Patents by Inventor Cheongwon Lee

Cheongwon Lee 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).

  • TEG circuit, semiconductor device, and test method of the TEG circuit
    Patent number: 12392814
    Abstract: An embodiment provides a test element group (TEG) circuit, including: a first pad configured for a test voltage to be applied; an amplifier including a first input terminal connected to the first pad, a second input terminal connected to a first terminal of a test transistor, and an output terminal electrically connected to the second input terminal; a variable resistor including one terminal connected to the output terminal of the amplifier and the other terminal connected to the first terminal of the test transistor; and a gate driving circuit that supplies a gate voltage to a gate of the test transistor.
    Type: Grant
    Filed: August 23, 2023
    Date of Patent: August 19, 2025
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Cheongwon Lee, Gyosoo Choo, Youngwoo Park, Seunghoon Lee, Jinwoo Choi
  • TEG CIRCUIT, SEMICONDUCTOR DEVICE, AND TEST METHOD OF THE TEG CIRCUIT
    Publication number: 20240125841
    Abstract: An embodiment provides a test element group (TEG) circuit, including: a first pad configured for a test voltage to be applied; an amplifier including a first input terminal connected to the first pad, a second input terminal connected to a first terminal of a test transistor, and an output terminal electrically connected to the second input terminal; a variable resistor including one terminal connected to the output terminal of the amplifier and the other terminal connected to the first terminal of the test transistor; and a gate driving circuit that supplies a gate voltage to a gate of the test transistor.
    Type: Application
    Filed: August 23, 2023
    Publication date: April 18, 2024
    Inventors: Cheongwon Lee, Gyosoo Choo, Youngwoo Park, Seunghoon Lee, Jinwoo Choi