i sort of remember hearing bad things about ultrasonic cleaners affecting ic wire bonds or is that ancient history
fond memories of good old RMA and freon Dennis Saputelli _______________________________________________________________________ CONTACT INFORMATION: _______________________________________________________________________ Integrated Controls, Inc. Tel: 415-647-0480 EXT 107 2851 21st Street Fax: 415-647-3003 San Francisco, CA 94110 www.integratedcontrolsinc.com _______________________________________________________________________ NOTE! TO PASS OUR SPAM FILTER PUT THE FOLLOWING IN SUBJECT LINE: I.C.I. Paul Heilman wrote: > My method was steam cleaning followed by an ultrasonic bath in methanol, > then a bake at 60 C for two hours. > > The first steam cleaner used was the foaming wand on the espresso > machine. Later we purchased a steam cleaner from, of course, > steamcleaners.com. > > We then test with high humidity, a glass of hot water, and a 9 volt > source. > > Our original problem was leakage at the inflection point in an > environmental chamber, as the chamber stopped cooling, all the water > evaporated off the coils and took the relative humidity to 100%. > Particularly on our unit that was colder than the environment and had > condensation. > > -----Original Message----- > From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] > On Behalf Of Brian Guralnick > Sent: Friday, December 15, 2006 5:46 AM > To: Protel EDA Discussion List > Subject: Re: [PEDA] "No-clean" flux leakage, was: (500V power supply) > > Ok, my method of re-cleaning no-clean flux.... > > Use an electronic sonic tooth-brush going through a flux-cleaning > solvent cycle, then, windex cycle, then, hot water cycle, then back to > windex. > Windex was chosen since it completely evapourates & take any water with > it. > > This was the only way I could completely remove any electrical effect > left by the no-clean flux. > > Note that I was measuring effect in the micro-amp & nano-amp regions > where battery powered circuits, eg-32Khz oscilators, super-low powered > radio recievers, have a measurable effect. > > ______________________ > Brian Guralnick > Vergent Technologies Inc. > 438 Brahms Ave. > Dollard Des Ormeaux > Quebec, Canada > H9G 2S6 > (514) 624-4003 > [EMAIL PROTECTED] ____________________________________________________________ You are subscribed to the PEDA discussion forum To Post messages: mailto:[email protected] Unsubscribe and Other Options: http://techservinc.com/mailman/listinfo/peda_techservinc.com Browse or Search Old Archives (2001-2004): http://www.mail-archive.com/[email protected] Browse or Search Current Archives (2004-Current): http://www.mail-archive.com/[email protected]
