Homebrew PCBs

--- In Homebrew_PCBs@yahoogroups.com, "mihai_hagianu"
<mihai_hagianu@y...> wrote:
> 
> 
> 
> 
> Hi,
> 
> has anyone ever tryed electro-etchig for PCBs ? 
> What chemicals/ setup should be used? what pros and contras are in it?
> 
> thank you,
> mihai

I tried EDM on PCB's a year ago and while you can do very fine traces
( for BGAs and the like ), it is a VERY slow process, even when you
use post process etching to remove large copper areas.

TT and H202 enhanced CuCl is the way to go!

Curt