Patent ID: 6159288
Filing Date: 2000-12-12
Classification: B05C,Y10S

Abstract:
An apparatus for a substrate treatment, comprising:a spin chuck for rotatably supporting a rectangular substrate for a liquid crystal display device;a cup section surrounding the substrate held by said spin chuck;a coating solution supply mechanism for supplying a coating solution onto the substrate rotated by said spin chuck for forming a resist coating film on the substrate;an edge remove nozzle for blowing a cleaning liquid against the coating film at a peripheral portion of the substrate;a suction mechanism for removing by suction the coating solution dissolved by the blowing of the cleaning liquid from said edge remove nozzle from the peripheral portion of the substrate; andcleaning means for blowing a cleaning liquid against an inner surface of said cup section for removing attached materials from the inner surface of the cup section;wherein said substrate treating apparatus further comprises:an edge remover tank communicating with said suction mechanism;a drain tank communicating with said cup section; anda circulation system communicating with each of said drain tank, said edge remover tank and said cleaning means so as to supply a cleaning liquid from each of said drain tank and said edge remover tank to said cleaning means.