POLISHING PADS WITH POLYMER FILLED FIBROUS WEB, AND METHODS FOR FABRICATING AND USING SAME

摘要

A polishing pad having a body comprising fibers embedded in a matrix polymer formed by a reaction of polymer precursors. The fibers define interstices, a nd the precursors fill these interstices substantially completely before completion of the reaction. The pad may include a thin layer of free fibers at its polishing surface. A segment of at least a portion of the free fibers ar e embedded in the adjacent body of the polymer and fibers. The fibers may be separate, or in the form of a woven or non-woven web.