Stats

State Suggested Answer
Replies 2
Answers 1
Subscribers 160
Views 4318
Members are here 0

Resolving DRC Errors for Blind Vias on BGA Pads in Allegro

I used a 0.25mm pad size blind via on a BGA pad with a 0.25mm size. I set a 0.1mm B/B stagger clearance in the physical constraints, but I am still getting a DRC error: "Minimum blind/buried via stagger distance top constraint value: 0.1mm, actual value: 0mm." How can I solve this error in Allegro?

0 avant over 1 year ago

Can you set "pad-to-pad connect" to allow via on pin? You could use a physical constraint region to allow it in a specific area only.
Cancel
Vote Up 0 Vote Down

Sign in to reply

Verify Answer

Cancel
0 SaiPavanl over 1 year ago

I believe the location of blind Via and bga pad are overlapped exactly on the same location. In this case you add minimum BB Via Stagger value to 0. This will remove the Minimum blind/buried via stagger distance DRC
Cancel
Vote Up +1 Vote Down

Sign in to reply

Verify Answer

Reject 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.