Patent ID: 9058977
Filing Date: 2015-06-16
Classification: H01L

Abstract:
1. A substrate cleaning apparatus for cleaning a surface of a substrate, comprising: a substrate holding mechanism configured to hold and rotate the substrate; a cleaning member having a lower-end contact surface; a member configured to hold the cleaning member and move the cleaning member in one direction while said cleaning member is being rotated about a vertically extending rotational axis; and a cleaning liquid supply nozzle configured to supply a cleaning liquid to the surface of the substrate; wherein said cleaning member is configured to scrub-clean the surface of the substrate by rubbing said lower-end contact surface of said cleaning member against the surface of the substrate which is being rotated by the substrate holding mechanism in a horizontal plane in the presence of the cleaning liquid; said cleaning member has an inverted truncated-cone shape wherein the angle α between said lower-end contact surface and a straight line on an outer circumferential surface of said cleaning member is larger than 90° and is not more than 150°; and said cleaning member is moved in said one direction while the rotational axis of said cleaning member is inclined in the same direction as the moving direction of said cleaning member.