Patent ID: 8992287
Filing Date: 2015-03-31
Classification: B24B,B24C

Abstract:
1. A slurry distribution system for a chemical mechanical polishing tool, comprising: a mixing tank configured to generate a polishing mixture comprising a diluted slurry mixture having abrasive particles that enable mechanical polishing of a workpiece; a transport piping configured to transport the polishing mixture between the mixing tank and a chemical mechanical polishing (CMP) tool, wherein the transport piping comprises a first tube and a second tube; a valve manifold box comprising one or more valves configured to selectively provide the polishing mixture to the CMP tool, wherein the first tube and the second tube are configured to separately transport the polishing mixture between the mixing tank and the valve manifold box; one or more stimulating elements extending along a majority of the length of the transport piping; and an energy source configured to transfer energy to the abrasive particles by way of the one or more stimulating elements, thereby preventing accumulation of the abrasive particles within the transport piping.