Stats

  • Locked Locked
  • Replies 3
  • Subscribers 91
  • Views 3277
  • 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

VTH_P/VTH_N implant spacinfg rule violation prevention/fix

DavidBD

 Hello,

I and encounting a DRC rule violation related to VTH_N/VTH_P implant spacing rule.

I found that SOC have special placement flag to handle this rule  :

setPlaceMode -honorImplantSpacing true

When I use it I got the following error :

 **WARN: (SOCSP-300):    No layer1-to-layer2 spacing rule specified for any Implant
        layer in-use. Ignoring  'honorImplantSpacing' option.

Attched is the related LEFrule :

LAYER VTH_P
    TYPE IMPLANT ;
    WIDTH 0.18 ;
    SPACING 0.18 ;
END VTH_P

LAYER VTH_N
    TYPE IMPLANT ;
    WIDTH 0.18 ;
    SPACING 0.18 ;
END VTH_N

Can you please advice if SOC can prevent this violation ?

Thanks,

David

 

Parents

  • Hi David,

    Here's what the current recommendation is:

    After you have run verifyGeometry to flag these violations, rerun your addFiller command (with all the same settings you had before), but this time add the -fixDRC switch. This will attempt to fix any filler-related DRC problems by replacing the current fill cells with others.

    It's possible that addFiller will not be able to find a drc-clean solution in every spot and you will have a few gaps that need fixing by hand.

    Let us know how this works for you!

    - Kari

Reply

  • Hi David,

    Here's what the current recommendation is:

    After you have run verifyGeometry to flag these violations, rerun your addFiller command (with all the same settings you had before), but this time add the -fixDRC switch. This will attempt to fix any filler-related DRC problems by replacing the current fill cells with others.

    It's possible that addFiller will not be able to find a drc-clean solution in every spot and you will have a few gaps that need fixing by hand.

    Let us know how this works for you!

    - Kari

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.