Patent ID: 7223157
Filing Date: 2007-05-29
Classification: B24B

Abstract:
1. A chemical mechanical polishing apparatus, at least comprising: a polishing platen, wherein the polishing platen has a surface with a plurality of slurry outlets thereon; a polishing pad disposed on the polishing platen; a slurry supplying piping connected to a bottom of the polishing platen for delivering slurry from underneath of the polishing platen to a polishing pad surface through the slurry outlets; a polishing pad conditioner disposed over the polishing pad; a chemical reagent supplying piping connected to the polishing pad conditioner for supplying a chemical reagent to the polishing pad conditioner; and a splitting piping connected between the slurry supplying piping and the chemical reagent supplying piping for delivering the chemical reagent to the polishing pad surface through the chemical reagent supplying piping, the slurry supplying piping and the slurry outlets.