Patents by Inventor Se-Ho Lee

Se-Ho Lee 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: 11871569
    Abstract: A nonvolatile memory device according to an embodiment includes a substrate, a channel structure extending in a direction perpendicular to the substrate; a charge storage structure disposed to be in contact with the channel structure; and a cell electrode structure disposed to be in contact with the charge storage structure in a lateral direction, wherein the channel structure comprises a hole conduction layer and an electron conduction layer.
    Type: Grant
    Filed: September 24, 2021
    Date of Patent: January 9, 2024
    Assignee: SK hynix Inc.
    Inventors: Hyangkeun Yoo, Ju Ry Song, Se Ho Lee, Jae Gil Lee
  • Publication number: 20240000323
    Abstract: The present disclosure relates to a real-time blood pressure monitoring system based on photoplethysmography (PPG) using convolutional?bidirectional long short-term memory (LSTM) recurrent neural networks and a real-time blood pressure monitoring method using the same. According to the present disclosure, there is provided the real-time blood pressure monitoring system based on PPG using convolutional?bidirectional LSTM recurrent neural networks, including a pulse wave measurement module configured to measure the PPG, and a blood pressure estimation server configured to receive the measured PPG from the pulse wave measurement module and estimate a blood pressure via the recurrent neural networks.
    Type: Application
    Filed: September 29, 2021
    Publication date: January 4, 2024
    Applicant: Korea University Research and Business Foundation
    Inventors: Dong-Joo KIM, Dong-Kyu KIM, Young Tak KIM, Se Ho LEE
  • Patent number: 11825660
    Abstract: A semiconductor device is provided. The semiconductor device includes a substrate, an electrode stack disposed on the substrate, the electrode stack including an interlayer insulation layer and a gate electrode structure that are alternately stacked in a direction perpendicular to the substrate, a trench penetrating the electrode stack to expose sidewall surfaces of the interlayer insulation layer and the gate electrode structure, a gate dielectric layer disposed along a sidewall surface of the trench, the gate dielectric layer including a ferroelectric portion and a non-ferroelectric portion, and a channel layer disposed to adjacent to the gate dielectric layer. The ferroelectric portion is in contact with the gate electrode structure, and the non-ferroelectric portion is in contact with the interlayer insulation layer.
    Type: Grant
    Filed: December 22, 2021
    Date of Patent: November 21, 2023
    Assignee: SK HYNIX INC.
    Inventors: Hyangkeun Yoo, Jae Gil Lee, Se Ho Lee
  • Publication number: 20230359393
    Abstract: A memory system includes a non-volatile memory device and a performance manager. The performance manager activates a plurality of sub-controllers according to a setting of a host device, allocates memory regions respectively to the plurality of sub-controllers, the memory regions being included in the non-volatile memory device, and determines, according to maximum performance values and a size ratio of the memory regions, credit sets to be allocated respectively to the plurality of sub-controllers.
    Type: Application
    Filed: December 20, 2022
    Publication date: November 9, 2023
    Applicant: SK hynix Inc.
    Inventors: Se Ho LEE, Min Gu KANG
  • Patent number: 11812618
    Abstract: A nonvolatile memory device according to an aspect of the present disclosure includes a substrate having a channel layer, a gate dielectric layer structure disposed on the channel layer, a ferroelectric layer disposed on the gate dielectric layer structure, and a gate electrode layer disposed on the ferroelectric layer. The gate dielectric layer structure has a positive capacitance. The ferroelectric layer has a negative capacitance. The gate dielectric layer structure includes a charge tunneling layer, a charge trap layer and a charge barrier layer disposed on the channel layer.
    Type: Grant
    Filed: July 25, 2022
    Date of Patent: November 7, 2023
    Assignee: SK hynix Inc.
    Inventors: Jae Gil Lee, Hyangkeun Yoo, Se Ho Lee
  • Patent number: 11800719
    Abstract: A nonvolatile memory device according to an embodiment includes a substrate having an upper surface, a source electrode structure disposed on the substrate, and a channel structure disposed over the substrate and disposed to contact one sidewall surface of the source electrode structure. In addition, the nonvolatile memory device includes a drain electrode structure disposed to contact one sidewall surface of the channel structure over the substrate. In addition, the nonvolatile memory device includes a plurality of ferroelectric structures extending in a first direction perpendicular to the substrate in the channel structure and disposed to be spaced apart from each other along the second direction perpendicular to the first direction. In addition, the nonvolatile memory device includes a gate electrode structure disposed in each of the plurality of ferroelectric structure to extend along the first direction.
    Type: Grant
    Filed: May 19, 2022
    Date of Patent: October 24, 2023
    Assignee: SK HYNIX INC.
