Patent ID: 8008203
Filing Date: 2011-08-30
Classification: B24B,H01L

Abstract:
1. A polishing method, wherein a polishing platen being made of quartz and having a lattice-shaped groove on its front surface is used, and the groove is filled with solid photocatalytic particles, and while pressing a to-be-polished surface of a substrate made of silicon carbide (SiC) or diamond to the front surface of the polishing platen with a high pressure, applying ultraviolet radiation from a back surface of the polishing platen to the to-be-polished surface of the substrate through the polishing platen, and heating at least one of the front surface of the polishing platen and the to-be-polished surface of the substrate by the application of infrared radiation, the substrate is polished by relatively rubbing the substrate against the polishing platen.