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I am trying to use a power ring, special routing, and power stripes for my power routing. I can set up the ring, special routing, and stripes correctly as far as location is concerned. However, I am having spacing violations in Encounter (and after exporting to Cadence using oaout) where it places power vias from the top metal down to the special routing during the power stripe insertion. My power rails are max-sized in the cells based on our cell template, but it adds extra metal around the vias, causing these spacing issues.
It seems to be generating the power vias without checking information in the tech LEF. It seems to be disregarding my VIARULE GENERATE DEFAULT statements.
Is there a specific location I can set the power via rules so that the enclosure of metal 1 is smaller?