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June 2010

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Subject:
From:
Chris Mahanna <[log in to unmask]>
Reply To:
TechNet E-Mail Forum <[log in to unmask]>, Chris Mahanna <[log in to unmask]>
Date:
Thu, 17 Jun 2010 14:34:31 -0400
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Samples were prepared by traditional grind/polish.  Olympus GX51, polarizer/analyzer.
Toy is Olympus (Nomarski) DIC.

Chris

 

-----Original Message-----
From: TechNet [mailto:[log in to unmask]] On Behalf Of Chris Mahanna
Sent: Thursday, June 17, 2010 12:57 PM
To: [log in to unmask]
Subject: [TN] solder joint failures

So we’ve got a new toy, and now can image SJ failures a little differently.  Requesting all experts to help me speak more intelligently about what we see.  (until AJ-820 is published ☺)

These are of major interest to me today.  It’s the easy stuff.  It’s the weak link. It’s thru hole.  As always, I may or may not know the history.  As an independent lab, our customers don’t usually tell us much.  I suppose they’re fearful that we may just regurgitate.

http://ipc-technet.groupsite.com/gallery/13892

Chris

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