Patents by Inventor Kee-won Kim

Kee-won 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).

  • Patent number: 10854677
    Abstract: Image sensors with improved performance and a higher degree of integration are provided. The image sensors include a substrate including a first surface and a second surface opposite to each other, a first organic photoelectric conversion layer on the first surface of the substrate, a first penetration via connected to the first organic photoelectric conversion layer and extending through the substrate, a first floating diffusion region in the substrate adjacent to the second surface of the substrate, and a first transistor structure on the second surface of the substrate, wherein the first transistor structure includes a semiconductor layer configured to connect the first penetration via and the first floating diffusion region, a gate electrode on the semiconductor layer, and a gate dielectric film between the semiconductor layer and the gate electrode.
    Type: Grant
    Filed: September 10, 2019
    Date of Patent: December 1, 2020
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Taek Soo Jeon, Kee Won Kim, Sang Hoon Uhm, Ki Joong Yoon, Ha Jin Lim
  • Publication number: 20200243608
    Abstract: Image sensors with improved performance and a higher degree of integration are provided. The image sensors include a substrate including a first surface and a second surface opposite to each other, a first organic photoelectric conversion layer on the first surface of the substrate, a first penetration via connected to the first organic photoelectric conversion layer and extending through the substrate, a first floating diffusion region in the substrate adjacent to the second surface of the substrate, and a first transistor structure on the second surface of the substrate, wherein the first transistor structure includes a semiconductor layer configured to connect the first penetration via and the first floating diffusion region, a gate electrode on the semiconductor layer, and a gate dielectric film between the semiconductor layer and the gate electrode.
    Type: Application
    Filed: September 10, 2019
    Publication date: July 30, 2020
    Inventors: Taek Soo JEON, Kee Won KIM, Sang Hoon UHM, Ki Joong YOON, Ha Jin LIM
  • Patent number: 10249817
    Abstract: A magnetic device includes a free layer; a pinned layer; a tunnel barrier disposed between the free layer and the pinned layer; a polarization enhancement layer disposed between the tunnel barrier and the pinned layer; and a blocking layer disposed between the polarization enhancement layer and the pinned layer, wherein the blocking layer includes a first diffusion trap layer and a second diffusion trap layer disposed on the first diffusion trap layer.
    Type: Grant
    Filed: August 15, 2017
    Date of Patent: April 2, 2019
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Ki-woong Kim, Kee-won Kim, Se-chung Oh, Yong-sung Park, Ju-hyun Kim
  • Patent number: 10128433
    Abstract: Provided is a magnetic memory device. The magnetic memory device includes a first magnetization layer, a tunnel barrier disposed on the first magnetization layer, a second magnetization layer disposed on the tunnel barrier, and a spin current assisting layer disposed on at least a portion of a sidewall of the second magnetization layer.
    Type: Grant
    Filed: October 24, 2016
    Date of Patent: November 13, 2018
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Ung-hwan Pi, Kwang-seok Kim, Kee-won Kim, Sung-chul Lee, Young-man Jang
  • Patent number: 10096650
    Abstract: A magnetoresistive random access memory device includes a free layer, a tunnel barrier layer, an insulation barrier layer, a pinned layer, and a vertical polarizer structure. The tunnel barrier layer and the insulation barrier layer directly contacts different surfaces of the free layer. The pinned layer structure contacts the tunnel barrier layer and includes at least one pinned layer. The vertical polarizer structure contacts the insulation barrier layer and includes a plurality of magnetization multi-layered structures sequentially stacked. Each magnetization multi-layered structure includes a non-magnetic layer and a magnetic layer sequentially stacked. The pinned layer and the magnetic layer have magnetization directions anti-parallel to each other.
    Type: Grant
    Filed: November 28, 2017
    Date of Patent: October 9, 2018
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Kwang-Seok Kim, Kee-Won Kim, Whan-Kyun Kim, Sang-Hwan Park, Young-Man Jang
  • Publication number: 20180083067
    Abstract: A magnetoresistive random access memory device includes a free layer, a tunnel barrier layer, an insulation barrier layer, a pinned layer, and a vertical polarizer structure. The tunnel barrier layer and the insulation barrier layer directly contacts different surfaces of the free layer. The pinned layer structure contacts the tunnel barrier layer and includes at least one pinned layer. The vertical polarizer structure contacts the insulation barrier layer and includes a plurality of magnetization multi-layered structures sequentially stacked. Each magnetization multi-layered structure includes a non-magnetic layer and a magnetic layer sequentially stacked. The pinned layer and the magnetic layer have magnetization directions anti-parallel to each other.
