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Calibre DRC/ERC error with COPY command for edge layers

Question asked by venkateshwarlu on Jan 30, 2018
Latest reply on Feb 6, 2018 by venkateshwarlu


I am using the COPY command to output all the intermediate derived layers inside a calibre DRC/LVS rule file.

For one of the derived ayer i am getting below error.

line 1605 is t_gate_edges {COPY gate_edges}, the gate_edges is an edge layer. Why COPY command is not outputting edge layer.

I tried "DFM COPY" instead of just "COPY" command and it worked.

If i use DFM COPY instead of COPY is it effect runtime? because I am using this command for around 2500 layers(Means 2500 rule checks)