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Subject:	Re: PCB baking
From:	Paul O Connor <[log in to unmask]>
Reply To:	TechNet E-Mail Forum <[log in to unmask]>, Paul O Connor <[log in to unmask]>
Date:	Mon, 11 May 2009 13:55:55 -0500
Content-Type:	text/plain
Parts/Attachments:	text/plain (23 lines)

Rob,
I'm afraid I can't give you a answer to your specific issue (I doubt there
is a simple answer/reason), but I've been witness to similar issues
regarding board reliability in the past - the company I worked for spent a
lot of time & money trying to resolve the issues; some were down to board
design but in the main it was found that price was dictating the PCB shops
we used & they simply were not capable of producing defect free boards
consistently. In the end we put in place PCB design guidelines & a  series
of PCB specification tests for bare boards that approved the PCB shop &amp; the
material set. Cost for each qual was in the region of $5K. I hope this
response will be of some assistance & apologies if this response is low on
specifics regarding your query.

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