Patent ID: 11879171
Assignee: DENSO CORPORATION
Field: Surface technology, coating (Chemistry)
Classification: CPC C | IPC C

Claim 6:
7. The semiconductor manufacturing device according to claim 1, wherein:
the thin film formation portion forms a silicon carbide thin film as the thin film on a silicon carbide substrate that is the substrate;
the plurality of supply gas units include a first supply gas unit configured to introduce a silicon supply gas including a silicon raw material and a second supply gas unit configured to introduce a carbon supply gas including a carbon raw material;
the first supply gas unit
includes, as a part of the plurality of supply pipes,
a supply pipe configured to introduce a silicon source gas from a silicon source gas introduction source that is a part of the gas introduction source and
a supply pipe configured to introduce an etching gas of a silicon from an etching gas introduction source that is the part of the gas introduction source and

includes ,as the raw material flow rate controller, an etching gas flow rate controller; and

the etching gas flow rate controller includes
a flow rate controller for controlling a large flow rate for an etching gas supply and
a flow rate controller for controlling a small flow rate for the etching gas supply.