Corrected the PDK units conversion, which was using floor() instead
of round() and resulting in incorrect units. Corrected the sonos
device, which was failing generation if the guard ring was not
selected. Added options to all devices to generate vias on top of
the contacts, since it is especially important in the SkyWater
technology to get above the high-resistance local interconnect layer.
diff --git a/common/pdk.tcl b/common/pdk.tcl
index 04f32a6..489c5f6 100644
--- a/common/pdk.tcl
+++ b/common/pdk.tcl
@@ -14,7 +14,7 @@
set tech1 [lindex $techlambda 1]
set tech0 [lindex $techlambda 0]
set tscale [expr {$tech1 / $tech0}]
- set lambdaout [expr {((int([magic::cif scale output] * 10000)) / 10000.0)}]
+ set lambdaout [expr {((round([magic::cif scale output] * 10000)) / 10000.0)}]
return [expr $micron / ($lambdaout*$tscale) ]
}
@@ -25,7 +25,7 @@
set techlambda [magic::tech lambda]
set tech1 [lindex $techlambda 1] ; set tech0 [lindex $techlambda 0]
set tscale [expr {$tech1 / $tech0}]
- set lambdaout [expr {((int([magic::cif scale output] * 10000)) / 10000.0)}]
+ set lambdaout [expr {((round([magic::cif scale output] * 10000)) / 10000.0)}]
return [expr $lambda * $lambdaout * $tscale ]
}
@@ -33,14 +33,14 @@
# Internal to Microns
#---------------------
proc magic::i2u { value } {
- return [expr {((int([magic::cif scale output] * 10000)) / 10000.0) * $value}]
+ return [expr {((round([magic::cif scale output] * 10000)) / 10000.0) * $value}]
}
#---------------------
# Microns to Internal
#---------------------
proc magic::u2i {value} {
- return [expr {$value / ((int([magic::cif scale output] * 10000)) / 10000.0)}]
+ return [expr {$value / ((round([magic::cif scale output] * 10000)) / 10000.0)}]
}
#---------------------
diff --git a/sky130/magic/sky130.tcl b/sky130/magic/sky130.tcl
index a2a4cb1..981c1d3 100644
--- a/sky130/magic/sky130.tcl
+++ b/sky130/magic/sky130.tcl
@@ -169,9 +169,9 @@
magic::add_toolkit_command $layoutframe "p-diff resistor (1.8V) - 197 Ohm/sq" \
"magic::gencell sky130::sky130_fd_pr__res_generic_pd" pdk2
magic::add_toolkit_command $layoutframe "n-diff resistor (5.0V) - 114 Ohm/sq" \
- "magic::gencell sky130::sky130_fd_pr__mrdn_hv" pdk2
+ "magic::gencell sky130::sky130_fd_pr__res_generic_nd__hv" pdk2
magic::add_toolkit_command $layoutframe "p-diff resistor (5.0V) - 191 Ohm/sq" \
- "magic::gencell sky130::sky130_fd_pr__mrdp_hv" pdk2
+ "magic::gencell sky130::sky130_fd_pr__res_generic_pd__hv" pdk2
magic::add_toolkit_command $layoutframe "poly resistor - 48.2 Ohm/sq" \
"magic::gencell sky130::sky130_fd_pr__res_generic_po" pdk2
@@ -230,7 +230,8 @@
#----------------------------------------------------------------
-proc sky130::mcon_draw {} {
+proc sky130::mcon_draw {{dir default}} {
+ suspendall
set w [magic::i2u [box width]]
set h [magic::i2u [box height]]
if {$w < 0.17} {
@@ -242,19 +243,26 @@
return
}
paint lic
- box grow n 0.05um
- box grow s 0.05um
- paint m1
- box grow n -0.05um
- box grow s -0.05um
- box grow e 0.05um
- box grow w 0.05um
- paint li
- box grow e -0.05um
- box grow w -0.05um
+ pushbox
+ if {($w < $h) || ($dir == "vert")} {
+ box grow e 0.03um
+ box grow w 0.03um
+ box grow n 0.06um
+ box grow s 0.06um
+ paint m1
+ } else {
+ box grow n 0.03um
+ box grow s 0.03um
+ box grow e 0.06um
+ box grow w 0.06um
+ paint m1
+ }
+ popbox
+ resumeall
}
proc sky130::via1_draw {} {
+ suspendall
set w [magic::i2u [box width]]
set h [magic::i2u [box height]]
if {$w < 0.26} {
@@ -276,9 +284,11 @@
paint m1
box grow e -0.05um
box grow w -0.05um
+ resumeall
}
proc sky130::via2_draw {} {
+ suspendall
set w [magic::i2u [box width]]
set h [magic::i2u [box height]]
if {$w < 0.28} {
@@ -300,10 +310,12 @@
paint m3
box grow e -0.05um
box grow w -0.05um
+ resumeall
}
#ifdef METAL5
proc sky130::via3_draw {} {
+ suspendall
set w [magic::i2u [box width]]
set h [magic::i2u [box height]]
if {$w < 0.32} {
@@ -325,9 +337,11 @@
paint m3
box grow e -0.05um
box grow w -0.05um
+ resumeall
}
proc sky130::via4_draw {} {
+ suspendall
set w [magic::i2u [box width]]
set h [magic::i2u [box height]]
if {$w < 1.18} {
@@ -349,10 +363,12 @@
paint m4
box grow e -0.05um
box grow w -0.05um
+ resumeall
}
#endif (METAL5)
proc sky130::subconn_draw {} {
+ suspendall
set w [magic::i2u [box width]]
set h [magic::i2u [box height]]
if {$w < 0.17} {
@@ -367,11 +383,13 @@
box grow c 0.1um
paint nsd
box grow c -0.1um
+ resumeall
}
#----------------------------------------------------------------
proc sky130::mvsubconn_draw {} {
+ suspendall
set w [magic::i2u [box width]]
set h [magic::i2u [box height]]
if {$w < 0.17} {
@@ -386,6 +404,7 @@
box grow c 0.1um
paint mvnsd
box grow c -0.1um
+ resumeall
}
