Stats

  • Locked Locked
  • Replies 4
  • Subscribers 126
  • Views 14745
  • Members are here 0
This discussion has been locked.
You can no longer post new replies to this discussion. If you have a question you can start a new discussion

Assura LVS for Standard Cell Library with only Abstract View

alperro

Hi everyone, 

I am trying to perform an LVS run with a block which is streamed in from Encounter and a simple custom inverter layout which is drawn by me. My standard cell library contains cells with abstract views, therefore I need to use black box technique. I am using a simple CDL netlist for this purpose and I set related to compare rules on Assura GUI. 

 I managed to match the netlist and layout to certain point. The problem is, in the layout of the block which is imported from Encounter, appears two ground pins which are named as avS** and avC** and prevents the match. I call them ground pins since in the layout VNL netlist they defined so.

 Any idea why this is happening and  how to deal with them? 

(Note: Any decent document related to this kind of flow will be highly appreciated)

Best Regards!

Alper 

Parents
  • alperro

    Hi Quek, 

    The problem was indeed in the substrate connections. First I had tried to add substrate connections to top level layout however it didn't work. It seems that I should have put substrate taps to layout of the placed and routed block additionaly. 

     Thanks a lot!

     Best regards.

    Alper 

Reply
  • alperro

    Hi Quek, 

    The problem was indeed in the substrate connections. First I had tried to add substrate connections to top level layout however it didn't work. It seems that I should have put substrate taps to layout of the placed and routed block additionaly. 

     Thanks a lot!

     Best regards.

    Alper 

Children
No Data

Community Guidelines

The Cadence Design Communities support Cadence users and technologists interacting to exchange ideas, news, technical information, and best practices to solve problems and get the most from Cadence technology. The community is open to everyone, and to provide the most value, we require participants to follow our Community Guidelines that facilitate a quality exchange of ideas and information. By accessing, contributing, using or downloading any materials from the site, you agree to be bound by the full Community Guidelines.