Electronics Forum | Tue Aug 22 10:53:45 EDT 2000 | Dr. Ning-Cheng Lee
Excellent question. Alloy development is relatively easy compared to flux formulation. New fluxes for Pb-Free alloys need upgrades in 2 critical areas: 1) thermal stability 2) oxygen barrier efficiency Since the Pb-Free alloys require reflow proce
Electronics Forum | Thu Apr 01 21:18:31 EST 1999 | Chris Kelly
Glenn, There are both very good VOC-Free fluxes as well as alcohol based fluxes out there. This should be your primary focus if you are so lucky as to have to opportunity to actually select a flux! The use of nitrogen will benefit any no-clean pro
Electronics Forum | Tue Sep 21 13:10:10 EDT 1999 | Dave F
| Dear All, | | In order to understand the soldering technologies in SMT, I'd like to understand why some cards are soldered and then cleaned, or only soldered whitout water cleaning nor "ultra sound" wavelength. | | I mean that I wonder why we use
Electronics Forum | Wed Sep 22 02:45:23 EDT 1999 | Brian
| | Dear All, | | | | In order to understand the soldering technologies in SMT, I'd like to understand why some cards are soldered and then cleaned, or only soldered whitout water cleaning nor "ultra sound" wavelength. | | | | I mean that I wonder
Electronics Forum | Thu Mar 12 22:32:49 EDT 2015 | louisg
Hello. I would like to know the difference (if any) between water soluble flux and test socket cleaners (e.g. for Burn-In Board test sockets). As far as I know, they both remove oxides (tin & copper) with an activator, solvent and surfactants. Tha
Electronics Forum | Fri Mar 13 18:06:08 EDT 2015 | caurbach
I'm not familiar with any "test socket cleaners", but I will tell you that water soluble flux is designed for a soldering application so it requires heat to activate. Not sure how effective it would be at removing oxides at room temperature. Second
Electronics Forum | Mon Nov 12 18:08:37 EST 2007 | samir
That's when you give that "Supervisor" a tall glass of SHUT THE F*CK UP. I betcha you regret even mentioning it to him. I'd have just made up some techno-babble and switched it regardless. Told him something like - "pure IPA will act as a catlyst
Electronics Forum | Sun Mar 15 23:02:16 EDT 2015 | louisg
Thank you Dave! Does that imply that test socket cleaners use a more aggresive/corrosive activator to remove the oxides?
Electronics Forum | Fri Dec 01 17:03:57 EST 2000 | Dave F
Curious, very curious ... Residues � Where are these residues? [solder & laminate / mask, solder only, laminate / mask only] What is the result of your analysis to the residues? How do you know it�s a flux residue, rather than a chemical by product
Electronics Forum | Wed Feb 02 11:48:48 EST 2000 | Christopher Lampron
Dave, Ashok mentioned that the end termination of the component were dull and grey. I have had similar problems with Murata components exibiting the same characteristics on the end terminations. As it turns out, they have some exotic plating material
