Stats

  • Locked Locked
  • Replies 1
  • Subscribers 165
  • Views 1357
  • Members are here 0
More Content
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

Defining Vias With Different Anti-Pads/Selected Layers In Positive Planes

aemeehan

Engineer has requested a smaller anti-pad on only 2 plane layers for a via on a high speed diff pair. I've created the special via with the different anti-pads on the 2 layers (whose names match the .brd). When I replace the vias in question, the plane clearances still remain at the old diameter. I updated the shapes on the appropriate planes to void to Thermal/anti instead of DRC, and updated the shapes, but I'm still seeing the old larger clearances. I'm using positive planes by the way. What other setting do I need to look at in order to make this smaller anti-pad work? Thanks for any advice you can provide.

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.