Patents by Inventor Suk Gu Ko

Suk Gu 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).

  • Patent number: 9362210
    Abstract: Metal leadframes, semiconductor packages made using the leadframes, and methods of making the leadframes and packages are disclosed. In one embodiment, the leadframe includes a rectangular frame. A chip pad and a plurality of leads are within the frame. The lower side of the chip pad and the leads includes one or more vertically recessed horizontal surfaces. The upper side of the chip pad may include a groove around a chip mounting region. In a package, the chip pad supports a semiconductor chip electrically connected to the leads. The lower side of the chip pad and leads are exposed at an exterior surface of the package body. Encapsulant material underfills the recessed lower surfaces of the chip pad and leads, thereby locking them to the encapsulant material. A wire may be reliably bonded to the chip pad within the groove formed in the upper side thereof.
    Type: Grant
    Filed: February 10, 2013
    Date of Patent: June 7, 2016
    Assignee: Amkor Technology, Inc.
    Inventors: Byung Hoon Ahn, Jae Hun Ku, Young Suk Chung, Suk Gu Ko, Sung Sik Jang, Young Nam Choi, Won Chul Do
  • Patent number: 8410585
    Abstract: Metal leadframes, semiconductor packages made using the leadframes, and methods of making the leadframes and packages are disclosed. In one embodiment, the leadframe includes a rectangular frame. A chip pad and a plurality of leads are within the frame. The lower side of the chip pad and the leads includes one or more vertically recessed horizontal surfaces. The upper side of the chip pad may include a groove around a chip mounting region. In a package, the chip pad supports a semiconductor chip electrically connected to the leads. The lower side of the chip pad and leads are exposed at an exterior surface of the package body. Encapsulant material underfills the recessed lower surfaces of the chip pad and leads, thereby locking them to the encapsulant material. A wire may be reliably bonded to the chip pad within the groove formed in the upper side thereof.
    Type: Grant
    Filed: March 10, 2006
    Date of Patent: April 2, 2013
    Assignee: Amkor Technology, Inc.
    Inventors: Byung Hoon Ahn, Jae Hun Ku, Young Suk Chung, Suk Gu Ko, Sung Sik Jang, Young Nam Choi, Won Chul Do
  • Patent number: 7633763
    Abstract: A memory card comprising a substrate having opposed top and bottom surfaces and a plurality of terminals disposed on the bottom surface thereof. Mounted to the top surface of the substrate is at least one component which is itself electrically connected to the terminals of the substrate. Formed on the bottom surface of the substrate is a first encapsulation part. Formed on the top surface of the substrate is a second encapsulation part which encapsulates the component mounted thereto.
    Type: Grant
    Filed: January 28, 2004
    Date of Patent: December 15, 2009
    Assignee: Amkor Technology, Inc.
    Inventors: Chul Woo Park, Suk Gu Ko, Sang Jae Jang, Sung Su Park, Choon Heung Lee
  • Patent number: 7220915
    Abstract: A memory card comprising a circuit board having opposed upper and lower circuit board surfaces, at least one test pad disposed on the upper circuit board surface, and a conductive pattern disposed on the lower circuit board surface and electrically connected to the test pad. Electrically connected to the conductive pattern of the circuit board is a leadframe which includes a plurality of leads, each of the leads having a signal pad portion. At least one electronic circuit element is attached to the lower circuit board surface and electrically connected to the leadframe and to the conductive pattern of the circuit board. A body at least partially encapsulates the circuit board, the leadframe and the electronic circuit element such that the test pad of the circuit board is exposed in an upper body surface of the body, and the signal pad portions of the leads of the leadframe are exposed in a lower body surface of the body.
    Type: Grant
    Filed: February 17, 2005
    Date of Patent: May 22, 2007
    Assignee: Amkor Technology, Inc.
    Inventors: Chul Woo Park, Sang Jae Jang, Sung Su Park, Choon Heung Lee, Suk Gu Ko
  • Patent number: 7201327
    Abstract: A memory card comprising a die paddle having opposed, generally planar first and second die paddle surfaces and multiple peripheral edge segments. Disposed along and in spaced relation to one of the peripheral edge segments of the die paddle is a plurality of contacts, each of which has opposed, generally planar first and second contact surfaces. An inner body partially encapsulates the die paddle and the contacts, the first contact surface of each of the contacts and the first die paddle surface of the die paddle being exposed in and substantially flush with a generally planar first inner body surface of the inner body. The inner body further defines a generally planar second inner body surface which is disposed in opposed relation to the first inner body surface, the second contact surface of each of the contacts being exposed in the second inner body surface. At least one electronic circuit element is attached to the first die paddle surface and electrically connected to at least one of the contacts.
    Type: Grant
    Filed: October 18, 2004
    Date of Patent: April 10, 2007
    Assignee: Amkor Technology, Inc.
    Inventors: Chul Woo Park, Sang Jae Jang, Sung Su Park, Choon Heung Lee, Suk Gu Ko
  • Patent number: 7042068
    Abstract: Metal leadframes, semiconductor packages made using the leadframes, and methods of making the leadframes and packages are disclosed. In one embodiment, the leadframe includes a rectangular frame. A chip pad and a plurality of leads are within the frame. The lower side of the chip pad and the leads includes one or more vertically recessed horizontal surfaces. The upper side of the chip pad may include a groove around a chip mounting region. In a package, the chip pad supports a semiconductor chip electrically connected to the leads. The lower side of the chip pad and leads are exposed at an exterior surface of the package body. Encapsulant material underfills the recessed lower surfaces of the chip pad and leads, thereby locking them to the encapsulant material. A wire may be reliably bonded to the chip pad within the groove formed in the upper side thereof.
    Type: Grant
    Filed: April 27, 2001
    Date of Patent: May 9, 2006
    Assignee: Amkor Technology, Inc.
    Inventors: Byung Hoon Ahn, Jae Hun Ku, Young Suk Chung, Suk Gu Ko, Sung Sik Jang, Young Nam Choi, Won Chul Do