Electronics Forum | Mon Jul 03 23:11:04 EDT 2000 | Patrick Ng
hi, We are receiving PCBs with gold fingers "discolored". The "discolored" gold fingers can be removed if rub with soft eraser! We are working with suppliers to determine the root cause and eliminate this issue. Pls assist if you have encountered si
Electronics Forum | Thu Jul 06 20:10:06 EDT 2000 | Dave F
I agree. Make them quit doing this ugly thing to your boards!!!
Electronics Forum | Thu Jul 06 13:31:35 EDT 2000 | Michael Parker
Thanks Dave for the right methods that will get Patrick out of his mess. As long as one is a "Do it yurselfer". I still advocate having the supplier accept responsibility and clean the boards. After a bit of elbow grease, some cussin' and lost time I
Electronics Forum | Tue Oct 26 12:18:53 EDT 1999 | Gary Kemp
We are having a discolorization problem with the gold fingers on our PCB's. I have been made aware that there is a gold touch-up paint (masking) that is available. Would anyone know where I can get my hands on some of it? Any help would be appreci
Electronics Forum | Wed Jul 05 17:06:36 EDT 2000 | Michael Parker
Patrick- You have not given enought detail of the type of discoloration. Is it "white residue"? Can it be "rust" colored? Whatever it is, you fab supplier needs to be called in immediately and give you an exact reason for this failure. Just rubbing
Electronics Forum | Tue Oct 26 14:11:25 EDT 1999 | Dave F
Gary: Two things: 1 Reworking golding fingers is an old topic, check the SMTnet archives to get started. 2 Gold fingers should not be discoloring, unless: * You are doing something bad to them ... OR * Your supplier has doinked the process, which
Electronics Forum | Wed Jul 05 20:54:17 EDT 2000 | Dave F
Hi Patrick: Mike is correct. Taking it a little differently ... The approach you take is dependent on: 1 Type of gold finish 2 Source of the staining. Since you�re talking gold fingers, this is probably hard gold. So, � * If it�s a water or an o
Electronics Forum | Fri Jan 19 10:43:28 EST 2007 | jimmyjames
You guys are all joking right?! There aren't any contaminates in your solder, the different colors on the surface are completely normal and even expected. The top layer of solder oxidizes and the structure of the surface resembles crystals, refract
Electronics Forum | Tue Feb 17 13:54:26 EST 2009 | snsmt
Hello All, I am trying to find some answers regarding acceptability of a RJ-11 Connector (phone jack). We have just received thousands of these connectors in and some of the gold plate contacts show some discoloration. The contacts are pink. I was w
Electronics Forum | Mon Oct 20 14:17:35 EDT 2008 | robinj
The discoloration/shadow appearance is a clear sign of black pad which is from nickel corrosion in the gold bath.
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