The pressure tolerance will depend on many things such as whether the membrane is round, 15 microns thick and 1 light year in diameter or 15 microns square and 1 nm thick. It will also depend on the membrane material and the support. Roger Shile -----Original Message----- From: mems-talk-bounces@memsnet.org [mailto:mems-talk-bounces@memsnet.org] On Behalf Of rahul goswami goswami Sent: Thursday, October 01, 2009 1:37 AM To: mems-talk@memsnet.org Subject: [mems-talk] pressure sensor membrane characterization hi! i have to characterize my pressure sensor membrane for up to 10 bar. What is the procedure? How much pressure would a 15 micron membrane withstand? rahul