Electronics Forum | Sat Oct 06 08:32:09 EDT 2001 | davef
Mr. Wizard is not currently available. You get the wizzer. Maybe your dream date will show later. Get your own lab tests done. Show your potential customer that your boards are clean. That�s the issue. The issue is not how you go about cleaning
Electronics Forum | Fri Oct 12 14:32:52 EDT 2001 | Mike Konrad
Hi, Maybe Yes� Maybe No� Actually, it most likely is acceptable to clean assembled boards in an ultrasonic cleaning system (40 kHz). There are some concerns in some circles about possible damage to wire bonds in components. There have been publi
Electronics Forum | Thu Apr 18 17:00:05 EDT 2002 | JamesL
We do cleanliness testing each morning using a Zero Ion tester. Our pass/fail number is set at 37ug/square inch NaCl. We are rarely above 10ug/square inch NaCl. We use Aqueous flux. Our inline washer has a prewash (70psi@130 degrees F), wash (?psi),
Electronics Forum | Mon Sep 09 13:46:34 EDT 2002 | dragonslayr
Your lack of obvious solder balls indicates you have a decent process. However, there are still small solder balls that are free and floating on the surface of the boards prior to wash. That same solder ball is washed off and ends up in the wash solu
Electronics Forum | Wed Sep 25 09:24:54 EDT 2002 | caldon
Michael- Please when concidering you U-sonic machine, keep in mind possible chemistries Petroferm, Kyzen, Aqueous technologies, and Zestron products. All are good products and all need to be evaluated with your stencils. Depending on your component t
Electronics Forum | Tue May 18 09:13:08 EDT 2004 | E Wolf
I'd like to follow the thread discussed on assembly. Hope Everyone is ok with that. I do run into the problem (have it now) that Ionic cleanliness is requested by print on a no-clean assembly. My intention is to use the no-clean to skip the aqueou
Electronics Forum | Fri Feb 07 09:27:07 EST 2003 | davef
For all of the ranting about "sales-types" using the forum inappropriately, it's nice that some of those types get IT. So if you rant when people behaving poorly, then you must praise people when perform well. This is over-due. Hats off to Mike,
Electronics Forum | Thu Feb 27 13:50:55 EST 2003 | Matt Kehoe
We use an Aqueous Technologies Millennium III closed loop system. The footprint is no more than 12-13 feet. We wash water soluble solder paste residue with excellent results however, due to the nature of our solid solder deposit process, we are washi
Electronics Forum | Tue May 20 12:35:45 EDT 2003 | Mike Konrad
This probably a reflow issue, not a cleaning issue. Although ultrasonic cleaners are not normally used in post-reflow applications (fear of internal wire bond damage), I have never heard of broken solder joints caused by an ultrasonic cleaning syst
Electronics Forum | Wed Jun 04 13:40:41 EDT 2003 | caldon
You may have answered your own question. CHEMISTRY, CHEMISTRY, CHEMISTRY depending on what type and whos product will work differently for each machine and Board geometry. I would ask Kyzen, Pertoferm, Zestron, and Aqueous Tech (all Chemistry manuf
