Electronics Forum | Thu Feb 01 03:02:50 EST 2018 | robl
Hi Rob, > > I did check with the board house, and > the confirmed that there was no Nickel plating, > but that the silver went straight onto the copper > in their immersion silver > process. > > Interestingly I've even tested an > unplated sam
Electronics Forum | Fri May 29 17:07:00 EDT 1998 | Dave F
| | We recently made the switch to no-clean and the wurface mount is turning out beautifully. However, the wave solder process continues to put up a fight; we are getting a white residue on the surface of the PCB. The residue is not localized
Electronics Forum | Tue Oct 09 21:45:21 EDT 2012 | davef
Hi Bob Ideas to consider are: * Use your handheld XRF * Swab vinegar on the copper and watch it brighten * Use the following procedure Nearly all copper minerals can be dissolved by melting with a mixture 1:2.5 of ammonium chloride and ammonium nit
Electronics Forum | Sun Aug 08 04:36:02 EDT 1999 | Brian
Dave Frankly, I think you may be barking up the wrong tree. Like DaveF, I suggest that the process would be horrendously expensive with masking and so on. The $64,000 question is whether what you propose will serve any useful purpose. I venture to
Electronics Forum | Tue Mar 20 09:31:56 EST 2001 | PeteC
I dunno.: e�lec�tro�lyt�ic Of or relating to electrolysis. Produced by electrolysis. Of or relating to electrolytes. e�lec�trol�y�sis Chemical change, especially decomposition, produced in an electrolyte by an electric current. Destruction
Electronics Forum | Sun Jul 29 21:23:27 EDT 2001 | nifhail
When carry out the contamination test,do we measure for Chlorides on water soluble and No-clean fluxes? 1) What is the equivalent factor for machines developed to test the board cleanliness, Omega-meter vs Ionograph vs Zero-ion. 2) What values do we
Electronics Forum | Mon Jan 07 21:07:00 EST 2002 | davef
Using a flux pen sounds like a good idea. Comments are: * I assume you�re talking aqueous flux. If not, some NC flux pens leave white residues. Nearly all of 15 samples suffered to varying degrees with white residues. * Use the same flux that you
Electronics Forum | Tue Apr 02 22:58:10 EST 2002 | davef
Whatever I've said, my intent has never been to insult you. Smack you yes, insult you no. True, you never said the word �strings� but you did say � * �� shouldn't I be able to expect enough green strength from my epoxy to hold 0603 caps in place wi
Electronics Forum | Thu Aug 21 09:05:07 EDT 2003 | davef
Use a cartridge that's approved [conform to OSHA 42 CFR 84] to provide respiratory protection against organic vapors, chlorine, hydrogen chloride, sulfur dioxide, chlorine dioxide, and hydrogen fluoride with a P100 particulate filter which is effecti
Electronics Forum | Tue Dec 14 18:03:22 EST 2004 | Dreamsniper
Hi, Can you guide with the above? I read ROSE Test is a process control tool. What about Ion Chromatography, SIR and FT-IR. What Accpetance Criteria will I use for our assembly when using WS Flux? My WS Flus says it has 0% Halide so What can Ion Chr