Patent ID: 8038769

Claim:
A liquid processing method using a liquid processing apparatus, the liquid processing apparatus including an apparatus main body, the apparatus main body having: a liquid processing unit provided in a clean room and configured to supply a chemical solution to a substrate and perform a liquid process; a heating unit configured to perform a heating process on the substrate before or after the liquid process is performed by the liquid processing unit; and a transferring part configured to transfer the substrate between the heating unit and the liquid processing unit; the liquid processing method comprising: a step of suctioning air in the clean room and taking the air into a power room having an atmosphere separated from the clean room by a partition member; a step of controlling a temperature of the air taken in via the air suction path in the power room; a step of supplying the air whose temperature is controlled to the liquid processing unit; a step of suctioning the air from the air suction path and supplying the air via the air supplying path; and a step of cleaning the air taken in from the air suction path; wherein the air suction path and the air supplying path are formed by either an internal space of an internal pipe of a double pipe or a space between the internal pipe and an external pipe of the double pipe.