Patents by Inventor Hong Ju Suh

Hong Ju Suh 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: 10311929
    Abstract: According to an embodiment, a resistance change memory includes a semiconductor substrate, a transistor having a control terminal, a first terminal and a second terminal, the transistor provided on the semiconductor substrate, an insulating layer covering the transistor, a first conductive line connected to the first terminal and provided on the insulating layer, a second conductive line provided on the insulating layer, and a resistance change element connected between the second terminal and the second conductive line. The first conductive line has a width greater than a width of the second conductive line in a direction in which the first and second conductive lines are arranged.
    Type: Grant
    Filed: December 8, 2017
    Date of Patent: June 4, 2019
    Assignees: TOSHIBA MEMORY CORPORATION, SK HYNIX INC.
    Inventors: Hisanori Aikawa, Tatsuya Kishi, Keisuke Nakatsuka, Satoshi Inaba, Masaru Toko, Keiji Hosotani, Jae Yun Yi, Hong Ju Suh, Se Dong Kim
  • Patent number: 10211391
    Abstract: A semiconductor device includes a resistance variable element including a free magnetic layer, a tunnel barrier layer and a pinned magnetic layer; and a magnetic correction layer disposed over the resistance variable element to be separated from the resistance variable element, and having a magnetization direction which is opposite to a magnetization direction of the pinned magnetic layer.
    Type: Grant
    Filed: April 5, 2018
    Date of Patent: February 19, 2019
    Assignee: SK hynix Inc.
    Inventors: Seok-Pyo Song, Se-Dong Kim, Hong-Ju Suh
  • Publication number: 20180226568
    Abstract: A semiconductor device includes a resistance variable element including a free magnetic layer, a tunnel barrier layer and a pinned magnetic layer; and a magnetic correction layer disposed over the resistance variable element to be separated from the resistance variable element, and having a magnetization direction which is opposite to a magnetization direction of the pinned magnetic layer.
    Type: Application
    Filed: April 5, 2018
    Publication date: August 9, 2018
    Inventors: Seok-Pyo Song, Se-Dong Kim, Hong-Ju Suh
  • Publication number: 20180102156
    Abstract: According to an embodiment, a resistance change memory includes a semiconductor substrate, a transistor having a control terminal, a first terminal and a second terminal, the transistor provided on the semiconductor substrate, an insulating layer covering the transistor, a first conductive line connected to the first terminal and provided on the insulating layer, a second conductive line provided on the insulating layer, and a resistance change element connected between the second terminal and the second conductive line. The first conductive line has a width greater than a width of the second conductive line in a direction in which the first and second conductive lines are arranged.
    Type: Application
    Filed: December 8, 2017
    Publication date: April 12, 2018
    Applicants: TOSHIBA MEMORY CORPORATION, SK HYNIX INC.
    Inventors: Hisanori AIKAWA, Tatsuya KISHI, Keisuke NAKATSUKA, Satoshi INABA, Masaru TOKO, Keiji HOSOTANI, Jae Yun YI, Hong Ju SUH, Se Dong KIM
  • Patent number: 9941464
    Abstract: A semiconductor device includes a resistance variable element including a free magnetic layer, a tunnel barrier layer and a pinned magnetic layer; and a magnetic correction layer disposed over the resistance variable element to be separated from the resistance variable element, and having a magnetization direction which is opposite to a magnetization direction of the pinned magnetic layer.
    Type: Grant
    Filed: December 28, 2015
    Date of Patent: April 10, 2018
    Assignee: SK hynix Inc.
    Inventors: Seok-Pyo Song, Se-Dong Kim, Hong-Ju Suh
  • Patent number: 9847115
    Abstract: An electronic device may include a semiconductor memory. The semiconductor memory may include a global line pair including a global bit line and a global source line; a plurality of cell matrices coupled between the global bit line and the global source line, each cell matrix including a plurality of local line pairs and a plurality of storage cells that are coupled to the plurality of local line pairs, wherein each storage cell is operable to store data and is coupled between local lines of a corresponding local line pair; and a plurality of isolation switch pairs that couple the plurality of cell matrices to the global bit line and the global source line of the global line pair, one isolation switch pair per cell matrix.
    Type: Grant
    Filed: November 2, 2016
    Date of Patent: December 19, 2017
    Assignee: SK hynix Inc.
