Electronics Forum | Mon Apr 29 10:42:47 EDT 2002 | Jim M.
I had problems with white residues on both WS609 and WS 3060.The WS 3060 turned out to be a carbonized material.The composition after analysis (Energy Dispersive X-ray spectrum) turned out to be tin,tin,phosphore and cloline and tin. Alpha also have
Electronics Forum | Thu Nov 15 15:27:50 EST 2012 | davef
Finally, help for those searching for compatibility A new standard and guideline will make it much simpler for users to determine whether they’ve got the right chemistry to ensure compatibility. April 23, 2012 By Terry Costlow, IPC online edit
Electronics Forum | Sun May 25 10:30:31 EDT 2008 | necdetozyonum
Dear All, I would like to take your opinion about the result that we have faced after cleaning the PC assemblies in a cleaning machine (Miele Dishwasher) with the cleaning detergent Qualitek Everkleen 1005. We use DI water for cleaning purpose in t
Electronics Forum | Mon Apr 22 16:55:42 EDT 2002 | russ
Greetings All, Anybody out there experiencing white residues after cleaning? We currently use a batch cleaner to clean water soluble fluxes. this cleaner makes its own DI water by means of carbon and resin tanks. After cleaning there are residues
Electronics Forum | Tue Apr 23 14:20:48 EDT 2002 | russ
We have not yet sent this out for analysis, So, I don't really know what it is. initial evaluation would lead me to believe that it is flux since it is only present on the solder joints themselves and nowhere else. I noticed that you also mentioned
Electronics Forum | Thu Oct 28 11:41:21 EDT 2004 | Steve Stach
Hello Loz, Blue residues on circuit boards can be caused by copper corrosion, component body deterioration, marking permanently, and adhesive break down. In this case, a more subtle mechanism appears to be possible. This is a no clean application
Electronics Forum | Wed Oct 27 09:39:54 EDT 2004 | loz
Hi all, been recently wave soldering some pcbs with no problems and have now noticed what looks like blue residues on some solder joints. We have been running this product for around six months and this is the first time we have seen this. It is rand
Electronics Forum | Tue Aug 01 20:31:39 EDT 2006 | aespino
Does anybody knows if there is any reaction if I clean OA solder/flux residues using Isopropilic Alcohol? Is there any chemical recomended to clean residues manually instead of using a washing machine.
Electronics Forum | Thu Jan 18 15:28:10 EST 2007 | CK the Flip
If you are, in fact, running a No-Clean solder paste: Different no-clean solder pastes will leave different types of (benign) residues. If your paste has been qualified from a Bellcore/SIR/Electromigration standpoint, any residues remaining will NO
Electronics Forum | Thu Jan 18 12:30:19 EST 2007 | slthomas
Change pastes, although insufficient heating may leave excessive residues. Is this on one board or all products? No Clean or water soluble? Do you profile accurately or "guesstimate" your settings?
