Patents by Inventor Dong Han KO

Dong Han KO 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: 11955157
    Abstract: A PUF apparatus comprises: a PUF cell array in which a plurality of PUF cells are arranged each including a FeFET pair whose gates are commonly connected to a corresponding word line among a plurality of word lines, and whose drains and sources are connected to a corresponding bit line pair and a corresponding source line pair among a plurality of bit line pairs and a plurality of source line pairs running in a direction crossing the plurality of word lines; and a read-write-back block which is activated according to a read enable signal, and senses and amplifies a voltage difference occurring in a corresponding bit line pair among the plurality of bit line pairs according to the difference in driving strength due to a deviation in a manufacturing process of the FeFET pair in the PUF cell selected by a selected word line among the plurality of word lines.
    Type: Grant
    Filed: February 14, 2022
    Date of Patent: April 9, 2024
    Assignee: INDUSTRY-ACADEMIC CORPORATION FOUNDATION, YONSEI UNIVERSITY
    Inventors: Seong Ook Jung, Se Hee Lim, Tae Woo Oh, Se Keon Kim, Dong Han Ko
  • Patent number: 11955155
    Abstract: A nonvolatile memory device according to the embodiment includes: a first inverter; and a second inverter cross-coupled to the first inverter, wherein the second inverter includes a pull-up transistor, a pull-down transistor, and a ferroelectric field effect transistor having gate nodes connected to each other, and a restore transistor having one electrode connected to the ferroelectric field effect transistor, and the second inverter stores data in a nonvolatile manner.
    Type: Grant
    Filed: January 28, 2022
    Date of Patent: April 9, 2024
    Assignee: UIF (UNIVERSITY INDUSTRY FOUNDATION), YONSEI UNIVERSITY
    Inventors: Seong Ook Jung, Se Keon Kim, Tae Woo Oh, Se Hee Lim, Dong Han Ko
  • Publication number: 20240036827
    Abstract: There is provided a computation apparatus located in a memory module and configured to perform computation with data stored in the memory, the computation apparatus including: a plurality of word lines to which an input is provided; a plurality of unit arrays which store a weight having a sign and perform a multiplication operation on the input provided from the word line and the weight; and an accumulation line connected to the plurality of unit arrays and on which results of the multiplication operations performed by the plurality of unit arrays are accumulated, wherein each of the plurality of unit arrays includes a source follower amplifier including a ferroelectric transistor configured to output a voltage corresponding to a result of the multiplication operation with respect to an input voltage provided to the word line.
    Type: Application
    Filed: February 16, 2023
    Publication date: February 1, 2024
    Applicant: UIF (University Industry Foundation), Yonsei University
    Inventors: Seong Ook JUNG, Dong Han KO, Young Kyu LEE, Se Hee LIM
  • Patent number: 11790971
    Abstract: A ferroelectric random access memory device comprises: a memory cell array including a plurality of memory cells each having one ferroelectric transistor (FeFET) connected between a read line of a plurality of read lines and a source line of a plurality of source lines and one transistor connected between a bit line of a plurality of bit lines and a gate of the FeFET and having a gate connected to a corresponding word line of a plurality of word lines; and a read/write control unit, when address information for a memory cell to be written is applied with a write command and data, selecting a word line and a read line corresponding to a row address and applying a write voltage having a positive voltage level, and applying a ground voltage to the selected read line, and applying the write voltage to a bit line corresponding to a memory cell.
    Type: Grant
    Filed: January 4, 2022
    Date of Patent: October 17, 2023
    Assignee: INDUSTRY-ACADEMIC COOPERATION FOUNDATION, YONSEI UNIVERSITY
    Inventors: Seong Ook Jung, Dong Han Ko, Tae Woo Oh, Se Hee Lim, Se Keon Kim
  • Publication number: 20220383927
    Abstract: A PUF apparatus comprises: a PUF cell array in which a plurality of PUF cells are arranged each including a FeFET pair whose gates are commonly connected to a corresponding word line among a plurality of word lines, and whose drains and sources are connected to a corresponding bit line pair and a corresponding source line pair among a plurality of bit line pairs and a plurality of source line pairs running in a direction crossing the plurality of word lines; and a read-write-back block which is activated according to a read enable signal, and senses and amplifies a voltage difference occurring in a corresponding bit line pair among the plurality of bit line pairs according to the difference in driving strength due to a deviation in a manufacturing process of the FeFET pair in the PUF cell selected by a selected word line among the plurality of word lines.
    Type: Application
    Filed: February 14, 2022
    Publication date: December 1, 2022
    Inventors: Seong Ook JUNG, Se Hee LIM, Tae Woo OH, Se Keon KIM, Dong Han KO
  • Publication number: 20220383926
    Abstract: Exemplary embodiments provide a sensing amplifier based flip-flop applying a nonvolatile memory device which is applicable to a mobile device which has a small hardware area, uses a small control signal, does not include a separate write circuit, has low writing power consumption, a short reading time and small power consumption, and requires a low power operation.
    Type: Application
    Filed: June 17, 2022
    Publication date: December 1, 2022
    Inventors: Seong Ook JUNG, Se Keon KIM, Tae Woo OH, Se Hee LIM, Dong Han KO
  • Publication number: 20220254398
    Abstract: A nonvolatile memory device according to the embodiment includes: a first inverter; and a second inverter cross-coupled to the first inverter, wherein the second inverter includes a pull-up transistor, a pull-down transistor, and a ferroelectric field effect transistor having gate nodes connected to each other, and a restore transistor having one electrode connected to the ferroelectric field effect transistor, and the second inverter stores data in a nonvolatile manner.
    Type: Application
    Filed: January 28, 2022
    Publication date: August 11, 2022
    Inventors: Seong Ook JUNG, Se Keon KIM, Tae Woo OH, Se Hee LIM, Dong Han KO
  • Publication number: 20220215870
    Abstract: A ferroelectric random access memory device comprises: a memory cell array including a plurality of memory cells each having one ferroelectric transistor (FeFET) connected between a read line of a plurality of read lines and a source line of a plurality of source lines and one transistor connected between a bit line of a plurality of bit lines and a gate of the FeFET and having a gate connected to a corresponding word line of a plurality of word lines; and a read/write control unit, when address information for a memory cell to be written is applied with a write command and data, selecting a word line and a read line corresponding to a row address and applying a write voltage having a positive voltage level, and applying a ground voltage to the selected read line, and applying the write voltage to a bit line corresponding to a memory cell.
    Type: Application
    Filed: January 4, 2022
    Publication date: July 7, 2022
    Inventors: Seong Ook JUNG, Dong Han KO, Tae Woo OH, Se Hee LIM, Se Keon KIM
  • Publication number: 20220090809
    Abstract: Provided is a heat pump system including a compressor for compressing a refrigerant the heat pump system including: an input interface configured to receive an input of an authentication code; a display configured to display the authentication code input through the input interface; and a controller to control an operation of the heat pump system according to whether a control program to control the operation is to be activated based on the authentication code input through the input interface.
    Type: Application
    Filed: December 6, 2021
    Publication date: March 24, 2022
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Seok Hyun JANG, Jae-Yang LEE, Dong Han KO, Yong Sang Kong, Suk Ho LEE, Min CHANG