Patent ID: 11915938
Assignee: KOKUSAI ELECTRIC CORPORATION
Field: Surface technology, coating (Chemistry)
Classification: CPC C  H | IPC C  H

Claim 15:
16. A substrate processing apparatus, comprising:
a process chamber configured to accommodate a substrate;
a gas supply system configured to supply a first gas, which contains a metal and a halogen, a first reducing gas which contains silicon and hydrogen and does not contain a halogen, and a second gas into the process chamber;
an exhaust system configured to exhaust an interior of the process chamber; and
a controller configured to be capable of controlling the gas supply system and the exhaust system to form a metal-containing film on the substrate by sequentially performing:
(a) supplying a first gas, which contains a metal and a halogen, and a first reducing gas, which contains silicon and hydrogen and does not contain a halogen, to the substrate in a process chamber by setting an internal pressure of the process chamber to a value in a predetermined pressure range, wherein (a) includes a time period of simultaneously supplying the first gas and the first reducing gas and a time period of supplying the first gas;
(b) removing first gas and the first reducing gas that remain in the process chamber;
(c) supplying the second gas to the substrate; and
(d) removing the second gas remaining in the process chamber.