Patent ID: 8945412
Filing Date: 2015-02-03
Classification: H01L,Y10S

Abstract:
1. A substrate cleaning method of a substrate cleaning apparatus for removing fluorocarbon-based polymer adhered to an end portion of a substrate having a top surface and a bottom surface, the substrate cleaning apparatus including: a heating unit for heating the end portion of the substrate whose bottom surface is placed on a mounting table; an ultraviolet application unit for applying ultraviolet to the end portion of the substrate; and a gas flow forming unit, all units being disposed below the bottom surface of the substrate near the end portion so as to surround the substrate, wherein when the end portion of the substrate is cleaned by the substrate cleaning apparatus, the end portion of the substrate is heated by the heating unit and, then, the ultraviolet is applied to the end portion of the substrate by the ultraviolet application unit without generating a plasma while providing a gas flow by using a gaseous mixture of inactive gas and O wherein the gaseous mixture has an O wherein when applying the ultraviolet to the end portion of the substrate by the ultraviolet application unit, the ultraviolet from the ultraviolet application unit is blocked by a blocking member so that the ultraviolet is prevented from reaching a top surface of the substrate, the blocking member being disposed to surround the heating unit, the ultraviolet application unit, the gas flow forming unit, and a periphery of the substrate.