Patents by Inventor Sung Lae OH

Sung Lae OH 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: 11374016
    Abstract: A semiconductor memory device includes: a plurality of page buffers disposed on a substrate; and a plurality of pads exposed to one surface of a dielectric layer covering the page buffers, and coupled to the respective page buffers. The substrate comprises a plurality of high voltage regions and a plurality of low voltage regions which are alternately disposed in a second direction crossing a first direction. Each of the plurality of page buffers comprises a sensing unit and a bit line select transistor coupled between the sensing unit and the one of the plurality of pads. The bit line select transistors of the plurality of page buffers are disposed in the plurality of high voltage regions, and the plurality of pads are distributed and disposed in a plurality of pad regions which correspond to the high voltage regions and are spaced apart from each other in the second direction.
    Type: Grant
    Filed: March 6, 2020
    Date of Patent: June 28, 2022
    Assignee: SK hynix Inc.
    Inventors: Sung Lae Oh, Dong Hyuk Kim, Tae Sung Park
  • Publication number: 20220195237
    Abstract: A resin composition according to an exemplary embodiment of the present disclosure includes a first polyol represented by Chemical Formula 1, a second polyol represented by Chemical Formula 2, and a polyisocyanate, wherein the first polyol and the second polyol have a linear structure without a side chain. each of Y1 to Y4 is H or OH—, at least one of Y1 and Y2 is OH—, at least one of Y3 and Y4 is OH—, each of X1 to X3 is independently a C1-C20 alkyl group, the alkyl group includes or does not include an unsaturated bond, —CH2— in the alkyl group may be substituted or unsubstituted with —CHOH—, and each of n and m is independently 1 to 200.
    Type: Application
    Filed: March 9, 2022
    Publication date: June 23, 2022
    Inventors: Sung KIM, Hyun Sook KIM, Sung-Chan JO, Kyung Lae RHO, Soo Im JEONG, Seung Kyu LEE, Jang Hwan JEONG, Jae Ho CHOI, Soon Jong KIM, Seong Gea KIM, Jae Duck JUNG, Dong Hyeok OH, Kyoung Seok CHO
  • Patent number: 11367504
    Abstract: A semiconductor memory device includes a plurality of planes defined in a plurality of chip regions; and a rescue circuit configured to disable a failed plane and enable a normal plane from among the plurality of planes, wherein the semiconductor memory device operates with only normal planes that are enabled.
    Type: Grant
    Filed: March 17, 2021
    Date of Patent: June 21, 2022
    Assignee: SK hynix Inc.
    Inventor: Sung Lae Oh
  • Patent number: 11342353
    Abstract: A semiconductor memory device includes an electrode structure including a plurality of electrode layers and a plurality of interlayer dielectric layers which are alternately stacked on a substrate defined with a plurality of cell areas and a plurality of coupling areas in a first direction; a hard mask pattern disposed on the electrode structure, and having a plurality of opening holes in the coupling areas; and a plurality of contact holes defined in the electrode structure under the plurality of opening holes, and exposing pad areas of the electrode layers, respectively. The plurality of opening holes are disposed by being distributed in a plurality of rows arranged in a second direction intersecting with the first direction.
    Type: Grant
    Filed: February 1, 2020
    Date of Patent: May 24, 2022
    Assignee: SK hynix Inc.
    Inventors: Sung Lae Oh, Jin Ho Kim, Sang Woo Park, Sang Hyun Sung, Soo Nam Jung, Chang Woon Choi
  • Publication number: 20220148672
    Abstract: A semiconductor memory device includes a plurality of planes defined in a plurality of chip regions; and a rescue circuit configured to disable a failed plane and enable a normal plane from among the plurality of planes, wherein the semiconductor memory device operates with only normal planes that are enabled.
