Electronics Forum: noclean flux concentration (Page 16 of 83)

white residue

Electronics Forum | Wed Jan 27 19:42:34 EST 1999 | parag palshikar

i am working with the noclean process and getting white residues on the bottomside of the board probably due to the wave soldering flux.i am using a no-clean solder paste and a noclean wave solder flux.The boards passed the accelerated temperature a

Re: white residue

Electronics Forum | Thu Jan 28 09:45:44 EST 1999 | parag

| | i am working with the noclean process and getting white residues on the bottomside of the board probably due to the | | wave soldering flux.i am using a no-clean solder paste and a noclean wave solder flux.The boards passed the accelerated tempe

Clean vs No-Clean

Electronics Forum | Mon Sep 08 10:34:37 EDT 2008 | blnorman

Because of our high volume production, we use no clean flux. We have experienced leakage currents with leadless QFNs. One problem is the part isn't being utilized as it should, but another is the flux residue. There is ionic residue in no-clean fl

Water Soluble Flux

Electronics Forum | Wed Dec 01 04:42:48 EST 2010 | aungthura

Thank you, Patrick and Hege I now more understood about no-clean and RMA. Yes, I agree with Hege the no-clean makes PCB look pretty dirty however the soldering looks good and shinny. To wash out RMA flux, I may need chemicl cleaning, am I right? Cu

Flux Residues on Wave Soldered PCBAs

Electronics Forum | Fri Jul 29 16:20:57 EDT 2016 | davef

"ALPHA® EF-2210 is VOC-free, halide-free, rosin/resin-free, low solids no-clean flux which provides the highest activity of any VOC-free Bellcore SIR compliant flux for defect-free soldering. "[2016 Alpha Assembly Solutions] I assume that you're tal

Re: white residue

Electronics Forum | Wed Jan 27 21:02:53 EST 1999 | Dave F

| i am working with the noclean process and getting white residues on the bottomside of the board probably due to the | wave soldering flux.i am using a no-clean solder paste and a noclean wave solder flux.The boards passed the accelerated temperatu

Clean vs No-Clean

Electronics Forum | Tue Sep 09 09:04:17 EDT 2008 | davef

Oh that's GREAT. Now, we're encouraging engineers blow to saliva on boards. The saliva is made 99.5 percent of water and 0.5 percent of dissolved inorganic compounds. One third of the 0.5 percent are dissolved metal-ions such as Ca2+, Na+, K+, Cl- a

Re: Cleaning No-Clean

Electronics Forum | Tue Oct 13 17:30:09 EDT 1998 | Upinder Singh

| All Y'll | | How do you clean components that must be added to an assembled board after water wash? | | BACKGROUND | | Our basic process goes like this: | | 1 Print paste with OA flux, place, reflow, wash | 2 Repeat 1 | 3 Insert PTH, OA flux

solder paste

Electronics Forum | Tue Apr 12 08:25:43 EDT 2005 | davef

Q1 Can anyone explain to me what is the clean and non clean solder? A1 The trend away from CFCs has lead many users to evaluate switching to no-clean soldering processes. The term "no-clean" is actually a common misnomer when used to describe a flux

Ionic Contamination Testing

Electronics Forum | Tue Nov 07 00:33:40 EST 2017 | aqueous

If no-clean flux is reflowed correctly, many of the activators are encapsulated within the resin residue left behind after reflow. An ionic contamination test cannot differentiate between ionic residue that was encapsulated (not harmful) and residues


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