Dave,
Closest response thus far. If no one guesses correctly, I'll send the
real answer out at 1:00 eastern time. Everyone truly needs to know
this!
Leland
-----Original Message-----
From: TechNet [mailto:[log in to unmask]] On Behalf Of Simonik, Dave R.
(David)
Sent: Thursday, June 05, 2008 10:24 AM
To: [log in to unmask]
Subject: Re: [TN] Stainless Steel Contamination Question - Source
Nailed!
A brillo pad being used to clean features to aid the vision system?
Dave Simonik
Sanmina SCI
Owego NY Division
-----Original Message-----
From: TechNet [mailto:[log in to unmask]] On Behalf Of Leland Woodall
Sent: Thursday, June 05, 2008 10:15 AM
To: [log in to unmask]
Subject: Stainless Steel Contamination Question - Source Nailed!
Everyone,
After checking every filter, every transfer belt, every reflow oven, and
most every square inch of the building, I was able to identify the
source of the 10 micron stainless steel that has been giving us such a
headache. Just in case anyone ever has the same problem, I thought I'd
share the solution with our group.
To refresh your memory, we were finding this stuff on top of components,
and later inside our Huntron X-Y table inspection machines. We did
everything but take a hatchet to the Huntrons, and there was nothing
found (of course).
While one of the Huntron machine's operator was gone to lunch, I decided
to check an item she had left behind on her workstation. I took it to
the lab, placed it beneath the microscope, and was astonished to find an
identical match to our contamination woes.
Before I let the cat out of the bag, does anyone want to venture a
guess?
Leland
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