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September 1997

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Subject:
Re: Pretinning - Flux
From:
Doug Pauls <[log in to unmask]>
Reply To:
TechNet Mail Forum.
Date:
Thu, 18 Sep 1997 09:20:29 -0400
Content-Type:
text/plain
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text/plain (24 lines) 
Stein,
An alternative to the hazardous acid fluxes is to use an electrochemical
reduction method to change the oxides on your leads back to the pure metal
form.  A mild flux can then be used to solder.  The reduction method is a
technology called ROSA (Reduced Oxide Soldering Activity) and is being
developed by a consortia team lead by Dave Hillman, Rockwell
([log in to unmask]).  You might consider trying this new method
before going to the active fluxes, which require a very thorough cleaning.

Doug Pauls
CSL

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