I have bought down to 0.2mm 4x4" sheets Schott borosilicate from S.I. Howard Glass. They are pretty painless to work with, but maybe not if you are outside the US. Shipping without breakage can be a challenge. http://www.howardglass.com/D263.html Linas. -----Original Message----- From: mems-talk-bounces@memsnet.org [mailto:mems-talk-bounces@memsnet.org] On Behalf Of gillot Sent: Saturday, December 31, 2005 10:14 PM To: General MEMS discussion Subject: [mems-talk] .3/.5 mm thick glass Dear List, Happy new year ! I am looking for plate glass with a thickness of .3 or .5 mm to be sputtered, but it seems that it doesn't exist on earth...