发明授权
US07192626B2 Methods for producing silicon nitride films and silicon oxynitride films by thermal chemical vapor deposition 有权
通过热化学气相沉积制造氮化硅膜和氧氮化硅膜的方法

Methods for producing silicon nitride films and silicon oxynitride films by thermal chemical vapor deposition
摘要:
Silicon nitride film is formed on substrate by feeding trisilylamine and ammonia into a CVD reaction chamber that contains a substrate. The ammonia gas/trisilylamine gas flow rate ratio is set to a value of at least about 10 and/or the thermal CVD reaction is run at a temperature no greater than about 600° C. Silicon oxynitride is obtained by introducing an oxygen source gas into the CVD reaction chamber. This method avoids the production of ammonium chloride and/or the incorporation of carbonaceous contaminants which are detrimental to the quality of the deposited film.
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