Electronics Forum | Thu Jan 10 11:22:48 EST 2013 | pbarton
Looks to me like under etching of the underlying copper and the gold is just plated to all of the exposed copper surface. Is this characteristic the same on all solderable pads? You will not be able to remove this gold.
Electronics Forum | Tue Jan 15 10:35:08 EST 2013 | boriskilk
We would agree with Pete B about both the under etching as a possible issue and you will not be able to remove this gold. Another possibility is the solder mask (plating resist) hasn't been taken right to the edge of the pad.
Electronics Forum | Thu Jan 10 08:59:15 EST 2013 | rway
It appears the gold bleeding spans the gap between the plates, is this correct, or is it just the picture? If so, it should definitely be removed. Please clarify on what we are looking at.
Electronics Forum | Tue Jan 15 22:33:32 EST 2013 | boardhouse
Hi Samuel, The issue your seeing is caused by lack of control of your board shops Immersion gold plating line. I would reject the order back to them. Their gold line baths need to be checked or they had a poor rinse after nickel plate before adding
Electronics Forum | Wed Jan 09 18:08:23 EST 2013 | hegemon
Not exactly normal, I don't think. Though I have seen similar in the CM world. I can't think of a way to remove that overplating, either. If you can't reject the boards outright, then you might be looking at some touch up work, should bridging hap
Electronics Forum | Thu Sep 19 17:14:02 EDT 2002 | davef
Comments are: * Use an eraser if the surface of Au is not clean, but make sure the eraser has no/low ionics (such as sulfur that is a common additive for rubber). * If the plating surface required eraser to remove the top surface, the plasma normally
Electronics Forum | Thu Sep 19 21:23:42 EDT 2002 | davef
I'm not saying that an eraser will necessarily work. What I'm saying is that some erasers may cause more trouble than the eliminate. Look here http://aic.stanford.edu/jaic/articles/jaic28-02-003_2.html We prefer a brand called Ruby Red. The "ole
Electronics Forum | Thu Aug 21 22:10:07 EDT 2003 | adlsmt
Well, for some reason the board house will pay for the boards but has some issue with paying for the parts on them. Why am I not supprised? Perhaps I have mis-diagnosed the problem. We have found two different board p/n's with the same type of defec
Electronics Forum | Tue May 19 10:23:06 EDT 1998 | Mike C
| Howdy Richard, | Welcome to the club! I now dub thee a full fledged member of the "Spotty Gold Finger and Bleeding Ulcer Society"...or SGFBUS for short... (GRIN) | I know it's not funny to be in that position, but there's so many different places t
Electronics Forum | Mon May 18 22:15:20 EDT 1998 | Steve Gregory
Howdy Richard, Welcome to the club! I now dub thee a full fledged member of the "Spotty Gold Finger and Bleeding Ulcer Society"...or SGFBUS for short... (GRIN) I know it's not funny to be in that position, but there's so many different places to pick
.gif)
