Hmm... sure is a lot more complicated that the old days where we grabbed a
bottle of Trichloroethylene and an acid brush and went to the sink and
washed it all off... In fact we made a degreaser using Trichlor and it
worked great! Took off the toughest flux residues... 
Too bad it's outlawed now... Or MEK (Methyl Ethyl Ketone) worked pretty good
too. Ahhh.. the good ol' days... 

:)


Bill 
-----Original Message-----
From: Brian Guralnick [mailto:[EMAIL PROTECTED] 
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]



 
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