Patents by Inventor Nam-Jae Lee

Nam-Jae 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: 11832445
    Abstract: A semiconductor device and a manufacturing method of the semiconductor device are provided. The semiconductor device includes a stacked structure including a plurality of conductive patterns and a plurality of insulating patterns alternately stacked on each other, a cell plug passing through the stacked structure, a select plug coupled to the cell plug, and a select pattern surrounding the select plug, wherein the select pattern includes a first conductive portion and a second conductive portion covering a sidewall and a top surface of the first conductive portion, and wherein the conductive patterns, the first conductive portion, and the second conductive portion include different materials.
    Type: Grant
    Filed: March 22, 2021
    Date of Patent: November 28, 2023
    Assignee: SK hynix Inc.
    Inventor: Nam Jae Lee
  • Patent number: 11830879
    Abstract: A method for fabricating a vertical memory device includes: forming a memory cell array that includes a vertical thyristor and a word line over a first substrate; forming a peripheral circuit unit in a second substrate; bonding the memory cell array with the peripheral circuit unit; removing the first substrate to expose one side of the vertical thyristor; and forming a bit line that is coupled to the one side of the vertical thyristor and the peripheral circuit unit.
    Type: Grant
    Filed: April 7, 2021
    Date of Patent: November 28, 2023
    Assignee: SK hynix Inc.
    Inventor: Nam-Jae Lee
  • Patent number: 11812615
    Abstract: There are provided a semiconductor memory device and a manufacturing method thereof. The semiconductor memory device includes: a cell stack structure surrounding a first channel structure and a second channel structure; a first source select line overlapping with a first region of the cell stack structure and surrounding the first channel structure; and a second source select line overlapping with a second region of the cell stack structure and surrounding the second channel structure. Each of the first source select line and the second source select line includes a first select gate layer overlapping with the cell stack structure, a second select gate layer disposed between the first select gate layer and the cell stack structure, and a third select gate layer disposed between the first select gate layer and the second select gate layer.
    Type: Grant
    Filed: July 1, 2022
    Date of Patent: November 7, 2023
    Assignee: SK hynix Inc.
    Inventor: Nam Jae Lee
  • Patent number: 11804437
    Abstract: A semiconductor device according to an embodiment of the present disclosure may include: a stack structure including a plurality of first conductive patterns and a plurality of dielectric layers, which are alternately stacked, the stack structure having a stepped structure such that any one of the first conductive patterns further protrudes than the first conductive pattern positioned immediately above it; a plurality of second conductive patterns which are respectively formed over protrusions of the first conductive patterns; a plurality of contact plugs which overlap the plurality of second conductive patterns, respectively, and pass through the overlapping second conductive patterns and the stack structure; and a sealing layer pattern which is interposed between the first conductive patterns and the contact plugs and separates the first conductive patterns from the contact plugs.
    Type: Grant
    Filed: December 28, 2021
    Date of Patent: October 31, 2023
    Assignee: SK hynix Inc.
    Inventors: Nam-Kuk Kim, Nam-Jae Lee
  • Patent number: 11804429
    Abstract: There are provided a semiconductor memory device and an erasing method of the semiconductor memory device. The semiconductor memory device includes: a plurality of word lines stacked between a source conductive pattern and a bit line; at least two drain select lines disposed between the plurality word lines and the bit line, the at least two drain select lines being spaced apart from each other in an extending direction of the bit line; and an erase control line disposed between the at least two drain select lines and the plurality of word lines.
    Type: Grant
    Filed: December 16, 2022
    Date of Patent: October 31, 2023
    Assignee: SK hynix Inc.
    Inventor: Nam Jae Lee
  • Publication number: 20230343388
    Abstract: There are provided a semiconductor memory device and a manufacturing method thereof. The semiconductor memory device includes: a source layer; a channel structure extending in a first direction from within the source layer; a source-channel contact layer surrounding the channel structure on the source layer; a first select gate layer overlapping with the source-channel contact layer and surrounding the channel structure; a stack including interlayer insulating layers and conductive patterns that are alternately stacked in the first direction and surrounding the channel structure, the stack overlapping with the first select gate layer; and a first insulating pattern that is formed thicker between the first select gate layer and the channel structure than between the stack and the channel structure.
    Type: Application
    Filed: June 23, 2023
    Publication date: October 26, 2023
    Applicant: SK hynix Inc.
    Inventor: Nam Jae LEE
  • Publication number: 20230326891
    Abstract: The present disclosure provides a semiconductor memory device. The semiconductor memory device includes a peripheral circuit structure on a semiconductor substrate, a conductive line connected to the peripheral circuit structure, a peripheral circuit side bonding conductive pattern connected to the conductive line, a peripheral circuit side auxiliary bonding conductive pattern spaced apart from the peripheral circuit side bonding conductive pattern, a cell array side bonding conductive pattern contacting the peripheral circuit side bonding conductive pattern, a cell array side auxiliary bonding conductive pattern contacting the peripheral circuit side auxiliary bonding conductive pattern, and a memory cell array connected to the cell array side bonding conductive pattern.
