1 Reply Latest reply on Aug 4, 2016 1:43 PM by rachel.spykerman

    DRC rule to check Density of a circle

    rachel.spykerman

      Hi,

       

      How would you write a Calibre DRC rule that checks the density of a circle? I've tried the following:

       

      CUP.14_M1 { @ Minimum density of Metal1 area under copper pillar >= 50%

         DENSITY Metal1 < (50/100) INSIDE OF LAYER Pillar RDB CUP.14_M1.rdb

      }

       

      where both Pillar and Metal1 are drawn as circles. However, this will take the bounding box of the layer and this results in incorrect flagging. Any help is appreciated.