I guess one of the questions is if the pitted area has the same layer of gold thickness as the regular area. If not then premature "wear" in the pitted areas can occur. Early failures in the field, etc.
Ronald D. Peeler Jr., B.S. IE
Process Engineer
SWEMCO
Moorestown, NJ 08057
Tel: (856).222.9900 ext. 31
Cel: (484).948.0779
Fax: (856).222.0700
[log in to unmask]
-----Original Message-----
From: TechNet [mailto:[log in to unmask]]On Behalf Of Ian Hanna
Sent: Friday, June 22, 2007 3:59 PM
To: [log in to unmask]
Subject: Re: [TN] Gold finger pitting
It's the nickel -- not the gold...
-----Original Message-----
From: TechNet [mailto:[log in to unmask]] On Behalf Of Genny Gibbard
Sent: Friday, June 22, 2007 3:53 PM
To: [log in to unmask]
Subject: [TN] Gold finger pitting
Please see the picture. We believe the copper underneath the gold is
where the pitting occurs. It appears fully plated with gold, even in
the pits.
It doesn't seem to meet the IPC-600 spec, but I was wondering what are
the potential problems this could cause.
________________________________
From: Steve Gregory [mailto:[log in to unmask]]
Sent: June 22, 2007 1:49 PM
To: Genny Gibbard
Subject: RE: Gold finger pitting
Hi Genny!
It's up! Go to:
http://stevezeva.homestead.com/files/Pitted_Gold_Fingers.jpg
I don't know if I would accept it either. Is it the gold that's pitted,
or the copper beneath it? Or can you tell?
Have a good weekend!
Steve
________________________________
From: Genny Gibbard [mailto:[log in to unmask]]
Sent: Friday, June 22, 2007 1:45 PM
To: Steve Gregory
Subject: Gold finger pitting
Steve could you please help me out here and post a pic?
I need the learned response of Technetters.
This does not appear to meet IPC, but I am not sure what the hazards of
letting it go thru would be.
<<pitted gold fingers.pdf>>
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