Hello everyone, My name is Yazan and I'm in the process of developing a fabrication process for a capacitive MEMS switch! The switch membrane is made of gold, and rests on a YBCO Coplanar Waveguide on a LaAlO substrate. I need to have a 3 micrometer airgap between the membrane and the CPW, could anyone please tell me if I can use PMGI as a sacrificial layer and also where I can get specs and pricing information about that?! Any suggestions or helpful info. will be greatly appreciated! Thanking you in Advance Yazan Hijazi Future AeroSpace Science and Technology Center for Space Cryoelectronics @ FIU Miami,Fl. Make a great connection at Yahoo! Personals. http://personals.yahoo.com