Patent ID: 11937763
Assignee: DISCO CORPORATION
Field: Chemical engineering (Chemistry)
Classification: CPC A  H  B | IPC A  H

Claim 7:
8. A cleaning method for cleaning a cleaning target face that is one of a holding face for holding a workpiece and/or a surface of the workpiece held on the holding face, by using a cleaning nozzle,
the cleaning nozzle including:
an air nozzle having a jet port for jetting air toward the cleaning target face and extending in a direction parallel to the cleaning target face, and
a suction nozzle having a suction port for sucking air existing on the cleaning target face and arranged adjacent to and in parallel to the air nozzle,

the cleaning method comprising:
a placement step of placing the cleaning nozzle above the cleaning target face in parallel to the cleaning target face with a gap left therebetween; and
a cleaning step of jetting, while linearly moving the cleaning target face relative to the cleaning nozzle placed by the placement step in a direction, which is both parallel to the cleaning target face and perpendicular with an extension direction of the cleaning nozzle, air from the jet port and sucking the air reflected by the cleaning target face through the suction port to clean the cleaning target face, wherein the suction port of the suction nozzle is arranged on an upstream side with respect to the jet port of the air nozzle in the direction of the movement of the cleaning target face with respect to the cleaning nozzle and wherein the jet port is a hole which is perpendicular to the cleaning target face wherein the cleaning nozzle remains stationary during the cleaning step.