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April 1997

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Subject:
Resist Adhesion Test
From:
[log in to unmask]
Date:
Fri, 04 Apr 97 10:21:30 MST
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     Hello,
        What methods are available for testing the adhesion of dry film 
     resist on inner layers? 
        Has anyone used ASTM D4541 "Pull-Off Strength of Coatings Using 
     Portable Adhesion Testers"? A fixture is attached to the coating using 
     epoxy. The fixture is pulled away and the force required to do so is 
     measured.
     Thanks
     Rich
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     Richard Olsen                Telephone (602)-232-9154
     Continental Circuits Corp.   Main      (602)-268-3461
     3502 East Roeser Road        Fax       (602)-268-0208
     Phoenix Arizona              Pager     (602)-310-6245
     85040-2905                   Internet  [log in to unmask]
     USA                    I make circuit boards,what do you do?
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