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August 2011

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Subject:
From:
Bob METCALF <[log in to unmask]>
Reply To:
TechNet E-Mail Forum <[log in to unmask]>, Bob METCALF <[log in to unmask]>
Date:
Wed, 3 Aug 2011 08:45:04 -0700
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text/plain (103 lines)
Richard,

All ENIG chemical manufactures have "best practice" documentation for 
their ENIG processes. These have been developed over time to prevent the 
conditions you mention. When I have done investigation into ENIG failures, 
when it is traced back to the PWB fabricator, it always turns out to be 
deviation from best practice processing.

I would advise the client to make himself familiar with the fabricators 
ENIG best practice process documents and insure the fabricator provide 
audit documentation insuring they are following best practice.  It's not 
rocket science following proven reliable process parameters, but it is 
easy for any fabricator to "drift" over time away from best practice 
processing. Regular audits are a must to insure adherence to proper ENIG 
processing.

Regards,

Bob Metcalf
Western Regional Manager

Atotech USA Inc
1750 Overview Drive
Rock Hill, South Carolina 29730 USA

Mobile: 714-334-7667
e-mail: [log in to unmask]
Internet: www.atotech.com

Managing Director: Kuldip Johal

This e-mail and any attachments hereto are business documents of Atotech 
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From:   "Stadem, Richard D." <[log in to unmask]>
To:     <[log in to unmask]>
Date:   08/03/2011 08:17 AM
Subject:        [TN] Steps to take to prevent ENIG issues
Sent by:        TechNet <[log in to unmask]>



I have a client who is switching PWB fabricators for ENIG finishes. They 
are fully aware of ENIG issues such as Black Pad, Brittle Nickel, etc., 
and want to know whatever steps can be taken to prevent ENIG PWBs from 
reaching production with these issues.
Does anyone have any suggestions?


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