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Another option employed frequently is to test prior to applying Entek.
The Entek process will not cause any problems with the panels if
followed properly.
Mike Doty
P.E.
Hadco TC3
______________________________ Reply Separator _________________________________
Subject: Re: [TN] IN CIRCUIT TEST
Author: etgar dimaculangan <[log in to unmask]> at SMTPLink-Hadco
Date: 1/23/99 6:57 AM
Enthone CU106A is an organic coating applied after continuity test prior to
visual inspection. The coating thickness ranges from 0.3~0.5 microns so it
can be easily removed by pins during probe testing. Storing the boards with
punctures would create oxidation/discoloration that would take affect
during the assembly process. Scrubbing the surface of the finish with even
a cloth can reduce the thickness but muchsoever avoid contaminating the
board with alcohol because it totally strips the application.
Regards,
Etgar D
----------
> From: Don E Steffen <[log in to unmask]>
> To: [log in to unmask]
> Subject: [TN] IN CIRCUIT TEST
> Date: Saturday, January 23, 1999 2:30 AM
>
> Greetings Techno's
>
> We are developing a process with organic coating. The organic
coating
> we have selected is Enthone CU106A. I have been told there is some
> testability issues with organic coating. The Gage R&R data from what
I
> have been told is > 30% with organic coating.
>
> Does anyone out there have any experience with testability and
> repeatability with organic coated boards? What are the issues I
need
> to be aware of as I am doing my PFMEA? Are there special Po-Go pins
> used for this type of coating?
>
> Please let me know!
>
> Desperate in Indiana!
>
> Donn Steffen
>
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