Patent ID: 11927886
Assignee: SEMES CO., LTD.
Field: Semiconductors (Electrical engineering)
Classification: CPC G  B  H | IPC B  G  H

Claim 0:
1. A method for treating a substrate using a substrate treating apparatus, wherein the substrate treating apparatus comprises a first substrate support member, a second substrate support member, a nozzle arm moving between the first substrate support member, a plurality of nozzles mounted on the nozzle arm, and the second substrate support member, and a purge port located in a route of moving the nozzle arm between the first substrate support member and the second substrate support member, wherein the substrate is treated by discharging a treatment liquid from one of the plurality of nozzles to the substrate supported by the first substrate support member or the second substrate support member, wherein at least one purge nozzle moves to be vertically arranged with the purge port, the at least one purge nozzle performs a purge operation by discharging the treatment liquid to the purge port while the nozzle arm moves toward one of the first substrate support member and the second substrate support member after the one of the plurality of nozzles discharges the treatment liquid to the substrate located in another one of the first support member and the second support member, wherein the at least one purge nozzle is at least one of the plurality of nozzles and excluded from the nozzle to discharge the treatment liquid to the substrate located in the another one of the first support member and the second support member, wherein the at least one purge nozzle performs the purge operation a preset number of times from the same purge nozzle in a process of moving the nozzle arm between the first substrate support member and the second substrate support member multiple times.