Patent ID: 11880099
Assignee: SEMES CO., LTD.
Field: Optics (Instruments)
Classification: CPC G  C | IPC G

Claim 0:
1. A substrate treating apparatus comprising:
a substrate floating unit configured to float a substrate;
a gripping member configured to grip the substrate on the substrate floating unit;
a nozzle unit located above the substrate floating unit and configured to discharge a treatment liquid to a top surface the substrate in a first direction; and
an impurity removal unit configured to remove impurities in the substrate floating unit,
wherein the substrate floating unit includes:
a stage in which a plurality of holes are provided in an upper surface thereof, the gripping member moving the substrate on the stage in a second direction perpendicular to the first direction; and
a pressure provision member configured to provide a positive pressure or a negative pressure to an upper portion of the stage through the holes,

wherein the impurity removal unit includes:
a body;
a plurality of pressure reduction holes formed in the body;
a pressure reduction member configured to provide pressure reduction to the pressure reduction holes; and
a driver configured to move the body between a removal location and a standby location,

wherein the removal location is provided in a region corresponding to the stage, and the standby location is provided in an external region of the stage, and
wherein, in a plan view, the nozzle unit overlaps with the stage, such that, during the discharge of the treatment liquid, the nozzle unit, the substrate, and the stage are sequentially arranged in the first direction.