#----------------------------------------------------------------
@@ -647,6 +666,22 @@
if {[dict exists $parameters gbc]} {
magic::add_checkbox gbc "Add bottom guard ring contact" $parameters
}
+ if {[dict exists $parameters viagb]} {
+ magic::add_entry viagb "Bottom guard ring via coverage \[+/-\](%)" $parameters
+ }
+ if {[dict exists $parameters viagt]} {
+ magic::add_entry viagt "Top guard ring via coverage \[+/-\](%)" $parameters
+ }
+ if {[dict exists $parameters viagr]} {
+ magic::add_entry viagr "Right guard ring via coverage \[+/-\](%)" $parameters
+ }
+ if {[dict exists $parameters viagl]} {
+ magic::add_entry viagl "Left guard ring via coverage \[+/-\](%)" $parameters
+ }
+
+ if {[dict exists $parameters vias]} {
+ magic::add_checkbox vias "Add vias over contacts" $parameters
+ }
magic::add_dependency sky130::diode_recalc $device sky130 l w area peri
@@ -711,6 +746,39 @@
puts stderr "Diode length must be >= $lmin"
dict set parameters l $lmin
}
+
+ # Check via coverage for syntax
+ if {$guard == 1} {
+ if {[catch {expr abs($viagb)}]} {
+ puts stderr "Guard ring bottom via coverage must be numeric!"
+ dict set parameters viagb 0
+ } elseif {[expr abs($viagb)] > 100} {
+ puts stderr "Guard ring bottom via coverage can't be more than 100%"
+ dict set parameters viagb 100
+ }
+ if {[catch {expr abs($viagt)}]} {
+ puts stderr "Guard ring top via coverage must be numeric!"
+ dict set parameters viagt 0
+ } elseif {[expr abs($viagt)] > 100} {
+ puts stderr "Guard ring top via coverage can't be more than 100%"
+ dict set parameters viagt 100
+ }
+ if {[catch {expr abs($viagr)}]} {
+ puts stderr "Guard ring right via coverage must be numeric!"
+ dict set parameters viagr 0
+ } elseif {[expr abs($viagr)] > 100} {
+ puts stderr "Guard ring right via coverage can't be more than 100%"
+ dict set parameters viagr 100
+ }
+ if {[catch {expr abs($viagl)}]} {
+ puts stderr "Guard ring left via coverage must be numeric!"
+ dict set parameters viagl 0
+ } elseif {[expr abs($viagl)] > 100} {
+ puts stderr "Guard ring left via coverage can't be more than 100%"
+ dict set parameters viagl 100
+ }
+ }
+
# Calculate area and perimeter from L and W
set area [expr ($l * $w)]
dict set parameters area [magic::float2spice $area]
@@ -736,7 +804,7 @@
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}
+ full_metal 1 vias 1 viagb 0 viagt 0 viagl 0 viagr 0}
}
proc sky130::sky130_fd_pr__diode_pw2nd_05v5_lvt_defaults {} {
@@ -745,7 +813,7 @@
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}
+ full_metal 1 vias 1 viagb 0 viagt 0 viagl 0 viagr 0}
}
proc sky130::sky130_fd_pr__diode_pw2nd_05v5_nvt_defaults {} {
@@ -754,7 +822,7 @@
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}
+ full_metal 1 vias 1 viagb 0 viagt 0 viagl 0 viagr 0}
}
proc sky130::sky130_fd_pr__diode_pw2nd_11v0_defaults {} {
@@ -763,7 +831,7 @@
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}
+ full_metal 1 vias 1 viagb 0 viagt 0 viagl 0 viagr 0}
}
proc sky130::sky130_fd_pr__diode_pd2nw_05v5_defaults {} {
@@ -772,8 +840,8 @@
elc 1 erc 1 etc 1 ebc 1 \
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}
+ 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}
}
proc sky130::sky130_fd_pr__diode_pd2nw_05v5_lvt_defaults {} {
@@ -783,7 +851,7 @@
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}
+ full_metal 1 vias 1 viagb 0 viagt 0 viagl 0 viagr 0}
}
proc sky130::sky130_fd_pr__diode_pd2nw_05v5_hvt_defaults {} {
@@ -793,7 +861,7 @@
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}
+ full_metal 1 vias 1 viagb 0 viagt 0 viagl 0 viagr 0}
}
@@ -804,7 +872,7 @@
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}
+ full_metal 1 vias 1 viagb 0 viagt 0 viagl 0 viagr 0}
}
#----------------------------------------------------------------
@@ -983,6 +1051,20 @@
set w [- $w [* ${dev_surround} 2.0]]
set l [- $l [* ${dev_surround} 2.0]]
+ # Draw via over contact first
+ if {$vias != 0} {
+ pushbox
+ set ch $l
+ if {$ch < $via_size} {set ch $via_size}
+ set cw $w
+ if {$cw < $via_size} {set cw $via_size}
+ box grow n [/ $ch 2]um
+ box grow s [/ $ch 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 ${w} ${l} \
${dev_surround} ${metal_surround} ${contact_size} \
${dev_type} ${dev_contact_type} li ${orient}]]
@@ -2063,7 +2145,8 @@
proc sky130::sky130_fd_pr__res_iso_pw_defaults {} {
return {w 2.650 l 26.50 m 1 nx 1 wmin 2.650 lmin 26.50 \
rho 975 val 4875 dummy 0 dw 0.25 term 1.0 \
- guard 1 endcov 100 full_metal 1}
+ guard 1 endcov 100 full_metal 1 vias 1 \
+ viagb 0 viagt 0 viagl 0 viagr 0}
}
#----------------------------------------------------------------
@@ -2076,7 +2159,8 @@
rho 48.2 val 241 dummy 0 dw 0.0 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}
