Patents by Inventor Dae-Hwan Kang

Dae-Hwan Kang 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: 20240092060
    Abstract: Provided is an unconstrained vibration damping metal sheet with foam pores. The unconstrained vibration damping metal sheet of the present invention comprises: a metal sheet; an organic-inorganic pretreatment layer containing an acrylic resin formed on the metal sheet; and a foam resin layer formed on the pretreatment layer, the foam resin layer containing, based on weight % thereof, a thermoplastic polyvinyl chloride resin: 40-80%, a plasticizer: 5-40%, a foaming agent: 0.1-10%, an oxide-based crosslinker: 1-4%, and spherical silica: 1-10%.
    Type: Application
    Filed: November 30, 2021
    Publication date: March 21, 2024
    Applicant: POSCO Co., Ltd
    Inventors: Jin-Tae Kim, Dae-Gyu Kang, Yang-Ho Choi, Jung-Hwan Lee
  • Patent number: 11349074
    Abstract: Provided are a memory device and a method of manufacturing the same. Memory cells of the memory device are formed separately from first electrode lines and second electrode lines, wherein the second electrode lines over the memory cells are formed by a damascene process, thereby avoiding complications associated with CMP being excessively or insufficiently performed on an insulation layer over the memory cells.
    Type: Grant
    Filed: September 1, 2020
    Date of Patent: May 31, 2022
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Ji-Hyun Jeong, Jin-Woo Lee, Gwan-Hyeob Koh, Dae-Hwan Kang
  • Patent number: 11201192
    Abstract: A memory device includes a first electrode line layer including a plurality of first electrode lines extending on a substrate in a first direction and being spaced apart from each other, a second electrode line layer including a plurality of second electrode lines extending on the first electrode line layer in a second direction that is different from the first direction and being spaced apart from each other, and a memory cell layer including a plurality of first memory cells located at a plurality of intersections between the plurality of first electrode lines and the plurality of second electrode lines, each first memory cell including a selection device layer, an intermediate electrode and a variable resistance layer that are sequentially stacked. A side surface of the variable resistance layer is perpendicular to a top surface of the substrate or inclined to be gradually wider toward an upper portion of the variable resistance layer.
    Type: Grant
    Filed: September 24, 2020
    Date of Patent: December 14, 2021
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Ji-Hyun Jeong, Gwan-hyeob Koh, Dae-hwan Kang
  • Patent number: 11183538
    Abstract: A memory device includes a first electrode line layer including a plurality of first electrode lines extending on a substrate in a first direction and being spaced apart from each other, a second electrode line layer including a plurality of second electrode lines extending on the first electrode line layer in a second direction that is different from the first direction and being spaced apart from each other, and a memory cell layer including a plurality of first memory cells located at a plurality of intersections between the plurality of first electrode lines and the plurality of second electrode lines, each first memory cell including a selection device layer, an intermediate electrode and a variable resistance layer that are sequentially stacked. A side surface of the variable resistance layer is perpendicular to a top surface of the substrate or inclined to be gradually wider toward an upper portion of the variable resistance layer.
    Type: Grant
    Filed: March 31, 2020
    Date of Patent: November 23, 2021
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Ji-hyun Jeong, Gwan-hyeob Koh, Dae-hwan Kang
  • Publication number: 20210013263
    Abstract: A memory device includes a first electrode line layer including a plurality of first electrode lines extending on a substrate in a first direction and being spaced apart from each other, a second electrode line layer including a plurality of second electrode lines extending on the first electrode line layer in a second direction that is different from the first direction and being spaced apart from each other, and a memory cell layer including a plurality of first memory cells located at a plurality of intersections between the plurality of first electrode lines and the plurality of second electrode lines, each first memory cell including a selection device layer, an intermediate electrode and a variable resistance layer that are sequentially stacked. A side surface of the variable resistance layer is perpendicular to a top surface of the substrate or inclined to be gradually wider toward an upper portion of the variable resistance layer.
    Type: Application
    Filed: September 24, 2020
    Publication date: January 14, 2021
    Applicant: Samsung Electronics Co., Ltd.
    Inventors: Ji-Hyun JEONG, Gwan-hyeob KOH, Dae-hwan KANG
  • Publication number: 20200395542
    Abstract: Provided are a memory device and a method of manufacturing the same. Memory cells of the memory device are formed separately from first electrode lines and second electrode lines, wherein the second electrode lines over the memory cells are formed by a damascene process, thereby avoiding complications associated with CMP being excessively or insufficiently performed on an insulation layer over the memory cells.
    Type: Application
    Filed: September 1, 2020
    Publication date: December 17, 2020
    Inventors: Ji-Hyun JEONG, Jin-Woo LEE, Gwan-Hyeob KOH, Dae-Hwan KANG
  • Patent number: 10804466
    Abstract: Provided are a memory device and a method of manufacturing the same. Memory cells of the memory device are formed separately from first electrode lines and second electrode lines, wherein the second electrode lines over the memory cells are formed by a damascene process, thereby avoiding complications associated with CMP being excessively or insufficiently performed on an insulation layer over the memory cells.
