Stats

  • Locked Locked
  • Replies 7
  • Subscribers 92
  • Views 21426
  • 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

Extraction Tech File and LEF-Tech Map file for power grid libray

biju4u90

What are Extraction Tech File and LEF-Tech Map file used for generating power grid library in Encounter Power System? Can I generate these files manually? Can anybody please provide sample Extraction Tech File and LEF-Tech Map files?

Thanks in advance

Parents
  • Kari

    the extraction tech file is not generated manually, you get it from the foundry. It is called "qrcTechFile" and there will be one for each extraction corner like cworst, cbest, typcal, etc.

    the lef-tech map file is easy to create manually. you need to refer to your lef and the .ict file (the human-readable version of the qrcTechFile, which will also come from the foundry).

    it should look something like this: (only a few layers in this example)

    #2nd column is ict name, 4th column is lef name

    metal metal1 lefdef M1
    metal metal2 lefdef M2
    metal metal3 lefdef M3
    via VIA1 lefdef V1
    via VIA2 lefdef V2

    The names between LEF/.ict may be different or the same, but you need this file either way.

Reply
  • Kari

    the extraction tech file is not generated manually, you get it from the foundry. It is called "qrcTechFile" and there will be one for each extraction corner like cworst, cbest, typcal, etc.

    the lef-tech map file is easy to create manually. you need to refer to your lef and the .ict file (the human-readable version of the qrcTechFile, which will also come from the foundry).

    it should look something like this: (only a few layers in this example)

    #2nd column is ict name, 4th column is lef name

    metal metal1 lefdef M1
    metal metal2 lefdef M2
    metal metal3 lefdef M3
    via VIA1 lefdef V1
    via VIA2 lefdef V2

    The names between LEF/.ict may be different or the same, but you need this file either way.

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.