+ full_metal 1 vias 1 \
+ viagb 0 viagt 0 viagl 0 viagr 0}
}
# "term" is rho * 0.06, the distance between xpc edge and CONT.
@@ -2087,7 +2171,8 @@
compatible {sky130_fd_pr__res_high_po_0p35 \
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} \
- full_metal 1 wmax 0.350}
+ full_metal 1 wmax 0.350 vias 1 \
+ viagb 0 viagt 0 viagl 0 viagr 0}
}
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 \
@@ -2096,7 +2181,8 @@
compatible {sky130_fd_pr__res_high_po_0p35 \
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} \
- full_metal 1 wmax 0.690}
+ full_metal 1 wmax 0.690 vias 1 \
+ viagb 0 viagt 0 viagl 0 viagr 0}
}
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 \
@@ -2105,7 +2191,8 @@
compatible {sky130_fd_pr__res_high_po_0p35 \
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} \
- full_metal 1 wmax 1.410}
+ full_metal 1 wmax 1.410 vias 1 \
+ viagb 0 viagt 0 viagl 0 viagr 0}
}
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 \
@@ -2114,7 +2201,8 @@
compatible {sky130_fd_pr__res_high_po_0p35 \
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} \
- full_metal 1 wmax 2.850}
+ full_metal 1 wmax 2.850 vias 1 \
+ viagb 0 viagt 0 viagl 0 viagr 0}
}
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 \
@@ -2123,7 +2211,8 @@
compatible {sky130_fd_pr__res_high_po_0p35 \
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} \
- full_metal 1 wmax 5.730}
+ full_metal 1 wmax 5.730 vias 1 \
+ viagb 0 viagt 0 viagl 0 viagr 0}
}
# "term" is rho * 0.06, the distance between xpc edge and CONT.
@@ -2135,7 +2224,8 @@
compatible {sky130_fd_pr__res_xhigh_po_0p35 \
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} \
- full_metal 1}
+ full_metal 1 vias 1 \
+ viagb 0 viagt 0 viagl 0 viagr 0}
}
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 \
@@ -2145,7 +2235,8 @@
compatible {sky130_fd_pr__res_xhigh_po_0p35 \
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} \
- full_metal 1}
+ full_metal 1 vias 1 \
+ viagb 0 viagt 0 viagl 0 viagr 0}
}
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 \
@@ -2155,7 +2246,8 @@
compatible {sky130_fd_pr__res_xhigh_po_0p35 \
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} \
- full_metal 1}
+ full_metal 1 vias 1 \
+ viagb 0 viagt 0 viagl 0 viagr 0}
}
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 \
@@ -2165,7 +2257,8 @@
compatible {sky130_fd_pr__res_xhigh_po_0p35 \
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} \
- full_metal 1}
+ full_metal 1 vias 1 \
+ viagb 0 viagt 0 viagl 0 viagr 0}
}
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 \
@@ -2175,7 +2268,8 @@
compatible {sky130_fd_pr__res_xhigh_po_0p35 \
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} \
- full_metal 1}
+ full_metal 1 vias 1 \
+ viagb 0 viagt 0 viagl 0 viagr 0}
}
#----------------------------------------------------------------
@@ -2188,15 +2282,17 @@
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}
+ full_metal 1 vias 1 \
+ viagb 0 viagt 0 viagl 0 viagr 0}
}
-proc sky130::sky130_fd_pr__mrdn_hv_defaults {} {
+proc sky130::sky130_fd_pr__res_generic_nd__hv_defaults {} {
return {w 0.420 l 2.100 m 1 nx 1 wmin 0.42 lmin 2.10 \
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}
+ full_metal 1 vias 1 \
+ viagb 0 viagt 0 viagl 0 viagr 0}
}
#----------------------------------------------------------------
@@ -2209,15 +2305,17 @@
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}
+ full_metal 1 vias 1 \
+ viagb 0 viagt 0 viagl 0 viagr 0}
}
-proc sky130::sky130_fd_pr__mrdp_hv_defaults {} {
+proc sky130::sky130_fd_pr__res_generic_pd__hv_defaults {} {
return {w 0.420 l 2.100 m 1 nx 1 wmin 0.42 lmin 2.10 \
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}
+ full_metal 1 vias 1 \
+ viagb 0 viagt 0 viagl 0 viagr 0}
}
#----------------------------------------------------------------
@@ -2353,11 +2451,11 @@
return [sky130::res_convert $parameters]
}
