OK Sorry to all I'm getting in on this late but ,better late then never
Then again!!!
Any way if what we are trying to do is just plate the trace.
then look here www.digikey.com in the search punch in part# 182-1010-nd
take a peek it may not be what everybody wants but it may be what some
people need. or want , or then again ,maybe not!! :-).
I do hope this helps a bit .
regards
victor
----- Original Message -----
From: "Alan King" <alan@...>
To: <Homebrew_PCBs@yahoogroups.com>
Sent: Saturday, November 15, 2003 3:12 AM
Subject: Re: [Homebrew_PCBs] Re: Tin eletroplating
> roel_cnc wrote:
>
> > Hi,
> >
> > some testing done with sulfuric acid and normal solder wire as anode
> > I uploaded a few photo's shown the huge tank and the result :))
> > http://www.xs4all.nl/~atmel/fotos/album1.html
> > the 1st result was get cristals on the surface after bagging the
> > tin in a coffee filter makes much better result
> > also the voltage as low as 2 volts helps
> > i like to use the tin as a resist for etching (in future)
> > it solder real easy components on so gonna use it as anti oxidize for
> > copper (instead of a flux)
> > just have to hot weld another pvc tank for it
> > any sugests always welcome
> > the little red tank is 5 x 5 cm :) filled with dim water and only a
> > few drips of acid
> >
>
> Those results look very promising. Do exactly what you've done and
> plate a raw copper board. Then do the toner iron on. Then use the
> board as the + to plate some junk, to strip the uncovered tin then the
> copper. Then finish etch the small remaining copper in FeCl. Wipe with
> acetone to remove the toner and you should have a nice tin plated etched
> board with little fuss. That would make it well worth having both the
> mild sulfuric acid and FeCl3 solutions around. May still not be worth
> the extra time and steps for just test boards, but would be very nice
> for long term items.
>
> May need two plating solutions, since the second will end up
> with both copper and tin in it, so would plate both copper and tin the
> second time around if it were used for the plating. Plating just to the
> copper board should leave the first with only tin in it. But a mix may
> not be a problem anyway. Also I'll try
> some silver solder to see if that works, may make an even better finish
> with a little silver added instead of just tin.
>
> Alan
>
>
>
>
>
>
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