AR coating, what's that? Sounds like anti reflex coating....
correct bubble wrap must have conductive stuff all through the plastic,
if I'm not wrong. There is seemingly less reliable stuff with just a
conductive
spray coating, but it's forbidden here. MIL products demand safer bags and
bubble wrap.
Inge
----- Original Message -----
From: "McGee, Michael" <[log in to unmask]>
To: <[log in to unmask]>
Sent: Tuesday, September 02, 2008 9:39 AM
Subject: Re: [TN] ANTISTATIC MATERIAL QUESTION
When you open the bubble wrap, does it smell like solvent? If so, the
marks are from under cured coating. We have seen a similar problem with
AR coating in ESD bags. Added a 3 hr bake at 130F to eliminate the
problem.
The bake time/temp would depend on your process/coating/and coating
thickness.
-Mike
-----Original Message-----
From: TechNet [mailto:[log in to unmask]] On Behalf Of Roberts, Jon
Sent: Tuesday, September 02, 2008 10:43 AM
To: [log in to unmask]
Subject: [TN] ANTISTATIC MATERIAL QUESTION
We have been noticing if bubble wrap is allowed to come in direct
contact with a circuit card assembly (non ESD and ESD) sensitive that
the bubble wrap leaves impression in the AR coating. Do know if the
resulting impression is related to uncured coating or reaction of the
bubble wrap material? Thanks for any information, Jon
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