Reworked the THKOX (HVI) layer output generation rules; it now
generally does the right thing, and flags problematic areas; a few
such problematic areas are false positives.
diff --git a/sky130/magic/sky130.tech b/sky130/magic/sky130.tech
index 051c7f1..31d93d7 100644
--- a/sky130/magic/sky130.tech
+++ b/sky130/magic/sky130.tech
@@ -962,18 +962,25 @@
# THKOX (HVI) (includes rules NWELL 8-11 and DIFFTAP 14-26)
#----------------------------------------------------------------
- templayer baseTHKOX *mvpsd
- grow-min 470
- or alldiffmv,mvvar
+ templayer thkox_area alldiffmv,mvvar
grow 185
- bloat-all alldiffmv nwell
+ bloat-all alldiffmv nwell
+ grow 345
+ shrink 345
+
+ templayer large_ptap_mv thkox_area
+ shrink 420
+ grow 420
+
+ templayer small_ptap_mv thkox_area
+ and-not large_ptap_mv
+ # (HVI min width rule is 0.6 but CNTM min width rule is 0.84um)
+ grow-min 840
+
+ templayer baseTHKOX thkox_area,small_ptap_mv
bridge 700 600
grow 345
shrink 345
- # (HVI min width rule is 0.6 but CNTM min width rule is 0.84um)
- grow-min 840
- # grow-min 600
- bridge 700 600
templayer extendTHKOX baseTHKOX,CELLRING
grow 345