    Inventors: Jae-Yun Yi, Hong-Ju Suh, Se-Dong Kim
  • Publication number: 20170337961
    Abstract: An electronic device may include a semiconductor memory. The semiconductor memory may include a global line pair including a global bit line and a global source line; a plurality of cell matrices coupled between the global bit line and the global source line, each cell matrix including a plurality of local line pairs and a plurality of storage cells that are coupled to the plurality of local line pairs, wherein each storage cell is operable to store data and is coupled between local lines of a corresponding local line pair; and a plurality of isolation switch pairs that couple the plurality of cell matrices to the global bit line and the global source line of the global line pair, one isolation switch pair per cell matrix.
    Type: Application
    Filed: November 2, 2016
    Publication date: November 23, 2017
    Inventors: Jae-Yun Yi, Hong-Ju Suh, Se-Dong Kim
  • Publication number: 20160118575
    Abstract: A semiconductor device includes a resistance variable element including a free magnetic layer, a tunnel barrier layer and a pinned magnetic layer; and a magnetic correction layer disposed over the resistance variable element to be separated from the resistance variable element, and having a magnetization direction which is opposite to a magnetization direction of the pinned magnetic layer.
    Type: Application
    Filed: December 28, 2015
    Publication date: April 28, 2016
    Inventors: Seok-Pyo Song, Se-Dong Kim, Hong-Ju Suh
  • Patent number: 9223519
    Abstract: A semiconductor device includes a resistance variable element including a free magnetic layer, a tunnel barrier layer and a pinned magnetic layer; and a magnetic correction layer disposed over the resistance variable element to be separated from the resistance variable element, and having a magnetization direction which is opposite to a magnetization direction of the pinned magnetic layer.
    Type: Grant
    Filed: October 22, 2013
    Date of Patent: December 29, 2015
    Assignee: SK hynix Inc.
    Inventors: Seok-Pyo Song, Se-Dong Kim, Hong-Ju Suh
  • Publication number: 20140250244
    Abstract: A semiconductor device includes a resistance variable element including a free magnetic layer, a tunnel barrier layer and a pinned magnetic layer; and a magnetic correction layer disposed over the resistance variable element to be separated from the resistance variable element, and having a magnetization direction which is opposite to a magnetization direction of the pinned magnetic layer.
    Type: Application
    Filed: October 22, 2013
    Publication date: September 4, 2014
    Applicant: SK HYNIX INC.
    Inventors: Seok-Pyo Song, Se-Dong Kim, Hong-Ju Suh
  • Patent number: 8345474
    Abstract: A magnetic memory device may include a tunnel barrier, a reference layer on a first side of the tunnel barrier, and a free layer on a second side of the tunnel barrier so that the tunnel barrier is between the reference and free layers. The free layer may include a first magnetic layer adjacent the tunnel barrier, a nonmagnetic layer on the first magnetic layer, and a second magnetic layer on the nonmagnetic layer. More particularly, the nonmagnetic layer may be between the first and second magnetic layers, and the first magnetic layer may be between the tunnel barrier and the second magnetic layer. A product of a saturated magnetization of the first magnetic layer and a thickness of the first magnetic layer may be less than a product of a saturated magnetization of the second magnetic layer and a thickness of the second magnetic layer. Related methods are also discussed.
    Type: Grant
    Filed: April 28, 2010
    Date of Patent: January 1, 2013
    Assignees: Samsung Electronics Co., Ltd., Korea University Research and Business Foundation
    Inventors: Sechung Oh, Kyung Jin Lee, Jangeun Lee, Hong Ju Suh
  • Publication number: 20100277976
    Abstract: A magnetic memory device may include a tunnel barrier, a reference layer on a first side of the tunnel barrier, and a free layer on a second side of the tunnel barrier so that the tunnel barrier is between the reference and free layers. The free layer may include a first magnetic layer adjacent the tunnel barrier, a nonmagnetic layer on the first magnetic layer, and a second magnetic layer on the nonmagnetic layer. More particularly, the nonmagnetic layer may be between the first and second magnetic layers, and the first magnetic layer may be between the tunnel barrier and the second magnetic layer. A product of a saturated magnetization of the first magnetic layer and a thickness of the first magnetic layer may be less than a product of a saturated magnetization of the second magnetic layer and a thickness of the second magnetic layer. Related methods are also discussed.
    Type: Application
    Filed: April 28, 2010
    Publication date: November 4, 2010
    Inventors: Sechung Oh, Kyung Jin Lee, Jangeun Lee, Hong Ju Suh