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Reply To: | TechNet E-Mail Forum. |
Date: | Thu, 4 Jun 1998 13:55:21 -0400 |
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I think you will find upon analysis (chromatography or FTIR) that
amine antistatic agent and diallyl phthalate plasticizer are the two
contaminats from pink poly. I know the amine can cause solderability
problems. Perhaps a mild etch could be used prior to soldering or a
more highly activated flux.
Pat Hogue
Materials and Processes
[log in to unmask]
> ----------
> From: Mike Bailey[SMTP:[log in to unmask]]
> Reply To: TechNet E-Mail Forum.;Mike Bailey
> Sent: Thursday, June 04, 1998 7:33 AM
> To: [log in to unmask]
> Subject: [TN] Anti-Static Bags
>
> Has anyone experienced problems with packaging bare PCB's in the pink
> anti-static bags? We are seeing a "waxy"image transfer from the bag
> to
> the panel after what appears to be several months of storage in a
> controlled atmosphere. It is aggravated by stacking individually
> packaged boards on top of each other and has occurred on several
> different surface finishes. The substance can also be found on the
> non-board side of the bag. Does anyone know of what the coating
> might
> be comprised? Would you predict solderability issues etc?
>
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