Modified the metal5 density pattern generation to make up a small
density deficit caused by the spacing of openlane top-level metal
power routing.
diff --git a/sky130/magic/sky130.tech b/sky130/magic/sky130.tech
index 0458e9e..8e8f468 100644
--- a/sky130/magic/sky130.tech
+++ b/sky130/magic/sky130.tech
@@ -2172,17 +2172,26 @@
#---------------------------------------------------
templayer obstruct_m5 allm5,allpad,obsm5,m5fill,fillblock
grow 3000
- templayer met5fill_gen topbox
- # slots 0 3000 1600 0 3000 1600 1000 100
+ templayer met5fill_coarse topbox
slots 0 5000 1600 0 5000 1600 1000 100
and-not obstruct_m5
and topbox
- # shrink 1495
- # grow 1495
shrink 2495
grow 2495
- layer MET5FILL met5fill_gen
+ templayer obstruct_m5_medium allm5,allpad,obsm5,m5fill,fillblock
+ grow 1400
+ or met5fill_coarse
+ grow 1600
+ templayer met5fill_medium topbox
+ slots 0 3000 1600 0 3000 1600 1000 100
+ and-not obstruct_m5_medium
+ and topbox
+ shrink 1495
+ grow 1495
+
+ layer MET5FILL met5fill_coarse
+ or met5fill_medium
calma 59 28
#endif (METAL5)
