Patent ID: 7914613

Claim:
A liquid processing apparatus, comprising: an apparatus main body which comprises: 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; a power room separated from the clean room by a partition member and having a separate atmosphere; an air suction path configured to suction an air in the clean room and take the air into the power room; a temperature control part provided in the power room and configured to control at least a temperature of the air taken in via the air suction path; an air supplying path configured to supply the air from the temperature control part to the liquid processing unit; a ventilation part, present in the power room, configured to take the air from the air suction path and supply the air via the air supplying path; and a cleaning filter, present in the power room, configured to clean the air taken in from the air suction path; wherein the air suction path and the air supplying path include concentric pipes or a double pipes structure having the air suction pipe for taking in the air in the clean room and the air supplying pipe for supplying the air to the liquid processing unit.