Patents by Inventor Wei-Hung Kang

Wei-Hung Kang 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: 7994531
    Abstract: A white-light LED chip and a fabrication method thereof are provided. The white-light LED chip comprises a blue-light LED chip and a phosphor layer directly disposed on a top surface of the blue-light LED chip. The method comprises providing a plurality of blue-light LED chips attached to a substrate, wherein at least one contact pad is formed on the top surface of each blue-light LED chip. A protective layer is formed on the contact pad. A phosphor layer is formed on the top surface of the blue-light LED chip by a molding process, exposing the contact pad. Finally, the protective layer and the substrate are removed from the blue-light LED chip to form a white-light LED chip.
    Type: Grant
    Filed: April 2, 2009
    Date of Patent: August 9, 2011
    Assignee: VisEra Technologies Company Limited
    Inventors: Chun-Chi Lin, Tzu-Han Lin, Wei-Hung Kang
  • Patent number: 7928655
    Abstract: A light-emitting diode (LED) device is disclosed. The LED device includes a semiconductor substrate with a planar top surface, a light-emitting diode (LED) chip disposed over the top surface of the semiconductor substrate, at least two isolated outer wiring layers formed through the semiconductor substrate and electrically connected to the light-emitting diode chip, serving as input terminals, a transparent encapsulating layer with a substantially planar top surface formed over the semiconductor substrate, capping the LED chip and the at least two isolated outer wiring layers, and a lens module adhered to the substantially planar top surface of the transparent encapsulating layer to cap the light-emitting diode chip. In one embodiment, the lens module includes a fluorescent layer and a lens covering or covered by the fluorescent layer.
    Type: Grant
    Filed: November 10, 2008
    Date of Patent: April 19, 2011
    Assignee: VisEra Technologies Company Limited
    Inventors: Tzu-Han Lin, Tzy-Ying Lin, Jui-Ping Weng, Wei-Hung Kang
  • Patent number: 7920328
    Abstract: A lens module and a method for fabricating the same are disclosed. The module comprises a substrate and a lens structure. The substrate comprises a through-hole therein. The lens structure is embedded in the through-hole.
    Type: Grant
    Filed: February 28, 2008
    Date of Patent: April 5, 2011
    Assignee: VisEra Technologies Company Limited
    Inventors: Wei-Hung Kang, Chia-Yang Chang, Jung-Jung Kuo, Yu-Hui Lee
  • Publication number: 20100252845
    Abstract: A white-light LED chip and a fabrication method thereof are provided. The white-light LED chip comprises a blue-light LED chip and a phosphor layer directly disposed on a top surface of the blue-light LED chip. The method comprises providing a plurality of blue-light LED chips attached to a substrate, wherein at least one contact pad is formed on the top surface of each blue-light LED chip. A protective layer is formed on the contact pad. A phosphor layer is formed on the top surface of the blue-light LED chip by a molding process, exposing the contact pad. Finally, the protective layer and the substrate are removed from the blue-light LED chip to form a white-light LED chip.
    Type: Application
    Filed: April 2, 2009
    Publication date: October 7, 2010
    Inventors: Chun-Chi Lin, Tzu-Han Lin, Wei-Hung Kang
  • Publication number: 20100117530
    Abstract: A light-emitting diode (LED) device is disclosed. The LED device includes a semiconductor substrate with a planar top surface, a light-emitting diode (LED) chip disposed over the top surface of the semiconductor substrate, at least two isolated outer wiring layers formed through the semiconductor substrate and electrically connected to the light-emitting diode chip, serving as input terminals, a transparent encapsulating layer with a substantially planar top surface formed over the semiconductor substrate, capping the LED chip and the at least two isolated outer wiring layers, and a lens module adhered to the substantially planar top surface of the transparent encapsulating layer to cap the light-emitting diode chip. In one embodiment, the lens module includes a fluorescent layer and a lens covering or covered by the fluorescent layer.
    Type: Application
    Filed: November 10, 2008
    Publication date: May 13, 2010
    Inventors: Tzu-Han LIN, Tzy-Ying LIN, Jui-Ping WENG, Wei-Hung Kang
  • Publication number: 20090219632
    Abstract: A lens module and a method for fabricating the same are disclosed. The module comprises a substrate and a lens structure. The substrate comprises a through-hole therein. The lens structure is embedded in the through-hole.
    Type: Application
    Filed: February 28, 2008
    Publication date: September 3, 2009
    Inventors: Wei-Hung KANG, Chia-Yang Chang, Jung-Jung Kuo, Yu-Hui Lee
  • Publication number: 20090218582
    Abstract: A method of fabricating an optical device is disclosed. The method comprises the step of forming an optical stack of laminated lenses and a phosphor film therebetween. The method further comprises the step of attaching the optical stack to an LED die. In addition, an optical device fabricated by the above method is also disclosed.
    Type: Application
    Filed: February 28, 2008
    Publication date: September 3, 2009
    Inventors: Wei-Hung KANG, Chia-Yang Chang, Jung-Jung Kuo