Luis,

Perhaps you might try www.compart-tech.co.uk or www.planoptik.com
 or www.us.schott.com
These companies sell thin glass sheets or glass wafers.
Good luck and happy new year
Peter

Vienna University of Technology
Institute of Sensor and Actuator Systems
Gusshausstrasse 27-29/366
A-1040 Vienna
Austria

Tel. +43-1-58801-36643
Fax  +43-1-58801-36699



Luis Lopes wrote:

> The main problem with microscope cover slides is the tipe of glass.
> This slides are made of borosilicate glass which have a volume
> resistivity of 10E15 Ohm cm at room temperature, compared with the one
> of soda lime glass 10E13 Ohm cm. This high volume resistivity makes de
> use of borosilicate glass impossible in our aplication.
>
> The main question from my point of view; is, why I don't find soda
> lime glass with thickness inferior to 0.4 mm. These thickness is a
> mechanical limit? Or for some other reasons the manufacturers prefere
> to make thin glass with borosilicate  instead of soda lime?
>