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Why is the “antenna rule check” not included in the generic DRC command file for Dracula in UMC?

April 26, 2017Command dracula drc file generic included umc

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Why is the “antenna rule check” not included in the generic DRC command file for Dracula in UMC?

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UMC does not include the “antenna rule check” in the DRACULA command file because it cannot recognize the geometry of diodes connecting to the net of antenna concern. UMC would like to prevent the customer from running into trouble due to Dracula’s limitations when building up the connection information. Cadence has issued an internal PCR (No. 482163) to fix this problem. Antenna check is not supported by Diva because Diva is a tool for cell-level/macro-level verification. What happens if a customer needs the antenna rule check? Ans.UMC antenna check is supported by Calibre/Mentor Graphics, Hercules/Synopsys and has implemented into DRC command files respectively. UMC also provides trial-run service by Calibre. Note: Antenna rule check on Calibre and Hercules does not have this problem.