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Date: | Wed, 3 Aug 2011 08:45:04 -0700 |
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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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