Electronics Forum | Sat Sep 16 03:09:35 EDT 2000 | Sartor
I am in trouble with gold finger cleaning and repairing.Can anyone recommend good solutions?Also,can anyone recommend a good flux paste source(s)?Thanks.
Electronics Forum | Wed Jan 18 16:03:08 EST 2006 | Klevesqu@vtc.edu
Hello, I am wondering where I can purchase and read up on the specs for the proper solder flux pastes for Luxeon emitters. I notice in there aplication briefs they mention 380SR-flux gel and a few others but I no clue if that is a model number or wha
Electronics Forum | Wed Jan 18 16:30:30 EST 2006 | davef
380SR-flux gel is sold by Cobar. Look here: http://www.lumileds.com/pdfs/AB10.PDF This application note suggests: * �#1;Metals 390DH4 * �#1;Metals LR735 * �#1;Metals NS4029 * ESP 6#1;412 * Cobar 380SR#1;flux gel Comments are: * "�#1;Metals" is "A
Electronics Forum | Sat Jan 10 10:28:06 EST 2004 | tommy
Is it possible to have zero flux or paste spattering for all smt reflow pcbs. We are seeing around 0.4% of flux spattering and looking forward to zero defect.
Electronics Forum | Mon Jan 12 11:51:15 EST 2004 | Hussman
I don't believe you'll get an exact zero flux with no-clean pastes. Water soluable yes, but I don't see it happening with no-clean; at least not this year. As for spatter, you should be able to control this. Can you define what you call "spatter"?
Electronics Forum | Wed Jan 14 08:28:46 EST 2004 | davef
Search the fine SMTnet Archives for background on solder on gold fingers. As we recall: * Paste selection * Proper reflow recipe tuning ... are important.
Electronics Forum | Wed Jan 14 06:42:38 EST 2004 | tommy
We see spattered(spitting of flux or solder to nearby area) solder/flux on gold fingers.We view the gold fingers area under 30x before reflow and it is cleaned but after reflow we see flux droplets or solder on gold fingers. We tried to changed a new
Electronics Forum | Mon Sep 18 19:58:10 EDT 2000 | Dave F
broad answer. There's tons of suppliers. Go to "Circuit Assembly" magazine web site and look-up flux suppliers in the "Buyers Guide." Broad line suppliers are Kester, Alpha ... They will make you answer: I'm joining bla, bla, bla metals, using b
Electronics Forum | Wed Mar 12 08:03:30 EST 2003 | Surachai
Hi all Pls. help advise. Our board use RMA solder paste (Pb-free Sn96.5/Ag3.0/Cu0.5). Can we use No-clean paste flux (Delta 670S1) in rework process? If it can not be used, why?. Thanks very much for your advice. Surachai
Electronics Forum | Wed Mar 12 10:25:29 EST 2003 | davef
J-STD-001C, 7.2.1 Flux Application says words to the effect of: When an external flux is used in conjunction with flux cored solders, the fluxes shall be compatible. Regardless of whether these are or not flux cored solders, this begs the question:
