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Date: | Wed, 16 Apr 2008 13:15:00 -0400 |
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Out Gassing comes after In Gesting
-----Original Message-----
From: TechNet [mailto:[log in to unmask]] On Behalf Of Whittaker, Dewey
(EHCOE)
Sent: Wednesday, April 16, 2008 1:12 PM
To: [log in to unmask]
Subject: Re: [TN] Out Gassing
Mist opportunities?
Dewey
-----Original Message-----
From: TechNet [mailto:[log in to unmask]] On Behalf Of Ken Bloomquist
Sent: Wednesday, April 16, 2008 10:03 AM
To: [log in to unmask]
Subject: [TN] Out Gassing
No sooner do I get back and I need some help. This is an age old subject
that has once again reared its ugly head.
We have an assembly that we are building with mixed technology. We have
a kit for several thousand and we release them in work orders of 250.
All of the PWB's have the same date code 3307. We process about 500 a
day.
The first 250 went through without a hitch; the second 250 had a few pin
holes in the through-hole components; the last 250 were terrible with
what I'd call severe out gassing on 50 out of 250.
What the heck would cause a drift like that from Tuesday to Wednesday?
Thank,
KennyB
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Search the archives of previous posts at: http://listserv.ipc.org/archives
Please visit IPC web site http://www.ipc.org/contentpage.asp?Pageid=4.3.16 for additional information, or contact Keach Sasamori at [log in to unmask] or 847-615-7100 ext.2815
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