Electronics Forum | Thu Jan 18 15:28:10 EST 2007 | CK the Flip
If you are, in fact, running a No-Clean solder paste: Different no-clean solder pastes will leave different types of (benign) residues. If your paste has been qualified from a Bellcore/SIR/Electromigration standpoint, any residues remaining will NO
Electronics Forum | Wed Mar 26 12:15:11 EDT 2008 | patrickbruneel
Hi all, I wanted to share this with y�all, because it�s informative on what is to come but at the same time hilarious. ******************************************************** From Dr. Craig Hillman (DfR Solutions) RoHS 2 Moves Forward (Run For Yo
Electronics Forum | Wed Dec 20 12:52:18 EST 2006 | pr
Been known to dice a flip or 2. (and we're playing in 70 degree weather)!
Electronics Forum | Fri Jan 21 08:00:09 EST 2005 | Lloyd
I recently saw a brief presentation on selective cleaning using Co2. In basic terms a fine jet of Co2 is blasted onto the desired area of the PCB removing the contamination and supposedly causing no damage to PCB or components. I think it's quite a n
Electronics Forum | Fri Mar 22 14:19:38 EDT 2019 | gregcr
Thank you ProcEng1 Nordson sent me a flux suggestion list: No Clean: 1. Kester Select 10 2. ALPHA EF-2210 3. AIM FX-16 Water Sol: KESTER 2331-ZX Nozzle Tinning: SUPERIOR #75
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 | Sat Dec 16 08:23:11 EST 2006 | pr
The "Wave optimizer" is a little pricey but is easy to use, gives instant feedback (display on the unit as opposed to hooking it up to a computer)and will give feedback on the waves, as well as preheat. They will send you a unit to trial for a week o
Electronics Forum | Tue Dec 26 10:54:37 EST 2006 | yusufgomec
We use hot air leveling (HAL) process in pcb production. HAL process is 3 steps. �n 1. step flux. 2. step is HAL. And 3. step is rinsing. As you know there is mustn't any flux after rinsing operation. Our flux chemical is water soluable. But there ar
Electronics Forum | Fri Sep 04 02:09:03 EDT 2009 | sachu_70
Hi Walter, Do you refer to a sprayfluxer operation? The problem seems to be a parameter setting issue. 1. Ensure the wide angle spray reaches PCB with optimum jet pressure. You could pass a glass plate to understand flux coverage and view Jet pressur
