If your vendor contacts their ENIG vendor and requests a Palladium killer 
cleaner that should take care of the plating in the non plated holes. 
Usually the plating takes place in the hole due to presence of Pd left in 
the hole. There are special cleaners designed to go after this Pd and 
problem resolved.

Regards,

Bob Metcalf
Atotech Western Regional Manager

Cell 714-334-7667
E-Mail [log in to unmask] 

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From:   David Hillman <[log in to unmask]>
To:     <[log in to unmask]>
Date:   06/10/2014 10:07 AM
Subject:        Re: [TN] Plating in non-plated holes - again
Sent by:        TechNet <[log in to unmask]>



Hi Henry - maybe I am making this too simple but if your drawing/design
data shows a nonplated thru hole, then having any plating in it, partial 
or
complete, is a violation of the drawing and therefore a nonconformance.

Dave


On Tue, Jun 10, 2014 at 10:26 AM, Henry Rekers <
[log in to unmask]> wrote:

> Hey there technetters.  A while back, I sent a message about enig 
plating
> contamination in NON-plated holes.   I've bounced it back to the board
> shop saying that it is unacceptable, but they claim it is due to 6012
> 3.5.2
> I also think it's unacceptable in the 4552 spec.   The design
> documentation clearly states non-plated.   It's not plated, just 
partially
> plated.
>
> Any advice?
>
> Thanks.
>
> 
_____________________________________________________________________________________
>
>
> Henry Rekers P. Eng |   Schneider Electric   |  Global Supply Chain  |
> Senior Manufacturing Engineer
> Phone: +1-250-652-7100 ext. 7510  |   Toll Free: +1-866-466-7627 ext.
> 7510  |   Fax: +1-250-544-2390  |
> Email: [log in to unmask]  |   Site:
> www.schneider-electric.com  |   Address: 2195 Keating Cross Road,
> Saanichton, BC, Canada, V8M 2A5
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