Patents by Inventor Christopher K. Y. Chun

Christopher K. Y. Chun 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).

  • Molded waveguide and method for making same
    Patent number: 5265184
    Abstract: A method for manufacturing a molded waveguide (50) is provided. A first cladding layer (20) is provided. Channels (21) are formed in the first cladding layer (20). A second cladding layer (40) is subsequently provided. The channels (21) in the first cladding layer (20) are then filled with an optically transparent polymer. The second cladding layer (40) is subsequently affixed over the channels (21) of the first cladding layer (20), thereby enclosing the channels (21).
    Type: Grant
    Filed: May 28, 1992
    Date of Patent: November 23, 1993
    Assignee: Motorola, Inc.
    Inventors: Michael S. Lebby, Shun-Meen Kuo, Davis H. Hartman, Christopher K. Y. Chun
  • Interface coupling electronic circuitry
    Patent number: 5230030
    Abstract: An optical interface including a keyway formed in a printed circuit board and a mating portion attached to the ends of a plurality of optical fibers. Openings in a surface of the keyway communicate light from the fibers to semiconductor chips on the board by means of optical waveguides formed in the dielectric layers of the printed circuit board. The keyway accurately aligns the mating portion which aligns the ends of the fibers with the openings.
    Type: Grant
    Filed: April 24, 1992
    Date of Patent: July 20, 1993
    Assignee: Motorola, Inc.
    Inventors: Davis H. Hartman, Michael S. Lebby, Melissa Denvir, Christopher K. Y. Chun
  • Electrical to optical links using metalization
    Patent number: 5228101
    Abstract: An optical fiber mounted on a substrate and a semiconductor component mounted on a second substrate. The substrates abutting so that the component and fiber are optically aligned and the assembly is held in place by a first layer of adhesive which is then covered with an electroformed layer of metal to form a robust unit.
    Type: Grant
    Filed: March 2, 1992
    Date of Patent: July 13, 1993
    Assignee: Motorola, Inc.
    Inventors: Michael S. Lebby, Davis H. Hartman, Christopher K. Y. Chun, Melissa Denvir
  • Laminated polymer optical waveguide interface and method of making same
    Patent number: 5125054
    Abstract: An interface between a laminated polymer optical waveguide (15) and an electronic device (39). The interface does not degrade the desirable properties of the optical waveguide (15), is simple, is low cost, and is compatible with integrated circuit technology as well as optical and electrical connectors (41,42,43,46). The interface includes at least one vertical cavity surface emitting laser or photosensitive diode (11,37) mounted above the surface of the optical waveguide (15). A mirror (21) positioned at an angle with respect to the optical waveguide (15) serves to reflect light between either the vertical cavity surface emitting laser or photosensitive diode (11,37) and the optical waveguide (15). At least one microstrip line (16) couples electrical signals between the vertical cavity surface emitting laser (11,37) and the electronic device (39).
    Type: Grant
    Filed: July 25, 1991
    Date of Patent: June 23, 1992
    Assignee: Motorola, Inc.
    Inventors: Donald E. Ackley, Christopher K. Y. Chun, Michael S. Lebby