    Inventors: Jae Hyun Han, Se Ho Lee, Hyangkeun Yoo, Jae Gil Lee
  • Patent number: 11792995
    Abstract: A semiconductor device according to an embodiment includes a substrate, a bit line structure and a source line structure respectively extending in a direction perpendicular to a surface of the substrate, a semiconductor layer disposed between the bit line structure and the source line structure on a plane parallel to the surface of the substrate, a first ferroelectric layer disposed on a first surface of the semiconductor layer, and a first gate electrode layer disposed on the first ferroelectric layer.
    Type: Grant
    Filed: May 11, 2021
    Date of Patent: October 17, 2023
    Assignee: SK hynix Inc.
    Inventors: Jae Gil Lee, Dong Ik Suh, Se Ho Lee
  • Patent number: 11764291
    Abstract: In a method of fabricating a nonvolatile memory device according an embodiment, a first tunnel oxide layer, a nitrogen supply layer, and a second tunnel oxide layer having a density lower than that of the first tunnel oxide layer are formed on a substrate. Nitrogen in the nitrogen supply layer is diffused into the second tunnel oxide layer to convert at least a portion of the second tunnel oxide layer into an oxynitride layer.
    Type: Grant
    Filed: August 1, 2022
    Date of Patent: September 19, 2023
    Assignee: SK hynix Inc.
    Inventors: Bo Yun Kim, Se Ho Lee
  • Patent number: 11729998
    Abstract: An electronic device including a semiconductor memory is provided. The semiconductor memory includes: a substrate having a substantially horizontal upper surface; first to Nth layers (where N is a natural number of two or more) disposed in horizontal layers on the substrate and spaced apart from each other above the substrate in a vertical direction, wherein each of the first to Nth layers includes a plurality of conductive lines; an insulating layer disposed to fill spaces between the conductive lines; a hole having sidewalls that extends in the vertical direction through the conductive lines of the first to Nth layers and the insulating layer therebetween; a variable resistance layer disposed on the sidewalls of the hole; and a conductive pillar disposed to fill the hole in which the variable resistance layer is formed.
    Type: Grant
    Filed: October 12, 2021
    Date of Patent: August 15, 2023
    Assignee: SK hynix Inc.
    Inventors: Jae-Hyun Han, Hyang-Keun Yoo, Se-Ho Lee
  • Patent number: 11664413
    Abstract: A semiconductor device may include: a first electrode; a second electrode; and a multilayer stack that is interposed between the first electrode and the second electrode and includes a seed layer and a high-k dielectric layer, wherein each of the seed layer and the high-k dielectric layer may have a rocksalt crystal structure, and wherein the high-k dielectric layer may exhibit a dielectric constant (k) of fifty (50) or higher.
    Type: Grant
    Filed: January 6, 2021
    Date of Patent: May 30, 2023
    Assignee: SK hynix Inc.
    Inventors: Dong Ik Suh, Se Ho Lee
  • Publication number: 20230127195
    Abstract: A display device according to some embodiments includes: a substrate; a plurality of common voltage lines positioned on the substrate; a plurality of connection electrodes positioned on a plurality of common voltage lines; an emission layer positioned on the connection electrode; and a common electrode positioned on the emission layer, wherein the emission layer has a plurality of first openings positioned on at least a portion of a plurality of connection electrodes, the common electrode is electrically connected to the connection electrode through a plurality of first openings, and a pitch of a first direction of a plurality of first openings has a range of about 0.1 mm to about 2.5 mm.
    Type: Application
    Filed: August 11, 2022
    Publication date: April 27, 2023
    Inventors: Se Ho LEE, Jang Kyu KIM, Tae Hyung KIM, Yong Dae LEE, Ho-Jun LEE
  • Publication number: 20230098622
    Abstract: A semiconductor device includes a first electrode, a ferroelectric layer disposed on the first electrode and implementing a negative capacitance, a dielectric structure disposed on the ferroelectric layer and including a first dielectric layer and a second dielectric layer that are alternately stacked, and a second electrode disposed on the dielectric structure. The ferroelectric layer and the dielectric structure are configured to be electrically connected in series to each other. The ferroelectric layer and dielectric structure together have a non-ferroelectric property.
    Type: Application
    Filed: May 19, 2022
    Publication date: March 30, 2023
    Inventors: Won Tae KOO, Dong Ik SUH, Se Ho LEE
  • Publication number: 20220399371
    Abstract: A nonvolatile memory device includes a substrate having an upper surface, and a gate structure disposed over the substrate. The gate structure includes at least one gate electrode layer pattern and at least one gate insulation layer pattern, which are alternately stacked along a first direction perpendicular to the upper surface. The gate structure extends in a second direction perpendicular to the first direction. The nonvolatile memory device includes a ferroelectric layer disposed on at least a portion of one sidewall surface of the gate structure. The one sidewall surface of the gate structure forms a plane substantially parallel to the first and second directions. The nonvolatile memory device includes a channel layer disposed on the ferroelectric layer, and a source electrode structure and a drain electrode structure disposed to contact the channel layer and spaced apart from each other in the second direction.
