• 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. Allegro X PCB Editor
  3. How to fix this power plane discrepancy when exporting odb...

Stats

  • State Suggested Answer
  • Replies 9
  • Answers 1
  • Subscribers 161
  • Views 1192
  • Members are here 0
More Content

How to fix this power plane discrepancy when exporting odb++ from brd

EA202507041851
EA202507041851 1 month ago

Hello, 

I have the following issue and would be really grateful if you can help me. Recently I noticed that all power planes in the ODB are wrongly exported, it is as if the design is inverted. As can be seen in the following screenshots:
.brd:


exported odb:



This happens in all power planes (it doesnt matter if the plane is GND or VCC, for example). The rest of the planes in the design are exported perfectly. 
This is the first time I encounter this issue and dont know how to fix it.

  • Sign in to reply
  • Cancel
  • Eric Jordan
    0 Eric Jordan 1 month ago

    In your artwork setup, there is an option to output the film as negative. This is checked automatically if you have defined your layer as a plane in your stackup.

    Uncheck the negative checkbox and that should fix it.

    • Cancel
    • Vote Up +2 Vote Down
    • Sign in to reply
    • Verify Answer
    • Reject Answer
    • Cancel
  • EA202507041851
    0 EA202507041851 1 month ago in reply to Eric Jordan

    Hello Eric,

    Thanks for your help. I tried the steps you mentioned and it fix the problem, but now some information is "lost". For example the vias do not longer appear. Do you know the reason for this?

    • Cancel
    • Vote Up 0 Vote Down
    • Sign in to reply
    • Verify Answer
    • Cancel
  • KD202502275710
    0 KD202502275710 1 month ago in reply to Eric Jordan

    Good one

    • Cancel
    • Vote Up 0 Vote Down
    • Sign in to reply
    • Verify Answer
    • Cancel
  • Eric Jordan
    0 Eric Jordan 1 month ago in reply to EA202507041851

    Can you send me a screenshot? I don't think I've seen that before.

    • Cancel
    • Vote Up 0 Vote Down
    • Sign in to reply
    • Verify Answer
    • Cancel
  • EA202507041851
    0 EA202507041851 1 month ago in reply to Eric Jordan

    In the first  screenshot you can see the second layer (which is a GND layer) on PCB editor and in the second screenshot you can see the ODB exported after following the steps you gave me:

    As you can see all the vias do not appear as holes in the exported ODB.

    • Cancel
    • Vote Up 0 Vote Down
    • Sign in to reply
    • Verify Answer
    • Cancel
>
Cadence Guidelines

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