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BGAs, Density Levels, and Courtyard Changes

Printed From: PCB Libraries Forum
Category: PCB Footprint Expert
Forum Name: Questions & Answers
Forum Description: issues and technical support
URL: https://www.PCBLibraries.com/forum/forum_posts.asp?TID=3661
Printed Date: 02 Jul 2026 at 10:05am


Topic: BGAs, Density Levels, and Courtyard Changes
Posted By: mnperry
Subject: BGAs, Density Levels, and Courtyard Changes
Date Posted: 02 Jul 2026 at 7:48am
When I change density levels from "N" to "L" would I expect to see a change in Courtyard excess for BGA devices?

I see in Options\Terminals\SM Grid Array and BGA...that:

"Grid array settings are not subject to Density Level Rules.


Replies:
Posted By: Tom H
Date Posted: 02 Jul 2026 at 8:09am
BGA's are One Tier Density Level. 

Setup the BGA rules in 'Tools > Options > Terminals > Collapsing BGA'

You define all the settings per Ball Diameter. You can also add additional ball diameters.
  • Ball Diameter
  • Pad Size Reduction (Adj. +/-)
  • Tolerance (Pad Var +)
  • Pad Size Rounding
  • Solder Mask +/-
  • Paste Mask +/-
  • Courtyard Excess +




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Posted By: mnperry
Date Posted: 02 Jul 2026 at 8:42am
Thank you Tom!


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