    Type: Application
    Filed: August 22, 2022
    Publication date: December 15, 2022
    Inventors: Jae Hyun HAN, Jae Gil LEE, Hyangkeun YOO, Se Ho LEE
  • Publication number: 20220376092
    Abstract: In a method of fabricating a nonvolatile memory device according an embodiment, a first tunnel oxide layer, a nitrogen supply layer, and a second tunnel oxide layer having a density lower than that of the first tunnel oxide layer are formed on a substrate. Nitrogen in the nitrogen supply layer is diffused into the second tunnel oxide layer to convert at least a portion of the second tunnel oxide layer into an oxynitride layer.
    Type: Application
    Filed: August 1, 2022
    Publication date: November 24, 2022
    Inventors: Bo Yun KIM, Se Ho LEE
  • Publication number: 20220359543
    Abstract: A nonvolatile memory device according to an aspect of the present disclosure includes a substrate having a channel layer, a gate dielectric layer structure disposed on the channel layer, a ferroelectric layer disposed on the gate dielectric layer structure, and a gate electrode layer disposed on the ferroelectric layer. The gate dielectric layer structure has a positive capacitance. The ferroelectric layer has a negative capacitance. The gate dielectric layer structure includes a charge tunneling layer, a charge trap layer and a charge barrier layer disposed on the channel layer.
    Type: Application
    Filed: July 25, 2022
    Publication date: November 10, 2022
    Inventors: Jae Gil LEE, Hyangkeun Yoo, Se Ho Lee
  • Patent number: 11482667
    Abstract: A nonvolatile memory device according to an embodiment includes a substrate, a resistance change layer disposed over the substrate, a gate insulation layer disposed on the resistance change layer, a gate electrode layer disposed on the gate insulation layer, and a first electrode pattern layer and a second electrode pattern layer that are disposed respectively over the substrate and disposed to contact a different portion of the resistance change layer.
    Type: Grant
    Filed: June 18, 2020
    Date of Patent: October 25, 2022
    Inventors: Jae Hyun Han, Hyangkeun Yoo, Se Ho Lee
  • Publication number: 20220336497
    Abstract: A semiconductor device according to an embodiment of the present disclosure includes a substrate, a gate structure disposed over the substrate, a dielectric structure disposed to contact a sidewall surface of the gate structure over the substrate, and a channel layer disposed on a sidewall surface of the dielectric structure over the substrate. The gate structure includes a gate electrode layer and an interlayer insulation structure which are alternately stacked. The interlayer insulation structure includes a metal-organic framework layer.
    Type: Application
    Filed: September 10, 2021
    Publication date: October 20, 2022
    Applicant: SK hynix Inc.
    Inventors: Won Tae KOO, Jae Hyun HAN, Se Ho LEE
  • Patent number: 11469272
    Abstract: A nonvolatile memory device according to an embodiment includes a substrate, a gate electrode structure disposed on the substrate, a gate dielectric layer covering at least a portion of a sidewall surface of the gate electrode structure on the substrate, a channel layer and a resistance change structure that are sequentially disposed on the gate dielectric layer, and a plurality of bit line structures disposed inside the resistance change structure.
    Type: Grant
    Filed: April 9, 2020
    Date of Patent: October 11, 2022
    Assignee: SK hynix Inc.
    Inventors: Jae Hyun Han, Hyangkeun Yoo, Se Ho Lee
  • Patent number: 11456318
    Abstract: A nonvolatile memory device according to an embodiment includes a substrate having an upper surface, and a gate structure disposed over the substrate. The gate structure includes at least one gate electrode layer pattern and at least one gate insulation layer pattern, which are alternately stacked along a first direction perpendicular to the upper surface. The gate structure extends in a second direction perpendicular to the first direction. The nonvolatile memory device includes a ferroelectric layer disposed on at least a portion of one sidewall surface of the gate structure. The one sidewall surface of the gate structure forms a plane substantially parallel to the first and second directions. The nonvolatile memory device includes a channel layer disposed on the ferroelectric layer, and a source electrode structure and a drain electrode structure disposed to contact the channel layer and spaced apart from each other in the second direction.
    Type: Grant
    Filed: June 3, 2020
    Date of Patent: September 27, 2022
    Assignee: SK hynix Inc.
    Inventors: Jae Hyun Han, Jae Gil Lee, Hyangkeun Yoo, Se Ho Lee
  • Publication number: 20220300205
    Abstract: Disclosed are a controller that controls a memory device, and an operating method of the controller. The controller may include a host interface suitable for fetching a write command received from a host; and a processor suitable for controlling a write operation of the memory device in response to the fetched write command, wherein, when a workload of a background operation of the processor is greater than a workload of a host write operation, the host interface is further suitable for: determining a delay amount of time and providing the host with a completion response to the write command after delaying the completion response by the delay amount of time.
    Type: Application
    Filed: August 30, 2021
    Publication date: September 22, 2022
    Inventor: Se Ho LEE