SILICON MONOXIDE VAPOR DEPOSITION MATERIAL, AND PROCESS, RAW MATERIAL AND APPARATUS FOR PRODUCING THE SAME
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United States of America Patent
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app pub date -
Sep 7, 2006
filing date -
Aug 31, 2000
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Abstract
A high-purity silicon monoxide vapor deposition material which, in the formation of a film by vapor deposition, is effective in inhibiting splashing, and which has an average bulk density of 2.0 g/cml and a Vickers hardness of 500 or higher; a process for producing a high-purity silicon monoxide vapor deposition material consisting of SiO and metal impurities as the remainder, the total amount of the impurities being, 50 ppm or smaller, which comprises conducting a degassing, treatment in a raw-material chamber at a temperature lower than the sublimation temperature of silicon monoxide, raising the temperature to sublimate silicon monoxide, and depositing the silicon monoxide on a substrate in a deposition chamber. and a raw material for the silicon monoxide vapor deposition material which comprises silicon metal particles and silicon dioxide particles, the average particle size of each particulate material being I to 40 .mu.m and/or the two particulate
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