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November 2011

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Subject:
Re: Strange Gold?
From:
"Nowland, Russell Howard (Russell)" <[log in to unmask]>
Reply To:
TechNet E-Mail Forum <[log in to unmask]>, Nowland, Russell Howard (Russell) <[log in to unmask]>
Date:
Thu, 17 Nov 2011 13:29:39 -0600
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text/plain
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text/plain (69 lines) 
That is strange.

They must have used some "fools gold".



RUSSELL NOWLAND
ALCATEL-LUCENT
REPAIR ENGINEERING SUPPORT
14000 Quail Spring Parkway, Suite 100
Oklahoma City, OK 73134
T: +1 405 302 1660
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M: +1 405 203 0034
[log in to unmask]
-----Original Message-----
From: TechNet [mailto:[log in to unmask]] On Behalf Of Steve Gregory
Sent: Thursday, November 17, 2011 12:59 PM
To: [log in to unmask]
Subject: [TN] Strange Gold?

Hi All,



Below is a photo of a SON8 footprint that was printed with SAC305 on a gold
plated PCB and reflowed. I have never seen this before. Is this "purple
plague"? If it is, exactly what causes it?



http://stevezeva.homestead.com/Strange_Gold.jpg



Steve



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