Patent ID: 6439972
Filing Date: 2002-08-27
Classification: B24B,C09G

Abstract:
A method for polishing a workpiece comprising:introducing a polishing fluid between the workpiece and a polishing implement; and effectively moving the polishing implement and the workpiece relative to one another; wherein the polishing fluid comprises: a distributed organic phase and a continuous aqueous phase, the aqueous phase having at least one complexing agent selected from the group consisting of diethylene-tetra-penta-acidic acid, ethylene di-amine tetra acetic acid and a combination thereof, and abrasive particles dispersed therein, and the organic phase having at least one complexing agent, wherein reaction products generated during polishing interact with the aqueous phase complexing agent(s) to form water soluble metallic complexes, the water soluble metallic complexes diffuse to an organic/water interface where they release complexing agent molecules in the aqueous phase and interact with the organic phase complexing agent to form organometallic complexes in the organic phase.