Patent ID: 8598023

Claim:
A method of manufacturing a semiconductor device comprising: performing a first cleaning of a semiconductor substrate; performing a first drying of the semiconductor substrate after performing the first cleaning; forming a resist pattern on the semiconductor substrate after performing the first drying; forming a well in the semiconductor substrate by implanting ions of an impurity into the semiconductor substrate by using the resist pattern as a mask; removing the resist pattern; performing a second cleaning of the semiconductor substrate after removing the resist pattern; performing a second drying of the semiconductor substrate after performing the second cleaning; and forming a gate insulating film on the semiconductor substrate after performing the second drying, wherein at least any of the first drying and the second drying are performed by supplying a gas set to have a concentration in which a dew point of organic solvent becomes lower than 20° C. in a pipe made of resin, allowing the gas to pass through the pipe while heating the gas at a temperature equal to or above 20° C. and lower than 100° C. at which degas is generated from the pipe, and then, supplying the heated gas from the pipe, and exposing the semiconductor substrate to the heated gas to dry the semiconductor substrate.