Electronics Forum | Wed Jun 14 17:17:53 EDT 2006 | SMTRookie
I'm looking for a No Clean low or an ultra low flux residue solderpaste (SAC305 and Sn/Pb). Any Recommendation? Is there something in the datasheet that will tell if a solder paste is really a low residues flux. Also is there a method to clean the
Electronics Forum | Wed Apr 27 13:49:11 EDT 2005 | Shean Dalton
Hi Sarag, We share Sara's described experience with cleaning No-Clean/Low Residue flux residues. We can add that of the Low Residue residues, Indium SMQ92J is one of the more challenging flux residues to clean. That said, we have had repeated succ
Electronics Forum | Tue Jun 20 06:39:02 EDT 2006 | Julien VITTU (STMicro)
I'm using a lead free solder paste, low residue from SENJu among all the pastes I've tried it is the best I've found. you can ask for any type of alloy, but request the 729C flux type. kind regards
Electronics Forum | Mon Apr 23 12:30:42 EDT 2007 | davef
Your low residue flux may not be compatible with the soldermask
Electronics Forum | Thu Oct 11 19:31:58 EDT 2007 | davef
We'd probably hand solder these coils with low residue fluxed wire solder, after cleaning.
Electronics Forum | Tue Mar 06 09:18:33 EST 2001 | davef
Two things: 1 Go to IPC and buy "TP-1115 - Selection & Implementation Strategy for A Low-Residue No-Clean Process - Provides direction to electronics manufacturers interested in adopting low residue (LR) assembly technology. It addresses the concern
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 | Sat Nov 21 09:39:01 EST 2009 | patrickbruneel
Dave, I would only agree with you when you talk about low residue (water based) fluxes. In low residue (alcohol based) fluxes you can use non water soluble acids, so in the event you still have flux residues on the board water has no effect on them.
Electronics Forum | Wed Jul 14 11:26:51 EDT 2010 | davef
Probably, you need to make the same presentation to your customer that you made to your boss when you proposed changing to low-residue fluxes. Hey boss [customer], here's what's GREAT about low-residue flux. Here's how we can: * Lower our unit cost
Electronics Forum | Sat May 31 09:49:55 EDT 2008 | gregoryyork
physically lift board of after fluxing to visually see what is covered, or using thermal fax paper to get to see coverage works well. PROPER low residue or no residue fluxes leave benign insulating residue behind not corrosive.
