Patent ID: 6241587
Filing Date: 2001-06-05
Classification: B24B

Abstract:
A dislodging system for dislodging polishing by-product particles from the surface of a polishing pad of a chemical mechanical polishing machine used to polish semiconductor wafers, comprising:a polishing pad of a chemical mechanical polishing machine having a textured surface to carry a slurry;a nozzle that operates at a megasonic resonant frequency to produce and output an extremely agitated stream of fluid, wherein said extremely agitated stream of fluid is used to dislodge polishing by-product particles from said textured surface of said polishing pad of said chemical mechanical polishing machine, wherein said extremely agitated stream of fluid is not a slurry;a mounting attachment coupled to said nozzle, said mounting attachment further coupled to said chemical mechanical polishing machine and for maintaining close proximity of said nozzle with said textured surface of said polishing pad;a fluid line coupled to said nozzle, said fluid line for conveying a fluid to said nozzle; anda fluid source coupled to said fluid line, said fluid source for providing said fluid to said nozzle.