Electronics Forum | Sat Jan 25 20:17:40 EST 2003 | ramanandkini
We are soldering a 8 pin TTL chip on to a CEM1 board that has a hot air level soldering. We use no clean soler paste for the reflow process. Now the customer wants us to clean since he is afraid of flux attracting the dust. We have some SMT LEDs that
Electronics Forum | Fri Dec 27 11:42:18 EST 2019 | emeto
I could not see pictures of your board - please attach one or two. So to answer your questions: 1. wave should not overflow over your board - mostly we use pallets as carriers to protect the assembly. 2. Solder dross is caused because your wave is no
Electronics Forum | Mon Nov 01 21:50:32 EST 1999 | chartrain
No clean flux is really a misnomer. What is often taken to mean no residue in effect means no visible residue. Because you can't see it doesn't mean it isn't here. Many manufacturers have been through this same learning curve. The goal with a no clea
Electronics Forum | Fri Dec 27 17:40:55 EST 2019 | rgduval
Using no-clean flux will make the boards very difficult to clean. If you can switch to water soluble flux, your life will be much easier. The "icicles" lead me to think that the board isn't getting hot enough in the pre-heat cycle, and/or there isn
Electronics Forum | Mon Jul 08 03:09:12 EDT 2002 | Benny
Hi all How can I find the technical paper or source of information about using No-clean flux with high frequency apllication. High frequency mean more than 2 GHz - 5 GHz. I heard from my colleague that No-clean flux residue on board effect to high
Electronics Forum | Tue Jan 25 13:06:47 EST 2000 | Bill Schreiber
When switching from cleaning RMA to a no-clean flux, one area that is commonly overlooked is the stencil cleaning operation. Stencil cleaners that are effective in cleaning RMA often fail when cleaning no-clean (especially alcohol cleaners). Pallet
Electronics Forum | Mon Apr 03 01:17:37 EDT 2000 | cpgoh
I ever thot of changing the whole solder pot altogether but then it prove to be a costly measures.. If looking at the source of the problem, it might be mainly due to the way that the machine had been maintain... Anyone care to share how they are per
Electronics Forum | Thu May 26 08:52:42 EDT 2011 | davef
Phil Zarrow wrote a useful paper that could help in evaluating paste. Here read it ... Evaluating Solder Paste � Not An Option Contributed by Phil Zarrow of ITM an Independent SMT consulting firm With soldering being the dominant source of assembly
Electronics Forum | Fri Mar 17 03:27:20 EST 2000 | Wolfgang Busko
Darren: Do you know what these residues are ? How clean is your solderbath ? How often during a day do you clean it ? My first impression is that you deal with oxides. M2C Wolfgang
Electronics Forum | Mon Apr 09 11:34:59 EDT 2018 | emeto
definitely don't mix clean and No clean. Run No Clean as you decided, but have your flux and paste manufacturers advice, how this flux can be cleaned(if you decide or required to clean). I know for a fact that some of these NC flux residues are almos
