Patent ID: 11972934
Assignee: KOKUSAI ELECTRIC CORPORATION
Field: Surface technology, coating (Chemistry)
Classification: CPC H  C | IPC C  H

Claim 19:
20. A substrate processing apparatus, comprising:
a process container in which at least one substrate is processed;
a support configured to support the at least one substrate in the process container;
a film-forming gas supply system configured to supply a film-forming gas to the at least one substrate accommodated in the process container;
an oxidizing gas supply system configured to supply an oxidizing gas into the process container;
a transport device configured to transfer the at least one substrate into and out of the process container; and
a controller configured to be capable of controlling the film-forming gas supply system, the oxidizing gas supply system, and the transport device so as to perform a set a plurality of times, the set including:
(a) loading the at least one substrate into the process container;
(b) performing a process of forming a nitride film on the at least one substrate by supplying the film-forming gas to the at least one substrate supported by the support in the process container;
(c) unloading the processed at least one substrate from an interior of the process container; and
(d) supplying the oxidizing gas into the process container from which the processed at least one substrate has been unloaded so as to oxidize one part of the nitride film formed inside the process container in (b) into an oxide film and maintain another part of the nitride film, which is different from the one part of the nitride film, as it is without oxidizing the another part.