Make a capacitor out of it and measure the capacitance. A small disk should work just be sure your disk is smaller than the masked area you are measuring so the edge effects are the same every time. Gordon Gordon Couger gcouger@couger.com Owner PRAG-L PRactical AGriculture List www.couger.com/prag-l Stillwater, OK 405 624-2855 GMT -6:00 -----Original Message----- From: Ramadas, PadmajaTo: MEMS@ISI.EDU Date: Saturday, January 23, 1999 7:58 PM Subject: Equipment for measuring thick polymers >I am looking for equipments that can measure thick resist more than 30 um upto 100um or more on silicon wafers. I would appreciate any directions I can have on it. > >Thank you, > >Regards, > >Padmaja > > >