    Type: Application
    Filed: November 28, 2017
    Publication date: March 22, 2018
    Inventors: Kwang-Seok KIM, Kee-Won KIM, Whan-Kyun KIM, Sang-Hwan PARK, Young-Man JANG
  • Publication number: 20180026182
    Abstract: A magnetic device includes a free layer; a pinned layer; a tunnel barrier disposed between the free layer and the pinned layer; a polarization enhancement layer disposed between the tunnel barrier and the pinned layer; and a blocking layer disposed between the polarization enhancement layer and the pinned layer, wherein the blocking layer includes a first diffusion trap layer and a second diffusion trap layer disposed on the first diffusion trap layer.
    Type: Application
    Filed: August 15, 2017
    Publication date: January 25, 2018
    Inventors: Ki-woong KIM, Kee-won KIM, Se-chung OH, Yong-sung PARK, Ju-hyun KIM
  • Patent number: 9837468
    Abstract: A magnetoresistive random access memory device includes a free layer, a tunnel barrier layer, an insulation barrier layer, a pinned layer, and a vertical polarizer structure. The tunnel barrier layer and the insulation barrier layer directly contacts different surfaces of the free layer. The pinned layer structure contacts the tunnel barrier layer and includes at least one pinned layer. The vertical polarizer structure contacts the insulation barrier layer and includes a plurality of magnetization multi-layered structures sequentially stacked. Each magnetization multi-layered structure includes a non-magnetic layer and a magnetic layer sequentially stacked. The pinned layer and the magnetic layer have magnetization directions anti-parallel to each other.
    Type: Grant
    Filed: July 6, 2016
    Date of Patent: December 5, 2017
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Kwang-Seok Kim, Kee-Won Kim, Whan-Kyun Kim, Sang-Hwan Park, Young-Man Jang
  • Patent number: 9773972
    Abstract: A magnetic device includes a free layer; a pinned layer; a tunnel barrier disposed between the free layer and the pinned layer; a polarization enhancement layer disposed between the tunnel barrier and the pinned layer; and a blocking layer disposed between the polarization enhancement layer and the pinned layer, wherein the blocking layer includes a first diffusion trap layer and a second diffusion trap layer disposed on the first diffusion trap layer.
    Type: Grant
    Filed: January 30, 2017
    Date of Patent: September 26, 2017
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Ki-woong Kim, Kee-won Kim, Se-chung Oh, Yong-sung Park, Ju-hyun Kim
  • Publication number: 20170110508
    Abstract: A magnetoresistive random access memory device includes a free layer, a tunnel barrier layer, an insulation barrier layer, a pinned layer, and a vertical polarizer structure. The tunnel barrier layer and the insulation barrier layer directly contacts different surfaces of the free layer. The pinned layer structure contacts the tunnel barrier layer and includes at least one pinned layer. The vertical polarizer structure contacts the insulation barrier layer and includes a plurality of magnetization multi-layered structures sequentially stacked. Each magnetization multi-layered structure includes a non-magnetic layer and a magnetic layer sequentially stacked. The pinned layer and the magnetic layer have magnetization directions anti-parallel to each other.
    Type: Application
    Filed: July 6, 2016
    Publication date: April 20, 2017
    Inventors: Kwang-Seok KIM, Kee-Won KIM, Whan-Kyun KIM, Sang-Hwan PARK, Young-Man JANG
  • Patent number: 9570674
    Abstract: A magnetic device includes a free layer including a first magnetization layer; a pinned layer including a second magnetization layer; and a tunnel barrier layer provided between the free layer and the pinned layer. At least one selected from the free layer and the pinned layer includes a synthetic antiferromagnetic (SAF) structure formed of a first ferromagnetic layer, a second ferromagnetic layer, and a ruthenium-rhodium (Ru—Rh) alloy layer provided between the first and second ferromagnetic layers.
    Type: Grant
    Filed: April 22, 2015
    Date of Patent: February 14, 2017
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Kee-won Kim, Sang-hwan Park, Sang-yong Kim
  • Patent number: 9570675
    Abstract: Magnetoresistive structures, magnetic random-access memory devices including the same, and methods of manufacturing the magnetoresistive structure, include a first magnetic layer having a magnetization direction that is fixed, a second magnetic layer corresponding to the first magnetic layer, wherein a magnetization direction of the second magnetic layer is changeable, and a magnetoresistance (MR) enhancing layer and an intermediate layer both between the first magnetic layer and the second magnetic layer.
    Type: Grant
    Filed: January 29, 2014
    Date of Patent: February 14, 2017
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Kee-won Kim, Kwang-seok Kim, Sung-chul Lee, Young-man Jang, Ung-hwan Pi
  • Publication number: 20170040529
    Abstract: Provided is a magnetic memory device. The magnetic memory device includes a first magnetization layer, a tunnel barrier disposed on the first magnetization layer, a second magnetization layer disposed on the tunnel barrier, and a spin current assisting layer disposed on at least a portion of a sidewall of the second magnetization layer.
