Patent ID: 8415237

Claim:
A method of manufacturing a semiconductor device, comprising: containing a substrate into a processing chamber; and processing the substrate by supplying a plurality of reaction substances into the processing chamber, wherein at least one of the plurality of reaction substances contains a source gas obtained by vaporizing a liquid source by a vaporizing part, in processing the substrate, a solvent capable of dissolving the liquid source is continuously flowed to the vaporizing part, and a vaporizing operation, in which the liquid source is supplied to the vaporizing part and the liquid source is vaporized, is intermittently performed, and at a time other than a time of performing the vaporizing operation and every time the vaporizing operation is performed a prescribed number of times, a flushing operation, in which the solvent is flowed to the vaporizing part at a flow rate larger than a flow rate of the solvent flowed at the time of the vaporizing operation, is performed.