Hi, all: Does anyone have experience on processing techniques for apply layer of polyethylene or polypropylene materials on silicon wafers. The issues I want to know include: 1. What type of process I can use? Can I use spin-on just like for applying photoresist or polyimide? 2. Is there any suppliers of the polyethylene and polypropylene for MEMS applications? 3. It will be highly appreciated if you can provide some references. thank you very much Lijun __________________________________ Do you Yahoo!? SBC Yahoo! DSL - Now only $29.95 per month! http://sbc.yahoo.com