Electronics Forum: residues (Page 1 of 175)

residues

Electronics Forum | Tue Aug 22 09:30:18 EDT 2000 | gdiepstraten

With the introduction of new lead-free alloys and higher temperatures to meet their specifications, can we expect different and/or more residues in the reflow soldering process?

White residues

Electronics Forum | Mon May 26 08:59:32 EDT 2008 | davef

It's possible that the flux residues from the solder paste used in your SMT process is not compatible with your water wash process. For instance, some no-clean fluxes leave resudues that are not water washable. When these residues are washed, they de

White residues

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

White residues

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

Re: residues

Electronics Forum | Tue Aug 22 10:58:20 EDT 2000 | Dr. Ning-Cheng Lee

I do not expect that we will see increased residue volumes, but they may be a bit more difficult to remove (in a cleaning process). A related issue is probe-testability. We can expect, at least initially, that there will be higher defect rates asso

White residues

Electronics Forum | Mon Apr 22 21:07:41 EDT 2002 | davef

Buy different paste.

White residues

Electronics Forum | Mon May 26 11:02:17 EDT 2008 | jandon

Hi Mr. Necdet Ozyonum, Recently we did have same kind of problems when we use lead free reflow profile for leaded solder paste (AIM WS-483). There where solder resist lacks, we found white residue after aqueous cleaning. Not in the solder joints but

White residues

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

White residues

Electronics Forum | Mon Apr 22 18:09:14 EDT 2002 | pjc

Lots of good info on this subject in the SMTnet forum archives. Please search on your topic.

White residues

Electronics Forum | Mon Apr 22 21:10:07 EDT 2002 | davef

Russ: What is the composition of this non-ionic material on your pads?

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