PCB Libraries Forum : Via Fanout For BGA https://www.PCBLibraries.com/forum/ Fri, 10 Apr 2026 02:58:10 +0000 Sun, 15 May 2016 09:13:34 +0000 http://blogs.law.harvard.edu/tech/rss Web Wiz Forums 12.07 360 https://www.PCBLibraries.com/forum/RSS_post_feed.asp?TID=1888 <![CDATA[PCB Libraries Forum]]> https://www.PCBLibraries.com/forum/forum_images/PCBLForumLogo.gif https://www.PCBLibraries.com/forum/ <![CDATA[Via Fanout For BGA : This feature is better to do in...]]> https://www.PCBLibraries.com/forum/via-fanout-for-bga_topic1888_post7709.html#7709 Author: Tom H
Subject: 1888
Posted: 15 May 2016 at 9:13am

This feature is better to do in the CAD tool. Many CAD tools have automatic via fanout and if it doesn't, you need to ask the CAD vendor to add that feature into the CAD tool.

Vias in a PCB Footprint library part become Pins and the BGA pad and via connecting line become Associated Copper. This makes the library part size very big.

We tried this once and spent a lot of time creating it, but it was a disaster. It sounds like a good idea, but you should manually try to do it and put the resulting part in a PCB layout to test it. Then you will see that it's impossible to fanout BGA's in the library part.

Also, most BGA's have unused pins and if those pins have vias, it blocks routing channels and bottom side capacitor placement.


]]> Sun, 15 May 2016 09:13:34 +0000 https://www.PCBLibraries.com/forum/via-fanout-for-bga_topic1888_post7709.html#7709 <![CDATA[Via Fanout For BGA : Add option to add fan out for...]]> https://www.PCBLibraries.com/forum/via-fanout-for-bga_topic1888_post7702.html#7702 Author: mahmoodv99
Subject: 1888
Posted: 10 May 2016 at 10:38pm

Add option to add fan out for BGA in footprint itself with options via size, trace size, etc.

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