Service Brought To You By http://WWW.DWP.NET -------------------------------------------- Hello, Does anyone know of any structural or chemical problems, etc with using dichlorosilane or silicon tetrachloride instead of silane to make polysilicon? I am concerned with chlorine incorporation, but suspect it will be driven off at low temperatures. Thanks for any info you can supply! Regards Tel :(06)2757575-62681-268 Fax : (06)2344496 Add. : Department of chemical engineering National Cheng Kung University Tainan 70101, Taiwan