Electronics Forum | Tue Apr 13 19:47:05 EDT 2004 | davef
Glue has different mechanical, thermal, and electrical properties than solder. That's why all these very nice no-lead people are furiously trying to gin-up some wacky solder alloy, rather than using glue. Among the papers in the SMTA Knowledge base
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 | 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 13:12:10 EST 2003 | barryg
We are going to be using a no-clean paste (smt)and no clean wave solder flux on a small pcb we will be doing here soon. As far as the wave process, should i purchase a new fluxer stone for the no-clean. Should I also purchse the recommended thinner o
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 | 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 | 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 | Wed Jul 02 03:12:31 EDT 2003 | Joanna
We have been having problems with solder paste balls around fine pitch ICs and have decided that cleaning the boards in an ultra sonic cleaner may reomove these solder balls. However we are worried that the ultrasonic cleaning process may damage the
Electronics Forum | Mon Oct 30 21:43:08 EST 2006 | davef
So, after the repair of a BGA, you notice white reside on a nearby connector. Correct? [Sorry we're so dense. Long day.] Tell us about: * Flux class used in repair * Flux class used in original assembly Why are you baking the assembly after repair
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