Patent ID: 11887870
Assignee: SEMES CO., LTD.
Field: Semiconductors (Electrical engineering)
Classification: CPC H  B | IPC B  H

Claim 0:
1. A liquid supply unit for supplying a liquid comprising:
a tank having an inner space for storing the liquid;
an inlet line for supplying the liquid from a liquid supply source to the inner space and having an inlet valve installed thereon;
an outlet line for supplying the liquid from the tank to a nozzle or for recollecting the liquid to the tank and having an outlet valve installed thereon;
a gas supply line for supplying a gas to the inner space and having a gas control valve installed thereon;
an exhaust line for exhausting the inner space and having an exhaust valve installed thereon;
a circulation line for circulating the liquid stored in the inner space; and
a controller configured to control the liquid supply unit so that the circulation line is pressurized while the liquid is supplied to the inner space.