Corrected the MiM cap rules (some of which were more conservative
than necessary because the via surround and spacing rules had not
been corrected for the amount of surrounding metal already included
in the contact type). Also corrected the Makefile so that it does
not fail on attempting "rm -f" on a directory.
diff --git a/sky130/magic/sky130.tech b/sky130/magic/sky130.tech
index 52d4558..af52099 100644
--- a/sky130/magic/sky130.tech
+++ b/sky130/magic/sky130.tech
@@ -5718,16 +5718,16 @@
width *mimcap 1000 "MiM cap width < %d (capm.1)"
spacing *mimcap *mimcap 840 touching_ok "MiM cap spacing < %d (capm.2a)"
- spacing *mimcap via3/m3 140 touching_illegal \
- "MiM cap spacing to via3 < %d (capm.5)"
- surround *mimcc *mimcap 200 absence_illegal \
- "MiM cap must surround MiM cap contact by %d (capm.4)"
+ spacing *mimcap via3/m3 80 touching_illegal \
+ "MiM cap spacing to via3 < %d (capm.5 - via3.4)"
+ surround *mimcc *mimcap 80 absence_illegal \
+ "MiM cap must surround MiM cap contact by %d (capm.4 - via3.4)"
rect_only *mimcap "MiM cap must be rectangular (capm.7)
surround *mimcap *metal3/m3 140 absence_illegal \
"Metal3 must surround MiM cap by %d (capm.3)"
- spacing via2 *mimcap 140 touching_illegal "MiM cap spacing to via2 < %d (capm.8)"
- spacing via3 *mimcap 140 touching_illegal "MiM cap spacing to via3 < %d (capm.8)"
+ spacing via2 *mimcap 100 touching_illegal \
+ "MiM cap spacing to via2 < %d (capm.8 - via2.4)"
spacing *mimcap *metal3/m3 500 surround_ok \
"MiM cap spacing to unrelated metal3 < %d (capm.11)"
@@ -5746,16 +5746,16 @@
width *mimcap2 1000 "MiM2 cap width < %d (cap2m.1)"
spacing *mimcap2 *mimcap2 840 touching_ok "MiM2 cap spacing < %d (cap2m.2a)"
- spacing *mimcap2 via4/m4 140 touching_illegal \
- "MiM2 cap spacing to via4 < %d (cap2m.5)"
- surround *mim2cc *mimcap2 200 absence_illegal \
- "MiM2 cap must surround MiM cap 2 contact by %d (cap2m.4)"
+ spacing *mimcap2 via4/m4 10 touching_illegal \
+ "MiM2 cap spacing to via4 < %d (cap2m.5 - via4.4)"
+ surround *mim2cc *mimcap2 10 absence_illegal \
+ "MiM2 cap must surround MiM cap 2 contact by %d (cap2m.4 - via4.4)"
rect_only *mimcap2 "MiM2 cap must be rectangular (cap2m.7)
surround *mimcap2 *metal4/m4 140 absence_illegal \
"Metal4 must surround MiM2 cap by %d (cap2m.3)"
- spacing via3 *mimcap2 140 touching_illegal "MiM2 cap spacing to via3 < %d (cap2m.8)"
- spacing via4 *mimcap2 140 touching_illegal "MiM2 cap spacing to via4 < %d (cap2m.8)"
+ spacing via3 *mimcap2 80 touching_illegal \
+ "MiM2 cap spacing to via3 < %d (cap2m.8 - via3.4)"
spacing *mimcap2 *metal4/m4 500 surround_ok \
"MiM2 cap spacing to unrelated metal4 < %d (cap2m.11)"
