Patent ID: 8853100
Filing Date: 2014-10-07
Classification: C23C,H01L

Abstract:
1. A film formation method for obtaining a thin film by performing, a plurality of times, a cycle in which different process gases are supplied one after another while revolving a substrate placed on a turntable within a vacuum chamber and depositing a molecular layer of a reaction product composed of aluminum nitride or silicon nitride, comprising: supplying a first process gas as a source gas for obtaining the reaction product to the substrate while rotating the turntable and revolving the substrate; supplying a second process gas as a gas for nitriding the first process gas adsorbed to the substrate to the substrate in a position spaced apart along a circumferential direction of the turntable from a position where the first process gas is supplied to the substrate; providing a separation region along the circumferential direction of the turntable between a first process gas supply position from which the first process gas supplied and a second process gas supply position from which the second process gas supplied as to prevent mixing of the first process gas and the second process gas; and irradiating ultraviolet rays on the molecular layer of the reaction product formed on the substrate placed on the turntable to control stresses generated in the thin film.