Patent ID: 9138854
Filing Date: 2015-09-22
Classification: B24B

Abstract:
1. A polishing apparatus comprising: a substrate-holding mechanism configured to hold a substrate and rotate the substrate; a polishing mechanism arranged above the substrate, said polishing mechanism being configured to apply a pressing force to a polishing tape from above a flat portion of a periphery of an upper surface of the substrate to press the polishing tape against the flat portion so as to polish the flat portion of the periphery of the upper surface; a polishing-tape supply mechanism configured to supply the polishing tape to said polishing mechanism; a moving mechanism configured to move said polishing mechanism in a radial direction of the substrate held on said substrate-holding mechanism; and a pressing-force adjustor configured to adjust the pressing force of said polishing mechanism in accordance with a radial position of said polishing mechanism so as to keep the pressing force constant.