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

previous by date index next by date
previous in topic topic list next in topic

Subject: Re: [Homebrew_PCBs] photoresist sensibility chart ref UV wavelength - PCB LDI using a PS3 diode

From: Markus Zingg <homebrew-pcb@...>
Date: 2008-06-12

IMHO it should work, but you are aware that you would have to expose
every pixel for quite a while with the beam and thus the overal exposing
time would be alot higher. I mean I would love to look at such an
aproach etc.

Just my 2ยข

Markus

dandumit schrieb:
>
> Hi,
>
> Does anybody has access to the sensibility chart related to wavelength
> of exposing light source ?
> I would like to know if a KES-400AAA PS3 laser module
> (http://www.fineartradiography.com/hobbies/lasers/blu-ray/
> <http://www.fineartradiography.com/hobbies/lasers/blu-ray/>) would be
> usable to directly expose the photoresist from a pcb.
> This laser diode has a wavelength of 405nm (it's not uv is near uv)
> but maybe it would impress the resist from pcb at an acceptable
> exposure time.
>
> Any comments are greatly appreciated.
>
> Daniel
>
>