-proc sky130::sky130_fd_pr__mrdn_hv_convert {parameters} {
+proc sky130::sky130_fd_pr__res_generic_nd__hv_convert {parameters} {
return [sky130::res_convert $parameters]
}
-proc sky130::sky130_fd_pr__mrdp_hv_convert {parameters} {
+proc sky130::sky130_fd_pr__res_generic_pd__hv_convert {parameters} {
return [sky130::res_convert $parameters]
}
@@ -2442,6 +2540,15 @@
if {[dict exists $parameters gbc]} {
magic::add_checkbox gbc "Add bottom guard ring contact" $parameters
}
+
+ magic::add_entry viagb "Bottom guard ring via coverage \[+/-\](%)" $parameters
+ 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 vias]} {
+ magic::add_checkbox vias "Add vias over contacts" $parameters
}
if {[dict exists $parameters snake]} {
@@ -2501,12 +2608,12 @@
sky130::res_dialog sky130_fd_pr__res_generic_pd $parameters
}
-proc sky130::sky130_fd_pr__mrdn_hv_dialog {parameters} {
- sky130::res_dialog sky130_fd_pr__mrdn_hv $parameters
+proc sky130::sky130_fd_pr__res_generic_nd__hv_dialog {parameters} {
+ sky130::res_dialog sky130_fd_pr__res_generic_nd__hv $parameters
}
-proc sky130::sky130_fd_pr__mrdp_hv_dialog {parameters} {
- sky130::res_dialog sky130_fd_pr__mrdp_hv $parameters
+proc sky130::sky130_fd_pr__res_generic_pd__hv_dialog {parameters} {
+ sky130::res_dialog sky130_fd_pr__res_generic_pd__hv $parameters
}
proc sky130::sky130_fd_pr__res_generic_l1_dialog {parameters} {
@@ -2548,6 +2655,7 @@
set well_res_overlap 0 ;# not a well resistor
set end_contact_type "" ;# no contacts for metal resistors
set end_overlap_cont 0 ;# additional end overlap on sides
+ set vias 0 ;# add vias over contacts
set res_idtype none
# Set a local variable for each parameter (e.g., $l, $w, etc.)
@@ -2644,6 +2752,20 @@
popbox
if {${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 [/ $via_size 2]um
+ box grow s [- $ch [/ $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} ${end_contact_type} li horz]]
@@ -2666,6 +2788,20 @@
popbox
if {${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::unionbox $cext [sky130::draw_contact ${cpl} 0 \
${end_surround} ${metal_surround} ${end_contact_size} \
${end_type} ${end_contact_type} li horz]]
@@ -3343,7 +3479,7 @@
#----------------------------------------------------------------
-proc sky130::sky130_fd_pr__mrdn_hv_draw {parameters} {
+proc sky130::sky130_fd_pr__res_generic_nd__hv_draw {parameters} {
# Set a local variable for each rule in ruleset
foreach key [dict keys $sky130::ruleset] {
@@ -3399,7 +3535,7 @@
#----------------------------------------------------------------
-proc sky130::sky130_fd_pr__mrdp_hv_draw {parameters} {
+proc sky130::sky130_fd_pr__res_generic_pd__hv_draw {parameters} {
# Set a local variable for each rule in ruleset
foreach key [dict keys $sky130::ruleset] {
@@ -3630,6 +3766,7 @@
# Set a local variable for each parameter (e.g., $l, $w, etc.)
set snake 0
+ set guard 0
set sterm 0.0
set caplen 0
set wmax 0
@@ -3706,6 +3843,38 @@
}
}
+ # Check via coverage for syntax
+ if {$guard == 1} {
+ if {[catch {expr abs($viagb)}]} {
+ puts stderr "Guard ring bottom via coverage must be numeric!"
+ dict set parameters viagb 0
+ } elseif {[expr abs($viagb)] > 100} {
+ puts stderr "Guard ring bottom via coverage can't be more than 100%"
+ dict set parameters viagb 100
+ }
+ if {[catch {expr abs($viagt)}]} {
+ puts stderr "Guard ring top via coverage must be numeric!"
+ dict set parameters viagt 0
+ } elseif {[expr abs($viagt)] > 100} {
+ puts stderr "Guard ring top via coverage can't be more than 100%"
+ dict set parameters viagt 100
+ }
+ if {[catch {expr abs($viagr)}]} {
+ puts stderr "Guard ring right via coverage must be numeric!"
+ dict set parameters viagr 0
+ } elseif {[expr abs($viagr)] > 100} {
+ puts stderr "Guard ring right via coverage can't be more than 100%"
+ dict set parameters viagr 100
+ }
+ if {[catch {expr abs($viagl)}]} {
+ puts stderr "Guard ring left via coverage must be numeric!"
