Patents by Inventor Shang-Cheng Liu

Shang-Cheng Liu 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: 8786074
    Abstract: A packaging device for matrix-arrayed semiconductor light-emitting elements of high power and high directivity comprises a metal base, an array chip and a plurality of metal wires. The metal base is of highly heat conductive copper or aluminum, and a first electrode area and at least one second electrode area which are electrically isolated are disposed on the metal base. The array chip is disposed on the first electrode area, on which multiple matrix-arranged semiconductor light-emitting elements and at least one wire bond pad adjacent to the light-emitting elements are disposed. The light-emitting element is a VCSEL element, an HCSEL element or an RCLED element. The metal wires are connected between the wire bond pad and the second electrode area to transmit power signals. Between the bottom surface and the first electrode area is disposed a conductive adhesive to bond and facilitate electrical connection between the two.
    Type: Grant
    Filed: October 23, 2012
    Date of Patent: July 22, 2014
    Assignee: TrueLight Corporation
    Inventors: Cheng Ju Wu, Hung-Che Chen, I Han Wu, Shang-Cheng Liu, Jin Shan Pan
  • Patent number: 8786073
    Abstract: A packaging device for matrix-arrayed semiconductor light-emitting elements of high power and high directivity comprises a metal base, an array chip and a plurality of metal wires. The metal base is of highly heat conductive copper or aluminum, and a first electrode area and at least one second electrode area which are electrically isolated are disposed on the metal base. The array chip is disposed on the first electrode area, on which multiple matrix-arranged semiconductor light-emitting elements and at least one wire bond pad adjacent to the light-emitting elements are disposed. The light-emitting element is a VCSEL element, an HCSEL element or an RCLED element. The metal wires are connected between the wire bond pad and the second electrode area to transmit power signals. Between the bottom surface and the first electrode area is disposed a conductive adhesive to bond and facilitate electrical connection between the two.
    Type: Grant
    Filed: October 23, 2012
    Date of Patent: July 22, 2014
    Assignee: TrueLight Corporation
    Inventors: Cheng Ju Wu, Hung-Che Chen, I Han Wu, Shang-Cheng Liu, Jin Shan Pan
  • Patent number: 8324722
    Abstract: A packaging device for matrix-arrayed semiconductor light-emitting elements of high power and high directivity comprises a metal base, an array chip and a plurality of metal wires. The metal base is of highly heat conductive copper or aluminum, and a first electrode area and at least one second electrode area which are electrically isolated are disposed on the metal base. The array chip is disposed on the first electrode area, on which multiple matrix-arranged semiconductor light-emitting elements and at least one wire bond pad adjacent to the light-emitting elements are disposed. The light-emitting element is a VCSEL element, an HCSEL element or an RCLED element. The metal wires are connected between the wire bond pad and the second electrode area to transmit power signals. Between the bottom surface and the first electrode area is disposed a conductive adhesive to bond and facilitate electrical connection between the two.
    Type: Grant
    Filed: January 14, 2010
    Date of Patent: December 4, 2012
    Assignee: Truelight Corporation
    Inventors: Cheng Ju Wu, Hung-Che Chen, I Han Wu, Shang-Cheng Liu, Jin Shan Pan
  • Patent number: 8121167
    Abstract: A dual wavelength laser device including a cap, a header, a first laser chip and a second laser chip. The cap includes a cap body and a lens embedded on the cap body. The header forms an accommodating space with the cap. The first laser chip is arranged in the accommodating space and emitting a first laser beam toward the lens. The second laser chip is arranged in the accommodating space and emitting a second laser beam toward the lens.
    Type: Grant
    Filed: May 6, 2009
    Date of Patent: February 21, 2012
    Assignee: Truelight Corporation
    Inventors: Jin-Shan Pan, Shang-Cheng Liu, Cheng-Ju Wu, Chang-Cherng Wu
  • Publication number: 20110121323
    Abstract: A packaging device for matrix-arrayed semiconductor light-emitting elements of high power and high directivity comprises a metal base, an array chip and a plurality of metal wires. The metal base is of highly heat conductive copper or aluminum, and a first electrode area and at least one second electrode area which are electrically isolated are disposed on the metal base. The array chip is disposed on the first electrode area, on which multiple matrix-arranged semiconductor light-emitting elements and at least one wire bond pad adjacent to the light-emitting elements are disposed. The light-emitting element is a VCSEL element, an HCSEL element or an RCLED element. The metal wires are connected between the wire bond pad and the second electrode area to transmit power signals. Between the bottom surface and the first electrode area is disposed a conductive adhesive to bond and facilitate electrical connection between the two.
    Type: Application
    Filed: January 14, 2010
    Publication date: May 26, 2011
    Inventors: Cheng Ju Wu, Hung-Che Chen, I Han Wu, Shang-Cheng Liu, Jin Shan Pan
  • Publication number: 20090279894
    Abstract: A triple wavelength bidirectional optical communication system includes an optical fiber, a transmitter optical subassembly and a receiver optical subassembly. The transmitter optical subassembly includes a first filter, a dual wavelength laser device and a first detector device. The dual wavelength laser device emits a first and a second laser beam to the optical fiber. The first detector device receives a third laser beam emitted from the optical fiber and propagated via the first filter. The receiver optical subassembly includes a second filter, a transceiver device and a second detector device. The transceiver device emits the third laser beam propagated via the second filter and reached to the optical fiber and also receives the first laser beam emitted from the optical fiber and propagated via the second filter. The second detector device receives the second laser beam emitted from the second facet and propagated via the second filter.
    Type: Application
    Filed: April 30, 2009
    Publication date: November 12, 2009
    Inventors: Jin-Shan Pan, Shang-Cheng Liu, Cheng-Ju Wu
  • Publication number: 20090279898
    Abstract: A bi-directional optical device includes: a TO cap; a TO header defining a receiving space together with the TO cap; a laser chip provided on the TO header and in the receiving space; and a light-receiving chip provided on the TO header and in the receiving space. The TO cap has a cap body and a lens embeddedly mounted on the cap body. The laser chip emits a first laser beam toward the lens. The light-receiving chip faces the lens and receives a second laser beam transmitted through the lens. The laser chip and the light-receiving chip are packaged together within the receiving space defined by the TO cap and the TO header, so as to effectuate a bi-directional optical device for emitting and receiving light of different wavelengths.
    Type: Application
    Filed: May 7, 2009
    Publication date: November 12, 2009
    Inventors: Jin-Shan Pan, Shang-Cheng Liu, Cheng-Ju Wu
  • Publication number: 20090279578
    Abstract: A dual wavelength laser device including a cap, a header, a first laser chip and a second laser chip. The cap includes a cap body and a lens embedded on the cap body. The header forms an accommodating space with the cap. The first laser chip is arranged in the accommodating space and emitting a first laser beam toward the lens. The second laser chip is arranged in the accommodating space and emitting a second laser beam toward the lens.
    Type: Application
    Filed: May 6, 2009
    Publication date: November 12, 2009
    Inventors: Jin-Shan PAN, Shang-Cheng LIU, Cheng-Ju WU, Chang-Cherng WU