Patents by Inventor Seok-Pyo Song

Seok-Pyo Song 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: 10403345
    Abstract: An electronic device including a semiconductor memory. The semiconductor memory includes a bit line; a source line; a plurality of resistive memory cells among which a selected memory cell forms a current path between the bit line and the source line; a read current supply unit configured to supply read current to the bit line in a read operation; a sense amplifier configured to generate read data in response to a voltage level of the bit line in the read operation; and a variable switch element configured to flow current from the source line to a ground terminal in the read operation, and be decreased in its resistance value as a voltage level of the source line is high.
    Type: Grant
    Filed: February 12, 2018
    Date of Patent: September 3, 2019
    Assignee: SK hynix Inc.
    Inventors: Jae-Yun Yi, Sung-Woong Chung, Seok-Pyo Song
  • 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: 20180166114
    Abstract: An electronic device including a semiconductor memory. The semiconductor memory includes a bit line; a source line; a plurality of resistive memory cells among which a selected memory cell forms a current path between the bit line and the source line; a read current supply unit configured to supply read current to the bit line in a read operation; a sense amplifier configured to generate read data in response to a voltage level of the bit line in the read operation; and a variable switch element configured to flow current from the source line to a ground terminal in the read operation, and be decreased in its resistance value as a voltage level of the source line is high.
    Type: Application
    Filed: February 12, 2018
    Publication date: June 14, 2018
    Inventors: Jae-Yun Yi, Sung-Woong Chung, Seok-Pyo Song
  • 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: 9892774
    Abstract: An electronic device including a semiconductor memory. The semiconductor memory includes a bit line; a source line; a plurality of resistive memory cells among which a selected memory cell forms a current path between the bit line and the source line; a read current supply unit configured to supply read current to the bit line in a read operation; a sense amplifier configured to generate read data in response to a voltage level of the bit line in the read operation; and a variable switch element configured to flow current from the source line to a ground terminal in the read operation, and be decreased in its resistance value as a voltage level of the source line is high.
    Type: Grant
    Filed: August 8, 2016
    Date of Patent: February 13, 2018
    Assignee: SK hynix Inc.
    Inventors: Jae-Yun Yi, Sung-Woong Chung, Seok-Pyo Song
  • Patent number: 9660041
    Abstract: Devices and methods based on disclosed technology include, among others, an electronic device capable of improving a signal transfer characteristic and a method for fabricating the same. Specifically, an electronic device in one implementation includes a plurality of buried gates formed in a substrate, open parts formed in the substrate on both sides of the buried gate, isolation layers each formed between a sidewall of the open part and a sidewall of the buried gate, source/drain regions formed in the substrate under the respective open parts, and contact plugs buried in the respective open parts.
    Type: Grant
    Filed: August 7, 2015
    Date of Patent: May 23, 2017
    Assignee: SK hynix Inc.
    Inventors: Seok-Pyo Song, Jae-Yun Yi, Se-Dong Kim
  • Patent number: 9570511
    Abstract: Electronic devices having semiconductor elements and methods for fabricating such devices including, a method for fabricating an electronic device including a semiconductor memory, which includes: forming a sacrificial layer on a substrate including a first region and a second region; selectively etching the sacrificial layer and the substrate of the first region to form a trench; forming a first gate that fills a part of the trench in the first region; forming a gate protection layer on the first gate to fill the remaining part of the trench; removing the sacrificial layer of the first region to form a grooved portion surrounded by the gate protection layer; forming a conductive plug to cover the grooved portion; removing the sacrificial layer of the second region; and forming a second gate on the substrate of the second region.
    Type: Grant
    Filed: April 30, 2016
    Date of Patent: February 14, 2017
    Assignee: SK hynix Inc.
    Inventors: Seok-Pyo Song, Sung-Woong Chung, Jong-Han Shin
  • Patent number: 9564584
    Abstract: An electronic device includes a semiconductor device that includes: a substrate including a switching element having a buried gate electrode; a buried decoupling capacitor having a line width same as a line width of the buried gate electrode; and a variable resistance element, electrically coupled to the switching element, formed over the substrate.
    Type: Grant
    Filed: March 18, 2016
    Date of Patent: February 7, 2017
    Assignee: SK hynix Inc.
    Inventors: Joon-Seop Sim, Seok-Pyo Song, Jae-Yun Yi
  • Patent number: 9520187
    Abstract: This patent document relates to memory circuits or devices and their applications in electronic devices or systems. The disclosed technology in this patent document includes memory circuits or devices and their applications in electronic devices or systems and various implementations of an electronic device in which an electronic device capable of reducing an area, improving device characteristics due to a reduction in the resistance of a switching transistor, simplifying the process, and reducing a cost is provided. In accordance with the electronic device of this patent document, an area can be reduced, device characteristics can be improved due to a reduction in the resistance of the switching transistor, the process can be simplified, and a cost can be reduced.
    Type: Grant
    Filed: September 28, 2015
    Date of Patent: December 13, 2016
    Assignee: SK hynix Inc.
    Inventors: Jae-Yun Yi, Sung-Woong Chung, Seok-Pyo Song
  • Publication number: 20160351241
    Abstract: An electronic device including a semiconductor memory. The semiconductor memory includes a bit line; a source line; a plurality of resistive memory cells among which a selected memory cell forms a current path between the bit line and the source line; a read current supply unit configured to supply read current to the bit line in a read operation; a sense amplifier configured to generate read data in response to a voltage level of the bit line in the read operation; and a variable switch element configured to flow current from the source line to a ground terminal in the read operation, and be decreased in its resistance value as a voltage level of the source line is high.
