Hi guys, As MEMS-talk member I would like to ask few questions. I hope you guys will help me. 1) Is there any way I can attach one Si-wafer on top of other OR one Si-wafer on top of glass wafer. 2)I need some help in fabrication of MEMS thermopiles, if anyone of you has done it or know about it plz let me know so that I can get more info about the same. 3) How can I create front and back etched vacuum cavities in wafers. Thanks in Advance __________________________________________________ Do you Yahoo!? Yahoo! Tax Center - File online, calculators, forms, and more http://tax.yahoo.com