On Fri, Feb 28, 2003 at 05:49:00AM -0800, Charles Eisnor enlightened us thusly
If you are prototyping, use a fibre glass pencil; it's a brush in a
propelling pencil mechanism usually used found with pcb
manufacturing/prototyping kit.
--
With best Regards,
Declan Moriarty
> Hi Syd,
>
> A number of years ago I read in a H-P Lab Notes publication that a mix of
> alcohol and houshold ammonia was ideal for super cleaning boards. I think the
> ammonia was present in 20% concentration. From experience I can tell you that
> ethyl acetate is a far better solvent than alcohol to remove most organic solder
> fluxes. Its considerably less toxic than the trichloroethylene that was used for
> years as a flux remover and degreaser. Only problem with it is you must be sure
> it doesn't dissolve any plastic component coverings! With both the ammonia and
> the ethyl acetate one must use adequate ventilation.
>
> Hope this helps.
>
> Chuck Eisnor
>
>
> "Syd Levine (AnaLog)" wrote:
>
> > I am working on a high voltage shunt regulator design where contamination on
> > the circuit board is causing problems. What is the best way to scrub or
> > rinse all or most of the ionic contamination off a circuit board? I usually
> > use denatured alcohol to remove flux residue, but that is not good enough in
> > this case. Any suggestions or wisdom would be much appreciated.
> >
> > Here is a link to the Data Sheet on the little project:
--
Author: Declan. Moriarty
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