnp_05p00x00p42_convert {parameters} { |
| return [gf180mcu::fixed_convert $parameters] |
| } |
| |
| proc gf180mcu::pnp_10p00x10p00_convert {parameters} { |
| return [gf180mcu::fixed_convert $parameters] |
| } |
| |
| proc gf180mcu::pnp_10p00x00p42_convert {parameters} { |
| return [gf180mcu::fixed_convert $parameters] |
| } |
| |
| #---------------------------------------------------------------- |
| # Bipolar: Interactively specifies the fixed layout parameters |
| #---------------------------------------------------------------- |
| |
| proc gf180mcu::fixed_dialog {parameters} { |
| # Instance fields: nx, ny, pitchx, pitchy |
| # Editable fields: nx, ny, deltax, deltay |
| # Non-editable fields: nocell, xstep, ystep |
| |
| # Set a local variable for each parameter (e.g., $l, $w, etc.) |
| foreach key [dict keys $parameters] { |
| set $key [dict get $parameters $key] |
| } |
| |
| # "nocell" field causes nx and ny to be dropped in from |
| # "array count". Also "pitchx" and "pitchy" are passed |
| # in internal units. Convert these to microns and generate |
| # If there is no pitchx and pitchy, then the device has not |
| # yet been created, so keep the deltax and deltay defaults. |
| |
| if [dict exists $parameters pitchx] { |
| set pitchux [magic::i2u $pitchx] |
| set stepux [magic::spice2float $xstep] |
| set deltax [magic::3digitpastdecimal [expr $pitchux - $stepux]] |
| # An array size 1 should not cause deltax to go negative |
| if {$deltax < 0.0} {set deltax 0.0} |
| dict set parameters deltax $deltax |
| } |
| if [dict exists $parameters pitchy] { |
| set pitchuy [magic::i2u $pitchy] |
| set stepuy [magic::spice2float $ystep] |
| set deltay [magic::3digitpastdecimal [expr $pitchuy - $stepuy]] |
| # An array size 1 should not cause deltay to go negative |
| if {$deltay < 0.0} {set deltay 0.0} |
| dict set parameters deltay $deltay |
| } |
| |
| magic::add_entry nx "NX" $parameters |
| magic::add_entry ny "NY" $parameters |
| magic::add_entry deltax "X step (um)" $parameters |
| magic::add_entry deltay "Y step (um)" $parameters |
| } |
| |
| #---------------------------------------------------------------- |
| |
| proc gf180mcu::npn_05p00x05p00_dialog {parameters} { |
| gf180mcu::fixed_dialog $parameters |
| } |
| |
| proc gf180mcu::npn_00p54x02p00_dialog {parameters} { |
| gf180mcu::fixed_dialog $parameters |
| } |
| |
| proc gf180mcu::npn_10p00x10p00_dialog {parameters} { |
| gf180mcu::fixed_dialog $parameters |
| } |
| |
| proc gf180mcu::npn_00p54x04p00_dialog {parameters} { |
| gf180mcu::fixed_dialog $parameters |
| } |
| |
| proc gf180mcu::npn_00p54x10p00_dialog {parameters} { |
| gf180mcu::fixed_dialog $parameters |
| } |
| |
| proc gf180mcu::eFuse_dialog {parameters} { |
| gf180mcu::fixed_dialog $parameters |
| } |
| |
| proc gf180mcu::npn_00p54x08p00_dialog {parameters} { |
| gf180mcu::fixed_dialog $parameters |
| } |
| |
| proc gf180mcu::pnp_05p00x05p00_dialog {parameters} { |
| gf180mcu::fixed_dialog $parameters |
| } |
| |
| proc gf180mcu::pnp_05p00x00p42_dialog {parameters} { |
| gf180mcu::fixed_dialog $parameters |
| } |
| |
| proc gf180mcu::pnp_10p00x10p00_dialog {parameters} { |
| gf180mcu::fixed_dialog $parameters |
| } |
| |
| proc gf180mcu::pnp_10p00x00p42_dialog {parameters} { |
| gf180mcu::fixed_dialog $parameters |
| } |
| |
| #---------------------------------------------------------------- |
| # PNP: Draw the device |
| #---------------------------------------------------------------- |
| |
| proc gf180mcu::fixed_draw {devname parameters} { |
| |
| # Set a local variable for each parameter (e.g., $l, $w, etc.) |
| foreach key [dict keys $parameters] { |
| set $key [dict get $parameters $key] |
| } |
| |
| # This cell declares "nocell" in parameters, so it needs to |
| # instance the cell and set properties. |
| |
| # Instantiate the cell. The name corresponds to the cell in the primdev directory. |
| set instname [getcell ${devname}] |
| |
| set deltax [magic::spice2float $deltax] |
| set deltay [magic::spice2float $deltay] |
| set xstep [magic::spice2float $xstep] |
| set ystep [magic::spice2float $ystep] |
| |
| # Array stepping |
| if {$nx > 1 || $ny > 1} { |
| set xstep [expr $xstep + $deltax] |
| set ystep [expr $ystep + $deltay] |
| box size ${xstep}um ${ystep}um |
| array $nx $ny |
| } |
| select cell $instname |
| expand |
