Corrections in the magic techfile for the PPLUS and NPLUS auto-generated
layers, especially to avoid bridging across butted taps.
diff --git a/sky130/magic/sky130.tech b/sky130/magic/sky130.tech
index 9f584f8..da1ac86 100644
--- a/sky130/magic/sky130.tech
+++ b/sky130/magic/sky130.tech
@@ -782,26 +782,24 @@
grow 110
bloat-or allpactivetap * 125 allnactivenontap 0
bloat-or allpactivenontap * 125 allnactivetap 0
- bridge 380 380
+
+ templayer baseNPLUS ndiffres,mvndiffres
+ grow 125
+ bloat-or allnactivetap * 125 allpactivenontap 0
+ bloat-or allnactivenontap * 125 allpactivetap 0
templayer extendPPLUS basePPLUS,CELLRING
- grow 185
- shrink 185
+ bridge 380 380
+ and-not baseNPLUS
and-not CELLRING
layer PPLUS basePPLUS,extendPPLUS
close 265000
calma 94 20
- templayer baseNPLUS ndiffres,mvndiffres
- grow 125
- bloat-or allnactivetap * 125 allpactivenontap 0
- bloat-or allnactivenontap * 125 allpactivetap 0
- bridge 380 380
-
templayer extendNPLUS baseNPLUS,CELLRING
- grow 185
- shrink 185
+ bridge 380 380
+ and-not basePPLUS
and-not CELLRING
layer NPLUS baseNPLUS,extendNPLUS
@@ -5411,7 +5409,7 @@
spacing via3 *mimcap 140 touching_illegal "MiM cap spacing to via3 < %d (capm.8)"
spacing *mimcap *metal3/m3 500 surround_ok \
"MiM cap spacing to unrelated metal3 < %d (capm.11)"
- cifspacing mim_bottom mim_bottom 120 touching_ok \
+ cifspacing mim_bottom mim_bottom 1200 touching_ok \
"MiM cap bottom plate spacing < %d (capm.2b)"
# MiM cap contact rules (VIA3)
@@ -5436,7 +5434,7 @@
spacing via4 *mimcap2 140 touching_illegal "MiM cap spacing to via4 < %d (cap2m.8)"
spacing *mimcap *metal4/m4 500 surround_ok \
"MiM cap spacing to unrelated metal4 < %d (cap2m.11)"
- cifspacing mim2_bottom mim2_bottom 120 touching_ok \
+ cifspacing mim2_bottom mim2_bottom 1200 touching_ok \
"MiM2 cap bottom plate spacing < %d (cap2m.2b)"
# MiM cap contact rules (VIA4)
