Electronics Forum | Mon Dec 13 10:12:45 EST 1999 | John Thorup
Hi Dennis The gold plating on a circuit board is present to protect the nickle plating from corrosion. The layer is so thin that as it goes into solution in the solder it constitutes only a small percentage of the total joint. It is commonly accept
Electronics Forum | Thu Jun 08 07:56:34 EDT 2017 | jkitt84
In an excellent previous thread davef mentions brass should be plated prior to soldering to prevent zinc leaching from the brass. It is reported once the zinc leaches, the joint is weak. He recommends copper or nickel plating. Would silver plating w
Electronics Forum | Fri Jun 09 10:01:39 EDT 2017 | jkitt84
Ed, this is great info. Thanks. Jeff
Electronics Forum | Thu Jun 08 11:37:44 EDT 2017 | jkitt84
davef, thanks for feedback. I talked with a plater who said they put copper before silver when plating brass. Would a complete stack of: Brass part, then 0.0001-0.0002" of copper, then 0.0005" of silver, then Tarniban anti oxidation. Sound reasonabl
Electronics Forum | Thu Jun 08 16:12:19 EDT 2017 | davef
Your plater's recommendation should work fine. Your simple copper plate will work, but you'll be stepping into fighting a copper tarnish battle. Silver over the copper is a better choice. I was thinking a silver thickness of a minimum of 3 microns
Electronics Forum | Thu Jun 08 18:19:40 EDT 2017 | edhare
Jeff, You might look at this paper, which has some background & references that are relevant to your question ... http://www.semlab.com/papers/diffusionbarrierplatinginelectronics.pdf Ed Hare
Electronics Forum | Wed Feb 03 18:36:47 EST 1999 | Earl Moon
| Does anyone know if I will have problems soldering surface mount components to an all hard gold plated PC board. We want to use hard gold similar to gold used for edge fingers because our customer is concerned about wear and conductivity of connect
Electronics Forum | Mon Mar 30 11:39:46 EDT 2009 | rgduval
Is this a sample board that you ran without components? If so, I'd get it back to your board house, and ask them to explain to you what's happening. We never did get to a satisfactory root cause on our issue (at least, satisfactory to me). It seem
Electronics Forum | Mon Jun 12 07:42:56 EDT 2006 | brian.perry@suntroncorp.com
We are placing a gold plated device (LCC) to a NiAu PCB using a SnPb No-clean solder. We're noticing quite a bit of difficulty with reliable joints (intermittent connectivity) and if we have to rework a particular device, adjacent devices of this sa
Electronics Forum | Mon Dec 13 00:05:28 EST 1999 | Dennis O'Donnell
I can't figure out why everyone is plating everything with gold. According to the J Standard, gold plating should be removed before soldering to the surface. The gold, when left on the surface to be soldered will contaminate the solder joint and ca
