Patent ID: 11913115
Assignee: TOKYO ELECTRON LIMITED
Field: Surface technology, coating (Chemistry)
Classification: CPC C | IPC C

Claim 4:
5. A substrate processing method of rotating an injector about a longitudinal direction corresponding to a rotational axis by rotating a windmill in a substrate processing apparatus,
wherein the substrate processing apparatus includes: a processing container; the injector provided inside the processing container and having a shape extending in the longitudinal direction, the injector configured to supply a processing gas; a holder fixed to the injector; the windmill fixed to the holder; a first driving-gas supplier configured to supply a driving-gas that rotates the windmill in a first direction; a second driving-gas supplier configured to supply the driving-gas that rotates the windmill in a second direction opposite the first direction; and a driving-gas controller configured to control the supply of the driving-gas from the first driving-gas supplier and the second driving-gas supplier,
the windmill is rotated through the supply of the driving-gas from at least one of the first driving-gas supplier and the second driving-gas supplier under a control of the driving-gas controller, and
the method comprises:
alternately performing, in a state in which the processing gas is supplied into the processing container from the injector, processes of:
rotating the injector in the first direction by supplying the driving-gas to the windmill from the first driving-gas supplier;
rotating the injector in the second direction by supplying the driving-gas to the windmill from the second driving-gas supplier; and
supplying the driving gas from the at least one of the first driving-gas supplier and the second driving-gas supplier while the rotation of the injector is stopped by two pins near the holder.