Electronics Forum | Fri Apr 02 06:26:13 EST 2004 | Phil James
Take a look at the downloadable paper on the subject of "White residues" available from NPL www.npl.co.uk/ei (Downloads) By the way, we also suffer from this problem!
Electronics Forum | Fri Apr 02 12:40:59 EST 2004 | Ron Herbert
White residue can often be caused by overheating the flux. When this occurs the flux is polymerized, basically turning it into an epoxy. You can usually determine if this is the problem by taking a pencil eraser to it. If it comes off, you have overh
Electronics Forum | Mon Apr 05 08:21:14 EDT 2004 | Grant Petty
Hi, Thanks for the tip, and I will check that out! We have some heavy BNC type connectors, so they need a bit of heat, and this could be right that we are then overheating the flux. Regards, Grant Blackmagic Design
Electronics Forum | Mon Feb 08 09:14:37 EST 2010 | baildl632
davef: Thanks for the guidance! I am new to the sight and hope to gleen some usefull information for our line for better quality!
Electronics Forum | Mon Jul 17 12:36:32 EDT 2017 | aqueous
Aqueous Technologies (that's us) www.aqueoustech.com Austin American Technology www.aat-corp.com Technical Devices www.technicaldev.com Hope this helps! Mike konrad@aqueoustech.com
Electronics Forum | Thu Jan 18 05:37:24 EST 2007 | HC
Wondering if anyone is using cleaning solutions that are safe to use and store, and don't cost an arm and a leg. Cleaning tasks would include solder paste stencil cleaning, misprinted PCB cleaning, flux cleaning after rework, and so on and so forth.
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 | Thu Jun 26 10:02:06 EDT 2008 | rdnggbsss1
I am a PCB Designer and I have to put a note on the assembly drawing to tell the assembler how to clean the board. This is new to me. Here is a sample note. Can someone give me some feedback on it? "Use water washable, no clean solder paste for t
Electronics Forum | Fri Feb 05 14:29:14 EST 2010 | kaz
the board in question is from Foba Laser Engraver, it's a surface contamination coming from.. everywhere, a lot of moving parts that are lubricated. I'm now studding chemicals that we may use for our kind of rework & cleaning. We may think of modifyi
Electronics Forum | Wed Dec 17 10:25:47 EST 2003 | blnorman
I may have asked this question before but couldn't find anything when I ran a search. Question, after ultrasonically cleaning our boards we bake them out to drive off residual moisture. Current requirement is 24 hours @ 105�C. I seem to remember a
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