Patent ID: 11869778
Assignee: SEMES CO., LTD.
Field: Environmental technology (Chemistry)
Classification: CPC H  B  C | IPC B  C  H

Claim 0:
1. An apparatus for processing a substrate, the apparatus comprising:
a housing having a processing space inside;
a support unit configured to support the substrate in the housing;
a nozzle configured to dispense a processing liquid onto the substrate supported on the support unit; and
a liquid supply unit configured to supply the processing liquid to the nozzle, wherein the liquid supply unit includes:
a container having a storage space in which the processing liquid is stored;
a liquid supply tube through which the processing liquid flows from the container to the nozzle; and
an ultrasonic-wave application member configured to apply ultrasonic waves to the processing liquid before the processing liquid is supplied to the nozzle,
wherein the ultrasonic-wave application member includes:
a liquid reservoir having an interior space in which a liquid is received;
an ultrasonic generator configured to apply ultrasonic waves to the liquid received in the liquid reservoir; and
an electromagnetic field generator configured to generate an electromagnetic field in the liquid supply tube,

wherein part of the liquid supply tube is immersed in the liquid received in the liquid reservoir and the electromagnetic field generator is provided in the liquid reservoir,
wherein an area of the liquid supply tube that is immersed in the liquid received in the liquid reservoir includes:
a first tubular portion through which the processing liquid flows upward;
a second tubular portion that is connected to the first tubular portion and through which the processing liquid flows in a direction perpendicular to the first tubular portion; and
a third tubular portion that is connected to the second tubular portion and through which the processing liquid flows downward, and
wherein the electromagnetic field generator is disposed only on the third tubular portion.