Electronics Forum | Tue Apr 09 00:26:46 EDT 2002 | craigj
Are currently investigating a change of solder paste for various reasons and are considering a move from 63/37 to using 2% silver solder paste for increased long term reliabilty of solder joints with gold finish PCBs and to further reduce reflow temp
Electronics Forum | Thu Aug 21 22:47:39 EDT 2003 | adlsmt
Well after reading all kinds of stuff about this I still question if it is my current problem BUT, how common is this??? I dont want to be afraid of the boogie man but it seems like a lot of folks are having problems with black pad. I have used imers
Electronics Forum | Fri Sep 21 16:28:11 EDT 2007 | Cmiller
Yea, I remember that. Our customer freaked out but it never caused any problems I am aware of and the boards still have not come back to us. If you are using imersion gold, I would be pretty sure this is the cause.
Electronics Forum | Sun Mar 12 19:09:45 EST 2006 | cmiller
We had the same issue on a batch of boards and the board house concluded it was because they did the sikscreen before the imersion gold. (which was done out of house-which is very undesireable). I never knew if this was really the case but thought I
Electronics Forum | Tue Dec 10 05:03:58 EST 2002 | praveen
We are having solder fillet finish issue. The solder looks like rough solder on the connector leads .The plating of the leads is Nickel (99.9% purity) and the PCB plating is imersion gold. I have tried fine tuning my reflow profiles an have used N2 i
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