Anisotropic glass etching is difficult if you want to go deeper than a
micron.  I worked at Cornell several years ago on isotropic glass etching
with Prof. Harold Craighead.  He has also worked on some anisotropic etching
and may be a good resource.

Regards,

Peter

At 09:08 PM 3/1/99 -0500, you wrote:
>Hi,
>
>I wonder if I could get some advice from you. Does anybody has done
>something on glass (e.g. Pyrex or Corning #7740) etching
>anisotropically?
>
>Thanks a lot!
>
>Jean.
>
>
>
>
>
>