Patent ID: 11059145

Abstract:
A dressing apparatus 200 includes a bus member 203 which is equipped with a ceiling plate 201 and a circular or polygonal cylindrical skirt portion 202 provided at a bottom surface of the ceiling plate 201 and which is configured to accommodate a polishing pad 131 from thereabove. The bus member 203 includes a dual fluid nozzle 204 configured to jet a cleaning liquid and a gas onto a polishing surface of the polishing pad 131; a dress board 205 configured to come into contact with the polishing surface of the polishing pad 131; and a rinse nozzle 206 configured to supply a rinse liquid onto a contact surface between the polishing surface of the polishing pad 131 and the dress board 205. A cleaning liquid, a fragment of a grindstone or a sludge is suppressed from being scattered around by the skirt portion 202.