Electronics Forum: soldering to nickle plating (Page 14 of 14)

solder balls - Possible root causes

Electronics Forum | Fri Jul 06 03:23:01 EDT 2001 | kennyhktan

Hi there Steven ! Please allow me to share some of my problem we're facing here with you. Here are a few points that I suggest you should check on your current process:- (1)PCB - Component land partern design ? It is per IPC spec ? - Mask

Re: Storage life of Gold Finish Boards

Electronics Forum | Tue Jan 19 11:12:41 EST 1999 | Dave F

| | | | | Folk's, | | | | | | | | | | I'm looking for information of how long you cna store a gold finish PCB before building it. I know there are problems with the gold disappearing into the underlying nickle over time / temperature etc but exactly

Re: Storage life of Gold Finish Boards

Electronics Forum | Fri Jan 15 11:28:50 EST 1999 | Bob Willis

| | Folk's, | | | | I'm looking for information of how long you cna store a gold finish PCB before building it. I know there are problems with the gold disappearing into the underlying nickle over time / temperature etc but exactly how long do you h

Re: Storage life of Gold Finish Boards

Electronics Forum | Fri Jan 15 14:45:48 EST 1999 | Earl Moon

| | | Folk's, | | | | | | I'm looking for information of how long you cna store a gold finish PCB before building it. I know there are problems with the gold disappearing into the underlying nickle over time / temperature etc but exactly how long do

Re: Storage life of Gold Finish Boards

Electronics Forum | Mon Jan 18 10:01:16 EST 1999 | John W

| | | | Folk's, | | | | | | | | I'm looking for information of how long you cna store a gold finish PCB before building it. I know there are problems with the gold disappearing into the underlying nickle over time / temperature etc but exactly how l

Re: Detecting lifted leads on QFPs

Electronics Forum | Fri May 28 16:30:39 EDT 1999 | JohnW

| Yes l know this problem keeps cropping up on the forum but l've missed some of the follow-ups. | | Our problem is that the lifting only occurs on 3% of production so actually detecting an improvement is difficult. We're actually having to inspect

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