+ dict set parameters viagl 0
+ } elseif {[expr abs($viagl)] > 100} {
+ puts stderr "Guard ring left via coverage can't be more than 100%"
+ dict set parameters viagl 100
+ }
+ }
+
# 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
@@ -3799,12 +3968,12 @@
return [sky130::res_check sky130_fd_pr__res_generic_pd $parameters]
}
-proc sky130::sky130_fd_pr__mrdn_hv_check {parameters} {
- return [sky130::res_check sky130_fd_pr__mrdn_hv $parameters]
+proc sky130::sky130_fd_pr__res_generic_nd__hv_check {parameters} {
+ return [sky130::res_check sky130_fd_pr__res_generic_nd__hv $parameters]
}
-proc sky130::sky130_fd_pr__mrdp_hv_check {parameters} {
- return [sky130::res_check sky130_fd_pr__mrdp_hv $parameters]
+proc sky130::sky130_fd_pr__res_generic_pd__hv_check {parameters} {
+ return [sky130::res_check sky130_fd_pr__res_generic_pd__hv $parameters]
}
proc sky130::sky130_fd_pr__res_generic_l1_check {parameters} {
@@ -3903,7 +4072,9 @@
topc 1 botc 1 poverlap 0 doverlap 1 lmin 0.15 wmin 0.42 \
compatible {sky130_fd_pr__nfet_01v8 sky130_fd_pr__nfet_01v8_lvt \
sky130_fd_bs_flash__special_sonosfet_star \
- sky130_fd_pr__nfet_g5v0d10v5 sky130_fd_pr__nfet_05v0_nvt} full_metal 1}
+ sky130_fd_pr__nfet_g5v0d10v5 sky130_fd_pr__nfet_05v0_nvt} \
+ full_metal 1 viasrc 100 viadrn 100 viagate 100 \
+ viagb 0 viagr 0 viagl 0 viagt 0}
}
proc sky130::sky130_fd_pr__nfet_01v8_lvt_defaults {} {
@@ -3912,7 +4083,9 @@
topc 1 botc 1 poverlap 0 doverlap 1 lmin 0.15 wmin 0.42 \
compatible {sky130_fd_pr__nfet_01v8 sky130_fd_pr__nfet_01v8_lvt \
sky130_fd_bs_flash__special_sonosfet_star \
- sky130_fd_pr__nfet_g5v0d10v5 sky130_fd_pr__nfet_05v0_nvt} full_metal 1}
+ sky130_fd_pr__nfet_g5v0d10v5 sky130_fd_pr__nfet_05v0_nvt} \
+ full_metal 1 viasrc 100 viadrn 100 viagate 100 \
+ viagb 0 viagr 0 viagl 0 viagt 0}
}
proc sky130::sky130_fd_bs_flash__special_sonosfet_star_defaults {} {
@@ -3921,7 +4094,9 @@
topc 1 botc 1 poverlap 0 doverlap 1 lmin 0.15 wmin 0.42 \
compatible {sky130_fd_pr__nfet_01v8 sky130_fd_pr__nfet_01v8_lvt \
sky130_fd_bs_flash__special_sonosfet_star \
- sky130_fd_pr__nfet_g5v0d10v5 sky130_fd_pr__nfet_05v0_nvt} full_metal 1}
+ sky130_fd_pr__nfet_g5v0d10v5 sky130_fd_pr__nfet_05v0_nvt} \
+ full_metal 1 viasrc 100 viadrn 100 viagate 100 \
+ viagb 0 viagr 0 viagl 0 viagt 0}
}
proc sky130::sky130_fd_pr__nfet_g5v0d10v5_defaults {} {
@@ -3930,7 +4105,9 @@
topc 1 botc 1 poverlap 0 doverlap 1 lmin 0.50 wmin 0.42 \
compatible {sky130_fd_pr__nfet_01v8 sky130_fd_pr__nfet_01v8_lvt \
sky130_fd_bs_flash__special_sonosfet_star \
- sky130_fd_pr__nfet_g5v0d10v5 sky130_fd_pr__nfet_05v0_nvt} full_metal 1}
+ sky130_fd_pr__nfet_g5v0d10v5 sky130_fd_pr__nfet_05v0_nvt} \
+ full_metal 1 viasrc 100 viadrn 100 viagate 100 \
+ viagb 0 viagr 0 viagl 0 viagt 0}
}
proc sky130::sky130_fd_pr__nfet_05v0_nvt_defaults {} {
@@ -3939,7 +4116,9 @@
topc 1 botc 1 poverlap 0 doverlap 1 lmin 0.50 wmin 0.42 \
compatible {sky130_fd_pr__nfet_01v8 sky130_fd_pr__nfet_01v8_lvt \
sky130_fd_bs_flash__special_sonosfet_star \
- sky130_fd_pr__nfet_g5v0d10v5 sky130_fd_pr__nfet_05v0_nvt} full_metal 1}
+ sky130_fd_pr__nfet_g5v0d10v5 sky130_fd_pr__nfet_05v0_nvt} \
+ full_metal 1 viasrc 100 viadrn 100 viagate 100 \
+ viagb 0 viagr 0 viagl 0 viagt 0}
}
#----------------------------------------------------------------
@@ -3952,7 +4131,9 @@
guard 1 glc 1 grc 1 gtc 1 gbc 1 tbcov 100 rlcov 100 \
topc 1 botc 1 poverlap 0 doverlap 1 lmin 0.18 wmin 1.0 \
compatible {sky130_fd_pr__cap_var_lvt \
- sky130_fd_pr__cap_var_hvt sky130_fd_pr__cap_var} full_metal 1}
+ sky130_fd_pr__cap_var_hvt sky130_fd_pr__cap_var} \
+ full_metal 1 viasrc 100 viadrn 100 viagate 100 \
+ viagb 0 viagr 0 viagl 0 viagt 0}
}
proc sky130::sky130_fd_pr__cap_var_hvt_defaults {} {
@@ -3960,7 +4141,9 @@
guard 1 glc 1 grc 1 gtc 1 gbc 1 tbcov 100 rlcov 100 \
topc 1 botc 1 poverlap 0 doverlap 1 lmin 0.18 wmin 1.0 \
compatible {sky130_fd_pr__cap_var_lvt \
- sky130_fd_pr__cap_var_hvt sky130_fd_pr__cap_var} full_metal 1}
+ sky130_fd_pr__cap_var_hvt sky130_fd_pr__cap_var} \
+ full_metal 1 viasrc 100 viadrn 100 viagate 100 \
+ viagb 0 viagr 0 viagl 0 viagt 0}
}
proc sky130::sky130_fd_pr__cap_var_defaults {} {
@@ -3968,7 +4151,9 @@
