That's funny, of all the coatings parylene is the easiest one to produce a
fine edge. The edge of the coating is as straight as the tape is layed down.

Lloyd E Duso
Diamond-MT
Plant Manager
(814) 535-3505
 


-----Original Message-----
From: TechNet [mailto:[log in to unmask]] On Behalf Of Larry Dzaugis
Sent: Friday, March 08, 2013 10:48 AM
To: [log in to unmask]
Subject: Re: [TN] Conformal Coating and J1 / 610

My bane was must coat and must not coat with no transition area.
This was for automated dispensing.
Even with masking to give a sharp edge, there is a tolerance on the
location.
Something should be noted as to need for a tolerance or a don't care area
between the 2, even if it is up to the individual design to specify it.
A paralyene contractor told me he could hold 4 mils. That is not zero and I
hate to think of the price to hold that tolerance.
For the 100 panel/ an hour shops, it has to be larger.


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