Patents by Inventor Dahm YU

Dahm YU 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: 11860083
    Abstract: An apparatus for testing an object may include a test chamber, a first chamber, a second chamber, and a gas supply module. The test chamber receives a test board for testing an object. The first chamber is under the test chamber and receives a lower surface of the test board. The second chamber surrounds the first chamber to isolate the first chamber from ambient air. The gas supply module supplies a dry gas to the second chamber to provide a positive pressure higher than an ambient pressure, thereby preventing the ambient air from infiltrating into the first chamber. Thus, during the testing of the object at a low temperature, the second chamber may prevent the humid ambient air from infiltrating into the first chamber to prevent condensation of water on the lower surface of the test board.
    Type: Grant
    Filed: July 8, 2021
    Date of Patent: January 2, 2024
    Assignee: SAMSUNG ELECTRONICS CO, LTD.
    Inventors: Dahm Yu, Jaehyun Kim, Seonmi Lee, Hyunmin Kwon, Sangjun Lee
  • Patent number: 11614483
    Abstract: A test apparatus and an automatic test equipment having the same are disclosed. The test apparatus includes a test head having a test area, a socket board combined to the test area of the test, the socket board including a socket body and an active device attached on a first surface of the socket body, the active device configured to operate a semiconductor package, and a heat exchanger arranged on an upper portion of the test head, the heat exchanger being in contact with the socket board.
    Type: Grant
    Filed: January 19, 2021
    Date of Patent: March 28, 2023
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Dahm Yu, Hyunmin Kwon, Jaehyun Kim
  • Publication number: 20220178815
    Abstract: An apparatus for testing an object may include a test chamber, a first chamber, a second chamber, and a gas supply module. The test chamber receives a test board for testing an object. The first chamber is under the test chamber and receives a lower surface of the test board. The second chamber surrounds the first chamber to isolate the first chamber from ambient air. The gas supply module supplies a dry gas to the second chamber to provide a positive pressure higher than an ambient pressure, thereby preventing the ambient air from infiltrating into the first chamber. Thus, during the testing of the object at a low temperature, the second chamber may prevent the humid ambient air from infiltrating into the first chamber to prevent condensation of water on the lower surface of the test board.
    Type: Application
    Filed: July 8, 2021
    Publication date: June 9, 2022
    Inventors: Dahm Yu, Jaehyun Kim, Seonmi Lee, Hyunmin Kwon, Sangjun Lee
  • Publication number: 20220057444
    Abstract: A semiconductor package test apparatus is provided. A semiconductor package test apparatus comprises a test board including a plurality of sensors, a chamber into which the test board is loaded, and a controller configured to control a temperature of the chamber, wherein the controller adjusts the temperature using the plurality of sensors.
    Type: Application
    Filed: August 19, 2021
    Publication date: February 24, 2022
    Applicant: Samsung Electronics Co., Ltd.
    Inventors: Sung Ok KIM, Min Woo KIM, Ho Gyung KIM, Dahm YU, Jae Hyun KIM
  • Patent number: 11193970
    Abstract: Disclosed are a test chamber and a test apparatus having the same. The test chamber includes a test compartment configured to support a plurality of test boards, each being configured to secure a test object. The test chamber applies a test signal to the test object. The test chamber includes an inlet side and a discharge side, and a supply duct vertically extending along a height of the test compartment. The supply duct supplies the inlet side of the test compartment with the test fluid. The test chamber includes a fluid controller to uniformly control a distribution of a test fluid in the supply duct and uniformly supply the test compartment with the test fluid. The disclosed test chamber and test apparatus provide a uniform test temperature and thereby improve a test reliability of a test object such as a semiconductor or semiconductor package.
    Type: Grant
    Filed: September 5, 2019
    Date of Patent: December 7, 2021
    Assignees: SAMSUNG ELECTRONICS CO., LTD., KOREA ADVANCED INSTITUTE OF SCIENCE AND TECHNOLOGY
    Inventors: Seon-Mi Lee, Sung Jin Kim, Ja-Hwan Ku, Jae-Hyun Kim, Gilho Lee, Dahm Yu, Jonghyun Lim
  • Publication number: 20210325450
    Abstract: A test apparatus and an automatic test equipment having the same are disclosed. The test apparatus includes a test head having a test area, a socket board combined to the test area of the test, the socket board including a socket body and an active device attached on a first surface of the socket body, the active device configured to operate a semiconductor package, and a heat exchanger arranged on an upper portion of the test head, the heat exchanger being in contact with the socket board.
    Type: Application
    Filed: January 19, 2021
    Publication date: October 21, 2021
    Inventors: Dahm Yu, Hyunmin Kwon, Jaehyun Kim
  • Publication number: 20200271715
    Abstract: Disclosed are a test chamber and a test apparatus having the same. The test chamber includes a test compartment configured to support a plurality of test boards, each being configured to secure a test object. The test chamber applies a test signal to the test object. The test chamber includes an inlet side and a discharge side, and a supply duct vertically extending along a height of the test compartment. The supply duct supplies the inlet side of the test compartment with the test fluid. The test chamber includes a fluid controller to uniformly control a distribution of a test fluid in the supply duct and uniformly supply the test compartment with the test fluid. The disclosed test chamber and test apparatus provide a uniform test temperature and thereby improve a test reliability of a test object such as a semiconductor or semiconductor package.
    Type: Application
    Filed: September 5, 2019
    Publication date: August 27, 2020
    Applicant: KOREA ADVANCED INSTITUTE OF SCIENCE AND TECHNOLOGY
    Inventors: Seon-Mi LEE, Sung Jin KIM, Ja-Hwan KU, Jae-Hyun KIM, Gilho LEE, Dahm YU, Jonghyun LIM