Some fabricators use tape to mask boards for various operations.  Tape residue (adhesive that transfers to the laminate surface) can be a problem.  

Don Vischulis


Sent from my iPad

On May 10, 2012, at 11:23 AM, Douglas Pauls <[log in to unmask]> wrote:

> Perhaps I should have prefaced Question 1 with INCOMING!!!!!!
> 
> A commenter has indicated that we should have a section discussing 
> possible contamination or process residues that come from "Processing 
> Aids" in board fabrication operations.  We already discuss items like 
> sharpees, grease pencils, tapes, stickers, etc.
> 
> What other "process aids" should be included in a primer on board 
> cleanliness for fabricators and why?
> 
> One of the commenters for this was Dewey, and the IPC Dewey filter 
> automatically routes those to a black hole.......
> 
> Doug Pauls
> 
> 
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