guard 1 glc 1 grc 1 gtc 1 gbc 1 tbcov 100 rlcov 100 \
topc 1 botc 1 poverlap 0 doverlap 1 lmin 0.50 wmin 1.0 \
compatible {sky130_fd_pr__cap_var_lvt \
- sky130_fd_pr__cap_var_hvt sky130_fd_pr__cap_var} full_metal 1}
+ sky130_fd_pr__cap_var_hvt sky130_fd_pr__cap_var} \
+ full_metal 1 viasrc 100 viadrn 100 viagate 100 \
+ viagb 0 viagr 0 viagl 0 viagt 0}
}
#----------------------------------------------------------------
@@ -4104,6 +4289,14 @@
if {[dict exists $parameters gtc]} {
magic::add_checkbox gtc "Add top guard ring contact" $parameters
}
+
+ magic::add_entry viasrc "Source via coverage \[+/-\](%)" $parameters
+ magic::add_entry viadrn "Drain via coverage \[+/-\](%)" $parameters
+ magic::add_entry viagate "Gate via coverage \[+/-\](%)" $parameters
+ magic::add_entry viagb "Bottom guard ring via coverage \[+/-\](%)" $parameters
+ 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 \[+/-\](%)" $parameters
}
#----------------------------------------------------------------
@@ -4277,6 +4470,10 @@
set glc 1 ;# Draw left side contact
set gtc 1 ;# Draw right side contact
set gbc 1 ;# Draw left side contact
+ set viagb 0 ;# Draw bottom side via
+ set viagt 0 ;# Draw top side via
+ set viagr 0 ;# Draw right side via
+ set viagl 0 ;# Draw left side via
set full_metal 1 ;# Draw full (continuous) metal ring
set guard_sub_type pwell ;# substrate type under guard ring
set guard_sub_surround 0 ;# substrate type surrounds guard ring
@@ -4446,6 +4643,96 @@
}
}
+ # Vias
+ if {$viagb != 0} {
+ pushbox
+ set ch $via_size
+ set cw [* [- $gw $via_size] [/ [expr abs($viagb)] 100.0]]
+ if {$cw < $via_size} {set cw $via_size}
+ box move s ${hh}um
+ box grow n [/ $ch 2]um
+ box grow s [/ $ch 2]um
+ set anchor [string index $viagb 0]
+ if {$anchor == "+"} {
+ box move w [/ [- $gw $via_size] 2]um
+ box grow e ${cw}um
+ } elseif {$anchor == "-"} {
+ box move e [/ [- $gw $via_size] 2]um
+ box grow w ${cw}um
+ } else {
+ box grow e [/ $cw 2]um
+ box grow w [/ $cw 2]um
+ }
+ sky130::mcon_draw horz
+ popbox
+ }
+ if {$viagt != 0} {
+ pushbox
+ set ch $via_size
+ set cw [* [- $gw $via_size] [/ [expr abs($viagt)] 100.0]]
+ if {$cw < $via_size} {set cw $via_size}
+ box move n ${hh}um
+ box grow n [/ $ch 2]um
+ box grow s [/ $ch 2]um
+ set anchor [string index $viagt 0]
+ if {$anchor == "+"} {
+ box move w [/ [- $gw $via_size] 2]um
+ box grow e ${cw}um
+ } elseif {$anchor == "-"} {
+ box move e [/ [- $gw $via_size] 2]um
+ box grow w ${cw}um
+ } else {
+ box grow e [/ $cw 2]um
+ box grow w [/ $cw 2]um
+ }
+ sky130::mcon_draw horz
+ popbox
+ }
+ if {$viagr != 0} {
+ pushbox
+ set ch [* [- $gh $via_size] [/ [expr abs($viagr)] 100.0]]
+ if {$ch < $via_size} {set ch $via_size}
+ set cw $via_size
+ box move e ${hw}um
+ box grow e [/ $cw 2]um
+ box grow w [/ $cw 2]um
+ set anchor [string index $viagr 0]
+ if {$anchor == "+"} {
+ box move s [/ [- $gh $via_size]]um
+ box grow n ${ch}um
+ } elseif {$anchor == "-"} {
+ box move n [/ [- $gh $via_size]]um
+ box grow s ${ch}um
+ } else {
+ box grow n [/ $ch 2]um
+ box grow s [/ $ch 2]um
+ }
+ sky130::mcon_draw vert
+ popbox
+ }
+ if {$viagl != 0} {
+ pushbox
+ set ch [* [- $gh $via_size] [/ [expr abs($viagl)] 100.0]]
+ if {$ch < $via_size} {set ch $via_size}
+ set cw $via_size
+ box move w ${hw}um
+ box grow e [/ $cw 2]um
+ box grow w [/ $cw 2]um
+ set anchor [string index $viagl 0]
+ if {$anchor == "+"} {
+ box move s [/ [- $gh $via_size]]um
+ box grow h ${ch}um
+ } elseif {$anchor == "-"} {
+ box move n [/ [- $gh $via_size]]um
+ box grow s ${ch}um
+ } else {
+ box grow n [/ $ch 2]um
+ box grow s [/ $ch 2]um
+ }
+ sky130::mcon_draw vert
+ popbox
+ }
+
pushbox
box grow e ${hw}um
box grow w ${hw}um
@@ -4478,8 +4765,12 @@
set polycov 100 ;# percent coverage of poly contact
set topc 1 ;# draw top poly contact
set botc 1 ;# draw bottom poly contact
- set evenodd 1 ;# even or odd numbered device finger, in X
+ set viasrc 100 ;# draw source vias
+ set viadrn 100 ;# draw drain vias
+ set viagate 100 ;# draw gate vias
+ set evens 1 ;# even or odd numbered device finger, in X
set dev_sub_type "" ;# device substrate type (if different from guard ring)
+ set dev_sub_dist 0 ;# device substrate distance (if nondefault dev_sub_type)
