Archive of the former Yahoo!Groups mailing list: Homebrew PCBs

Thank you very much, I have receibe your answers.
Off course, I will tell you the results. I will take me a time, because I
first need the UV lamp.
I have heared about the light of the sun at midday, but i prefer an UV lamp.
Best regars,
José



-----Mensaje original-----
De: Adam Seychell [mailto:adam_seychell@...]
Enviado el: Domingo, 08 de Febrero de 2004 08:24 a.m.
Para: Homebrew_PCBs@yahoogroups.com
Asunto: Re: [Homebrew_PCBs] Photoresist




José wrote:

> Dears,
> I have a cuestion:
> I would like to make my own photoresist.
> Someone knows a home-method?
> Regards,
> José from Argentina
>

Here are two introductory links on positive resists.


http://dot.che.gatech.edu/henderson/introduction_to_dnq-novolac__resists.htm


http://www.ee.washington.edu/research/microtech/cam/PROCESSES/PDF%20FILES/Ph
otoresistPos.pdf

Let us know how you come along making photoresist at home :)

No seriously, I think the closest you'll get to making photoresists at
home
is to go through some old photography books and learn how they used to
make
before the days of organic synthesis. I recall gelatin and silver nitrate
as being some of the ingredients they use to use.

Adam.



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