Homebrew PCBs

isn't this done by silkscreen printing?
all i know a about this is that you have a screen which is coated with photoresist.
this has to be exposed pretty much like a pcb.
then you can apply the color from the top (with a roller??).

this can't be too difficult if you can get the material.
i know of people having done t-shirt printing this way.

as you are in .ch:
http://www.altesspital.ch/i_werken.html they have "siebdruck" equipment, maybe try to ask them where 
they get it?

there are (quite big) screens at ebay.de for two additional days from now... maybe have a look.


i found something much better: (more familiar)
there is also a optical method:
http://www.peters.de/saved/ref149d.htm
i assume you speak german.
in principle it is applying a laquer and then exposing it.
afterwards the unwanted parts are developed off with sodium carbonate or alcohol.
then it is hardened.

seems quite simple.
as i don't want to make this (no need) i don't search further. please tell us if you find better 
descriptions/sources.

regards
stefan


22.05.2003 20:27:11, Markus Zingg <m.zingg@...> wrote:

>Hi all
>
>I would like to hear from you guys if it's possible to create a
>professional looking solder stop mask for PCB's. Is there a foil or
>such that could be laminated and photochemically treated etched or
>something? Anything possible? Marty do you have an idea?
>
>Markus
>
>
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