Sh,
     
        Try wet vapor hone with 320 grit Aluminum Oxide at 30- 60 psi. This 
     will clean holes but beware of possible distortion to material.
     
                                                        M. Covel
                                                        HMSC, Tucson Az.
     [log in to unmask]


______________________________ Reply Separator _________________________________
Subject: Processing PTFE laminates.
Author:  [log in to unmask] at CCGATE
Date:    3/30/97 8:48 PM


Hi Techneters
     
We have done preliminary trials with produsing PTFE laminates, including 
drilling -
-desmear & hole preparatin by plasma - glass etch - plating. The laminates 
are double side 'Cuclad 217' 0.005" (Teflon with glass cloth). After plating 
we have visualy examined the holes ander microscope & we are observing 
plated particals sticked to the hole wall. We think that these are plated 
glass edges. 
Please, Can anyone advice how to eliminate this problem. 
Sh. Shalev
Eltek Ltd - Israel
Tel  972 3 9395050
Fax 972 3 9309581
E-mail :  [log in to unmask]
     
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