    Type: Application
    Filed: March 17, 2021
    Publication date: May 12, 2022
    Inventor: Sung Lae OH
  • Publication number: 20220139895
    Abstract: A memory device includes a cell wafer having a first pad on one surface thereof; and a peripheral wafer bonded to the one surface of the cell wafer, and having a second pad coupled to the first pad. The cell wafer includes a memory cell array; first and second bit lines coupled to the memory cell array; and a bit line selection circuit configured to couple one of the first and second bit lines to the first pad. The peripheral wafer includes a page buffer low-voltage circuit including a first page buffer low-voltage unit corresponding to the first bit line and a second page buffer low-voltage unit corresponding to the second bit line; and a page buffer high-voltage circuit configured to couple one of the first and second page buffer low-voltage units to the second pad.
    Type: Application
    Filed: February 17, 2021
    Publication date: May 5, 2022
    Inventors: Je Hyun CHOI, Sung Lae OH, Soo Yeol CHAI
  • Publication number: 20220139449
    Abstract: A semiconductor device includes a first wafer including a row decoder region in which a plurality of pass transistors are arranged in a row direction and a column direction; a plurality of first bonding pads, respectively coupled to the plurality of pass transistors that are disposed in a plurality of rows on one surface of the first wafer in the row decoder region; and a plurality of second bonding pads disposed on the one surface of the first wafer in the row decoder region, wherein the plurality of second bonding pads are disposed in a different row from the plurality of first bonding pads and are offset in the row direction with respect to the plurality of first bonding pads.
    Type: Application
    Filed: February 9, 2021
    Publication date: May 5, 2022
    Inventors: Sang Hyun SUNG, Sung Lae OH, Je Hyun CHOI
  • Patent number: 11315639
    Abstract: A memory device includes a cell wafer including a memory cell array; a first logic wafer bonded to one surface of the cell wafer, and including a first logic circuit which controls the memory cell array; and a second logic wafer bonded to the other surface of the cell wafer which faces away from the one surface, and including a second logic circuit which controls the memory cell array.
    Type: Grant
    Filed: November 2, 2020
    Date of Patent: April 26, 2022
    Assignee: SK hynix Inc.
    Inventors: Sung Lae Oh, Sang Woo Park, Dong Hyuk Chae, Ki Soo Kim
  • Patent number: 11315895
    Abstract: A semiconductor memory device includes first column line pads, having a longer width and a shorter width, defined on one surface of a cell wafer, and coupled to a memory cell array of the cell wafer; second column line pads, having a longer width and a shorter width, defined on one surface of a peripheral wafer that is bonded to the one surface of the cell wafer, coupled to a page buffer circuit of the peripheral wafer, and bonded respectively to the first column line pads; first row line pads defined on the one surface of the cell wafer, and coupled to the memory cell array; and second row line pads defined on the one surface of the peripheral wafer, coupled to a row decoder of the peripheral wafer, and bonded respectively to the first row line pads. The longer widths of the first and second column line pads and the longer widths of the first and second row line pads extend in the same direction.
    Type: Grant
    Filed: September 8, 2020
    Date of Patent: April 26, 2022
    Assignee: SK hynix Inc.
    Inventor: Sung Lae Oh
  • Patent number: 11315935
    Abstract: A semiconductor memory device includes a stack disposed over a first substrate; an etch barrier including a plurality of dummy channels which pass through the stack and surround a coupling region; and a plurality of channels passing through the stack in a cell region outside the coupling region. The stack has a structure in which first dielectric layers and second dielectric layers are alternately stacked, inside the coupling region, and has a structure in which the first dielectric layers and electrode layers are alternately stacked, outside the coupling region.
    Type: Grant
    Filed: March 5, 2020
    Date of Patent: April 26, 2022
    Assignee: SK hynix Inc.
