Made various changes and additions to the device generator scripts for magic for sky130: 1) Added internal spacing between the 3.3V nfet device and guard ring so that multiple cells can be abutted without causing an HVNTM spacing error. 2) Corrected missing vias over contacts for snake resistors 3) Added port labels to most of the device types (which should make LVS easier) 4) Added an option to the lower MiM cap to increase the internal spacings in a cap array so that it becomes compatible with the upper MiM cap spacing, so that MiM caps can be easily stacked.
diff --git a/sky130/magic/sky130.tcl b/sky130/magic/sky130.tcl index 736e82a..69b6b22 100644 --- a/sky130/magic/sky130.tcl +++ b/sky130/magic/sky130.tcl
@@ -1052,6 +1052,10 @@ magic::add_dependency sky130::diode_recalc $device sky130 l w area peri + if {[dict exists $parameters addports]} { + magic::add_checkbox doports "Add ports" $parameters + } + # magic::add_checkbox dummy "Add dummy" $parameters } @@ -1172,7 +1176,7 @@ elc 1 erc 1 etc 1 ebc 1 doverlap 0 \ compatible {sky130_fd_pr__diode_pw2nd_05v5 sky130_fd_pr__diode_pw2nd_05v5_lvt \ sky130_fd_pr__diode_pw2nd_05v5_nvt sky130_fd_pr__diode_pw2nd_11v0} \ - full_metal 1 vias 1 viagb 0 viagt 0 viagl 0 viagr 0} + full_metal 1 vias 1 viagb 0 viagt 0 viagl 0 viagr 0 doports 1} } proc sky130::sky130_fd_pr__diode_pw2nd_05v5_lvt_defaults {} { @@ -1181,7 +1185,7 @@ elc 1 erc 1 etc 1 ebc 1 doverlap 0 \ compatible {sky130_fd_pr__diode_pw2nd_05v5 sky130_fd_pr__diode_pw2nd_05v5_lvt \ sky130_fd_pr__diode_pw2nd_05v5_nvt sky130_fd_pr__diode_pw2nd_11v0} \ - full_metal 1 vias 1 viagb 0 viagt 0 viagl 0 viagr 0} + full_metal 1 vias 1 viagb 0 viagt 0 viagl 0 viagr 0 doports 1} } proc sky130::sky130_fd_pr__diode_pw2nd_05v5_nvt_defaults {} { @@ -1190,7 +1194,7 @@ elc 1 erc 1 etc 1 ebc 1 doverlap 0 \ compatible {sky130_fd_pr__diode_pw2nd_05v5 sky130_fd_pr__diode_pw2nd_05v5_lvt \ sky130_fd_pr__diode_pw2nd_05v5_nvt sky130_fd_pr__diode_pw2nd_11v0} \ - full_metal 1 vias 1 viagb 0 viagt 0 viagl 0 viagr 0} + full_metal 1 vias 1 viagb 0 viagt 0 viagl 0 viagr 0 doports 1} } proc sky130::sky130_fd_pr__diode_pw2nd_11v0_defaults {} { @@ -1199,7 +1203,7 @@ elc 1 erc 1 etc 1 ebc 1 doverlap 0 \ compatible {sky130_fd_pr__diode_pw2nd_05v5 sky130_fd_pr__diode_pw2nd_05v5_lvt \ sky130_fd_pr__diode_pw2nd_05v5_nvt sky130_fd_pr__diode_pw2nd_11v0} \ - full_metal 1 vias 1 viagb 0 viagt 0 viagl 0 viagr 0} + full_metal 1 vias 1 viagb 0 viagt 0 viagl 0 viagr 0 doports 1} } proc sky130::sky130_fd_pr__photodiode_defaults {} { @@ -1213,7 +1217,7 @@ glc 1 grc 1 gtc 1 gbc 1 doverlap 0 \ compatible {sky130_fd_pr__diode_pd2nw_05v5 sky130_fd_pr__diode_pd2nw_05v5_lvt \ sky130_fd_pr__diode_pd2nw_05v5_hvt sky130_fd_pr__diode_pd2nw_11v0} \ - full_metal 1 vias 1 viagb 0 viagt 0 viagl 0 viagr 0} + full_metal 1 vias 1 viagb 0 viagt 0 viagl 0 viagr 0 doports 1} } proc sky130::sky130_fd_pr__diode_pd2nw_05v5_lvt_defaults {} { @@ -1223,7 +1227,7 @@ glc 1 grc 1 gtc 1 gbc 1 doverlap 0 \ compatible {sky130_fd_pr__diode_pd2nw_05v5 sky130_fd_pr__diode_pd2nw_05v5_lvt \ sky130_fd_pr__diode_pd2nw_05v5_hvt sky130_fd_pr__diode_pd2nw_11v0} \ - full_metal 1 vias 1 viagb 0 viagt 0 viagl 0 viagr 0} + full_metal 1 vias 1 viagb 0 viagt 0 viagl 0 viagr 0 doports 1} } proc sky130::sky130_fd_pr__diode_pd2nw_05v5_hvt_defaults {} { @@ -1233,7 +1237,7 @@ glc 1 grc 1 gtc 1 gbc 1 doverlap 0 \ compatible {sky130_fd_pr__diode_pd2nw_05v5 sky130_fd_pr__diode_pd2nw_05v5_lvt \ sky130_fd_pr__diode_pd2nw_05v5_hvt sky130_fd_pr__diode_pd2nw_11v0} \ - full_metal 1 vias 1 viagb 0 viagt 0 viagl 0 viagr 0} + full_metal 1 vias 1 viagb 0 viagt 0 viagl 0 viagr 0 doports 1} } @@ -1244,7 +1248,7 @@ glc 1 grc 1 gtc 1 gbc 1 doverlap 0 \ compatible {sky130_fd_pr__diode_pd2nw_05v5 sky130_fd_pr__diode_pd2nw_05v5_lvt \ sky130_fd_pr__diode_pd2nw_05v5_hvt sky130_fd_pr__diode_pd2nw_11v0} \ - full_metal 1 vias 1 viagb 0 viagt 0 viagl 0 viagr 0} + full_metal 1 vias 1 viagb 0 viagt 0 viagl 0 viagr 0 doports 