If using paper separators or wrapping ensure you specifiy lint free and sulphur free.

If heat sealing polyxxx bags you might want to check that there is nothing nasty to
be released from the
bag which can also screw up solderability.
Your supplier base is likely to be different from here so naming names won't be much
help, but any half decent company should understand this type of request.
Finally also consider a dessicant bag.
Hope this helps.

Mike Fenner
BSP, OX15 4JQ, England
T: +44 1295 722 992
M: +44 789 999 7715
F: +44 1295 720 937

-----Original Message-----
From: Jerry Cupples <[log in to unmask]>
To: [log in to unmask] <[log in to unmask]>
Date: 05 August 1999 15:14
Subject: [TN] paper slips between stacked PWB's


>Hello, TN!
>
>
>Is it a good practice to put slips of paper between stacked bare boards
>before shipping product in sealed poly bags?
>
>In my experience, this is not commonly done.
>
>Assuming it is, what types of paper are acceptable, and what types are not?
>How long might it take to affect the activity of HASL metal finishes (i.e.
>solderability) on new product?
>
>
>regards,
>
>
>
>
>Jerry Cupples
>Interphase Corporation
>Dallas, TX USA
>http://www.iphase.com
>
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