Oh, I see. I have m2 contact already in the cell t...
# magicw
Weston Braun
06/07/2021, 12:42 AMOh, I see. I have m2 contact already in the cell there.
t
Tim Edwards
06/07/2021, 1:40 AMThis should be okay as long as you have an exact overlap between the contact areas of the parent and child cells.
w
Weston Braun
06/07/2021, 1:41 AMOut of curiosity, why do these DRC rules exist? it does not seem to be related to fabrication or anything
Weston Braun
06/07/2021, 1:41 AMDoes it mess up how the vias are placed?
Weston Braun
06/07/2021, 1:41 AMI was getting a similar error for my waffle fet, which is why I flattened the whole thing
t
Tim Edwards
06/07/2021, 1:43 AMThe via cuts are generated only within a cell within the drawn contact layer. So if contact areas are not exactly overlapping between a parent and child cell or between sibling cells, then the contact cuts could be in different places and might be partially overlapping or have spacing violations.