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Date: | Mon, 30 Apr 2012 12:09:53 +0000 |
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Circuit Medic carries the parts but they ain't cheap. A master kit from Techni-tool will run around 785 or so.
I just bought a bunch for the shop.
Pat
-----Original Message-----
From: TechNet [mailto:[log in to unmask]] On Behalf Of Gumpert, Ben
Sent: Monday, April 30, 2012 4:39 AM
To: [log in to unmask]
Subject: Re: [TN] EXTERNAL: [TN] BGA repair guidelines
Mark,
Check out IPC-7711/7721 4.7.3 "Surface Mount, BGA Pad Repair, Film Adhesive Method"
I'm sure that there are repair kits available, but I don't know any specific sources.
Ben
-----Original Message-----
From: TechNet [mailto:[log in to unmask]] On Behalf Of [log in to unmask]
Sent: Friday, April 27, 2012 10:24 AM
To: [log in to unmask]
Subject: EXTERNAL: [TN] BGA repair guidelines
Dear Forum;
During BGA assembly rework attempt on a Class 2 assembly, one of the pads lifted. This pad has no connection. It is not used.
I was looking for IPC guidance and found guidelines for PCB repair of traces, but so far found no reference for repair of a BGA pad.
Are there guidelines for BGA repair and are there kits available to replace a lifted pad?
What risk(s) would exist if the BGA were placed without that pad in place under the ball?.
Regards,
Mark Julstrom
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