We are able to produce silicon wafers with a 10  to 25 microns thick
SiO2 layer in a optical quality for planar wave-guides:
Contact:
Sico Meiningen Wafer Gmbh
Germany
Tel +49 3693 71313
Fax + 49 3693 71315
Ms. Peggy Nauert


Richard A. Brown wrote:

> Does anyone know where I can get ~8 microns of SiO2 deposited on
> some 4" wafers ?
>
> (We could do it here by LPCVD, but with 3% silane it would take a very
>
> long time...  Spin-on glass is certainly an option, but for these
> wafers
> I'd prefer to avoid it.)
>
> Thanks in advance,
>
> - r.
> ----
>