Patent ID: 7455575
Filing Date: 2008-11-25
Classification: B24B

Abstract:
1. A polishing pad cleaner comprising: a nozzle support plate; a plurality of nozzles that spray streams of cleaning agent, respectively, the nozzles mounted to the nozzle support plate and projecting from the bottom of the nozzle support plate, whereby the nozzles have ends spaced from the bottom of the nozzle support plate and from which ends cleaning agent issues from the nozzles; and a respective partition interposed between the nozzles of each adjacent pair of the nozzles, each said partition projecting from the bottom of the nozzle support plate beyond the ends of the nozzles, wherein the plurality of nozzles include first and second groups of nozzles, and further comprising first and second reservoirs containing different types of cleaning agents disposed in communication with the first and second groups of nozzles, independently and respectively, whereby the first and second groups of nozzles eject different types of cleaning agents.