Electronics Forum | Fri Aug 17 11:55:31 EDT 2001 | davef
5uin. Your nickel thickness is fine. Although if you wanted to trade costs, consider giving-up nickel to 150uin thickness, while increasing the gold thickness. Gold over electroless nickel creates brittle joints because of phosphorous in the nicke
Electronics Forum | Thu Nov 01 04:52:50 EST 2001 | wbu
Hi Brian, yes that�s possible due to the presence of Au in the joint but nothing to worry if the Ni/Au is done properly (means not to much Au in your plating). "rugged" I haven�t noticed yet, that may depend on the definition and maybe the magnifica
Electronics Forum | Wed Mar 02 18:46:02 EST 2005 | Austinj
The tendancy always has been "when in doubt, touch it up"... this is not the way to "verify the process" and is not the best strategy for multiple reasons (unessecary rework, additional labor costs, as well as making the solder joint more brittle, [i
Electronics Forum | Wed Feb 25 16:39:29 EST 1998 | Eldon Sanders
I agree with Chrys, get the spike temp up and wetting is not a problem. However, when the palladium mixes in with the solder the joint will become more brittle. You need to make sure enough solder is printed on the board to minimize the concentrati
Electronics Forum | Wed Oct 15 09:53:01 EDT 2003 | markhoch
These boards also were above liquidus for 75 seconds, and the customer puts the boards thru extensive thermal shock and stress testing. An Alpha Applications engineer told me that because the boards were above 183 degrees for 65-75 seconds that the i
Electronics Forum | Fri Dec 09 08:53:12 EST 2005 | russ
We used flash gold once by mistake and we did pay for it. A very high fallout of BGAs and some of the leaded devices for latent failures from fractured solder joints. I do not know how the other types of components faired in this process but I woul
Electronics Forum | Wed Nov 07 10:30:19 EST 2007 | grantp
Hi, I did an interesting experiment today, when we had some government people in our factory to visit us. I mentioned that we went lead free well before the deadline, and it's nice none of our people need to handle anything with lead content, (they
Electronics Forum | Fri Nov 11 20:41:58 EST 2005 | GS
Thank you Davef, If I am not wrong in understanding, your answer is mainly related to the Legal point of view according to several different Countries who adopted Rohs or equivalent. My question, sorry for my poor English, is mainly related to the
Electronics Forum | Mon Oct 25 21:28:38 EDT 1999 | Dave F
3%) concentrations of gold form brittle intermetallic compounds with the tin in your solder. Electroless gold is applied with an autocatalytic process that self-limits around 5 mils thickness. You're correct electrolytic gold is used for goldfinger
Electronics Forum | Fri Nov 12 08:55:43 EST 1999 | Wolfgang Busko
Hallo Edmund, what does dull mean in your case ? It�s nearly impossible to say something about it without more information. Dull or shiny isn�t a clear or better no indicator for good or bad. Some companies add other metalls to the solder to get rid
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