Deposition of silicon dioxide and silicon oxynitride using bis(t

Semiconductor device manufacturing: process – Coating of substrate containing semiconductor region or of... – Insulative material deposited upon semiconductive substrate

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438790, 438794, 427 99, 4272552, H01L 21318

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active

059769912

ABSTRACT:
A process for the chemical vapor deposition of silicon dioxide and silicon oxynitride from reactant gases O.sub.2, O.sub.3, N.sub.2 O, NO, NO.sub.2, NH.sub.3 and a silane of the formula: (t-C.sub.4 H.sub.9 NH).sub.2 SiH.sub.2. A process whereby a stack of silicon containing dielectrics ranging from silicon nitride to silicon oxide may be deposited successively (at the same pressure and temperature) by changing the reactants O.sub.2, O.sub.3, N.sub.2 O, NO, NO.sub.2, NH.sub.3 while maintaing a constant flow of (t-C.sub.4 H.sub.9 NH).sub.2 SiH.sub.2. The films are suitable for use in the semiconductor and related industries.

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