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October 2001

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Subject:
Particulate matter
From:
Mary Jane Chism <[log in to unmask]>
Reply To:
TechNet E-Mail Forum.
Date:
Mon, 15 Oct 2001 16:16:49 -0500
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I have a questions concerning the power of magnification that should be used
to inspect a populated assembly for particulate matter. I have reviewed the
IPC-A-610 and also the IPC-A-600 manuals for indication of what power of
magnification used to inspect lint, dross, etc. I really did not find an
answer, unless I am looking in the wrong place. It seems the naked eye would
be sufficient, but our manufacturing is telling us to inspect a 7X. If
anyone has an answer, we would appreciate it. Thanks.

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