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November 2004

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Subject:
From:
Peter Swanson <[log in to unmask]>
Reply To:
TechNet E-Mail Forum <[log in to unmask]>, Peter Swanson <[log in to unmask]>
Date:
Thu, 18 Nov 2004 12:36:06 -0000
Content-Type:
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There is an (in)famous video clip around of some soldering test or other
(can't recall the exact details) - during the clip, a fly nonchalantly
wanders in and out of shot. A star is born! Think you can download it from
http://www.bobwillis.co.uk.

Peter
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Peter Swanson                                      Oxfordshire, England
Dynamix Technology Ltd
IPC Standards, Guidelines & Videos - Electronics Manufacturing Bookshop
[log in to unmask]    http://www.dynamixtechnology.com
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-----Original Message-----
From: Steve Gregory [mailto:[log in to unmask]]
Sent: 16 November 2004 20:41
To: [log in to unmask]
Subject: [TN] Strange Soldermask Defect...

Hi All!

Well, I've run across some strange problems in my time, but this one is a
new one to me.

I was on the production floor just after lunch, close by one of our final
inspectors looking at something under her microscope, when I hear her say;
"What the heck is this?" then I hear this big; "EWWWWWW!" from her...

"Steve! Steve! You gotta' look at this!" she says to me. I pull up a chair
and peer into the microscope, and I have to say, I've never, ever seen this
before.

Take a look at:

http://www.stevezeva.homestead.com/files/StrangeMaskDefect.jpg

and

http://www.stevezeva.homestead.com/files/StrangeMaskDefectCloseUp.jpg

What should I do? Should I send this to a lab or something? I don't know
what to tell my inspectors, much less explain this to our customer...this
really tops my list as one of the strangest defects I have ever seen.

-Steve Gregory-

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