    Type: Application
    Filed: October 24, 2016
    Publication date: February 9, 2017
    Inventors: Ung-hwan PI, Kwang-seok KIM, Kee-won KIM, Sung-chul LEE, Young-man JANG
  • Patent number: 9530478
    Abstract: A memory device using a spin hall effect, and methods of manufacturing and operating the memory device, include applying a first operational current to a bit line of the memory device such that a spin current is applied to a magnetic tunnel junction (MTJ) cell coupled to the bit line due to a material in the bit line, wherein the bit line is electrically connected to a word line via the MTJ cell, and the word line intersects the bit line.
    Type: Grant
    Filed: January 23, 2014
    Date of Patent: December 27, 2016
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Ung-hwan Pi, Kwang-seok Kim, Kee-won Kim, Sung-chul Lee, Young-man Jang
  • Patent number: 9508925
    Abstract: Provided is a magnetic memory device. The magnetic memory device includes a first magnetization layer, a tunnel barrier disposed on the first magnetization layer, a second magnetization layer disposed on the tunnel barrier, and a spin current assisting layer disposed on at least a portion of a sidewall of the second magnetization layer.
    Type: Grant
    Filed: August 3, 2015
    Date of Patent: November 29, 2016
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Ung-hwan Pi, Kwang-seok Kim, Kee-won Kim, Sung-chul Lee, Young-man Jang
  • Patent number: 9437654
    Abstract: Magnetic memory devices may include a substrate, a circuit device on the substrate, a plurality of lower electrodes electrically connected to the circuit device, a magnetic tunnel junction (MTJ) structure commonly provided on the plurality of the lower electrodes, and a plurality of upper electrodes on the MTJ structure. The MTJ structure may include a plurality of magnetic material patterns and a plurality of insulation material patterns separating the magnetic material patterns from each other.
    Type: Grant
    Filed: May 19, 2015
    Date of Patent: September 6, 2016
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Sung-Chul Lee, Kwang-Seok Kim, Kee-Won Kim, Young-Man Jang, Ung-Hwan Pi
  • Publication number: 20160093669
    Abstract: Magnetic memory devices may include a substrate, a circuit device on the substrate, a plurality of lower electrodes electrically connected to the circuit device, a magnetic tunnel junction (MTJ) structure commonly provided on the plurality of the lower electrodes, and a plurality of upper electrodes on the MTJ structure. The MTJ structure may include a plurality of magnetic material patterns and a plurality of insulation material patterns separating the magnetic material patterns from each other.
    Type: Application
    Filed: May 19, 2015
    Publication date: March 31, 2016
    Inventors: Sung-Chul LEE, Kwang-Seok KIM, Kee-Won KIM, Young-Man JANG, Ung-Hwan PI
  • Publication number: 20160079518
    Abstract: Provided is a magnetic memory device. The magnetic memory device includes a first magnetization layer, a tunnel barrier disposed on the first magnetization layer, a second magnetization layer disposed on the tunnel barrier, and a spin current assisting layer disposed on at least a portion of a sidewall of the second magnetization layer.
    Type: Application
    Filed: August 3, 2015
    Publication date: March 17, 2016
    Inventors: Ung-hwan PI, Kwang-seok KIM, Kee-won KIM, Sung-chul LEE, Young-man JANG
  • Patent number: 9236105
    Abstract: Magnetic memory devices include a magnetoresistive cell including a free layer having a variable magnetization direction and a pinned layer having a fixed magnetization direction, a bit line on the magnetoresistive cell and including a spin Hall effect material layer exhibiting a spin Hall effect and contacting the free layer; and a lower electrode under the magnetoresistive cell. A voltage is applied between the bit line and the lower electrode so that current passes through the magnetoresistive cell.
    Type: Grant
    Filed: February 19, 2014
    Date of Patent: January 12, 2016
    Assignee: Samsung Electornics Co., Ltd.
    Inventors: Ung-hwan Pi, Kwang-seok Kim, Kee-won Kim, Sung-chul Lee, Young-man Jang
  • Patent number: 9230623
    Abstract: Magnetic memory devices, and methods of operating the same, include a magnetoresistive element including a free layer, a pinned layer, and a separation layer between the free layer and the pinned layer. The devices, and methods, further include a first conductive line connected to the free layer and configured to apply a Rashba field to, or induce the Rashba field in, the free layer, and a second conductive line spaced apart from the free layer and configured to apply an external magnetic field to the free layer. A magnetization direction of the free layer is switchable by application of the Rashba field and the external magnetic field to the free layer.
    Type: Grant
    Filed: June 21, 2013
    Date of Patent: January 5, 2016
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Kwang-seok Kim, Ung-hwan Pi, Kee-won Kim, Sung-chul Lee, Young-man Jang