This is a very interesting discussion that should have no bearing on
     our circuits but??  We use double treated foil on some of our single
     sided flexible circuits.  All circuits here are nickel and gold plated
     (electrolytic).  For years we have had few problems with this process,
     yet for several months now we have had a problem with adhesion of the
     nickel to the double treat foil.


     We have checked our resist stripping process and enhanced the pre
     plate clean.  There has been an improvement but the problem persists.

        Is there a connection??

        Chuck Brummer
        Acuson
        [log in to unmask]


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Subject: Re: [TN] reverse treat foil -Reply
Author:  "TechNet Mail Forum." <[log in to unmask]>,          Steves
<[log in to unmask]> at ccUnix