We use Precision Glass & Optics . Their wafers start at
4" diameter (no flat) and 700 um thick. Machining them differently
increases the price (sometimes prohibitively).

Jesse Fowler
  UCLA/MAE Dept., 420 Westwood Plaza, Room 18-121, ENGR IV
  Los Angeles, CA 90095-1597 | (310)825-3977
"Rule #6: There is no rule #6" -- Monty Python
"ARTICLE SIX:  THIS ARTICLE IS ABOLISHED" -- Constitution of Afghanistan

On Wed, 27 Feb 2002, Xinyu Li wrote:

> Dear Colleagues,
>
> Would you please tell me where I can buy some 4'' glass wafers.
>
> Thanks.
>
> Xinyu Li, PhD
> Senior Scientist
> Bioprocessors
> 35-C Cabot Road
> Woburn, MA 01801
> Tel: (781)935-1400 ext. 18
> _______________________________________________
> [email protected] mailing list: to unsubscribe or change your list
> options, visit http://mail.mems-exchange.org/mailman/listinfo/mems-talk
> Hosted by the MEMS Exchange, providers of MEMS processing services.
> Visit us at http://www.mems-exchange.org/