Patent ID: 11866819
Assignee: SEMES CO., LTD.
Field: Surface technology, coating (Chemistry)
Classification: CPC C  B | IPC B  C

Claim 0:
1. A surface treatment apparatus comprising:
a chamber having a treatment space therein;
an exhaust line configured to evacuate the treatment space;
a support provided in the treatment space and configured to support an object to be treated;
a nozzle configured to spray particles or a gas to the object at a supersonic speed;
a moving stage configured to move the nozzle or the object relative to each other;
a main supply line configured to supply first particles to the nozzle; and
a controller configured to,
control the nozzle to remove contaminants on a surface of the object based on a collision of the first particles with the contaminants by spraying the first particles at the supersonic speed on to the surface of the object and controlling the moving stage to move the object or the nozzle relative to each other, and
subsequently control the nozzle to blow residues remaining on the surface of the object by stopping supply of the first particles and spraying the gas on to the surface of the object.