Patent ID: 8927440
Filing Date: 2015-01-06
Classification: C23C,H01L

Abstract:
1. A film deposition apparatus that is provided to obtain a thin film by laminating layers of reaction product by repeating a plurality of cycles of sequentially supplying a plurality of types of process gases that mutually reacts in a vacuum atmosphere, the film deposition apparatus comprising: a turntable that is arranged inside a vacuum chamber and receives the substrate on the turntable to cause the substrate to orbitally revolve; a plurality of process gas supplying portions for supplying mutually different process gases to separated areas separated in peripheral directions of the turntable; a separation gas supplying portion for supplying a separation gas which separates the mutually different process gases; and an evacuating mechanism for evacuating an inside of the vacuum chamber so as to be a vacuum, wherein at least one process gas supplying portion of the plurality of process gas supplying portions extends between a peripheral portion of the turntable and a central portion of the turntable, the at least one process gas supplying portion includes a gas nozzle having gas discharge ports arranged in a longitudinal direction of the at least one process gas supplying portion for discharging one process gas of the mutually different process gases toward the turntable and a current plate provided on an upstream side of a rotational direction of the turntable from the gas nozzle and along the longitudinal direction of the gas nozzle to allow the separation gas to flow onto an upper surface of the current plate, and wherein the current plate is provided so that a gap between the current plate and the turntable is gradually decreased from one end on a central side of the turntable to another end on a peripheral side of the turntable, and the gap at said another end is smaller than the gap at said one end by 1 mm or greater.