Hi, Virginia Semiconductor in America can provide single crystal Si wafers to a thickness of 5 micron. They should be able to supply the wafers you are after . Regards, Mike Rosa. At 09:35 19/11/98 +0900, you wrote: >Hi. >You may want to contact Mr. Michael Boyle at Bontronix in America. >925-947-2664 (fax/tel) >They may be able to help you with the spec. >Good luck. > >-Y.K. > >Adam Cohen wrote: > >> Dear Colleagues, >> >> We are seeking a source for a small quantity of SOI wafers with a Si >> thickness of about 50 microns for deep silicon RIE. We would prefer 4" >> diameter wafers, but other sizes may be acceptable. Substrate/overall >> thickness should be as large as possible. >> >> As an alternative to these, we are considering bonding a 50-micron Si wafer >> to glass. Does anyone know good sources for thin wafers and flat glass >> substrates, and someone who can do the bonding? >> >> If anyone has any leads, we'd much appreciate it. >> >> Thanks very much, >> >> Adam Cohen >> University of S. California >> > > > > > >