Patent ID: 10640869

Abstract:
A method of manufacturing a semiconductor device, includes: supplying precursor gas into process chamber in which plural substrates are accommodated by sequentially performing: supplying inert gas at first inert gas flow rate from first nozzle into the process chamber; supplying the inert gas at second inert gas flow rate higher than the first inert gas flow rate from the first nozzle into the process chamber while supplying precursor gas from the first nozzle into the process chamber; and supplying the inert gas at the first inert gas flow rate from the first nozzle into the process chamber while the process chamber is evacuated from an upstream side of flow of the precursor gas; stopping supply of the precursor gas; removing the precursor gas remaining in the process chamber; supplying reaction gas from a second nozzle into the process chamber; and removing the reaction gas remaining in the process chamber.