Patent ID: 6217429
Filing Date: 2001-04-17
Classification: B24B

Abstract:
A conditioner head to condition the polishing surface of a polishing pad, comprising:a disk having a first abrasive surface to contact a polishing pad, a second surface opposite the first surface, and a plurality of cavities provided around a periphery of the disk, the cavities formed in the second surface and extending only partly toward the first surface;a disk holder to carry the disk and to hold the abrasive surface in contact with the polishing pad, the disk holder having a generally flat mounting surface to contact the second surface, and a plurality of holes provided around a periphery of the disk holder corresponding to the plurality of cavities formed in the disk, the holes extending through the disk holder;a plurality of screws inserted through the plurality of holes into the plurality of cavities to secure the disk to the disk holder; anda drive element to rotate the disk about an axis.