Electronics Forum | Tue May 06 15:33:36 EDT 2008 | operator
I know IPC-A-610 RevD has requirements for Gold Fingers and solder contamination. Is there any such requirements for Gold Mounting Holes, Gold Pressure Fit Socket Lands (SMT pads), Exposed Gold Traces ? Wouldn't these all be considered "critical cont
Electronics Forum | Wed Dec 20 16:54:28 EST 2000 | ronh
Question: How many insertion/removal cycles can be expected of gold finger contacts? Problem: We manufacture a class 2 PCBA with gold finger contacts whose application will require repeated insertion and removal into card edge connectors (mother b
Electronics Forum | Wed Dec 20 16:54:07 EST 2000 | ronh
Question: How many insertion/removal cycles can be expected of gold finger contacts? Problem: We manufacture a class 2 PCBA with gold finger contacts whose application will require repeated insertion and removal into card edge connectors (mother b
Electronics Forum | Sun Jul 26 22:35:55 EDT 1998 | D.Lange
Masdi, Try board shunts. They are hi-temp rubber strips with grooves cut. They can be popped on and off with ease and are much faster than taping and considerably cheaper. They also work great for masking goldfingers prior to wave soldering. Contac
Electronics Forum | Wed Jun 05 15:09:44 EDT 2002 | cyber_wolf
I have seen this happen before it has been my experience that even one tiny sphere of solder form your solder paste will melt and spread out on your gold fingers. The particles are so small that they are not visible to the naked eye. If operators ha
Electronics Forum | Thu Jun 06 07:28:30 EDT 2002 | cyber_wolf
It has been my experience that the only thing(s) that will ever cause this is: 1. Operators with paste on their hands. 2. Paste on the screen printer tooling. 3. Paste on the bottom of the stencil. Even very very small amounts of paste on the gold fi
Electronics Forum | Fri Feb 11 14:32:44 EST 2000 | Ashok Dhawan
I am looking for a Masking tape for Gold fingers on a PCB . It should not leave any residue on reflow soldering ( 220 deg c). Currently, I am using Kapton tape with Silicon adhesive. It is leaving minute quantities of residue? The fingers are al
Electronics Forum | Fri Apr 13 22:38:19 EDT 2001 | edylc
Hi , Could you be seeing the nickel under the gold plating because you are removing some of the Gold with the Kapton Tape....?? You mean , the adhesive properties of the kapton tape will cause the gold plating on the gold finger to be somehow peel of
Electronics Forum | Thu Jun 08 10:52:37 EDT 2000 | rolandos1
Hello, My name is Rolando and I want to know more about gold fingers protectors. Our current problem is on SMT line which is used with one board with gold pads and while normal production we get solder paste contaminations on these pads, recently o
Electronics Forum | Sun Sep 26 11:54:06 EDT 1999 | Earl Moon
| i had a problem here, during the wave soldering process, we apply a water soluble mask on the gold finger to protect it from contamination. But after washing, there is still some mask left on the gold finger. | Can anyone pls advise is there any pa