    Type: Application
    Filed: September 23, 2022
    Publication date: October 12, 2023
    Applicant: SK hynix Inc.
    Inventors: Yu Jin PARK, Nam Jae LEE, Eun Seok CHOI
  • Patent number: 11783892
    Abstract: A semiconductor memory device includes a substrate including a logic circuit, a memory cell array disposed over the substrate, a first conductive group including a plurality of bit lines and a first upper source line that are coupled to the memory cell array and spaced apart from each other and a first upper wire that is coupled to the logic circuit, an insulating structure covering the first conductive group.
    Type: Grant
    Filed: December 22, 2021
    Date of Patent: October 10, 2023
    Assignee: SK hynix Inc.
    Inventor: Nam Jae Lee
  • Patent number: 11784178
    Abstract: A semiconductor device includes: a substrate extending in a first direction and a second direction intersecting with the first direction; a plurality of input/output pads disposed at one side of the substrate; a first circuit adjacent to the input/output pads in the first direction; a second circuit disposed to be spaced farther apart from the input/output pads in the first direction than the first circuit; a first memory cell array overlapping the first circuit; a second memory cell array overlapping the second circuit; first metal source patterns overlapping the first memory cell array and being spaced apart from each other in the second direction; and a second metal source pattern overlapping the second memory cell array and formed to have a width wider than a width of each of the first metal source patterns in the second direction.
    Type: Grant
    Filed: June 6, 2022
    Date of Patent: October 10, 2023
    Assignee: SK hynix Inc.
    Inventor: Nam Jae Lee
  • Publication number: 20230317816
    Abstract: Provided herein may be a semiconductor memory device and a method of manufacturing the semiconductor memory device. The semiconductor memory device includes a stacked body including interlayer insulating layers and a select line disposed between the interlayer insulating layers, a core insulating layer penetrating the stacked body, a semiconductor pattern extending along a sidewall of the core insulating layer and including an undoped area disposed between the select line and the core insulating layer, doped semiconductor patterns disposed between the semiconductor pattern and the interlayer insulating layers, and a gate insulating layer disposed between the semiconductor pattern and the select line.
    Type: Application
    Filed: June 6, 2023
    Publication date: October 5, 2023
    Applicant: SK hynix Inc.
    Inventor: Nam Jae LEE
  • Patent number: 11778831
    Abstract: A method of manufacturing a semiconductor memory device includes: forming a preliminary memory cell array on a support structure, the preliminary memory cell array with a stack structure and cell pillars; removing the support structure to expose a portion of each of the cell pillars; forming a protective layer that covers the exposed portion of each of the cell pillars; forming a mask pattern that exposes an opening defined between inclined surfaces of the protective layer wherein the inclined surfaces are disposed between the cell pillars; and etching at least one conductive layer among the conductive layers that is adjacent to the opening, thereby isolating the at least one conductive layer into select lines.
    Type: Grant
    Filed: April 6, 2021
    Date of Patent: October 3, 2023
    Assignee: SK hynix Inc.
    Inventor: Nam Jae Lee
  • Patent number: 11769721
    Abstract: A semiconductor memory device, and a method of manufacturing the same, includes: a gate stack structure including interlayer insulating layers and conductive patterns stacked in a first direction; a channel structure penetrating the gate stack structure; a peripheral contact plug spaced apart from the gate stack structure on a plane intersecting the channel structure, the peripheral contact plug extending in the first direction; and a capacitor spaced apart from the gate stack structure and the peripheral contact plug on the plane, the capacitor having an area wider than an area of the peripheral contact plug.
    Type: Grant
    Filed: March 4, 2022
    Date of Patent: September 26, 2023
    Assignee: SK hynix Inc.
    Inventor: Nam Jae Lee
  • Publication number: 20230298992
    Abstract: There are provided a semiconductor memory device and a manufacturing method of the semiconductor memory device. A semiconductor memory device includes a lower stack structure on the substrate and including a plurality of lower layers stacked in a vertical direction, an intermediate stack structure on the lower stack structure and including a plurality of intermediate layers stacked in the vertical direction, a plurality of grooves in the contact region and penetrating the intermediate stack structure, the plurality of grooves exposing the lower stack structure at different depths, and a plurality of steps formed along sidewalls of the grooves.
    Type: Application
    Filed: May 19, 2023
    Publication date: September 21, 2023
    Applicant: SK hynix Inc.
