Patents by Inventor Oscar Chi Hsu

Oscar Chi Hsu has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Fiber embedded polishing pad
    Publication number: 20050079805
    Abstract: A polishing pad having a body comprising fibers embedded in a matrix polymer formed by a reaction of polymer precursors. The loose fibers define and the precursors were mixed first with curatives, then mold into a pad form. 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 are embedded in the adjacent body of the polymer and fibers.
    Type: Application
    Filed: April 5, 2004
    Publication date: April 14, 2005
    Applicants: International Business Machines Corporation
    Inventors: Shyng-Tsong Chen, Kenneth Davis, Oscar Chi Hsu, Kenneth Rodbell, Jean Vangsness