Patent ID: 9096928
Filing Date: 2015-08-04
Classification: C23C

Abstract:
1. A method of manufacturing a semiconductor device, the method comprising: forming, in a state that a process vessel houses a substrate holder formed by coating a SiC film on a surface of a carbon base material or a Si-impregnated SiC base material through a CVD process, a silicon oxide film on the surface of the substrate holder by repeatedly performing supplying and exhausting a silicon-containing gas into and from the process vessel, to thereby form a silicon-containing layer on the surface of the substrate holder, and supplying and exhausting an oxygen-containing gas and a hydrogen-containing gas into and from the process vessel under an atmosphere having pressure below atmospheric pressure, to thereby change the silicon-containing layer into a silicon oxide layer; supplying and exhausting, in a state that a substrate is held by the substrate holder whose surface has the silicon oxide film formed thereon in the process vessel, a process gas into and from the process vessel, to thereby form a thin film other than the silicon oxide film on the substrate; supplying and exhausting, in a state that the substrate holder after repeatedly performing the thin film formation is housed in the process vessel, a fluorine-containing gas into and from the process vessel, to thereby remove deposits including the thin film attached onto the substrate holder; and reforming, in a state that the substrate holder after removal of the deposits is housed in the process vessel, a silicon oxide film on the surface of the substrate holder after removal of the deposits by repeatedly performing supplying and exhausting the silicon-containing gas into and from the process vessel, to thereby form a silicon-containing layer on the surface of the substrate holder after removal of the deposits, and supplying and exhausting the oxygen-containing gas and the hydrogen-containing gas into and from the process vessel under an atmosphere having pressure below atmospheric pressure, to thereby change the silicon-containing layer into a silicon oxide layer, wherein forming the silicon oxide film, removing the deposits, and reforming the silicon oxide film are performed without the substrate supported by the substrate holder.