Patents by Inventor Kun Yoo Ko

Kun Yoo Ko 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).

  • Publication number: 20090085052
    Abstract: The present invention relates to a GaN type LED device and a method of manufacturing the same. More particularly, there are provided a GaN type LED device including an LED chip; and a submount eutectic-bonded with the LED chip through an adhesive layer, wherein the adhesive layer is configured by soldering a plurality of metallic layers in which a first metallic layer and a second metallic layer are sequentially stacked, and the second metallic layer is formed in a paste form. Further, the present invention provides a method of manufacturing the GaN type LED device.
    Type: Application
    Filed: September 10, 2008
    Publication date: April 2, 2009
    Inventors: Kun Yoo Ko, Young June Jeong, Seung Hwan Choi, Seong Ah Joo, Jung Kyu Park
  • Publication number: 20090050923
    Abstract: Provided is an LED package including a printed circuit board (PCB); a conductive structure that is formed on the PCB and is composed of any one selected from a silicon structure and an aluminum structure; and an LED chip that is mounted on the PCB and is electrically connected to the PCB through the conductive structure.
    Type: Application
    Filed: August 15, 2008
    Publication date: February 26, 2009
    Inventors: Seong Ah Joo, Jung Kyu Park, Kun Yoo Ko, Young June Jeong, Seung Hwan Choi
  • Publication number: 20080210972
    Abstract: Provided is a nitride-based semiconductor LED including a substrate; a first conductive-type nitride semiconductor layer formed on the substrate; an active layer formed on a predetermined region of the first conductive-type nitride semiconductor layer; a second conductive-type nitride semiconductor layer formed on the active layer; a transparent electrode formed on the second conductive-type nitride semiconductor layer; a second conductive-type electrode pad formed on the transparent electrode; a plurality of second conductive-type electrodes extending from the second conductive-type electrode pad in one direction so as to be formed in a line; a first conductive-type electrode pad formed on the first conductive-type nitride semiconductor layer, where the active layer is not formed, so as to be positioned on the same side as the second conductive-type electrode pad; and a plurality of first conductive-type electrodes extending from the first conductive-type electrode pad in one direction so as to be formed in
    Type: Application
    Filed: December 21, 2007
    Publication date: September 4, 2008
    Inventors: Kun Yoo Ko, Je Won Kim, Dong Woo Kim, Hyng Jin Park, Seok Min Hwang, Seung Wan Chae
  • Patent number: 7297988
    Abstract: The present invention relates to a flip chip type nitride semiconductor light emitting device having p-type and n-type nitride semiconductor layers, and an active layer in between. The invention also has an ohmic contact layer formed on the p-type nitride semiconductor layer, a light-transmitting conductive oxide layer formed on the ohmic contact layer, and a highly reflective metal layer formed on the light-transmitting conductive oxide layer.
    Type: Grant
    Filed: December 28, 2005
    Date of Patent: November 20, 2007
    Assignee: Samsung Electro-Mechanics Co., Ltd.
    Inventors: Seung Wan Chae, Suk Kil Yoon, Kun Yoo Ko, Hyun Wook Shim, Bong Il Yi
  • Patent number: 7160744
    Abstract: The present invention relates to a fabrication method of LEDs incorporating a step of surface-treating a substrate by a laser and an LED fabricated by such a fabrication method. The present invention can use a laser in order to implement finer surface treatment to an LED substrate over the prior art. As a result, the invention can improve the light extraction efficiency of an LED while protecting the substrate from chronic problems of the prior art such as stress or defects induced from chemical etching and/or physical polishing.
    Type: Grant
    Filed: September 30, 2004
    Date of Patent: January 9, 2007
    Assignee: Samsung Electro-Mechanics Co., Ltd.
    Inventors: Young Ho Park, Hun Joo Hahm, Kun Yoo Ko, Hyo Kyong Cho
  • Patent number: 7087985
    Abstract: In a nitride semiconductor LED having a light emitting structure, an n-doped semiconductor layer has a first region and a second region surrounding the first region, an active layer is formed on the second region of the n-doped semiconductor layer, and a p-doped nitride semiconductor layer is formed on the active layer. A p-electrode is formed on the p-doped semiconductor layer. An n-electrode is formed on the first region of the n-doped nitride semiconductor layer.
    Type: Grant
    Filed: May 26, 2004
    Date of Patent: August 8, 2006
    Assignee: Samsung Electro-Mechanics Co., Ltd.
    Inventors: Young Ho Park, Hyo Kyoung Cho, Seung Jin Yoo, Kun Yoo Ko