Patent ID: 6669538
Filing Date: 2003-12-30
Classification: B24B

Abstract:
A method of cleaning a fixed-abrasive polishing pad, comprising:providing a rinse fluid at a rinse fluid pressure at least about 300 psi to a plurality of nozzles; delivering the rinse fluid from the nozzles to a fixed-abrasive polishing pad at a first angle between about 5Â° and about 85Â° measured between a centerline of the rinse fluid delivered from the nozzles and the surface of the fixed-abrasive polishing pad to enhance removal of debris lodged on the fixed-abrasive polishing pad; and directing the rinse fluid from the nozzles to the fixed-abrasive polishing pad at a second angle between about 5Â° and about 85Â° measured between the centerline of the rinse fluid delivered form the nozzles and a pad radius defined from a center to an edge of the fixed-abrasive polishing pad to direct dislodged debris to a perimeter of the fixed-abrasive polishing pad.