Hello all, I am attempting to produce 50um x 50um optical waveguides from silca-based spin- on glass (SOG). I have access to a thermosetting polysiloxane glass resin from Techneglas, GR651L, but I would like to know what are the best spinning and baking processes to yield a 50um thick glass layer. --- David Chang-Yen Institute for Micromanufacturing Louisiana Tech University Ruston, LA 71270 Get 250 color business cards for FREE! http://businesscards.lycos.com/vp/fastpath/