Patents by Inventor Sang-Kyu Yoo

Sang-Kyu Yoo 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: 10295564
    Abstract: An apparatus for clamping a probe card may include a body portion, an inner clamping portion and a plurality of outer clamping portions. The body portion may be arranged between a printed circuit board (PCB) of the probe card and a test head. The inner clamping portion may be integrally formed with an upper surface of the body portion. The inner clamping portion may be configured to affix a central portion of the PCB to the test head. The outer clamping portions may be integrally formed with side surfaces of the body portion. The outer clamping portions may be configured to affix a portion surrounding the central portion of the PCB to the test head. Thus, a contact area between the clamping apparatus and the PCB may be increased.
    Type: Grant
    Filed: January 17, 2017
    Date of Patent: May 21, 2019
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Sung-Yong Park, Sang-Boo Kang, Jae-Geun Kim, Sung-Hyup Kim, Jeong-Min Na, Jae-Hyoung Park, Sang-Kyu Yoo, Jae-Hoon Joo
  • Publication number: 20180017595
    Abstract: An apparatus for clamping a probe card may include a body portion, an inner clamping portion and a plurality of outer clamping portions. The body portion may be arranged between a printed circuit board (PCB) of the probe card and a test head. The inner clamping portion may be integrally formed with an upper surface of the body portion. The inner clamping portion may be configured to affix a central portion of the PCB to the test head. The outer clamping portions may be integrally formed with side surfaces of the body portion. The outer clamping portions may be configured to affix a portion surrounding the central portion of the PCB to the test head. Thus, a contact area between the clamping apparatus and the PCB may be increased.
    Type: Application
    Filed: January 17, 2017
    Publication date: January 18, 2018
    Applicant: Samsung Electronics Co., Ltd.
    Inventors: Sung-Yong PARK, Sang-Boo KANG, Jae-Geun KIM, Sung-Hyup KIM, Jeong-Min NA, Jae-Hyoung PARK, Sang-Kyu YOO, Jae-Hoon JOO
  • Patent number: 7701235
    Abstract: Substrate test probing equipment having a force-receiving pattern for a probe card and a forcing part for a test head, and methods of using the same, in which with the force-receiving pattern for the probe card and the forcing part for the test head, thermal expansion and contraction of the probe card can be suppressed when the semiconductor substrate is being tested at high and low temperatures. To this end, to substrate test probing equipment having a substrate mover, a probe card, and a test head is prepared, in which the test head has a forcing part and the probe card has a force-receiving plate. A semiconductor substrate is placed on the substrate mover to be electrically connected with the probe card. The semiconductor substrate is electrically tested by the probe card and the test head. When the semiconductor substrate is being tested, the forcing part of the test head is brought into contact with the force-receiving pattern of the probe card.
    Type: Grant
    Filed: April 7, 2008
    Date of Patent: April 20, 2010
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Chang-Hyun Cho, Joon-Yeon Kim, Sang-Gu Kang, Sung-Mo Kang, Sang-Kyu Yoo
  • Patent number: 7605596
    Abstract: A probe card, an apparatus and a method of inspecting an object. In the example method, a first inspection current may be divided into a plurality of first divided inspection currents. Each of the first divided inspection currents may be supplied to a different one of a plurality of first chips. A second inspection current may be selectively applied to a second chip other than the first plurality of chips. In an example, the second inspection current may be substantially equal to at least one of the plurality of first divided inspection currents. In a further example, the example probe card and/or the apparatus may perform the example method.
    Type: Grant
    Filed: August 28, 2006
    Date of Patent: October 20, 2009
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Yang-Gi Kim, Sang-Kyu Yoo, Byung-Soo Moon, Mi-Yeon Cho
  • Publication number: 20080252327
    Abstract: Substrate test probing equipment having a force-receiving pattern for a probe card and a forcing part for a test head, and methods of using the same, in which with the force-receiving pattern for the probe card and the forcing part for the test head, thermal expansion and contraction of the probe card can be suppressed when the semiconductor substrate is being tested at high and low temperatures. To this end, to substrate test probing equipment having a substrate mover, a probe card, and a test head is prepared, in which the test head has a forcing part and the probe card has a force-receiving plate. A semiconductor substrate is placed on the substrate mover to be electrically connected with the probe card. The semiconductor substrate is electrically tested by the probe card and the test head. When the semiconductor substrate is being tested, the forcing part of the test head is brought into contact with the force-receiving pattern of the probe card.
    Type: Application
    Filed: April 7, 2008
    Publication date: October 16, 2008
    Inventors: Chang-Hyun Cho, Joon-Yeon Kim, Sang-Gu Kang, Sung-Mo Kang, Sang-Kyu Yoo
  • Publication number: 20070046303
    Abstract: A probe card, an apparatus and a method of inspecting an object. In the example method, a first inspection current may be divided into a plurality of first divided inspection currents. Each of the first divided inspection currents may be supplied to a different one of a plurality of first chips. A second inspection current may be selectively applied to a second chip other than the first plurality of chips. In an example, the second inspection current may be substantially equal to at least one of the plurality of first divided inspection currents. In a further example, the example probe card and/or the apparatus may perform the example method.
    Type: Application
    Filed: August 28, 2006
    Publication date: March 1, 2007
    Inventors: Yang-Gi Kim, Sang-Kyu Yoo, Byung-Soo Moon, Mi-Yeon Cho
  • Publication number: 20070035318
    Abstract: A donut-type parallel probe card comprises a main substrate and a plurality of probing blocks installed on a surface of the main substrate, wherein each probe block comprises a plurality of probes. The probing blocks are arranged to fill a first region having an oval shape and surrounding a second region, and no probing blocks are arranged within the second region.
    Type: Application
    Filed: August 8, 2006
    Publication date: February 15, 2007
    Inventors: Sang-kyu Yoo, Sung-mo Kang, Chang-hyun Cho
  • Publication number: 20060170437
    Abstract: A probe card for that may be used to test a plurality of semiconductor chips formed on a wafer. The probe card may include a substrate; a plurality of probe blocks that form a pattern corresponding to the pattern formed by the plurality of semiconductor chips formed on the wafer; and a plurality of probe needles formed in the probe blocks and arranged in a pattern corresponding to a plurality of pads formed in the plurality of semiconductor chips. The use of the probe card may decrease the testing time for the wafer.
    Type: Application
    Filed: January 12, 2006
    Publication date: August 3, 2006
    Inventors: Sang-Kyu Yoo, Ki-Sang Kang, Hoon-Jung Kim, Sung-Mo Kang, Chang-Hyun Cho