• Skip to main content
  • Skip to search
  • Skip to footer
Cadence Home
  • This search text may be transcribed, used, stored, or accessed by our third-party service providers per our Cookie Policy and Privacy Policy.

  1. Community Forums
  2. Custom IC Design
  3. dataAudit error in ASSURA LVS check..

Stats

  • Locked Locked
  • Replies 4
  • Subscribers 127
  • Views 14737
  • 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

dataAudit error in ASSURA LVS check..

panchkapunch
panchkapunch over 13 years ago
Hi,
When I do an LVS check in ASSURA, I get an LVS clean result.But a Window pops up showing that there are 2 dataAudit errors...
The log file points to two "dubious dots" in "M1 drawing".But on highlighting the place, I don't see anything ...
Please help me resolve the issue ASAP..
Thank You.
  • Cancel
  • Quek
    Quek over 13 years ago

    Hi panchkapunch

    Data audit errors means that there are self-intersecting polygons, dots, etc in your layout. You can simply remove those dots which you have found. They might have been created accidentally. The dots might not be easily noticed. Try selecting the reported area and check if you have 2 objects selected. Then press "delete" key.


    Best regards
    Quek

    • Cancel
    • Vote Up 0 Vote Down
    • Cancel
  • Andrew Beckett
    Andrew Beckett over 13 years ago

    Often dot objects arise when you have a symbolic contact which has then been flattened. Symbolic contacts use these "dot objects" to represent the connection point, and they are a zero-area object so not especially meaningful for a physical verification tool.

    As Quek said, an area select should allow you to select them, although they're quite hard to see except by seeing a slight highlight where selected and an increase in the selection count in the window.

    Andrew

    • Cancel
    • Vote Up 0 Vote Down
    • Cancel
  • panchkapunch
    panchkapunch over 13 years ago
    Thank You both..
    I could delete the objects as Quek said.
    • Cancel
    • Vote Up 0 Vote Down
    • Cancel
  • esimpson
    esimpson over 13 years ago

    I came across this same problem when using p-cells from the process I'm using. Although I can get around them by flattening the p-cells and manually deleting the 'dots', I'm wondering if there is  some other way to get around the 'dataAuditErrors.

    The reason I'm asking is because the eocumentation in the design kit specifically says not to flatten the p-cells, and secondly some of the larger p-cells have more that 1200 of these dot errors, so deleting them one-by-one is not an option.

    Any advice on this would be appreciated!

     

    Eric Simpson.

     

    • Cancel
    • Vote Up 0 Vote Down
    • Cancel

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.

© 2025 Cadence Design Systems, Inc. All Rights Reserved.

  • Terms of Use
  • Privacy
  • Cookie Policy
  • US Trademarks
  • Do Not Sell or Share My Personal Information