Stats

  • Locked Locked
  • Replies 1
  • Subscribers 125
  • Views 3715
  • 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

Missing Instances - inductor (lsps_otc)

Min Zee

Hi,

I am using lsps_otc in my design. I had added guard ring (pring) and connected it to ground.

But when I run LVS it complains "missing instances" to all the lsps_otc.

May I know how to connect lsps_otc to ground?

Parents
  • Andrew Beckett

    What's "lsps_otc"? Presumably it's the name of an inductor in your design (not sure how anyone could know that without you explaining more).

    My guess is that there's no recognition layer for the LVS tool (which I'm guessing is Calibre - which by the way is a Mentor Siemens tool, not a Cadence tool, so not a great question for these forums) and so it's extracting the inductor just as a connection between the two inductor ports.

    You'd need to look at the documentation for your technology setup and the LVS rules to find out if there is a way to identify coils of metal as an inductor rather than just a track.

    Regards,

    Andrew

Reply
  • Andrew Beckett

    What's "lsps_otc"? Presumably it's the name of an inductor in your design (not sure how anyone could know that without you explaining more).

    My guess is that there's no recognition layer for the LVS tool (which I'm guessing is Calibre - which by the way is a Mentor Siemens tool, not a Cadence tool, so not a great question for these forums) and so it's extracting the inductor just as a connection between the two inductor ports.

    You'd need to look at the documentation for your technology setup and the LVS rules to find out if there is a way to identify coils of metal as an inductor rather than just a track.

    Regards,

    Andrew

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.