Hi Steve,
We've seen and corrected this condition many times. Is the peel in the
critical contact area of the fingers? If it is, then reworking those
specific contacts should be completed. There are complications when the peel
is exposing copper, not just nickel but it still should be a reworkable
condition. See the following link to our procedure for rework.
http://www.circuittechctr.com/guides/4-6-3.shtml
Let me know if you'd like to discuss further.
Regards,
Andy Price
Sales Manager
978-374-5000 ext: 18
PS. Keep up with the latest industry news, and learn some
Tricks-of-the-Trade we've discovered over the past 20 years. All of this and
more in the Circuit Technology Center eNewsletter. See the latest issue at
http://www.circuittechctr.com/general/enews.shtml. Visit the bottom of the
newsletter for a free subscription.
-----Original Message-----
From: Steve Gregory [mailto:[log in to unmask]]
Sent: Friday, October 28, 2005 11:37 AM
To: [log in to unmask]
Subject: [TN] Gold Plating Peeling...
Well, I just got back from "Sin City", and as they say; "no rest for the
wicked".
I really wasn't that wicked, but I was confronted with a new problem this
morning.
We just built some assemblies and conformal coated them, but when they were
being
de-masked, the gold plating on the fingers started peeling up! Check out:
http://www.stevezeva.homestead.com/files/Peeling_Plating.jpg
http://www.stevezeva.homestead.com/files/Peeling_Plating_2.jpg
I have a couple of questions:
Can I repair this?
If I repair this, should all fingers be stripped and repaired?
Kind regards,
-Steve Gregory-
Senior Process Engineer
LaBarge Incorporated
Tulsa, Oklahoma
(918) 459-2285
(918) 459-2350 FAX
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