Patent ID: 7713582
Filing Date: 2010-05-11
Classification: C23C

Abstract:
1. A film-forming method comprising: providing a substrate to be film-formed in a reaction chamber of an apparatus comprising: the reaction chamber; a first gas supply pipe in fluid communication with the reaction chamber for carrying a first processing gas to the reaction chamber; a second gas supply pipe in fluid communication with the reaction chamber for carrying a second processing gas to the reaction chamber; a gas reservoir in fluid communication with the first gas supply pipe; and a bypass line in fluid communication with the first gas supply pipe, the bypass line bypassing the gas reservoir by directing the first processing gas to the reaction chamber without passing through the gas reservoir; and alternately supplying the first processing gas and the second processing gas into the reaction chamber a plurality of times to form a film on the substrate, wherein; when the first processing gas is supplied, the gas reservoir or the bypass line is selected to supply the first processing gas into the reaction chamber through the first gas supply pipe, and when the second processing gas is supplied the second processing gas is supplied through the second gas supply pipe.