    Type: Application
    Filed: August 8, 2016
    Publication date: December 1, 2016
    Inventors: Jae-Yun Yi, Sung-Woong Chung, Seok-Pyo Song
  • Patent number: 9437270
    Abstract: A nonvolatile memory apparatus includes: a memory cell coupled to a bit line and a source line; a word line configured to select the memory cell; and a local switch block configured to apply a write voltage, a read voltage, and a source line voltage to the bit line and the source line in response to a local switch select signal. In a write or read operation of the nonvolatile memory apparatus, the word line has a first voltage level, and the local switch select signal has a second voltage level higher than the first voltage level.
    Type: Grant
    Filed: August 28, 2013
    Date of Patent: September 6, 2016
    Assignee: SK HYNIX INC.
    Inventors: Jae Yun Yi, Seok Pyo Song
  • Publication number: 20160247856
    Abstract: Electronic devices having semiconductor elements and methods for fabricating such devices including, a method for fabricating an electronic device including a semiconductor memory, which includes: forming a sacrificial layer on a substrate including a first region and a second region; selectively etching the sacrificial layer and the substrate of the first region to form a trench; forming a first gate that fills a part of the trench in the first region; forming a gate protection layer on the first gate to fill the remaining part of the trench; removing the sacrificial layer of the first region to form a grooved portion surrounded by the gate protection layer; forming a conductive plug to cover the grooved portion; removing the sacrificial layer of the second region; and forming a second gate on the substrate of the second region.
    Type: Application
    Filed: April 30, 2016
    Publication date: August 25, 2016
    Inventors: Seok-Pyo Song, Sung-Woong Chung, Jong-Han Shin
  • Patent number: 9412444
    Abstract: An electronic device including a semiconductor memory. The semiconductor memory includes a bit line; a source line; a plurality of resistive memory cells among which a selected memory cell forms a current path between the bit line and the source line; a read current supply unit configured to supply read current to the bit line in a read operation; a sense amplifier configured to generate read data in response to a voltage level of the bit line in the read operation; and a variable switch element configured to flow current from the source line to a ground terminal in the read operation, and be decreased in its resistance value as a voltage level of the source line is high.
    Type: Grant
    Filed: May 13, 2014
    Date of Patent: August 9, 2016
    Assignee: SK hynix Inc.
    Inventors: Jae-Yun Yi, Sung-Woong Chung, Seok-Pyo Song
  • Publication number: 20160225984
    Abstract: An electronic device includes a semiconductor device that includes: a substrate including a switching element having a buried gate electrode; a buried decoupling capacitor having a line width same as a line width of the buried gate electrode; and a variable resistance element, electrically coupled to the switching element, formed over the substrate.
    Type: Application
    Filed: March 18, 2016
    Publication date: August 4, 2016
    Inventors: Joon-Seop Sim, Seok-Pyo Song, Jae-Yun Yi
  • Patent number: 9406380
    Abstract: Provided is an electronic device including a semiconductor memory unit. The semiconductor memory unit may include: a storage cell comprising a variable resistance element; a first selecting element coupled to one end of the storage cell and having a threshold voltage set to a first voltage; and a second selecting element coupled to the other end of the storage cell and having a threshold voltage set to a second voltage higher than the first voltage.
    Type: Grant
    Filed: July 28, 2014
    Date of Patent: August 2, 2016
    Assignee: SK hynix Inc.
    Inventors: Jae-Yun Yi, Sung-Woong Chung, Seok-Pyo Song
  • Patent number: 9331267
    Abstract: Electronic devices having semiconductor elements and methods for fabricating such devices including, a method for fabricating an electronic device including a semiconductor memory, which includes: forming a sacrificial layer on a substrate including a first region and a second region; selectively etching the sacrificial layer and the substrate of the first region to form a trench; forming a first gate that fills a part of the trench in the first region; forming a gate protection layer on the first gate to fill the remaining part of the trench; removing the sacrificial layer of the first region to form a grooved portion surrounded by the gate protection layer; forming a conductive plug to cover the grooved portion; removing the sacrificial layer of the second region; and forming a second gate on the substrate of the second region.
    Type: Grant
    Filed: February 24, 2014
    Date of Patent: May 3, 2016
    Assignee: SK hynix Inc.
    Inventors: Seok-Pyo Song, Sung-Woong Chung, Jong-Han Shin
  • 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: 9293507
    Abstract: An electronic device includes a semiconductor device that includes: a substrate including a switching element having a buried gate electrode; a buried decoupling capacitor having a line width same as a line width of the buried gate electrode; and a variable resistance element, electrically coupled to the switching element, formed over the substrate.
    Type: Grant
    Filed: July 2, 2014
    Date of Patent: March 22, 2016
    Assignee: SK hynix Inc.
    Inventors: Joon-Seop Sim, Seok-Pyo Song, Jae-Yun Yi
  • Publication number: 20160019956
    Abstract: This patent document relates to memory circuits or devices and their applications in electronic devices or systems. The disclosed technology in this patent document includes memory circuits or devices and their applications in electronic devices or systems and various implementations of an electronic device in which an electronic device capable of reducing an area, improving device characteristics due to a reduction in the resistance of a switching transistor, simplifying the process, and reducing a cost is provided. In accordance with the electronic device of this patent document, an area can be reduced, device characteristics can be improved due to a reduction in the resistance of the switching transistor, the process can be simplified, and a cost can be reduced.
    Type: Application
    Filed: September 28, 2015
    Publication date: January 21, 2016
    Inventors: Jae-Yun Yi, Sung-Woong Chung, Seok-Pyo Song