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April 2002

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Subject:
From:
"Marsico, James" <[log in to unmask]>
Reply To:
TechNet E-Mail Forum.
Date:
Wed, 24 Apr 2002 10:33:21 -0400
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Hello Technet:

I think I may have asked this question a while ago (or something similar)
but couldn't find anything in the archives.  I have a surface mount assembly
that gets installed into a top assembly housing, with covers.  The test guys
want to subject this assembly to 125 degrees C for 112 hours.  Assuming that
all of the components are rated for this temperature, is there anything else
that says this isn't a good idea?  I'm thinking about the solder joints,
maybe decreased reliability due to excessive grain growth?  How about
acrylic conformal coating?  The PWB is polyimide, so this shouldn't be an
issue.  Anything else?

Thanks again...

Jim Marsico
Senior Engineer
Production Engineering
EDO Electronics Systems Group
[log in to unmask] <mailto:[log in to unmask]>
631-595-5879

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