1} } #---------------------------------------------------------------- @@ -1370,9 +1374,13 @@ set eps 0.0005 # Set local default values if they are not in parameters + set doports 0 ;# no port labels by default set dev_surround 0 set dev_sub_type "" + set term_d "" ;# diffusion + set term_s "" ;# substrate/well + # Set a local variable for each parameter (e.g., $l, $w, etc.) foreach key [dict keys $parameters] { set $key [dict get $parameters $key] @@ -1406,6 +1414,12 @@ dict set guardparams grc $erc dict set guardparams gtc $etc dict set guardparams gbc $ebc + + if {$term_s != ""} { + dict set guardparams bulk $term_s + } else { + dict unset guardparams bulk + } set cext [sky130::guard_ring $gx $gy $guardparams] pushbox @@ -1425,6 +1439,13 @@ } popbox + # Diffusion port label + if {$term_d != ""} { + label $term_d c $dev_type + select area label + port make + } + if {${w} < ${l}} { set orient vert } else { @@ -1468,6 +1489,7 @@ set doverlap 0 ;# overlap diodes at contacts set guard 0 ;# draw a guard ring set prohibit_overlap false ;# don't prohibit overlaps + set doports 0 # Set a local variable for each parameter (e.g., $l, $w, etc.) foreach key [dict keys $parameters] { @@ -1527,6 +1549,7 @@ set gy [+ $corey [* 2.0 [+ $diff_spacing $diff_surround]] $contact_size] # Draw the guard ring first, because diode may occupy well/substrate plane + if {$doports} {dict set parameters bulk B} sky130::guard_ring $gx $gy $parameters } @@ -1546,6 +1569,22 @@ for {set xp 0} {$xp < $nx} {incr xp} { pushbox for {set yp 0} {$yp < $ny} {incr yp} { + if {$doports} { + if {($ny == 1) && ($nx == 1)} { + dict set parameters term_d D1 + } elseif {$ny == 1} { + dict set parameters term_d D1_$xp + } elseif {$nx == 1} { + dict set parameters term_d D1_$yp + } else { + dict set parameters term_d D1_${xp}_$yp + } + if {($xp == 0) && ($yp == 0)} { + dict set parameters term_s D2 + } else { + dict set parameters term_s "" + } + } sky130::diode_device $parameters box move n ${dy}um } @@ -1564,6 +1603,8 @@ proc sky130::photodiode_device {parameters} { + set doports 0 ;# no port labels by default + # Set a local variable for each parameter (e.g., $l, $w, etc.) foreach key [dict keys $parameters] { set $key [dict get $parameters $key] @@ -1953,13 +1994,13 @@ return {w 2.00 l 2.00 val 8.0 carea 2.00 cperi 0.19 class capacitor \ nx 1 ny 1 dummy 0 square 0 lmin 2.00 wmin 2.00 \ lmax 30.0 wmax 30.0 dc 0 bconnect 1 tconnect 1 \ - ccov 100} + ccov 100 stack 1 doports 1} } proc sky130::sky130_fd_pr__cap_mim_m3_2_defaults {} { return {w 2.00 l 2.00 val 8.0 carea 2.00 cperi 0.19 class capacitor \ nx 1 ny 1 dummy 0 square 0 lmin 2.00 wmin 2.00 \ lmax 30.0 wmax 30.0 dc 0 bconnect 1 tconnect 1 \ - ccov 100} + ccov 100 doports 1} } #endif (MIM) @@ -2074,9 +2115,16 @@ if {[dict exists $parameters guard]} { magic::add_checkbox guard "Add guard ring" $parameters } + if {[dict exists $parameters stack]} { + magic::add_checkbox stack "Stacked cap compatibility" $parameters + } magic::add_dependency sky130::cap_recalc $device sky130 l w val + if {[dict exists $parameters addports]} { + magic::add_checkbox doports "Add ports" $parameters + } + # magic::add_checkbox dummy "Add dummy" $parameters } @@ -2113,6 +2161,7 @@ set eps 0.0005 # Set local default values if they are not in parameters + set doports 0 ;# no port labels by default set cap_surround 0 set bot_surround 0 set top_surround 0 @@ -2124,6 +2173,9 @@ set contact_size 0 ;# cap contact minimum size set ccov 100 ;# amount of contact coverage + set term_t "" + set term_b "" + # Set a local variable for each parameter (e.g., $l, $w, etc.) foreach key [dict keys $parameters] { set $key [dict get $parameters $key] @@ -2239,9 +2291,21 @@ set cext [sky130::unionbox $cext [sky130::draw_contact 0 ${cl} \ ${end_surround} ${metal_surround} ${contact_size} \ ${bot_type} ${top_contact_type} ${top_type} full]] + # Bottom plate port label + if {$term_b != ""} { + label $term_b c $bot_type + select area label + port make + } popbox popbox + # Top plate port label + if {$term_t != ""} { + label $term_t c $top_type + select area label + port make + } return $cext # cl shrinks top and bottom to accomodate larger bottom metal @@ -2255,6 +2319,8 @@ proc sky130::sandwich_cap_device {parameters} { + set doports 0 ;# no port labels by default + # Set a local variable for each parameter (e.g., $l, $w, etc.) foreach key [dict keys $parameters] { set $key [dict get $parameters $key] @@ -2475,12 +2541,14 @@ set wide_cap_spacing 0 ;# additional spacing for wide metal rule set wide_cap_width 0 set end_spacing 0 + set extra_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 doports 0 # Set a local variable for each parameter (e.g., $l, $w, etc.) foreach key [dict keys $parameters] { @@ -2526,7 +2594,7 @@ 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] + set dx [+ $fw $end_spacing $extra_spacing $dwide] # Determine core width and height set corex [+ [* [- $nx 1] $dx] $fw] @@ -2540,6 +2608,7 @@ set gy [+ $corey [* 2.0 [+ $end_spacing $diff_surround]] $contact_size] # Draw the guard ring first. + if {$doports} {dict set parameters bulk B} sky130::guard_ring $gx $gy $parameters } @@ -2557,6 +2626,41 @@ for {set xp 0} {$xp < $nx} {incr xp} { pushbox for {set yp 0} {$yp < $ny} {incr yp} { + if {$doports} { + if {($ny == 1) && ($nx == 1)} { + dict set parameters term_t C1 + dict set parameters term_b C2 + } elseif {$ny == 1} { + dict set parameters term_t C1_$xp + dict set parameters term_b C2_$xp + } elseif {$nx == 1} { + if {$tconnect} { + dict set parameters term_t C1 + } else { + dict set parameters term_t C1_$yp + } + if {$bconnect} { + dict set parameters term_b C2 + } else { + dict set parameters term_b C2_$yp + } + } else { + if {$tconnect} { + dict set parameters term_t C1_$xp + } else { + dict set parameters term_t C1_${xp}_$yp + } + if {$bconnect} { + dict set parameters term_b C2_$xp + } else { + dict set parameters term_b C2_${xp}_$yp + } + } + if {$yp > 0} { + if {$tconnect} {dict set parameters term_t ""} + if {$bconnect} {dict set parameters term_b ""} + } + } if {$sandwich == 1} { sky130::sandwich_cap_device $parameters } else { @@ -2593,6 +2697,23 @@ #ifdef MIM proc sky130::sky130_fd_pr__cap_mim_m3_1_draw {parameters} { + set stack 0 + + # Set a local variable for each parameter + foreach key [dict keys $parameters] { + set $key [dict get $parameters $key] + } + if {$stack} { + # For cap stacking, dimensions are increased to match the mim2 device + set capspace 1.6 + set capextra 1.83 + set endspace 1.5 + } else { + set capspace 1.2 + set capextra 0.0 + set endspace 1.2 + } + set newdict [dict create \ top_type m4 \ top_contact_type via3 \ @@ -2600,11 +2721,12 @@ cap_contact_type mimcc \ bot_type m3 \ bot_surround 0.2 \ - cap_spacing 1.2 \ + cap_spacing ${capspace} \ + extra_spacing ${capextra} \ cap_surround 0.2 \ top_surround 0.005 \ end_surround 0.1 \ - end_spacing 1.2 \ + end_spacing ${endspace} \ contact_size 0.32 \ metal_surround 0.08 \ ] @@ -2764,7 +2886,7 @@ return {w 2.650 l 26.50 m 1 nx 1 wmin 2.650 lmin 26.50 class resistor \ rho 3050 val 30502 dummy 0 dw 0.25 term 1.0 \ guard 1 endcov 100 full_metal 1 vias 1 \ - viagb 0 viagt 0 viagl 0 viagr 0} + viagb 0 viagt 0 viagl 0 viagr 0 doports 1} } #---------------------------------------------------------------- @@ -2778,7 +2900,7 @@ sterm 0.0 caplen 0.4 snake 0 guard 1 \ glc 1 grc 1 gtc 1 gbc 1 roverlap 0 endcov 100 \ full_metal 1 hv_guard 0 n_guard 0 vias 1 \ - viagb 0 viagt 0 viagl 0 viagr 0} + viagb 0 viagt 0 viagl 0 viagr 0 doports 1} } # "term" is rho * 0.06, the distance between xpc edge and CONT. @@ -2790,7 +2912,7 @@ sky130_fd_pr__res_high_po_0p69 sky130_fd_pr__res_high_po_1p41 \ sky130_fd_pr__res_high_po_2p85 sky130_fd_pr__res_high_po_5p73} \ snake 0 full_metal 1 wmax 0.350 vias 1 n_guard 0 hv_guard 0 \ - viagb 0 viagt 0 viagl 0 viagr 0} + viagb 0 viagt 0 viagl 0 viagr 0 doports 1} } proc sky130::sky130_fd_pr__res_high_po_0p69_defaults {} { return {w 0.690 l 1.00 m 1 nx 1 