Leo,
We have observed this phenomenon on polycarbonate telephone housings, but not
on circuit boards. The pink bags will emit antistatic compounds, especially
at elevated temperature and humidity. FTIR or SIMS analysis can be used to
confirm the presence of the liberated antistat if it is on your boards.
Amide, amine and amine/ammonium salt compounds are used as antistats for
this application, although the majority of pink bags are formulated with
amides due to their relative chemical inertness. However, one should
evaluate whether amines are present since insulation resistance could be
compromised.
Regards,
Jim Wrezel
Motorola, Inc.
_______________________________________________________________________________
From: Leo Reynolds on Thu, Jun 8, 1995 5:34 PM
Subject: Pink Poly Bags/Shipping PCB Assy's
To: [log in to unmask]
Hello;
Our question is "Has anyone experienced a problem with shipping PCB
Assys in pink poly bags and having contamination develop on the PCB from
outgassing of the plastic bag. The assys we've noted the problem with
have typically been air shipped, at least some of them to the Orient."
Thank You in advance for any light you might be able to shed on this
particular phenomenon.
Best Regards,
Leo
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Date: Thu, 8 Jun 1995 14:05:39 -0700
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From: [log in to unmask] (Leo Reynolds)
Subject: Pink Poly Bags/Shipping PCB Assy's
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