Electronics Forum | Sat Jul 29 09:07:15 EDT 2006 | davef
The issue is not the gold, but the amount of gold. Gold content over 3 percent raises concerns about reliability of the solder connection.
Electronics Forum | Fri Feb 28 01:08:33 EST 2020 | sarason
Back in the 50's, 60's and 70's gold plated boards were all the rage for high reliability. test equipment, milspec etc. Nowadays only edge connectors are gold plated. Immersion plated gold is also used but it doesn't last the distance like gold plate
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 30 20:17:19 EDT 2005 | davef
Matt: What thickness of hard gold was applied to your customer's boards?
Electronics Forum | Thu Jun 30 21:55:33 EDT 2005 | Mason Hughes
Hi, In response to reading height or gold thickness, I can do that masonhughes@sbcglobal.net
Electronics Forum | Sat Jul 29 13:36:57 EDT 2006 | Chunks
Davef is right about the amount, but why are using gold to solder too when other finishes are avaiable?
Electronics Forum | Fri Feb 28 00:42:40 EST 2020 | luciano_zhang
What is the use of gold plated boards?
Electronics Forum | Mon Dec 06 09:16:22 EST 1999 | Dave F
Russ: Three things: 1 Wolfgang is 100% correctamundo about the slow dissolution rate of gold 2 Shear stength of the gold 63/37 solder connection decreases rapidly, as the gold content of the solder connection increases above 2%. 3 There are many
Electronics Forum | Fri Jan 14 09:36:49 EST 2000 | Richard
If the gold fingers are pad types which plug into expansion slot connectors, I have used a titanium guard attached to the wave conveyor over the solder pot, which allows the PCB to connect to the fingers but masks the solder from the gold pads along
Electronics Forum | Tue Jun 28 19:56:59 EDT 2005 | davef
Matt: Yes, if the gold was really thick, it could appear like your pictures. In measuring gold plating thickness, we'd want to use xray fluorescence [XRF]. For alternatives, look here: http://www.pfonline.com/articles/pfd0027.html
