Electronics Forum: gold finger orange contamination (Page 1 of 7)

Solder at gold finger

Electronics Forum | Mon Feb 05 20:33:14 EST 2001 | davef

Could you be trying to find: Stevens Products 128 N. Park St E Orange, NJ 07019 973.672.2140 Ross Stevens? Dynamic Technologies (titanium cover w/ silicone jacket, pricey) Stevens makes a U-shaped strip of fiber-material that slips over gold fing

Solder on gold finger

Electronics Forum | Thu Jul 20 05:04:30 EDT 2006 | bing007

We had a similar problem with gold contact pads. Cleanliness is paramount. If you are using foil tensioning system, wash the foil in a stencil wash before use as the cardboard cassettes may be contaminated. Be very careful when loading into a frame f

Solder on gold finger

Electronics Forum | Sun Jul 26 20:56:43 EDT 1998 | Masdi Muhammad

We are trying to reduce the number of units fail at system test due to flux on gold finger. We know so far that the flux is deposited onto the goldfinger during touch-up or rework and to reduce the contamination we are planning to implement 'tapin

Solder at gold finger

Electronics Forum | Mon Feb 05 20:43:27 EST 2001 | davef

1 Solder on gold fingers comes from: 1a About 70 % of the time it's caused by poor cleaning of screen printer, staging area (table), conveyor, reflow oven chain or belt, and keeping boards separate from cleaning process 1b After loading paste onto

Re: Solder on gold finger

Electronics Forum | Mon Jul 27 17:09:20 EDT 1998 | Rin

We are trying to reduce the number of units fail at system test due to flux on gold finger. We know so far that the flux is deposited onto the goldfinger during touch-up or rework and to reduce the contamination we are planning to imp

Re: Solder on gold finger

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

About the PCB gold finger contamination.

Electronics Forum | Wed Sep 18 22:10:48 EDT 2002 | Joe Wong

I'm working China ,in my working factory is a electronic OEM factory and got COB and SMT. But recently, COB got a big problem because the PCB gold finger got a contamination, that make us got a most defect product. So anyone can answer me how to clea

About the PCB gold finger contamination.

Electronics Forum | Thu Sep 19 21:17:50 EDT 2002 | Sam

We had encountered similar problem before. But the cause was found out to be the poor good plating, instead of contamination. The way we dealt with that was sending them to the supplier for rework. It may be the fastest and most relaibility way. Goo

About the PCB gold finger contamination.

Electronics Forum | Thu Sep 19 21:26:52 EDT 2002 | davef

Sam, You're correct. And that's what Joe would prefer to do with his contaminated boards, but he's trying to keeping line running, I believe.

About the PCB gold finger contamination.

Electronics Forum | Wed Sep 18 22:53:24 EDT 2002 | davef

Please give us background on your situation, so that we can focus on the specifics, for instance: * This is a bare board problem, correct? Then, this contamination causes what the problems in your process? * What is the type [ie, FR4, CEM1, etc] of

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