Patents by Inventor Hyung Kook Chung

Hyung Kook Chung 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: 10090228
    Abstract: A semiconductor package or device includes a leadframe defining a plurality of leads which are arranged and partially etched in a manner facilitating a substantial reduction in burr formation resulting from a saw singulation process used to complete the fabrication of the semiconductor device. In one embodiment, the semiconductor device includes a die pad defining multiple peripheral edge segments. In addition, the semiconductor device includes a plurality of leads that are provided in a prescribed arrangement. At least one semiconductor die is connected to the top surface of the die pad and further electrically connected to at least some of the leads. At least portions of the die pad, the leads, the lands, and the semiconductor die are encapsulated by the package body, with at least portions of the bottom surfaces of the die pad and the leads being exposed in a common exterior surface of the package body.
    Type: Grant
    Filed: April 4, 2017
    Date of Patent: October 2, 2018
    Assignee: Amkor Technology, Inc.
    Inventors: Hong Bae Kim, Hyun Jun Kim, Hyung Kook Chung
  • Patent number: 9704725
    Abstract: A semiconductor package or device including a uniquely configured leadframe defining a plurality of leads which are arranged and partially etched in a manner facilitating a substantial reduction in burr formation resulting from a saw singulation process used to complete the fabrication of the semiconductor device. The semiconductor device includes a die pad defining multiple peripheral edge segments. In addition, the semiconductor device includes a plurality of leads which are provided in a prescribed arrangement. Connected to the top surface of the die pad is at least one semiconductor die which is electrically connected to at least some of the leads. At least portions of the die pad, the leads, the lands, and the semiconductor die are encapsulated by the package body, with at least portions of the bottom surfaces of the die pad and the leads being exposed in a common exterior surface of the package body.
    Type: Grant
    Filed: March 6, 2012
    Date of Patent: July 11, 2017
    Assignee: Amkor Technology, Inc.
    Inventors: Hyun Jun Kim, Hyung Kook Chung, Hong Bae Kim
  • Patent number: 9673122
    Abstract: In one embodiment, a micro lead frame structure includes one or more stiffness reinforcing structures formed on leads and/or connecting structures. The stiffness reinforcing structures can be formed by leaving predetermined portions of the micro lead frame at full thickness including, for example, portions of an inner lead, portions of an outer lead, and portions of a connecting bar, combinations thereof, and other structures. The stiffness reinforcing structures are configured to reduce deformation defects and electrical short defects caused by assembly processes.
    Type: Grant
    Filed: August 29, 2015
    Date of Patent: June 6, 2017
    Assignee: Amkor Technology, Inc.
    Inventors: Hyeong Il Jeon, Hyung Kook Chung, Hong Bae Kim, Byong Jin Kim
  • Publication number: 20150371933
    Abstract: In one embodiment, a micro lead frame structure includes one or more stiffness reinforcing structures formed on leads and/or connecting structures. The stiffness reinforcing structures can be formed by leaving predetermined portions of the micro lead frame at full thickness including, for example, portions of an inner lead, portions of an outer lead, and portions of a connecting bar, combinations thereof, and other structures. The stiffness reinforcing structures are configured to reduce deformation defects and electrical short defects caused by assembly processes.
    Type: Application
    Filed: August 29, 2015
    Publication date: December 24, 2015
    Applicant: AMKOR TECHNOLOGY, INC.
    Inventors: Hyeong Il Jeon, Hyung Kook Chung, Hong Bae Kim, Byong Jin Kim
  • Patent number: 9184118
    Abstract: In one embodiment, a micro lead frame structure includes one or more stiffness reinforcing structures formed on leads and/or connecting structures. The stiffness reinforcing structures can be formed by leaving predetermined portions of the micro lead frame at full thickness including, for example, portions of an inner lead, portions of an outer lead, and portions of a connecting bar, combinations thereof, and other structures. The stiffness reinforcing structures are configured to reduce deformation defects and electrical short defects caused by assembly processes.
    Type: Grant
    Filed: May 2, 2014
    Date of Patent: November 10, 2015
    Assignee: Amkor Technology Inc.
    Inventors: Hyeong Il Jeon, Hyung Kook Chung, Hong Bae Kim, Byong Jin Kim
  • Publication number: 20140327122
    Abstract: In one embodiment, a micro lead frame structure includes one or more stiffness reinforcing structures formed on leads and/or connecting structures. The stiffness reinforcing structures can be formed by leaving predetermined portions of the micro lead frame at full thickness including, for example, portions of an inner lead, portions of an outer lead, and portions of a connecting bar, combinations thereof, and other structures. The stiffness reinforcing structures are configured to reduce deformation defects and electrical short defects caused by assembly processes.
    Type: Application
    Filed: May 2, 2014
    Publication date: November 6, 2014
    Applicant: Amkor Technology, Inc.
    Inventors: Hyeong Il Jeon, Hyung Kook Chung, Hong Bae Kim, Byong Jin Kim