set min_effl 0 ;# gate length below which finger pitch must be stretched
set diff_overlap_cont 0 ;# extra overlap of end contact by diffusion
@@ -4592,6 +4883,10 @@
set cdw [- ${w} [* ${tsurround} 2]] ;# diff contact height
set cpl [- ${l} [* ${poly_surround} 2]] ;# poly contact width
+ # Save the full diffusion (source/drain) and poly (gate) lengths
+ set cdwfull $cdw
+ set cplfull $cpl
+
# Reduce by coverage percentage. NOTE: If overlapping multiple devices,
# keep maximum poly contact coverage.
@@ -4604,6 +4899,30 @@
pushbox
box move e ${he}um
box move e ${gate_to_diffcont}um
+
+ # Source via on top of contact
+ if {$evens == 1} {set viatype $viasrc} else {set viatype $viadrn}
+ if {$viatype != 0} {
+ pushbox
+ set cw $via_size
+ set ch [* $cdwfull [/ [expr abs($viatype)] 100.0]]
+ if {$ch < $via_size} {set ch $via_size}
+ box grow e [/ $cw 2]um
+ box grow w [/ $cw 2]um
+ set anchor [string index $viatype 0]
+ if {$anchor == "+"} {
+ box move s [/ [- $cdwfull $via_size] 2]um
+ box grow n ${ch}um
+ } elseif {$anchor == "-"} {
+ box move n [/ [- $cdwfull $via_size] 2]um
+ box grow s ${ch}um
+ } else {
+ box grow n [/ $ch 2]um
+ box grow s [/ $ch 2]um
+ }
+ sky130::mcon_draw vert
+ popbox
+ }
set cext [sky130::unionbox $cext [sky130::draw_contact 0 ${cdw} \
${diff_surround} ${metal_surround} ${contact_size}\
${diff_type} ${diff_contact_type} li vert]]
@@ -4612,6 +4931,30 @@
pushbox
box move w ${he}um
box move w ${gate_to_diffcont}um
+
+ # Drain via on top of contact
+ if {$evens == 1} {set viatype $viadrn} else {set viatype $viasrc}
+ if {$viatype != 0} {
+ pushbox
+ set cw $via_size
+ set ch [* $cdwfull [/ [expr abs($viatype)] 100.0]]
+ if {$ch < $via_size} {set ch $via_size}
+ box grow e [/ $cw 2]um
+ box grow w [/ $cw 2]um
+ set anchor [string index $viatype 0]
+ if {$anchor == "+"} {
+ box move s [/ [- $cdwfull $via_size] 2]um
+ box grow n ${ch}um
+ } elseif {$anchor == "-"} {
+ box move n [/ [- $cdwfull $via_size] 2]um
+ box grow s ${ch}um
+ } else {
+ box grow n [/ $ch 2]um
+ box grow s [/ $ch 2]um
+ }
+ sky130::mcon_draw vert
+ popbox
+ }
set cext [sky130::unionbox $cext [sky130::draw_contact 0 ${cdw} \
${diff_surround} ${metal_surround} ${contact_size} \
${diff_type} ${diff_contact_type} li vert]]
@@ -4622,6 +4965,29 @@
pushbox
box move n ${hw}um
box move n ${gate_to_polycont}um
+
+ # Gate via on top of contact
+ if {$viagate != 0} {
+ pushbox
+ set ch $via_size
+ set cw [* $cplfull [/ [expr abs($viagate)] 100.0]]
+ if {$cw < $via_size} {set cw $via_size}
+ box grow n [/ $ch 2]um
+ box grow s [/ $ch 2]um
+ set anchor [string index $viagate 0]
+ if {$anchor == "+"} {
+ box move w [/ [- $cplfull $via_size] 2]um
+ box grow e ${cw}um
+ } elseif {$anchor == "-"} {
+ box move e [/ [- $cplfull $via_size] 2]um
+ box grow w ${cw}um
+ } else {
+ box grow e [/ $cw 2]um
+ box grow w [/ $cw 2]um
+ }
+ sky130::mcon_draw horz
+ popbox
+ }
set cext [sky130::unionbox $cext [sky130::draw_contact ${cpl} 0 \
${poly_surround} ${metal_surround} ${contact_size} \
${poly_type} ${poly_contact_type} li horz]]
@@ -4632,6 +4998,29 @@
pushbox
box move s ${hw}um
box move s ${gate_to_polycont}um
+
+ # Gate via on top of contact
+ if {$viagate != 0} {
+ pushbox
+ set ch $via_size
+ set cw [* $cplfull [/ [expr abs($viagate)] 100.0]]
+ if {$cw < $via_size} {set cw $via_size}
+ box grow n [/ $ch 2]um
+ box grow s [/ $ch 2]um
+ set anchor [string index $viagate 0]
+ if {$anchor == "+"} {
+ box move w [/ [- $cplfull $via_size] 2]um
+ box grow e ${cw}um
+ } elseif {$anchor == "-"} {
+ box move e [/ [- $cplfull $via_size] 2]um
+ box grow w ${cw}um
+ } else {
+ box grow e [/ $cw 2]um
+ box grow w [/ $cw 2]um
+ }
+ sky130::mcon_draw horz
+ popbox
+ }
set cext [sky130::unionbox $cext [sky130::draw_contact ${cpl} 0 \
