Electronics Forum | Sat Mar 25 07:10:12 EST 2006 | davef
We agree with Chris. If your gold is applied properly and is the correct thickness, you will see no difference. One nit on Chris' comments: immersion gold will plate-out [self-limit] around 8 thou, although we've heard 12 thou.
Electronics Forum | Thu Apr 20 13:42:23 EDT 2006 | fredericksr
I've seen embrittlement %s down to 3%, but a standard 5 mil solder pad would require well over 100uIn of plated gold to cause embrittlement. -Other Russ
Electronics Forum | Thu Mar 30 08:59:46 EST 2006 | Dan
Yes the balls are at the outer edge. The chips we have are not showing exposed copper, but the lead-free finish...
Electronics Forum | Mon Sep 18 15:23:07 EDT 2006 | Brad Courtemanche
Crazy Question, but do you know who the board house is that is making the boards. We also use alot of flash gold and have noticed many problem with one particular board house.
Electronics Forum | Mon Nov 27 08:52:35 EST 2006 | russ
Never heard the term chemical gold before. I would recommend using industry standard tems first hehehe, what is the proces sfor these boards? I would hope that you are using ENIG if you are soldering to these baords by the way Russ
Electronics Forum | Tue Feb 27 05:54:19 EST 2007 | m7mdshms
I want to replace my FDD with a driver to read flash memory instead of Floppy disks, but uses the ordinary floppy interface on pc mother board
Electronics Forum | Thu Jul 31 02:40:20 EDT 2008 | JH pbf
We use Axarel 2200 as recomended by Vitronics Soltec, which is the same as we use on our MPM printes for under stencil cleaning. It is non-ozone depleating and has a high flash point. For insurance purposes we banned IPA from the shop floor some
Electronics Forum | Mon Aug 18 17:20:16 EDT 2008 | jlawson
Try Avantec Topklean EL-60, can clean off solder paste or uncured glue, is hydrocarbon based cleaner - but with high flash point. Will evapourate faster than water based solutions, not as fast as IPA , but does much better job.
Electronics Forum | Fri Mar 19 16:13:00 EDT 2010 | davef
The aluminum material is typically plated by a zincation process, followed by nickel plate and a gold flash layer. What do the soldered side of the component and the soldered side of the aluminum coin look like? Do they both take solder?
Electronics Forum | Thu Jun 17 21:28:07 EDT 2010 | bob2000
Hello: I would like to know if a radial capacitor (1000uf, 25V)should be placed flash to the board? Thanks, Bob
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