Electronics Forum | Mon Nov 09 09:44:22 EST 2015 | davef
Purpose. This describes setting-up a wave soldering system set-up for a new assembly design or checking a wave solder machine operation with a test board. Applicability. To be used for new design printed circuit assembles and during machine accept
Electronics Forum | Wed Sep 23 20:21:16 EDT 1998 | p. palshikar
i am working on a no-clean process implementation project in a company. i want to change a board to no-clean which had dendrite problems underneath the small resistors on the bottom side(in smt).i want more information on the exact cause of dendrites
Electronics Forum | Mon May 01 15:04:15 EDT 2000 | Ernie Miller
I need a good cleaning cycle for leaded brass (CuZn39Pb3). Product to be ni/au loose peice plated
Electronics Forum | Thu Mar 13 15:13:17 EST 2003 | ruggi
That's a good idea...and to add on to it, you could wash after the wave, too--it really doesn't matter. A question about this though--unless your Customer specifically requires "clean", no-clean flux whether it's ugly or not, is permitted by IPC,
Electronics Forum | Sat Mar 29 08:50:30 EST 2003 | davef
Barry Echoing an earlier poster, replace your stone. Use the suppliers' recommended thinner. Do NOT use isopropanol [IPA]. IPA contains water. Water is the bane of low residue soldering. It will get you in trouble fast. From IPC, get your hand
Electronics Forum | Fri Mar 28 21:43:57 EST 2003 | MA/NY DDave
Hi Yes to your stone question. This pretty much goes with any flux change. Yes to the proper solvent for the flux you choose. Check with the Kester Data Sheets. Kester should have some application sheets which include some No-Clean information.
Electronics Forum | Fri Mar 28 21:54:54 EST 2003 | MA/NY DDave
Hi Notice they do call out that you should use their thinner. In the MSDS you get a clue as to the thinner they are mostly using with some additives. http://www.kester.com/PDF%20FILES/PDF%20Data%20Sheets/E%20No-Clean%20Fluxes/951%20(30Mar98)logo.p
Electronics Forum | Tue Jul 24 20:16:13 EDT 2001 | davef
We don't believe that water is thin enough to clean a uBGA. Given your telecom biz, what cleanliness standard do you use? How do you measure it? And how often do you check it? What are your in-bound materials cleanliness standards? [Oooo, I gues
Electronics Forum | Sat Jul 28 10:51:38 EDT 2001 | nifhail
I'm curious over what would happen if we continue to use the WS paste when dealing with uBGA. Definitely the cured flux under uBGA package couldn't be cleaned/reached and as I understand correctly they are corrosive. if that so, how long do you guys
Electronics Forum | Wed Jul 25 10:46:36 EDT 2001 | Steve
Most of the problems that you will find with NC is visual. I have not found or heard of any real evidence that NC causes component or board failures. The residue has extremely high resistance, which actually gets higher as time goes on. It's a paradi
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