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Date: | Wed, 14 Mar 2007 22:26:18 -0400 |
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If you have 40 microinches of gold you most likely have e
Steve,
If you have 40 microinches of gold you most likely have electrolytic
plated nickel and gold; with 40 microinches of gold it can't be ENIG
surface finish
Regards,
George
George M. Wenger
Andrew Corporation Wireless Network Solutions
Senior Principal FMA / Reliability Engineer
40 Technology Drive, Warren, NJ 07059
(908) 546-4531 [Office] (732) 309-8964 [Cell]
-----Original Message-----
From: TechNet [mailto:[log in to unmask]] On Behalf Of [log in to unmask]
Sent: Wednesday, March 14, 2007 9:31 PM
To: [log in to unmask]
Subject: [TN] IPC ENIG SPECIFICATION
Hi All,
I have a question about this specification. Obviously when the
technical
gurus wrote this they had good reasons for specifying the nickel at a
minimum of 118 microinches. One of our customers recently received some
parts from the far east. The print called for ENIG but the parts came in
with approx. 20 microinches of nickel and approx. 40 microinches of
gold.
My question is what are the reliability/solderability concerns on low
nickel. Thanks in advance. Regards Steve Kelly
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