wmin 0.690 lmin 0.50 class resistor \ @@ -2800,7 +2922,7 @@ sky130_fd_pr__res_high_po_0p69 sky130_fd_pr__res_high_po_1p41 \ sky130_fd_pr__res_high_po_2p85 sky130_fd_pr__res_high_po_5p73} \ snake 0 full_metal 1 wmax 0.690 n_guard 0 hv_guard 0 vias 1 \ - viagb 0 viagt 0 viagl 0 viagr 0} + viagb 0 viagt 0 viagl 0 viagr 0 doports 1} } proc sky130::sky130_fd_pr__res_high_po_1p41_defaults {} { return {w 1.410 l 2.00 m 1 nx 1 wmin 1.410 lmin 0.50 class resistor \ @@ -2810,7 +2932,7 @@ sky130_fd_pr__res_high_po_0p69 sky130_fd_pr__res_high_po_1p41 \ sky130_fd_pr__res_high_po_2p85 sky130_fd_pr__res_high_po_5p73} \ snake 0 full_metal 1 wmax 1.410 n_guard 0 hv_guard 0 vias 1 \ - viagb 0 viagt 0 viagl 0 viagr 0} + viagb 0 viagt 0 viagl 0 viagr 0 doports 1} } proc sky130::sky130_fd_pr__res_high_po_2p85_defaults {} { return {w 2.850 l 3.00 m 1 nx 1 wmin 2.850 lmin 0.50 class resistor \ @@ -2820,7 +2942,7 @@ sky130_fd_pr__res_high_po_0p69 sky130_fd_pr__res_high_po_1p41 \ sky130_fd_pr__res_high_po_2p85 sky130_fd_pr__res_high_po_5p73} \ snake 0 full_metal 1 wmax 2.850 n_guard 0 hv_guard 0 vias 1 \ - viagb 0 viagt 0 viagl 0 viagr 0} + viagb 0 viagt 0 viagl 0 viagr 0 doports 1} } proc sky130::sky130_fd_pr__res_high_po_5p73_defaults {} { return {w 5.730 l 6.00 m 1 nx 1 wmin 5.730 lmin 0.50 class resistor \ @@ -2830,7 +2952,7 @@ sky130_fd_pr__res_high_po_0p69 sky130_fd_pr__res_high_po_1p41 \ sky130_fd_pr__res_high_po_2p85 sky130_fd_pr__res_high_po_5p73} \ snake 0 full_metal 1 wmax 5.730 n_guard 0 hv_guard 0 vias 1 \ - viagb 0 viagt 0 viagl 0 viagr 0} + viagb 0 viagt 0 viagl 0 viagr 0 doports 1} } # "term" is rho * 0.06, the distance between xpc edge and CONT. @@ -2843,7 +2965,7 @@ sky130_fd_pr__res_xhigh_po_0p69 sky130_fd_pr__res_xhigh_po_1p41 \ sky130_fd_pr__res_xhigh_po_2p85 sky130_fd_pr__res_xhigh_po_5p73} \ snake 0 full_metal 1 n_guard 0 hv_guard 0 vias 1 \ - viagb 0 viagt 0 viagl 0 viagr 0} + viagb 0 viagt 0 viagl 0 viagr 0 doports 1} } proc sky130::sky130_fd_pr__res_xhigh_po_0p69_defaults {} { return {w 0.690 l 1.00 m 1 nx 1 wmin 0.690 lmin 0.50 class resistor \ @@ -2854,7 +2976,7 @@ sky130_fd_pr__res_xhigh_po_0p69 sky130_fd_pr__res_xhigh_po_1p41 \ sky130_fd_pr__res_xhigh_po_2p85 sky130_fd_pr__res_xhigh_po_5p73} \ snake 0 full_metal 1 n_guard 0 hv_guard 0 vias 1 \ - viagb 0 viagt 0 viagl 0 viagr 0} + viagb 0 viagt 0 viagl 0 viagr 0 doports 1} } proc sky130::sky130_fd_pr__res_xhigh_po_1p41_defaults {} { return {w 1.410 l 2.00 m 1 nx 1 wmin 1.410 lmin 0.50 class resistor \ @@ -2865,7 +2987,7 @@ sky130_fd_pr__res_xhigh_po_0p69 sky130_fd_pr__res_xhigh_po_1p41 \ sky130_fd_pr__res_xhigh_po_2p85 sky130_fd_pr__res_xhigh_po_5p73} \ snake 0 full_metal 1 n_guard 0 hv_guard 0 vias 1 \ - viagb 0 viagt 0 viagl 0 viagr 0} + viagb 0 viagt 0 viagl 0 viagr 0 doports 1} } proc sky130::sky130_fd_pr__res_xhigh_po_2p85_defaults {} { return {w 2.850 l 3.00 m 1 nx 1 wmin 2.850 lmin 0.50 class resistor \ @@ -2876,7 +2998,7 @@ sky130_fd_pr__res_xhigh_po_0p69 sky130_fd_pr__res_xhigh_po_1p41 \ sky130_fd_pr__res_xhigh_po_2p85 sky130_fd_pr__res_xhigh_po_5p73} \ snake 0 full_metal 1 n_guard 0 hv_guard 0 vias 1 \ - viagb 0 viagt 0 viagl 0 viagr 0} + viagb 0 viagt 0 viagl 0 viagr 0 doports 1} } proc sky130::sky130_fd_pr__res_xhigh_po_5p73_defaults {} { return {w 5.730 l 6.00 m 1 nx 1 wmin 5.730 lmin 0.50 class resistor \ @@ -2887,7 +3009,7 @@ sky130_fd_pr__res_xhigh_po_0p69 sky130_fd_pr__res_xhigh_po_1p41 \ sky130_fd_pr__res_xhigh_po_2p85 sky130_fd_pr__res_xhigh_po_5p73} \ snake 0 full_metal 1 n_guard 0 hv_guard 0 vias 1 \ - viagb 0 viagt 0 viagl 0 viagr 0} + viagb 0 viagt 0 viagl 0 viagr 0 doports 1} } #---------------------------------------------------------------- @@ -2900,7 +3022,7 @@ rho 120 val 600.0 dummy 0 dw 0.05 term 0.0 \ sterm 0.0 caplen 0.4 snake 0 guard 1 \ glc 1 grc 1 gtc 1 gbc 1 roverlap 0 endcov 100 \ - full_metal 1 vias 1 \ + full_metal 1 vias 1 doports 1 \ viagb 0 viagt 0 viagl 0 viagr 0} } @@ -2909,7 +3031,7 @@ rho 120 val 600.0 dummy 0 dw 