Patent ID: 9460893
Filing Date: 2016-10-04
CPC Classification: C23C,H01J

Claim Text:
1. A substrate processing apparatus for performing a process on a substrate disposed within a processing chamber by supplying a gas to the substrate, the apparatus comprising: a gas introducing unit configured to supply one kind of gas or different kinds of gases to a center region and an edge region of the substrate, wherein the gas introducing unit comprises: a center gas inlet section having a multiple number of gas holes for a center gas to be supplied toward the center region of the substrate; an edge gas inlet section having a multiple number of gas holes for an edge gas to be supplied toward the edge region of the substrate and surrounding the center gas inlet section; and an edge gas discharging position adjusting unit configured to adjust a horizontal position or a vertical position from which the edge gas is discharged through the gas holes of the edge gas inlet section, the edge gas discharging position adjusting unit being a separate member from the edge gas inlet section, wherein the edge gas discharging position adjusting unit includes a multiple number of gas openings, the edge gas discharging position adjusting unit is disposed below the edge gas inlet section and is not disposed below the center gas inlet section, such that a bottom surface of the edge gas discharging position adjusting unit is located same as or lower than a bottom surface of the center gas inlet section, centers of the multiple number of gas openings coincide with centers of the multiple number of gas holes for the edge gas, and the center gas inlet section and the edge gas inlet section are formed as a single body.