Patent ID: 11923188
Assignee: KOKUSAI ELECTRIC CORPORATION
Field: Surface technology, coating (Chemistry)
Classification: CPC C  H | IPC C  H

Claim 18:
19. A substrate processing apparatus comprising:
a process chamber in which a substrate is processed;
a first supply system configured to supply an inert gas from a first supplier to the substrate in the process chamber;
a second supply system configured to supply a first processing gas from a second supplier to the substrate in the process chamber;
a third supply system that is configured to supply an inert gas from a third supplier to the substrate in the process chamber;
a fourth supply system that is configured to supply a second processing gas from a fourth supplier to the substrate in the process chamber, wherein the third supplier is installed at an opposite side of the first supplier with respect to a straight line that passes through the second supplier and a center of the substrate in the process chamber, the straight line being interposed between the first supplier and the third supplier, and the first supplier and the third supplier being disposed in line symmetry with the straight line as a symmetry axis, wherein the first supplier, the second supplier and the third supplier are parallel to each other; and
a controller configured to be capable of controlling the first supply system, the second supply system, and the third supply system so as to perform a process of forming a film on the substrate by supplying the inert gas from the first supplier, supplying the first processing gas from the second supplier, and supplying the inert gas from the third supplier to the substrate provided in the process chamber, wherein in the forming a film, a substrate in-plane film thickness distribution of the film is adjusted by controlling a balance between a flow rate of the inert gas supplied from the first supplier and a flow rate of the inert gas supplied from the third supplier.