Does anybody have experience with, or know of work on the fabrication of silicon dioxide membranes/diaphragms in silicon wafers ? Is this possible with thermally grown oxide 1 micron thick, if the membranes are sufficiently small? Thank you, Tony Rogers Applied Microengineering Ltd 68 Milton Park, Abingdon, OXON, OX14 4RX, UK. Tel: +44 (0) 1235 833 934 Fax: +44 (0) 1235 833 935 WWW: http://www.aml.co.uk e mail: aml@aml.co.uk