Stats

  • Locked Locked
  • Replies 1
  • Subscribers 126
  • Views 13528
  • 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

Parasitic extraction query

shankarp

 I have my design with layout that goes down to some 20 hiearchies. I want to extract parasitics for my layout in the top level and don't want to extract a module which is down in side 10th hierarchy and attach another view to it for simulation. How do I accomplish this. I have both Assura and Calibre tool for parasitic extraction.

 Thanks in advance

  • Hi shankarp

    Perhaps you can do a hierarchical extraction using QRC. Then create a config view using hierarchical editor and select the desired views for the cells. QRC is the parasitic extractor, Assura is for drc/lvs. We no longer use the old tool Assura rcx for parasitic extraction.

    In short, here are the steps:
    a. Run Assura lvs with ?preserveCells option
    b. Run hierarchical QRC
    c. Create a config view using hierarchy editor

    Best regards
    Quek

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.