Patents by Inventor Minhwi Kim

Minhwi Kim 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: 20230055963
    Abstract: A memory device is provided. The memory device includes: a memory cell array including a plurality of memory cells; a page buffer circuit connected to the memory cell array through a plurality of bit lines and including a page buffer connected to each of the plurality of bit lines, the page buffer including at least one first latch for storing data based on a voltage level of a first sensing node; and a control circuit configured to adjust a level of a voltage signal provided to the page buffer circuit. The page buffer includes a trip control transistor arranged between the at least one first latch and the first sensing node, and wherein the control circuit is further configured to, based on a read operation being performed on the memory cell array, control a trip control voltage to be provided to a gate of the trip control transistor. A level of the trip control voltage varies according to a temperature of the memory device.
    Type: Application
    Filed: March 31, 2022
    Publication date: February 23, 2023
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Yongsung CHO, Kyoman Kang, Minhwi Kim, Ilhan Park, Jinyoung Chun
  • Patent number: 10050195
    Abstract: A resistive random access memory device having a nano-scale tip and a nanowire is provided. A memory array using the same also is provided and fabrication method thereof. A technique is provided for forming a bottom electrode having an upwardly protruding tapered tip structure through etching a semiconductor substrate and a top electrode being formed of a nanowire and a technique forming a resistive random access memory device at a location intersected with each other in order that an area of each memory cell is minimized and that an electric field is focused on the tip of the bottom electrode across the top electrode.
    Type: Grant
    Filed: February 20, 2018
    Date of Patent: August 14, 2018
    Assignees: Seoul National University R&DB FOUNDATION, INCHEON UNIVERSITY INDUSTRY ACADEMIC COOPERATION FOUNDATION
    Inventors: Byung-Gook Park, Sung Hun Jin, Sunghun Jung, Minhwi Kim
  • Publication number: 20180190903
    Abstract: A resistive random access memory device having a nano-scale tip and a nanowire is provided. A memory array using the same also is provided and fabrication method thereof. A technique is provided for forming a bottom electrode having an upwardly protruding tapered tip structure through etching a semiconductor substrate and a top electrode being formed of a nanowire and a technique forming a resistive random access memory device at a location intersected with each other in order that an area of each memory cell is minimized and that an electric field is focused on the tip of the bottom electrode across the top electrode.
    Type: Application
    Filed: February 20, 2018
    Publication date: July 5, 2018
    Inventors: Byung-Gook Park, Sung Hun Jin, Sunghun Jung, Minhwi Kim
  • Publication number: 20160104839
    Abstract: A resistive random access memory device having a nano-scale tip and a nanowire is provided. A memory array using the same also is provided and fabrication method thereof. A technique is provided for forming a bottom electrode having an upwardly protruding tapered tip structure through etching a semiconductor substrate and a top electrode being formed of a nanowire and a technique forming a resistive random access memory device at a location intersected with each other in order that an area of each memory cell is minimized and that an electric field is focused on the tip of the bottom electrode across the top electrode.
    Type: Application
    Filed: October 13, 2015
    Publication date: April 14, 2016
    Inventors: Byung-Gook Park, Sung Hun Jin, Sunghun Jung, Minhwi Kim