Method of manufacturing semiconductor device
View Patent ↗A substrate processing apparatus, a method of manufacturing a semiconductor device, and a method of confirming an operation of a liquid flowrate control device are provided. The substrate processing apparatus comprises: a process chamber accommodating a substrate; a liquid source supply system supplying a liquid source into the process chamber; a solvent supply system supplying a solvent having a vapor pressure greater than that of the liquid source into the process chamber; a liquid flowrate control device controlling flowrates of the liquid source and the solvent; and a controller controlling the liquid source supply system, the solvent supply system, and the liquid flowrate control device so that the solvent is supplied into the liquid flowrate control device than the solvent supply system to confirm an operation of the liquid flowrate control device before the liquid source supply system supplies the liquid source into the process chamber.
1. A method of method of manufacturing a semiconductor device, the method comprising:
supplying a solvent into a liquid flowrate control device connected to a process chamber;
monitoring the liquid flowrate control device to measure a flowrate of the solvent flowing into the liquid flowrate control device;
comparing the measured flowrate of the solvent to a predetermined threshold value;
removing the solvent from the process chamber when the flowrate of the solvent is in a range of the predetermined threshold value;
vaporizing a liquid source supplied by disposing the liquid flowrate control device to supply the vaporized gas into the process chamber; and
alternately supplying an reaction gas reacting with the vaporized gas to form a predetermined film on a surface of a substrate placed in the process chamber.