    Type: Grant
    Filed: January 15, 2020
    Date of Patent: October 13, 2020
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Ji-Hyun Jeong, Jin-Woo Lee, Gwan-Hyeob Koh, Dae-Hwan Kang
  • Patent number: 10734450
    Abstract: The inventive concept provides a memory device, in which memory cells are arranged to have a low variation in electrical characteristics and thereby enhanced reliability, an electronic apparatus including the memory device, and a method of manufacturing the memory device. In the memory device, memory cells at different levels may be covered with spacers having different thicknesses, and this may control resistance characteristics (e.g., set resistance) of the memory cells and to reduce a vertical variation in electrical characteristics of the memory cells. Furthermore, by adjusting the thicknesses of the spacers, a sensing margin of the memory cells may increase.
    Type: Grant
    Filed: October 29, 2019
    Date of Patent: August 4, 2020
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Kyu-Rie Sim, Gwan-Hyeob Koh, Dae-Hwan Kang
  • Publication number: 20200227481
    Abstract: A memory device includes a first electrode line layer including a plurality of first electrode lines extending on a substrate in a first direction and being spaced apart from each other, a second electrode line layer including a plurality of second electrode lines extending on the first electrode line layer in a second direction that is different from the first direction and being spaced apart from each other, and a memory cell layer including a plurality of first memory cells located at a plurality of intersections between the plurality of first electrode lines and the plurality of second electrode lines, each first memory cell including a selection device layer, an intermediate electrode and a variable resistance layer that are sequentially stacked. A side surface of the variable resistance layer is perpendicular to a top surface of the substrate or inclined to be gradually wider toward an upper portion of the variable resistance layer.
    Type: Application
    Filed: March 31, 2020
    Publication date: July 16, 2020
    Inventors: Ji-hyun JEONG, Gwan-hyeob KOH, Dae-hwan KANG
  • Publication number: 20200152869
    Abstract: Provided are a memory device and a method of manufacturing the same. Memory cells of the memory device are formed separately from first electrode lines and second electrode lines, wherein the second electrode lines over the memory cells are formed by a damascene process, thereby avoiding complications associated with CMP being excessively or insufficiently performed on an insulation layer over the memory cells.
    Type: Application
    Filed: January 15, 2020
    Publication date: May 14, 2020
    Inventors: JI-HYUN JEONG, JIN-WOO LEE, GWAN-HYEOB KOH, DAE-HWAN KANG
  • Patent number: 10644069
    Abstract: A memory device includes a first word line extending in a first direction on a substrate, a first bit line extending in a second direction on the first word line, a first memory cell disposed between the first word line and the first bit line, a second word line extending in the first direction on the first bit line, a second bit line extending in the second direction on the second word line, a second memory cell disposed between the second word line and the second bit line, and a first bit line connection structure connected to the first bit line and the second bit line. The first bit line connection structure includes a first bit line contact connected to the first bit line and a second bit line contact, which is connected to the second bit line and vertically overlaps the first bit line contact.
    Type: Grant
    Filed: September 19, 2018
    Date of Patent: May 5, 2020
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Ji-Hyun Jeong, Dae-Hwan Kang, Du-Eung Kim, Kwang-Jin Lee
  • Patent number: 10636843
    Abstract: A memory device includes a first electrode line layer including a plurality of first electrode lines extending on a substrate in a first direction and being spaced apart from each other, a second electrode line layer including a plurality of second electrode lines extending on the first electrode line layer in a second direction that is different from the first direction and being spaced apart from each other, and a memory cell layer including a plurality of first memory cells located at a plurality of intersections between the plurality of first electrode lines and the plurality of second electrode lines, each first memory cell including a selection device layer, an intermediate electrode and a variable resistance layer that are sequentially stacked. A side surface of the variable resistance layer is perpendicular to a top surface of the substrate or inclined to be gradually wider toward an upper portion of the variable resistance layer.
    Type: Grant
    Filed: February 21, 2019
    Date of Patent: April 28, 2020
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Ji-hyun Jeong, Gwan-hyeob Koh, Dae-hwan Kang
  • Patent number: 10615341
    Abstract: The semiconductor device includes a plurality of first conductive patterns on a substrate, a first selection pattern on each of the plurality of first conductive patterns, a first structure on the first selection pattern, a plurality of second conductive patterns on the first structures, a second selection pattern on each of the plurality of second conductive patterns, a second structure on the second selection pattern, and a plurality of third conductive patterns on the second structures. Each of the plurality first conductive patterns may extend in a first direction. The first structure may include a first variable resistance pattern and a first heating electrode. The first variable resistance pattern and the first heating electrode may contact each other to have a first contact area therebetween. Each of the plurality of second conductive patterns may extend in a second direction crossing the first direction.
    Type: Grant
    Filed: February 15, 2019
    Date of Patent: April 7, 2020
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Kwang-Woo Lee, Dae-Hwan Kang, Gwan-Hyeob Koh
  • Patent number: 10593874
    Abstract: A variable resistance memory device includes first memory cells and second memory cells. The first memory cells are between first and second conductive lines, and at areas at which the first and second conductive lines overlap. The second memory cells are between the second and third conductive lines, and at areas at which the second and third conductive lines overlap. Each first memory cell includes a first variable resistance pattern and a first selection pattern. Each second memory cell includes a second variable resistance pattern and a second selection pattern. At least one of the second memory cells is shifted from a closest one of the first memory cells.
