[SOLVED] LVS error in Cadence IC616

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Mudasir Mir

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While doing LVS for my circuit I am getting following errors....Can anyone tell me what are these???
1. ptap must be connected because of same Net/diffNet
2. 'nsd' must be connected because of sameNet/diffNet

Thanks!!!
 

The error messages tell you: The 'ptap' (substrate) and 'nsd' (probably n-well) connections are missing.
 
Dear Sir,
i checked this, but still not working...ok

I tried to workout a simple inverter..but it the above mentioned error is still coming...I am attaching screenshot of layout ...
Please look into it..
Thanks!!!
 

I don't see a substrate connection here. Provide a substrate connection and the issue will be solved.
 

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