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ERC error in LVS check

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ldhung

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Hello,
I run LVS in Calibre Interactive, but encountered an error relating to ERC error. The error covers the area of PMOS layout (in the attached file).
Please help me how to fix this error.
Thanks
 

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What's the error description? It is shown in Calibre window. You must understand the error first before fixing it.
 

The errors are:
1. ERC1063: 12-Virtex polygon
Flatten (ERRWEL2 not nERRWL2)
ERRWEL2=ERRWEL1 outside ERRWELn
ERRWEL1=nxwell outside pnwell
ERRWELn=nxwell outside RWDMY
2. ERC1163: 18-Virtex Polygon
Flatten(psub outside gpsub)
 

It's not easy to understand the error description w/o layer definition... But pay attention on common issues:
1) connect all gates (as i understand from the layout there are some floating.
2) the second error looks like you've got nmos surrounded by nwell ring w/o psub contact inside.
 

Hi ldhung,

Please go ahead to your command file for LVS check and find details.
Pls search ERC1063 in command file.
Some notes can be found.
If you still have problem, pls post some segments about ERC1063 in the command file.
 

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