${poly_surround} ${metal_surround} ${contact_size} \
${poly_type} ${poly_contact_type} li horz]]
@@ -4663,7 +5052,9 @@
box grow e ${sub_surround}um
box grow w ${sub_surround}um
paint ${dev_sub_type}
- set cext [sky130::unionbox $cext [sky130::getbox]]
+ if {$dev_sub_dist > 0} {
+ set cext [sky130::unionbox $cext [sky130::getbox]]
+ }
# puts stdout "Diagnostic: bounding box is $cext"
}
@@ -4719,6 +5110,7 @@
# If dx < (poly contact space + poly contact width), then there is not
# enough room for a row of contacts, so force alternating contacts
+ set evens 1
if {$nf > 1 && $l < $min_allc} {
set intc 1
set evenodd 1
@@ -4796,8 +5188,8 @@
}
}
- if {$guard != 0} {
- # Calculate guard ring size (measured to contact center)
+ # Calculate guard ring size (measured to contact center)
+ if {($guard != 0) || (${id_type} != "")} {
if {($dev_sub_dist > 0) && ([+ $dev_sub_dist $sub_surround] > $diff_tap_space)} {
set gx [+ $corex [* 2.0 [+ $dev_sub_dist $diff_surround]] $contact_size]
} else {
@@ -4827,7 +5219,8 @@
set corelly [- $corelly [/ $sdiff 2.0]]
}
}
-
+ }
+ if {$guard != 0} {
# Draw the guard ring first, as MOS well may interact with guard ring substrate
sky130::guard_ring $gx $gy $parameters
}
@@ -4849,6 +5242,8 @@
box move w ${corellx}um
box move s ${corelly}um
for {set xp 0} {$xp < $nf} {incr xp} {
+ dict set parameters evens $evens
+ set evens [- 1 $evens]
pushbox
if {$intc == 1} {
set evenodd [- 1 $evenodd]
@@ -5177,10 +5572,12 @@
if {[catch {expr abs($diffcov)}]} {
puts stderr "diffcov must be numeric!"
set diffcov 100
+ dict set parameters diffcov $diffcov
}
if {[catch {expr abs($polycov)}]} {
puts stderr "polycov must be numeric!"
set polycov 100
+ dict set parameters polycov $polycov
}
if {$l < $lmin} {
@@ -5214,6 +5611,56 @@
dict set parameters polycov 100
}
+ if {[catch {expr abs($viasrc)}]} {
+ puts stderr "Source via coverage must be numeric!"
+ dict set parameters viasrc 100
+ } elseif {[expr abs($viasrc)] > 100} {
+ puts stderr "Source via coverage can't be more than 100%"
+ dict set parameters viasrc 100
+ }
+ if {[catch {expr abs($viadrn)}]} {
+ puts stderr "Drain via coverage must be numeric!"
+ dict set parameters viadrn 100
+ } elseif {[expr abs($viadrn)] > 100} {
+ puts stderr "Drain via coverage can't be more than 100%"
+ dict set parameters viadrn 100
+ }
+ if {[catch {expr abs($viagate)}]} {
+ puts stderr "Gate via coverage must be numeric!"
+ dict set parameters viagate 100
+ } elseif {[expr abs($viagate)] > 100} {
+ puts stderr "Gate via coverage can't be more than 100%"
+ dict set parameters viagate 100
+ }
+ if {[catch {expr abs($viagb)}]} {
+ puts stderr "Guard ring bottom via coverage must be numeric!"
+ dict set parameters viagb 0
+ } elseif {[expr abs($viagb)] > 100} {
+ puts stderr "Guard ring bottom via coverage can't be more than 100%"
+ dict set parameters viagb 100
+ }
+ if {[catch {expr abs($viagt)}]} {
+ puts stderr "Guard ring top via coverage must be numeric!"
+ dict set parameters viagt 0
+ } elseif {[expr abs($viagt)] > 100} {
+ puts stderr "Guard ring top via coverage can't be more than 100%"
+ dict set parameters viagt 100
+ }
+ if {[catch {expr abs($viagr)}]} {
+ puts stderr "Guard ring right via coverage must be numeric!"
+ dict set parameters viagr 0
+ } elseif {[expr abs($viagr)] > 100} {
+ puts stderr "Guard ring right via coverage can't be more than 100%"
+ dict set parameters viagr 100
+ }
+ if {[catch {expr abs($viagl)}]} {
+ puts stderr "Guard ring left via coverage must be numeric!"
+ dict set parameters viagl 0
+ } elseif {[expr abs($viagl)] > 100} {
+ puts stderr "Guard ring left via coverage can't be more than 100%"
+ dict set parameters viagl 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