    Inventors: Tae Sung Park, Sung Lae Oh, Dong Hyuk Kim, Soo Nam Jung
  • Publication number: 20220122932
    Abstract: A memory device having a vertical structure includes a memory cell array defined in a cell wafer, and having a plurality of word lines extending in a first direction and arranged in a second direction, and having a plurality of bit lines extending in the second direction and arranged in the first direction; and a logic circuit configured to control the memory cell array, and including a page buffer low-voltage circuit, a page buffer high-voltage circuit, a row decoder circuit and a peripheral circuit, wherein the page buffer low-voltage circuit is disposed in a first peripheral wafer and the page buffer high-voltage circuit, the row decoder circuit and the peripheral circuit are disposed in a second peripheral wafer, and wherein the cell wafer overlaps with the first peripheral wafer and the second peripheral wafer in a vertical direction that is perpendicular to a plane formed by the first direction and the second direction.
    Type: Application
    Filed: March 24, 2021
    Publication date: April 21, 2022
    Inventors: Sung Lae OH, Sang Woo PARK, Dong Hyuk CHAE, Ki Soo KIM
  • Publication number: 20220115357
    Abstract: A memory device includes: a first wafer including a first substrate, a plurality of first electrode layers and a plurality of first interlayer dielectric layers alternately stacked along first vertical channels projecting in a vertical direction on a top surface of the first substrate, and a dielectric stack comprising a plurality of dielectric layers and the plurality of first interlayer dielectric layers alternately stacked on the top surface of the first substrate; and a second wafer disposed on the first wafer, and including a second substrate, and a plurality of second electrode layers that are alternately stacked with a plurality of second interlayer dielectric layers along second vertical channels projecting in the vertical direction on a bottom surface of the second substrate and have pad parts overlapping with the dielectric stack in the vertical direction.
    Type: Application
    Filed: December 18, 2021
    Publication date: April 14, 2022
    Inventors: Sung Lae OH, Ki Soo KIM, Sang Woo PARK, Dong Hyuk CHAE
  • Publication number: 20220108999
    Abstract: A three-dimensional memory device includes a lower stack and an upper stack stacked one on the other, and each including a plurality of word lines which are stacked alternately with a plurality of interlayer dielectric layers, wherein each of the lower stack and the upper stack includes a first cell part, a second cell part, a coupling part which couples the first cell part and the second cell part, and a staircase part which extends parallel to the coupling part from the first cell part and in which pad areas of the word lines are disposed in a stepwise manner, and wherein the coupling part of the upper stack is disposed to overlap with the staircase part of the lower stack, and the staircase part of the upper stack is disposed to overlap with the coupling part of the lower stack.
    Type: Application
    Filed: February 8, 2021
    Publication date: April 7, 2022
    Inventor: Sung Lae OH
  • Patent number: 11282819
    Abstract: A semiconductor device includes a first chip, divided into a plurality of regions, including a plurality of first pads and a plurality of first test pads in each of the plurality of regions; and a second chip including a plurality of second pads corresponding to the plurality of first pads and a plurality of second test pads corresponding to the plurality of first test pads, and bonded onto the first chip such that the plurality of second pads are coupled to the plurality of first pads. The second chip includes a voltage generation circuit linked to the plurality of second pads, that provides a compensated voltage to the plurality of second pads for each of the plurality of regions, based on a voltage drop value for each region due to a contact resistance between the plurality of first test pads and the plurality of second test pads.
    Type: Grant
    Filed: March 25, 2020
    Date of Patent: March 22, 2022
    Assignee: SK hynix Inc.
    Inventors: Sung Lae Oh, Sang Hyun Sung, Kwang Hwi Park, Je Hyun Choi
  • Publication number: 20220077172
    Abstract: A memory device includes a substrate defined with a first cell region and a second cell region, and a row decoder region between the first and second cell regions; a peripheral circuit defined in the first and second cell regions of the substrate; pass transistors defined in the row decoder region of the substrate; bottom wiring layers disposed in a first dielectric layer covering the peripheral circuit and the pass transistors; a memory cell array defined on the first dielectric layer; a second dielectric layer defined on the first dielectric layer, and covering the memory cell array; top wiring layers disposed in a third dielectric layer defined on the second dielectric layer; and global lines disposed in the row decoder region, and configured to transfer operating voltages to the pass transistors, wherein the global lines are disposed only in at least one bottom wiring layer from among the bottom and top wiring layers.