0.02 term 0.0 \ sterm 0.0 caplen 0.4 snake 0 guard 1 \ glc 1 grc 1 gtc 1 gbc 1 roverlap 0 endcov 100 \ - full_metal 1 vias 1 \ + full_metal 1 vias 1 doports 1 \ viagb 0 viagt 0 viagl 0 viagr 0} } @@ -2923,7 +3045,7 @@ rho 197 val 985.0 dummy 0 dw 0.02 term 0.0 \ sterm 0.0 caplen 0.60 snake 0 guard 1 \ glc 1 grc 1 gtc 1 gbc 1 roverlap 0 endcov 100 \ - full_metal 1 vias 1 \ + full_metal 1 vias 1 doports 1 \ viagb 0 viagt 0 viagl 0 viagr 0} } @@ -2932,7 +3054,7 @@ rho 197 val 985.0 dummy 0 dw 0.02 term 0.0 \ sterm 0.0 caplen 0.60 snake 0 guard 1 \ glc 1 grc 1 gtc 1 gbc 1 roverlap 0 endcov 100 \ - full_metal 1 vias 1 \ + full_metal 1 vias 1 doports 1 \ viagb 0 viagt 0 viagl 0 viagr 0} } @@ -2944,7 +3066,7 @@ proc sky130::sky130_fd_pr__res_generic_l1_defaults {} { return {w 0.170 l 0.170 m 1 nx 1 wmin 0.17 lmin 0.17 class resistor \ rho 12.8 val 12.8 dummy 0 dw 0.0 term 0.0 snake 0 \ - roverlap 0} + roverlap 0 doports 1} } #---------------------------------------------------------------- @@ -2955,7 +3077,7 @@ proc sky130::sky130_fd_pr__res_generic_m1_defaults {} { return {w 0.140 l 0.140 m 1 nx 1 wmin 0.14 lmin 0.14 class resistor \ rho 0.125 val 0.125 dummy 0 dw 0.0 term 0.0 \ - roverlap 0} + roverlap 0 doports 1} } #---------------------------------------------------------------- @@ -2966,7 +3088,7 @@ proc sky130::sky130_fd_pr__res_generic_m2_defaults {} { return {w 0.140 l 0.140 m 1 nx 1 wmin 0.14 lmin 0.14 class resistor \ rho 0.125 val 0.125 dummy 0 dw 0.0 term 0.0 \ - roverlap 0} + roverlap 0 doports 1} } #---------------------------------------------------------------- @@ -2977,7 +3099,7 @@ proc sky130::sky130_fd_pr__res_generic_m3_defaults {} { return {w 0.300 l 0.300 m 1 nx 1 wmin 0.30 lmin 0.30 class resistor \ rho 0.047 val 0.047 dummy 0 dw 0.0 term 0.0 \ - roverlap 0} + roverlap 0 doports 1} } #---------------------------------------------------------------- @@ -2989,12 +3111,12 @@ proc sky130::sky130_fd_pr__res_generic_m4_defaults {} { return {w 0.300 l 0.300 m 1 nx 1 wmin 0.30 lmin 0.30 class resistor \ rho 0.047 val 0.047 dummy 0 dw 0.0 term 0.0 \ - roverlap 0} + roverlap 0 doports 1} } proc sky130::sky130_fd_pr__res_generic_m5_defaults {} { return {w 1.600 l 1.600 m 1 nx 1 wmin 1.60 lmin 1.60 class resistor \ rho 0.029 val 0.029 dummy 0 dw 0.0 term 0.0 \ - roverlap 0} + roverlap 0 doports 1} } #endif (METAL5) @@ -3185,6 +3307,10 @@ } else { magic::add_dependency sky130::res_recalc $device sky130 l w val nx } + + if {[dict exists $parameters addports]} { + magic::add_checkbox doports "Add ports" $parameters + } } #---------------------------------------------------------------- @@ -3279,6 +3405,7 @@ set eps 0.0005 # Set local default values if they are not in parameters + set doports 0 ;# no port labels by default set endcov 0 ;# percent coverage of end contacts set roverlap 0 ;# overlap resistors at end contacts set well_res_overlap 0 ;# not a well resistor @@ -3288,6 +3415,9 @@ set l_delta 0 ;# delta between measured and drawn length set res_idtype none + set term_t "" + set term_b "" + # Set a local variable for each parameter (e.g., $l, $w, etc.) foreach key [dict keys $parameters] { set $key [dict get $parameters $key] @@ -3384,6 +3514,11 @@ set cext [sky130::unionbox $cext [sky130::getbox]] popbox + if {$term_t != ""} { + label $term_t c $end_type + select area label + port make + } if {${end_contact_type} != ""} { # Draw via over contact first if {$vias != 0} { @@ -3420,6 +3555,11 @@ set cext [sky130::unionbox $cext [sky130::getbox]] popbox + if {$term_b != ""} { + label $term_b c $end_type + select area label + port make + } if {${end_contact_type} != ""} { # Draw via over contact first if {$vias != 0} { @@ -3456,11 +3596,16 @@ set eps 0.0005 # Set local default values if they are not in parameters + set doports 0 ;# no port labels by default set endcov 100 ;# percent coverage of end contacts + set vias 0 ;# add vias over terminal 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 term_t "" + set term_b "" + # Set a local variable for each parameter (e.g., $l, $w, etc.) foreach key [dict keys $parameters] { set $key [dict get $parameters $key] @@ -3514,7 +3659,26 @@ set cext [sky130::getbox] popbox + if {$term_t != ""} { + label $term_t c $end_type + select area label + port make + } if {${end_contact_type} != ""} { + # Draw via over contact first + if {$vias != 0} { + pushbox + set ch $res_to_endcont + if {$ch < $via_size} {set ch $via_size} + set cw $epl + if {$cw < $via_size} {set cw $via_size} + box grow n [- $ch [/ $via_size 2]]um + box grow s [/ $via_size 2]um + box grow w [/ $cw 2]um + box grow e [/ $cw 2]um + sky130::mcon_draw + popbox + } set cext [sky130::draw_contact ${cpl} 0 \ ${end_surround} ${metal_surround} ${end_contact_size} \ ${end_type} ${end_contact_type} li horz] @@ -3607,7 +3771,31 @@ set cext [sky130::unionbox $cext [sky130::getbox]] popbox + if {$term_b != ""} { + label $term_b c $end_type + select area label + port make + } if {${end_contact_type} != ""} { + # Draw via over contact first + if {$vias != 0} { + pushbox + set ch $res_to_endcont + if {$ch < $via_size} {set ch $via_size} + set cw $epl + if {$cw < $via_size} {set cw $via_size} + if {$dir == "n"} { + box grow n [/ $via_size 2]um + box grow s [- $ch [/ $via_size 2]]um + } else { + box grow n [- $ch [/ $via_size 2]]um + box grow s [/ $via_size 2]um + } + box grow w [/ $cw 2]um + box grow e [/ $cw 2]um + sky130::mcon_draw + popbox + } set cext [sky130::unionbox $cext [sky130::draw_contact ${cpl} 0 \ ${end_surround} ${metal_surround} ${end_contact_size} \ ${end_type} ${end_contact_type} li horz]] @@ -3656,6 +3844,7 @@ set well_res_overlap 0 ;# additional well extension behind contact set res_diff_spacing 0 ;# spacing from resistor to diffusion set res_idtype none + set doports 0 # Set a local variable for each parameter (e.g., $l, $w, etc.) foreach key [dict keys $parameters] { @@ -3734,6 +3923,7 @@ set gy [+ $corey [* 2.0 [+ $end_spacing $guard_diff_surround]] $contact_size] # Draw the guard ring first, because well resistors are on the substrate plane + if {$doports} {dict set parameters bulk B} sky130::guard_ring $gx $gy $parameters } @@ -3744,6 +3934,21 @@ for {set xp 0} {$xp < $nx} {incr xp} { pushbox for {set yp 0} {$yp < $m} {incr yp} { + if {$doports} { + if {($m == 1) && ($nx == 1)} { + dict set parameters term_t R1 + dict set parameters term_b R2 + } elseif {$m == 1} { + dict set parameters term_t R1_$xp + dict set parameters term_b R2_$xp + } elseif {$nx == 1} { + dict set parameters term_t R1_$yp + dict set parameters term_b R2_$yp + } else { + dict set parameters term_t R1_${xp}_$yp + dict set parameters term_b R2_${xp}_$yp + } + } if {$snake == 1} { sky130::res_snake_device $nf $parameters } else { @@ -5223,7 +5428,7 @@ sky130_fd_pr__pfet_01v8_lvt sky130_fd_pr__pfet_01v8_hvt \ sky130_fd_pr__pfet_g5v0d10v5} full_metal 1 \ viasrc 100 viadrn 100 viagate 100 \ - viagb 0 viagr 0 viagl 0 viagt 0} + viagb 0 viagr 0 viagl 0 viagt 0 doports 1} } proc sky130::sky130_fd_pr__pfet_01v8_lvt_defaults {} { @@ -5234,7 +5439,7 @@ sky130_fd_pr__pfet_01v8_lvt sky130_fd_pr__pfet_01v8_hvt \ sky130_fd_pr__pfet_g5v0d10v5} full_metal 1 \ viasrc 100 viadrn 100 viagate 100 \ - viagb 0 viagr 0 viagl 0 viagt 0} + viagb 0 viagr 0 viagl 0 viagt 0 doports 1} } proc sky130::sky130_fd_pr__pfet_01v8_hvt_defaults {} { @@ -5245,7 +5450,7 @@ sky130_fd_pr__pfet_01v8_lvt sky130_fd_pr__pfet_01v8_hvt \ sky130_fd_pr__pfet_g5v0d10v5} full_metal 1 \ viasrc 100 viadrn 100 viagate 100 \ - viagb 0 viagr 0 viagl 0 viagt 0} + viagb 0 viagr 0 viagl 0 viagt 0 doports 1} } proc sky130::sky130_fd_pr__pfet_g5v0d10v5_defaults {} { @@ -5256,7 +5461,7 @@ sky130_fd_pr__pfet_01v8_lvt sky130_fd_pr__pfet_01v8_hvt \ sky130_fd_pr__pfet_g5v0d10v5} full_metal 1 \ viasrc 100 viadrn 100 viagate 100 \ - viagb 0 viagr 0 viagl 0 viagt 0} + viagb 0 viagr 0 viagl 0 viagt 0 doports 1} } proc sky130::sky130_fd_pr__pfet_g5v0d16v0_defaults {} { @@ -5264,7 +5469,7 @@ guard 1 glc 