Electronics Forum | Sun Jul 29 08:36:39 EDT 2001 | davef
You have provided very little information. Two similar possibilites come to mind: poor pad solderability protection and old boards. POOR SOLDERABILITY PROTECTION: Maybe the nickel plating under the gold is oxidized, contaminated, or otherwise very
Electronics Forum | Wed Aug 21 17:43:12 EDT 2002 | davef
Your flux supplier will have good suggestions.
Electronics Forum | Wed Apr 02 23:21:24 EST 2003 | scottf
Make the move to Silver Immersion, no nickel to mess with!
Electronics Forum | Wed Apr 21 19:53:31 EDT 2004 | Ken
Has anyone published this process? I am interested in learning more.
Electronics Forum | Tue Dec 21 04:05:15 EST 2004 | Rob
We used to use Cobar paste on Nickel - very aggressive.
Electronics Forum | Tue Jan 25 09:04:02 EST 2005 | Indy
Are you soldering to polymide material or nickel tin ?
Electronics Forum | Wed Mar 09 21:08:20 EST 2005 | KEN
It is not copper. It is copper / nickel and other variations of copper intermetalics.
Electronics Forum | Mon Apr 04 09:16:03 EDT 2005 | Haran
What could be the cause?The lead plating is Nickel and Tin.
Electronics Forum | Mon Apr 04 09:27:32 EDT 2005 | russ
I would bet that you never wetted to the nickel.
Electronics Forum | Thu May 18 10:28:46 EDT 2006 | slthomas
Are you seeing added solder or is it possible you're looking at nickel?
