Patents by Inventor Yong Hui Joo

Yong Hui Joo 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: 20150287639
    Abstract: A semiconductor chip may include: a semiconductor body having scribe lines formed in both end surfaces thereof; and a metal layer formed on a lower surface of the semiconductor body and the scribe lines. An upper surface of the semiconductor body may have a width greater than that of the lower surface thereof. The semiconductor chip may be stably mounted on a printed circuit board, such that quality and a yield may be improved in a wire-bonding process between the semiconductor chip and the printed circuit board.
    Type: Application
    Filed: September 25, 2014
    Publication date: October 8, 2015
    Applicant: Samsung Electro-Mechanics Co., Ltd.
    Inventors: Yong Hui JOO, Jung Mi Oh
  • Publication number: 20140027049
    Abstract: There is provided a chip ejector including a fixing unit; and at least one or more conveying units disposed outwardly of the fixing unit, wherein the conveying units fall with a tape having one surface attached to upper portions of the conveying units, and separate a chip attached to the other surface of the tape therefrom.
    Type: Application
    Filed: September 14, 2012
    Publication date: January 30, 2014
    Applicant: SAMSUNG ELECTRO-MECHANICS CO., LTD.
    Inventors: Yong Hui JOO, Sung Keun PARK, Kyung Sun JWA, Jung Mi OH, Bum Sik JANG
  • Patent number: 8630097
    Abstract: Disclosed herein are a power module using sintering die attach and a manufacturing method of the same. The power module includes: a substrate having an insulating layer formed on a surface of a metal plate; a circuit layer formed on the substrate and including a wiring pattern and an electrode pattern; a device mounted on the wiring pattern; a sintering die attach layer applying a metal paste between the wiring pattern and the device and sintering the metal paste to bond the wiring pattern to the device; and a lead frame electrically connecting the device to the electrode pattern, whereby making it possible to simplify and facilitate the process, increase electrical efficiency and improve radiation characteristics, and manufacture firm and reliable power module.
    Type: Grant
    Filed: January 14, 2011
    Date of Patent: January 14, 2014
    Assignee: Samsung Electro-Mechanics Co., Ltd.
    Inventors: Tae Hyun Kim, Yong Hui Joo, Seog Moon Choi
  • Publication number: 20120122278
    Abstract: Disclosed herein is a method of method of manufacturing a semiconductor package board, including: providing a substrate including a connection part formed on one side thereof, the connection part being provided thereon with a solder layer; disposing a conductive heat generator equipped with current wiring on the solder layer; applying current to the current wiring and thus heating the solder layer to attach a semiconductor chip to the connection part; and removing the current wiring from the conductive heat generator. The method is advantageous in that the semiconductor chip is attached to the substrate by applying current to the current wiring of the conductive heat generator to locally heat only the solder layer, thus reducing thermal stress and preventing the deformation of the substrate.
    Type: Application
    Filed: January 14, 2011
    Publication date: May 17, 2012
    Applicant: SAMSUNG ELECTRO-MECHANICS CO., LTD.
    Inventors: Kwan Ho LEE, Yong Hui Joo, Tae Hyun KIM, Seog Moon CHOI
  • Publication number: 20120106109
    Abstract: Disclosed herein are a power module using sintering die attach and a manufacturing method of the same. The power module includes: a substrate having an insulating layer formed on a surface of a metal plate; a circuit layer formed on the substrate and including a wiring pattern and an electrode pattern; a device mounted on the wiring pattern; a sintering die attach layer applying a metal paste between the wiring pattern and the device and sintering the metal paste to bond the wiring pattern to the device; and a lead frame electrically connecting the device to the electrode pattern, whereby making it possible to to simplify and facilitate the process, increase electrical efficiency and improve radiation characteristics, and manufacture firm and reliable power module.
    Type: Application
    Filed: January 14, 2011
    Publication date: May 3, 2012
    Applicant: SAMSUNG ELECTRO-MECHANICS CO., LTD.
    Inventors: Tae Hyun KIM, Yong Hui Joo, Seog Moon CHOI