1 grc 1 gtc 1 gbc 1 tbcov 100 rlcov 100 \ topc 1 botc 1 poverlap 0 doverlap 0 lmin 1.050 wmin 5.00 \ class mosfet full_metal 1 viasrc 100 viadrn 100 viagate 100 \ - viagb 0 viagr 0 viagl 0 viagt 0} + viagb 0 viagr 0 viagl 0 viagt 0 doports 1} } #---------------------------------------------------------------- @@ -5282,7 +5487,7 @@ sky130_fd_pr__nfet_g5v0d10v5 sky130_fd_pr__nfet_05v0_nvt \ sky130_fd_pr__nfet_03v3_nvt} \ full_metal 1 viasrc 100 viadrn 100 viagate 100 \ - viagb 0 viagr 0 viagl 0 viagt 0} + viagb 0 viagr 0 viagl 0 viagt 0 doports 1} } proc sky130::sky130_fd_pr__nfet_01v8_lvt_defaults {} { @@ -5295,7 +5500,7 @@ sky130_fd_pr__nfet_g5v0d10v5 sky130_fd_pr__nfet_05v0_nvt \ sky130_fd_pr__nfet_03v3_nvt} \ full_metal 1 viasrc 100 viadrn 100 viagate 100 \ - viagb 0 viagr 0 viagl 0 viagt 0} + viagb 0 viagr 0 viagl 0 viagt 0 doports 1} } proc sky130::sky130_fd_bs_flash__special_sonosfet_star_defaults {} { @@ -5308,7 +5513,7 @@ sky130_fd_pr__nfet_g5v0d10v5 sky130_fd_pr__nfet_05v0_nvt \ sky130_fd_pr__nfet_03v3_nvt} \ full_metal 1 viasrc 100 viadrn 100 viagate 100 \ - viagb 0 viagr 0 viagl 0 viagt 0} + viagb 0 viagr 0 viagl 0 viagt 0 doports 1} } proc sky130::sky130_fd_pr__nfet_g5v0d10v5_defaults {} { @@ -5321,7 +5526,7 @@ sky130_fd_pr__nfet_g5v0d10v5 sky130_fd_pr__nfet_05v0_nvt \ sky130_fd_pr__nfet_03v3_nvt} \ full_metal 1 viasrc 100 viadrn 100 viagate 100 \ - viagb 0 viagr 0 viagl 0 viagt 0} + viagb 0 viagr 0 viagl 0 viagt 0 doports 1} } proc sky130::sky130_fd_pr__nfet_05v0_nvt_defaults {} { @@ -5334,7 +5539,7 @@ sky130_fd_pr__nfet_g5v0d10v5 sky130_fd_pr__nfet_05v0_nvt \ sky130_fd_pr__nfet_03v3_nvt} \ full_metal 1 viasrc 100 viadrn 100 viagate 100 \ - viagb 0 viagr 0 viagl 0 viagt 0} + viagb 0 viagr 0 viagl 0 viagt 0 doports 1} } proc sky130::sky130_fd_pr__nfet_03v3_nvt_defaults {} { @@ -5347,7 +5552,7 @@ sky130_fd_pr__nfet_g5v0d10v5 sky130_fd_pr__nfet_05v0_nvt \ sky130_fd_pr__nfet_03v3_nvt} \ full_metal 1 viasrc 100 viadrn 100 viagate 100 \ - viagb 0 viagr 0 viagl 0 viagt 0} + viagb 0 viagr 0 viagl 0 viagt 0 doports 1} } proc sky130::sky130_fd_pr__nfet_g5v0d16v0_defaults {} { @@ -5355,7 +5560,7 @@ guard 1 glc 1 grc 1 gtc 1 gbc 1 tbcov 100 rlcov 100 \ topc 1 botc 1 poverlap 0 doverlap 0 lmin 1.050 wmin 5.00 \ full_metal 1 viasrc 100 viadrn 100 viagate 100 \ - viagb 0 viagr 0 viagl 0 viagt 0} + viagb 0 viagr 0 viagl 0 viagt 0 doports 1} } #---------------------------------------------------------------- @@ -5557,6 +5762,12 @@ magic::add_entry viagt "Top guard ring via coverage \[+/-\](%)" $parameters magic::add_entry viagr "Right guard ring via coverage \[+/-\](%)" $parameters magic::add_entry viagl "Left guard ring via coverage \[+/-\](%)" $parameters + + if {[dict exists $parameters addports]} { + magic::add_checkbox doports "Add ports" $parameters + } + + # magic::add_checkbox dummy "Add dummy" $parameters } #---------------------------------------------------------------- @@ -5752,6 +5963,7 @@ set plus_diff_type nsd ;# guard ring diffusion type set plus_contact_type nsc ;# guard ring diffusion contact type set sub_type pwell ;# substrate type + set bulk "" ;# Default no port label # Set a local variable for each parameter (e.g., $l, $w, etc.) foreach key [dict keys $parameters] { @@ -5799,6 +6011,7 @@ popbox pushbox box move s ${hh}um + pushbox box grow n ${hdifft}um box grow s ${hdifft}um box grow e ${hdiffw}um @@ -5809,6 +6022,13 @@ paint $guard_sub_type } popbox + # At guard ring bottom center, place a port if requested + if {$bulk != ""} { + label $bulk c $plus_diff_type + select area label + port make + } + popbox pushbox box move e ${hw}um box grow e ${hdifft}um @@ -6201,6 +6421,7 @@ set eps 0.0005 # Set local default values if they are not in parameters + set doports 0 ;# no port labels by default set diffcov 100 ;# percent coverage of diffusion contact set polycov 100 ;# percent coverage of poly contact set topc 1 ;# draw top poly contact @@ -6216,6 +6437,10 @@ set gshield 0 ;# no metal shield over