    Type: Application
    Filed: February 2, 2021
    Publication date: March 10, 2022
    Inventors: Jin Ho KIM, Young Ki KIM, Sang Hyun SUNG, Sung Lae OH, Byung Hyun JEON
  • Publication number: 20220068844
    Abstract: A semiconductor device having a three-dimensional structure includes a first wafer including a first bonding pad on one surface thereof; a second wafer including a second bonding pad, which is bonded to the first bonding pad, on one surface thereof bonded to the one surface of the first wafer; a plurality of anti-warpage grooves on the one surface of the first wafer, and laid out in a stripe shape; and a plurality of anti-warpage ribs on the one surface of the second wafer and coupled respectively to the plurality of anti-warpage grooves, and laid out in a stripe shape.
    Type: Application
    Filed: February 1, 2021
    Publication date: March 3, 2022
    Inventors: Sung Lae OH, Sang Woo PARK
  • Publication number: 20220045009
    Abstract: A semiconductor device includes a lower wafer including a first substrate, a first dielectric layer that is defined on the first substrate, and a first wiring line that is defined in the first dielectric layer; an upper wafer including a second substrate, an isolation layer that is defined in an upper surface of the second substrate, a second dielectric layer, bonded to an upper surface of the first dielectric layer, that covers a lower surface of the second substrate and that includes at least one portion defined in the lower surface of the second substrate below and in contact with the isolation layer, and a third dielectric layer that is defined on the upper surface of the second substrate, and a second wiring line that is defined on the third dielectric layer; and a through via passing through, under the second wiring line, the third dielectric layer, the isolation layer, the second dielectric layer under the isolation layer and the first dielectric layer, and coupling the second wiring line and the first
    Type: Application
    Filed: January 13, 2021
    Publication date: February 10, 2022
    Inventor: Sung Lae OH
  • Patent number: 11239209
    Abstract: A memory device includes a first memory block defined in a first wafer; and a second memory block defined in a second wafer that is disposed in a vertical direction with respect to the first wafer. A size of the first memory block is smaller than a size of the second memory block.
    Type: Grant
    Filed: October 22, 2020
    Date of Patent: February 1, 2022
    Assignee: SK hynix Inc.
    Inventors: Sung Lae Oh, Ki Soo Kim, Sang Woo Park, Dong Hyuk Chae
  • Patent number: 11232840
    Abstract: A semiconductor device including a page buffer is disclosed, which reduces the number of lines of the page buffer. The semiconductor device includes a plurality of bit lines, classified into a first group and a second group, that are arranged alternating, a first page buffer circuit coupled to the plurality of bit lines and a plurality of connection lines corresponding to the plurality of bit lines, and a second page buffer circuit coupled to the plurality of connection lines. Each of the first group and the second group includes a plurality of bit-line pairs classified into odd bit lines and even bit lines. The plurality of connection lines includes odd connection lines and even connection lines, and odd connection lines corresponding to the odd bit lines are arranged contiguous to each other, and even connection lines corresponding to the even bit lines are arranged contiguous to each other.
    Type: Grant
    Filed: July 17, 2020
    Date of Patent: January 25, 2022
    Assignee: SK hynix Inc.
    Inventors: Sung Lae Oh, Dong Hyuk Kim, Tae Sung Park, Soo Nam Jung
  • Publication number: 20220020764
    Abstract: A three-dimensional memory device includes an electrode structure including a plurality of electrode layers and a plurality of interlayer dielectric layers which are alternately stacked on a substrate; a first stairway structure and a second stairway structure defined in the electrode structure, and positioned at different heights from each other; a sidewall of the electrode structure formed due to a difference in height between the first stairway structure and the second stairway structure; and a dielectric support passing through the electrode structure, and isolating a corner portion of the sidewall from the plurality of electrode layers.
    Type: Application
    Filed: January 8, 2021
    Publication date: January 20, 2022
    Inventors: Sung Lae OH, Jin Ho KIM, Sang Woo PARK, Sang Hyun SUNG