Electronics Forum | Wed Apr 24 21:27:10 EDT 2002 | davef
50�C. * Boards are too hot to be cleaned. Yes, saponified cleaners will remove heat decomposed WS flux. Well, I suggested changing paste to another poster, because he mentioned overheated solder connections and I guessed that his white residue was
Electronics Forum | Fri Mar 29 00:18:05 EDT 2019 | SMTA-Vikram
3% NDF. We using 8oz 90 degree blade type razor probes, still same issue. Is there stencil we can use or selective pasting test via so flux will not build in testvia. any help or guidance will be appreciate.
Electronics Forum | Sat Jan 09 01:30:36 EST 2016 | junax
Thanks for your input Michael. Basically the boards had been go through from washing and even ionic contamination already. In order to eliminate or detect the flux residues, is there any equipment something like a uv lamp that can detect the flux fro
Electronics Forum | Sat Jan 21 16:36:19 EST 2006 | gipos
Hi James, You can use the same flux for micro BGAs.The 529D we used for rework of high freq. CSPs and even w/out cleaning it still worked on 2.5GHz.We have not washed the flux for 6 months and the RF features of the circuits remain the same. No chan
Electronics Forum | Tue Sep 15 14:11:59 EDT 2015 | jpal
You should also remove all the pump parts and clean them, checking the bearings and seals. Clean completely the parts that allow the solder to flow back into the pot; ours have a spiral that fills with dross. Treat yourself to new nozzles. Tinning
Electronics Forum | Wed Jun 16 11:49:55 EDT 2010 | tim_wright
A customer wants to coat a no-clean assembly to cut cost and cycle time. I know what wave flux I can use to make it work, but the Indium SMQ92J paste we use causes dewets. Any other no-clean pastes out there that play nice with acrylic?
Electronics Forum | Thu May 31 10:52:31 EDT 2007 | patrickbruneel
A solder wire classified as L0 under IPC J-STD-004 means that the flux residues can be left on the board safely, and when you select this type of cored wire the intention is not to clean. You just select a solder wire that gives you an acceptable lev
Electronics Forum | Tue Sep 15 12:11:36 EDT 1998 | Bill Schreiber
Jeff, The use of flux thinner would only add another chemical to the process. Environmentally, that would not be a good idea. My guess is that you would only end up with "thinner jelly" anyway. Alcohol works well on RMA flux. When assemblers switch f
Electronics Forum | Fri May 23 04:22:39 EDT 2014 | andrzej
Thanks Hege. I've done some research and this might be the root couse: 1. Too thin HAL layer which leads to formation intermetallic Cu-Sn layers on surface after 1-st reflow (most probably) 2. Poor quality of solder for HAL process. 3. Problem
Electronics Forum | Thu May 05 02:40:30 EDT 2016 | padawanlinuxero
Hello guys! I have a question for you guys, we have been working with a cleaning agent call Safewash (SWAS) from electrolube, we use this safewash to clean the flux residue from the boards after wave soldering, since or customer doesn't like to have
