Dear Sir, For the second question you will find the answer in the Silicon - Gold phase diagram. Au/Si is an eutectic compound for 19% Si with eutectic temperature of 363°C. In a first approach you will have no alloy under 300°C. Best regards. yi-chu hsu wrote: > Hi everybody, > > I am a graduate student at U. of Washington and My lab is developing a new > design. The design needs a vertical film of mirror on the surface of the > stucture, NOT a horizontal layer. > > I have two questions: first, how can we make a vertical film of gold > on the top of surface. Second, I am told that silicon and gold will > become alloy and all my structure will be destroyed. Does anyone know > at what temperature polisilicon and gold will become alloy? > > Thank you! > Yi-Chu > > ******************************************** > Yi-Chu Hsu > yichu@u.washington.edu > > TEL: (206) 523-4471 > ******************************************** > > -- Olivier de Gabrielli - Coordinateur Scientifique A. C. M. I. Association Capteurs, Mesure et Instrumentation. Centre Universitaire de Formation et de Recherche d'Archamps Immeuble "Le Salève" F - 74166 ARCHAMPS - France Tel: 33 (0)450 31 55 10 Fax: 33 (0)450 31 57 21 mailto:odegabrielli@c4i.fr mailto:acmi@c4i.fr http://www.c4i.fr/welacmi/acmi.html _________________________________________________________