    Type: Grant
    Filed: August 6, 2018
    Date of Patent: March 17, 2020
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Kyu-Rie Sim, Dae-Hwan Kang, Gwan-Hyeob Koh
  • Patent number: 10580979
    Abstract: A memory device including first conductive lines spaced apart from each other and extending in a first direction; second conductive lines spaced apart from each other and extending in a second direction that is different from the first direction; first memory cells having a structure that includes a selection device layer, a middle electrode layer, a variable resistance layer, and a top electrode layer; and insulating structures arranged alternately with the first memory cells in the second direction under the second conductive lines, wherein the first insulating structures have a top surface that is higher than a top surface of the first top electrode layer, and the second conductive lines have a structure that includes convex and concave portions, the convex portions being connected to the top surface of the top electrode layer and the concave portions accommodating the insulating structures between the convex portions.
    Type: Grant
    Filed: August 23, 2018
    Date of Patent: March 3, 2020
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Il-mok Park, Gwan-hyeob Koh, Dae-hwan Kang
  • Publication number: 20200066801
    Abstract: The inventive concept provides a memory device, in which memory cells are arranged to have a low variation in electrical characteristics and thereby enhanced reliability, an electronic apparatus including the memory device, and a method of manufacturing the memory device. In the memory device, memory cells at different levels may be covered with spacers having different thicknesses, and this may control resistance characteristics (e.g., set resistance) of the memory cells and to reduce a vertical variation in electrical characteristics of the memory cells. Furthermore, by adjusting the thicknesses of the spacers, a sensing margin of the memory cells may increase.
    Type: Application
    Filed: October 29, 2019
    Publication date: February 27, 2020
    Inventors: Kyu-Rie Sim, Gwan-Hyeob Koh, Dae-Hwan Kang
  • Patent number: 10566529
    Abstract: Provided are a memory device and a method of manufacturing the same. Memory cells of the memory device are formed separately from first electrode lines and second electrode lines, wherein the second electrode lines over the memory cells are formed by a damascene process, thereby avoiding complications associated with CMP being excessively or insufficiently performed on an insulation layer over the memory cells.
    Type: Grant
    Filed: January 5, 2018
    Date of Patent: February 18, 2020
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Ji-Hyun Jeong, Jin-Woo Lee, Gwan-Hyeob Koh, Dae-Hwan Kang
  • Patent number: 10546999
    Abstract: A variable resistance memory device and a method of manufacturing the same, the device including first conductive lines disposed in a first direction on a substrate, each of the first conductive lines extending in a second direction crossing the first direction, and the first and second directions being parallel to a top surface of the substrate; second conductive lines disposed in the second direction over the first conductive lines, each of the second conductive lines extending in the first direction; a memory unit between the first and second conductive lines, the memory unit being in each area overlapping the first and second conductive lines in a third direction substantially perpendicular to the top surface of the substrate, and the memory unit including a variable resistance pattern; and an insulation layer structure between the first and second conductive lines, the insulation layer structure covering the memory unit and including an air gap in at least a portion of an area overlapping neither the fir
    Type: Grant
    Filed: November 9, 2016
    Date of Patent: January 28, 2020
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Masayuki Terai, Dae-Hwan Kang, Gwan-Hyeob Koh
  • Patent number: 10497751
    Abstract: The inventive concept provides a memory device, in which memory cells are arranged to have a low variation in electrical characteristics and thereby enhanced reliability, an electronic apparatus including the memory device, and a method of manufacturing the memory device. In the memory device, memory cells at different levels may be covered with spacers having different thicknesses, and this may control resistance characteristics (e.g., set resistance) of the memory cells and to reduce a vertical variation in electrical characteristics of the memory cells. Furthermore, by adjusting the thicknesses of the spacers, a sensing margin of the memory cells may increase.
    Type: Grant
    Filed: April 27, 2018
    Date of Patent: December 3, 2019
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Kyu-Rie Sim, Gwan-Hyeob Koh, Dae-Hwan Kang
  • Publication number: 20190189692
    Abstract: A memory device includes a first electrode line layer including a plurality of first electrode lines extending on a substrate in a first direction and being spaced apart from each other, a second electrode line layer including a plurality of second electrode lines extending on the first electrode line layer in a second direction that is different from the first direction and being spaced apart from each other, and a memory cell layer including a plurality of first memory cells located at a plurality of intersections between the plurality of first electrode lines and the plurality of second electrode lines, each first memory cell including a selection device layer, an intermediate electrode and a variable resistance layer that are sequentially stacked. A side surface of the variable resistance layer is perpendicular to a top surface of the substrate or inclined to be gradually wider toward an upper portion of the variable resistance layer.
    Type: Application
    Filed: February 21, 2019
    Publication date: June 20, 2019
    Inventors: Ji-hyun JEONG, Gwan-hyeob KOH, Dae-hwan KANG