| return $instname |
| } |
| |
| #---------------------------------------------------------------- |
| # No additional parameters declared for drawing |
| #---------------------------------------------------------------- |
| |
| proc gf180mcu::npn_05p00x05p00_draw {parameters} { |
| return [gf180mcu::fixed_draw npn_05p00x05p00_0 $parameters] |
| } |
| |
| proc gf180mcu::npn_00p54x02p00_draw {parameters} { |
| return [gf180mcu::fixed_draw npn_00p54x02p00_0 $parameters] |
| } |
| |
| proc gf180mcu::npn_10p00x10p00_draw {parameters} { |
| return [gf180mcu::fixed_draw npn_10p00x10p00_0 $parameters] |
| } |
| |
| proc gf180mcu::npn_00p54x08p00_draw {parameters} { |
| return [gf180mcu::fixed_draw npn_npn_00p54x08p00_0 $parameters] |
| } |
| |
| proc gf180mcu::npn_00p54x10p00_draw {parameters} { |
| return [gf180mcu::fixed_draw npn_00p54x10p00_0 $parameters] |
| } |
| |
| proc gf180mcu::eFuse_draw {parameters} { |
| return [gf180mcu::fixed_draw eFuse_0 $parameters] |
| } |
| |
| proc gf180mcu::npn_00p54x04p00_draw {parameters} { |
| return [gf180mcu::fixed_draw npn_00p54x04p00_0 $parameters] |
| } |
| |
| proc gf180mcu::pnp_05p00x05p00_draw {parameters} { |
| return [gf180mcu::fixed_draw pnp_05p00x05p00_0 $parameters] |
| } |
| |
| proc gf180mcu::pnp_05p00x00p42_draw {parameters} { |
| return [gf180mcu::fixed_draw pnp_05p00x00p42_0 $parameters] |
| } |
| |
| proc gf180mcu::pnp_10p00x10p00_draw {parameters} { |
| return [gf180mcu::fixed_draw pnp_10p00x10p00_0 $parameters] |
| } |
| |
| proc gf180mcu::pnp_10p00x00p42_draw {parameters} { |
| return [gf180mcu::fixed_draw pnp_10p00x00p42_0 $parameters] |
| } |
| |
| #---------------------------------------------------------------- |
| # Bipolar: Check device parameters for out-of-bounds values |
| #---------------------------------------------------------------- |
| |
| proc gf180mcu::fixed_check {parameters} { |
| |
| # Set a local variable for each parameter (e.g., $l, $w, etc.) |
| foreach key [dict keys $parameters] { |
| set $key [dict get $parameters $key] |
| } |
| |
| # Normalize distance units to microns |
| set deltax [magic::spice2float $deltax -1] |
| set deltax [magic::3digitpastdecimal $deltax] |
| set deltay [magic::spice2float $deltay -1] |
| set deltay [magic::3digitpastdecimal $deltay] |
| |
| # nx, ny must be integer |
| if {![string is int $nx]} { |
| puts stderr "NX must be an integer!" |
| dict set parameters nx 1 |
| } |
| if {![string is int $ny]} { |
| puts stderr "NY must be an integer!" |
| dict set parameters nx 1 |
| } |
| |
| # Number of devices in X and Y must be at least 1 |
| if {$nx < 1} { |
| puts stderr "NX must be >= 1" |
| dict set parameters nx 1 |
| } |
| if {$ny < 1} { |
| puts stderr "NY must be >= 1" |
| dict set parameters nx 1 |
| } |
| # Step less than zero violates DRC |
| if {$deltax < 0} { |
| puts stderr "X step must be >= 0" |
| dict set parameters deltax 0 |
| } |
| if {$deltay < 0} { |
| puts stderr "Y step must be >= 0" |
| dict set parameters deltay 0 |
| } |
| return $parameters |
| } |
| |
| #---------------------------------------------------------------- |
| |
| proc gf180mcu::npn_05p00x05p00_check {parameters} { |
| return [gf180mcu::fixed_check $parameters] |
| } |
| |
| proc gf180mcu::npn_00p54x02p00_check {parameters} { |
| return [gf180mcu::fixed_check $parameters] |
| } |
| |
| proc gf180mcu::npn_10p00x10p00_check {parameters} { |
| return [gf180mcu::fixed_check $parameters] |
| } |
| |
| proc gf180mcu::npn_00p54x04p00_check {parameters} { |
| return [gf180mcu::fixed_check $parameters] |
| } |
| |
| proc gf180mcu::npn_00p54x10p00_check {parameters} { |
| return [gf180mcu::fixed_check $parameters] |
| } |
| |
| proc gf180mcu::eFuse_check {parameters} { |
| return [gf180mcu::fixed_check $parameters] |
| } |
| |
| proc gf180mcu::npn_00p54x08p00_check {parameters} { |
| return [gf180mcu::fixed_check $parameters] |
| } |
| |
| proc gf180mcu::pnp_05p00x05p00_check {parameters} { |
| return [gf180mcu::fixed_check $parameters] |
| } |
| |
| proc gf180mcu::pnp_05p00x00p42_check {parameters} { |
| return [gf180mcu::fixed_check $parameters] |
| } |
| |
| proc gf180mcu::pnp_10p00x10p00_check {parameters} { |
| return [gf180mcu::fixed_check $parameters] |
| } |
| |
| proc gf180mcu::pnp_10p00x00p42_check {parameters} { |
| return [gf180mcu::fixed_check $parameters] |
| } |
| |
| |