gate (used for varactors) set drain_proc {} ;# no special procedure to draw the drain + set drain "" + set source "" + set gate "" + # Set a local variable for each parameter (e.g., $l, $w, etc.) foreach key [dict keys $parameters] { set $key [dict get $parameters $key] @@ -6353,6 +6578,7 @@ dict set parameters cdwfull $cdwfull dict set parameters dside $dside dict set parameters sside $sside + dict set parameters doports $doports set cext [sky130::unionbox $cext [eval $drain_proc {$parameters}]] } else { # Drain diffusion contact @@ -6386,6 +6612,11 @@ set cext [sky130::unionbox $cext [sky130::draw_contact 0 ${cdw} \ ${diff_surround} ${metal_surround} ${contact_size}\ ${diff_type} ${diff_contact_type} li vert]] + if {$drain != ""} { + label $drain c $diff_contact_type + select area label + port make + } popbox } @@ -6420,6 +6651,11 @@ set cext [sky130::unionbox $cext [sky130::draw_contact 0 ${cdw} \ ${diff_surround} ${metal_surround} ${contact_size} \ ${diff_type} ${diff_contact_type} li vert]] + if {$source != ""} { + label $source c $diff_contact_type + select area label + port make + } set diffarea $cext popbox # Gate shield (only on varactors) @@ -6474,6 +6710,11 @@ set cext [sky130::unionbox $cext [sky130::draw_contact ${cpl} 0 \ ${poly_surround} ${metal_surround} ${contact_size} \ ${poly_type} ${poly_contact_type} li horz]] + if {$gate != ""} { + label $gate c $poly_contact_type + select area label + port make + } popbox } # Bottom poly contact @@ -6507,6 +6748,11 @@ set cext [sky130::unionbox $cext [sky130::draw_contact ${cpl} 0 \ ${poly_surround} ${metal_surround} ${contact_size} \ ${poly_type} ${poly_contact_type} li horz]] + if {($gate != "") && ($topc == 0)} { + label $gate c $poly_contact_type + select area label + port make + } popbox } @@ -6564,6 +6810,7 @@ set id_surround 0 ;# amount of surround on above type set id2_type "" ;# additional type covering everything set id2_surround 0 ;# amount of surround on above type + set doports 0 ;# no port labels unless requested set set_x_to_guard "" ;# override x distance to guard ring set set_y_to_guard "" ;# override y distance to guard ring @@ -6724,6 +6971,7 @@ } } if {$guard != 0} { + if {$doports} {dict set parameters bulk B} # Draw the guard ring first, as MOS well may interact with guard ring substrate sky130::guard_ring $gx $gy $parameters } @@ -6760,6 +7008,56 @@ set saveeo $evenodd } for {set yp 0} {$yp < $m} {incr yp} { + # Apply rules for source/drain/gate port labeling + if {$doports && ($m == 1)} { + if {$nf == 1} { + dict set parameters drain D + dict set parameters source S + dict set parameters gate G + } else { + if {$doverlap && $evens && ($xp > 0)} { + dict set parameters drain "" + } else { + dict set parameters drain D$xp + } + if {$doverlap && ($evens == 0) && ($xp < $nf-1)} { + dict set parameters source "" + } else { + dict set parameters source S$xp + } + dict set parameters gate G$xp + } + } elseif {$doports} { + if {$nf == 1} { + dict set parameters drain D$yp + dict set parameters source S$yp + if {$poverlap && ($yp == 0)} { + dict set parameters gate G + } elseif {$poverlap} { + dict set parameters gate "" + } else { + dict set parameters gate G$yp + } + } else { + if {$doverlap && $evens && ($xp > 0)} { + dict set parameters drain "" + } else { + dict set parameters drain D${xp}_$yp + } + if {$doverlap && ($evens == 0) && ($xp < $nf-1)} { + dict set parameters source "" + } else { + dict set parameters source S${xp}_$yp + } + if {$poverlap && ($yp == 0)} { + dict set parameters gate G$xp + } elseif {$poverlap} { + dict set parameters gate "" + } else { + dict set parameters gate G${xp}_$yp + } + } + } if {$evens != 0} {box move e ${xoffset}um} sky130::mos_device $parameters if {$evens != 0} {box move w ${xoffset}um} @@ -6948,6 +7246,7 @@ diff_spacing 0.31 \ diff_tap_space 0.38 \ diff_gate_space 0.38 \ + set_x_to_guard 0.535 \ ] set drawdict [dict merge $sky130::ruleset $newdict $parameters] return [sky130::mos_draw $drawdict]