DFM for 28nm TSMC

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stevenv07

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Hello everyone,

I checked the DFM rule after place and route, many errors happen such as RR:RE:EFP.Mx.S.5, RR:RE:EFP.Mx.S.6, RR:RE:EFP.Mx.S.7, etc. Some rules RR:RE:EFP.VIA1.EN.1, RR:RE:EFP.M1.EN1.1 even occur inside standard cells.
What should I do in this case? How to fix them?

Thanks in advance
Steve.
 

These are the recommend rules, right? You can violate them, with possibly some loss of reliability. If the standard cell designer violates them, you can no longer fix.
 
These are the recommend rules, right? You can violate them, with possibly some loss of reliability. If the standard cell designer violates them, you can no longer fix.

Thanks for your reply.
Do we need to ask TSMC which DFM violations MUST be fixed and which CAN be ignored?

Thanks,
Steve.
 

by default all of them can be ignored. they are not DRCs, they are recommended rules.
 
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