Reuven,

I'm quite sure there is no IPC suggested limit on the number of BGA's
replacements on the entire circuit board and at any one site. Some boards
can withstand many replacements without degrading while others may degrade
after a few replacements at one site.

Jeff Ferry
CEO
Circuit Technology Center, Inc.
www.circuittechctr.com
[log in to unmask]
978-374-5000 x14


-----Original Message-----
From: [log in to unmask] [mailto:[log in to unmask]]
Sent: Sunday, July 04, 2004 2:53 AM
To: TechNet E-Mail Forum.; Jack Crawford; [log in to unmask];
[log in to unmask]
Subject: Rjection of PCBs because of BGAs number replacements







Hi All,

Pls inform if there is any number / upper limit of BGAs components
replacements (done one after another) that reject the PCB automatically or
there is no such number and its depend on the PCB status (visually, X ray
and electrically).

For example PCB with more than 30 BGAs and 4 or 6 ( or XX number) of them
should be replaced, is there any such magic/upper limit number of
replacements that automatically reject the Assembly for use, according any
IPC standard?

Best  Regards

Reuven  ROKAH

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