Patents by Inventor Shu-Wong S. Lee

Shu-Wong S. Lee 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).

  • Patent number: 5957764
    Abstract: A wafer polishing apparatus includes a module frame; a continuous belt rotatable with respect to the frame, the belt having at least one vertically-oriented belt transverse portion including a polishing pad assembly; and at least one pivotable wafer-holding head drive within the frame and having a distal end portion movable to a vertical first position parallel and juxtaposed to the belt transverse portion. The head drive includes a wafer carrier for holding a wafer on the distal end portion of the head drive, while a drive moves the distal end portion and a held wafer into a vertical polishing position abutting the belt transverse portion and pressure is applied to the held-wafer against the polishing pad assembly while the wafer-holding distal end portion is rotated and swept side-by-side. After polishing the drive is reversed and the head drive is pivoted away from the belt transverse portion to a horizontal or other orientation and the then polished wafer removed.
    Type: Grant
    Filed: November 5, 1997
    Date of Patent: September 28, 1999
    Assignee: Aplex, Inc.
    Inventors: H. Alexander Anderson, Linh X. Can, Tsungnan Cheng, Garry K. Kwong, Albert Hu, David Chen, Shu-Wong S. Lee