tan.tran

Can someone help with the following Property Error Messages

Discussion created by tan.tran on Apr 22, 2013

This is what I get from Calibre LVS report. Seems like it complained something about the m factor but I could be wrong. Could somebody lighten me up on this subject?

See attached

lvs_error.jpg

 

I also attached the schematic (see below, the transistors that calibre are complaining are MM0/MM3  and MM1/MM2 which are connected to the same input Gates but layout have the Source/Drain sharing in Series Folded Cascade.  One more note, If I turn on Share Equipotential under LVS Options under the Gate Tab, these Property Error are cleaned!!  I'd like to have a better understanding of what's going on.

lvs_error1.jpg

Thanks

Alan

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