    Inventors: Jin Won LEE, Nam Jae LEE
  • Patent number: 11765896
    Abstract: There are provided a semiconductor device and a manufacturing method thereof. The semiconductor device includes: a stack structure; a source structure; a channel structure penetrating the stack structure, the channel structure being connected to the source structure; and a first memory layer interposed between the channel structure and the stack structure. The source structure includes a first protrusion part protruding between the first memory layer and the channel structure.
    Type: Grant
    Filed: July 20, 2020
    Date of Patent: September 19, 2023
    Assignee: SK hynix Inc.
    Inventor: Nam Jae Lee
  • Patent number: 11758725
    Abstract: A memory device and a respective manufacturing method are set forth, wherein the memory device includes: a peripheral circuit layer including a plurality of conductive pads; a bonding structure disposed on the peripheral circuit layer; a cell stack structure disposed on the bonding structure, the cell stack structure including a plurality of gate conductive patterns; and a plurality of vertical gate contact structures respectively connecting the plurality of conductive pads and the plurality of gate conductive patterns while penetrating the bonding structure, wherein each of the plurality of gate conductive patterns includes a first horizontal part and a second horizontal part, which extend horizontally from a cell region to a contact region, and a third horizontal part connected to one end of the first horizontal part and one end of the second horizontal part, the third horizontal part being connected to a corresponding gate contact structure.
    Type: Grant
    Filed: March 17, 2021
    Date of Patent: September 12, 2023
    Assignee: SK hynix Inc.
    Inventor: Nam Jae Lee
  • Patent number: 11749635
    Abstract: A semiconductor device includes a first insulating layer, wire contacts spaced apart from each other by the first insulating layer, and a bonding wire connected to the wire contacts. Each of the wire contacts includes a base part in the first insulating layer and a protrusion part protruding from inside to outside the first insulating layer. The protrusion parts of the wire contacts are in contact with the bonding wire.
    Type: Grant
    Filed: April 28, 2021
    Date of Patent: September 5, 2023
    Assignee: SK hynix Inc.
    Inventor: Nam Jae Lee
  • Patent number: 11751390
    Abstract: A method of manufacturing a semiconductor device includes: forming a first patterned stack structure including a cell region, a first portion in a first contact region, and a second portion in a second contact region, the second portion of the first patterned stack structure including a first opening; forming a second patterned stack structure including a third portion over the cell region and the second contact region of the first patterned stack structure; forming a second opening penetrating the third portion of the second patterned stack structure, the second opening being coupled to the first opening; and forming a third opening penetrating the first portion of the first patterned stack structure when the second opening is formed.
    Type: Grant
    Filed: July 12, 2021
    Date of Patent: September 5, 2023
    Assignee: SK hynix Inc.
    Inventor: Nam Jae Lee
  • Patent number: 11751376
    Abstract: There are provided a semiconductor memory device and a manufacturing method thereof. The semiconductor memory device includes: a first etch stop layer; a source layer on the first etch stop layer; a second etch stop layer on the source layer; a stack structure on the second etch stop layer; and a channel structure penetrating the first and second etch stop layers, the source layer, and the stack structure, the channel structure being electrically connected to the source layer. A material of each of the first and second etch stop layers has an etch selectivity with respect to a material of the source layer.
    Type: Grant
    Filed: November 16, 2021
    Date of Patent: September 5, 2023
    Assignee: SK hynix Inc.
    Inventor: Nam Jae Lee
  • Patent number: 11735500
    Abstract: The present disclosure includes a semiconductor device and a method of manufacturing the same. The semiconductor device includes a substrate including a first area and a second area, a vertical insulating film passing through the substrate between the first area of the substrate and the second area of the substrate, an interlayer insulating structure disposed on the substrate, and a conductive pad formed on the interlayer insulating structure and overlapping the first area of the substrate. The semiconductor device also includes a through electrode passing through the conductive pad, the interlayer insulating structure, and the substrate in the first area.
    Type: Grant
    Filed: March 28, 2022
    Date of Patent: August 22, 2023
    Assignee: SK hynix Inc.
    Inventor: Nam Jae Lee
  • Publication number: 20230238437
    Abstract: A semiconductor device includes a stacked structure with first conductive layers and insulating layers that are stacked alternately with each other, second conductive layers located on the stacked structure, first openings passing through the second conductive layers and the stacked structure and having a first width, second conductive patterns formed in the first openings and located on the stacked structure to be electrically coupled to the second conductive layers, data storage patterns formed in the first openings and located under the second conductive patterns, and channel layers formed in the data storage patterns and the second conductive patterns.
    Type: Application
    Filed: March 31, 2023
    Publication date: July 27, 2023
    Applicant: SK hynix Inc.
    Inventor: Nam Jae LEE