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Subject: Re: SMT boards: assembly and potting Q
Date: Tue, 24 Dec 2002 02:14:47 -0500
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Or you can buy the water soluble stuff as well.
What about just using a normal oven?
"Mike Shonle" wrote in message
> RE 2, I saw something about using a toaster-oven for reflow soldering (it
> was on the web site of some board fab house (I don't recall the name now)
> that also made solder templates (for around US$150, maybe a bit steep).
> "Robert Baer" wrote in message
> > I am hand assembling surface mount parts on a PCB.
> > It is not easy to get chip resistors to align nicely, and SOT-23 parts
> > are the worst.
> > 1) What is the best way to keep alignment of these parts for hand
> > soldering?
> > 2) If hand soldering is not recommended, what is the least expensive way
> > to assemble these parts at home (ie what do i get and where)?
> > When completed, i would like to pot them, but need to keep ions and
> > moisture, as these units are for voltages up to 2KV.
> > I also am worried about mechanical stresses due to temperature cycling
> > from (say) -55C to 150C.
> > I think a conformal coating first may be best.
> > 3) What is the best potting compound and method to use?
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