Hi. First, I want to ask about the contacting pressure in the anodic bonding. I have read some paper saying that mechanical pressure would not be so important in anodic bonding. But, other paper say that high pressure to press wafers would be important. Dose pressure matter much in anodic bonding? If then, how much pressure is needed? Secondly, I tried bonding Pyrex with a-Si layer which was from PECVD. But, I could not get a bonding. I know that some people bonded Pyrex with a-Si or Poly-Si layer which was from LPCVD. But, I would like to use PECVD deposited a-Si layer. Is there someone who has a experience of anodic bonding between pyrex to a-Si layer from PECVD? Is it possible to get a bond between pyrex to a-Si layer from PECVD anyway? Thanks. Best Regards, Chang ===== Chang-Hwan Choi Brown University Division of Engineering, Box D 182 Hope Street, Providence, RI 02912, U.S.A. Tel: (401)351-3915(H), (401)863-3011(O) Fax: (401)863-9028 Email: chchoi@rocketmail.com URL: http://myhome.naver.com/4chchoi __________________________________________________ Do You Yahoo!? Yahoo! Auctions - buy the things you want at great prices http://auctions.yahoo.com/