Hello, I am interested in the experience of the community on the issue of stress (compressive or tensile), and stress gradient (normal to the wafer surface), in the various approaches to silicon-on-insulator material (bonded silicon, oxygen implanted, et cetera). Effects of doping type and SOI surface silicon and buried oxide layer thicknesses on this stress also are of interest. Thanks, Al --- Albert K. Henning, PhD Director of MEMS Technology NanoInk, Inc. 215 E. Hacienda Avenue Campbell, CA 95008 408-379-9069 ext 101 ahenning@nanoink.net