Patent ID: 6364749
Filing Date: 2002-04-02
Classification: B24B

Abstract:
A chemical mechanical polishing surface for chemically mechanically polishing a semiconductor surface comprising:a substrate having a first surface; a plurality of protrusions extending from the first surface of the substrate so as to extend a selected distance from the substrate, wherein the plurality of protrusions define a polishing surface that engages with the semiconductor wafer so as to chemically mechanically polish the semiconductor wafer and wherein the protrusions define cavities being positioned therebetween and wherein each cavity has a plurality of side surfaces and a bottom surface wherein the side surfaces and the bottom surface of the cavities comprise exposed hydrophilic surfaces that attract liquid into the cavities adjacent the polishing surface defined by the plurality of protrusions so as to facilitate liquid flow through the cavities and increase the wetting of a semiconductor surface during chemical mechanical polishing.