Patents by Inventor Gyosoo Choo

Gyosoo Choo 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).

  • Publication number: 20240153830
    Abstract: A semiconductor device includes a semiconductor die, a detection structure, a path control circuit and a detection circuit. The semiconductor die includes a central region in which a semiconductor integrated circuit is provided and an external region surrounding the central region. The detection structure is provided in the external region. The path control circuit includes a plurality of switches that controls electrical connection of the detection structure. The detection circuit determines whether a defect is present in the semiconductor die and a location of the defect based on a difference signal. The difference signal corresponds to a difference between a forward direction test output signal and a backward direction test output signal obtained by propagating a test input signal through the detection structure in a forward direction and a backward direction, respectively, via the path control circuit.
    Type: Application
    Filed: April 26, 2023
    Publication date: May 9, 2024
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Gyosoo CHOO, Daeseok BYEON, Sunghun KIM
  • Publication number: 20240145306
    Abstract: A method of manufacturing a semiconductor device is provided. The method includes: forming a first structure on a first wafer; forming a second structure on a second wafer including second chip regions and a second scribe lane region surrounding the second chip regions; separating first ones of the second chip regions in a central portion of the second wafer in a plan view by a first dicing process; bonding the first ones of the second chip regions with the first wafer; separating second ones of the second chip regions in an edge portion of the second wafer in a plan view by a second dicing process; bonding the second ones of the second chip regions with the first wafer, and separating the bonded first and second wafers by a third dicing process.
    Type: Application
    Filed: August 21, 2023
    Publication date: May 2, 2024
    Applicant: Samsung Electronics Co., Ltd.
    Inventors: Gyosoo CHOO, Daeseok Byeon, Taehong Kwon
  • Publication number: 20240128135
    Abstract: A semiconductor device with a structure in which a plurality of chips are stacked includes: a chip area; a scribe lane at a circumference of the chip area; a dam structure that separates the chip area and the scribe lane; a detection wire that extends from the chip area to the scribe lane by passing through the dam structure; and a detection circuit in the chip area that is electrically connected to the detection wire and is configured to detect a defect in the scribe lane.
    Type: Application
    Filed: June 9, 2023
    Publication date: April 18, 2024
    Inventors: GYOSOO CHOO, DAESEOK BYEON, WOOSUNG YANG
  • Publication number: 20240125841
    Abstract: An embodiment provides a test element group (TEG) circuit, including: a first pad configured for a test voltage to be applied; an amplifier including a first input terminal connected to the first pad, a second input terminal connected to a first terminal of a test transistor, and an output terminal electrically connected to the second input terminal; a variable resistor including one terminal connected to the output terminal of the amplifier and the other terminal connected to the first terminal of the test transistor; and a gate driving circuit that supplies a gate voltage to a gate of the test transistor.
    Type: Application
    Filed: August 23, 2023
    Publication date: April 18, 2024
    Inventors: Cheongwon Lee, Gyosoo Choo, Youngwoo Park, Seunghoon Lee, Jinwoo Choi
  • Publication number: 20240105267
    Abstract: Provided is a non-volatile memory device including a page buffer circuit having a multi-stage structure, wherein a stage of the multi-stage structure includes a high voltage region, a first low voltage region, and a second low voltage region. The high voltage region includes a first high voltage transistor connected to one of first to sixth bit lines and a second high voltage transistor connected to one of seventh to twelfth bit lines, the first low voltage region includes a first transistor connected to the first high voltage transistor, and the second low voltage region includes a second transistor connected to the second high voltage transistor. Each of the first low voltage region and the second low voltage regions has a first width corresponding to a pitch of six bit lines, and the high voltage region has a second width corresponding to a pitch of twelve bit lines.
    Type: Application
    Filed: May 24, 2023
    Publication date: March 28, 2024
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Inho Kang, Daeseok Byeon, Beakhyung Cho, Min-Hwi Kim, Yongsung Cho, Gyosoo Choo
  • Publication number: 20240090240
    Abstract: An integrated circuit (IC) device includes a peripheral circuit structure and cell array structure. The peripheral circuit structure includes a circuit substrate, a peripheral circuit, a first insulating layer covering the circuit substrate and the peripheral circuit, and a first bonding pad. The cell array structure includes an insulating structure having first and second surfaces opposing each other, a conductive plate on the first surface, a memory cell array on the conductive plate, a second insulating layer, a second bonding pad disposed on the second insulating layer, first and second wiring lines spaced apart from each other on the second surface, a conductive via passing through the insulating structure and connecting the conductive plate to the first wiring line, and a contact structure electrically connecting the first wiring line to the second bonding pad. The first bonding pad is in contact with the second bonding pad.
    Type: Application
    Filed: September 13, 2023
    Publication date: March 14, 2024
    Applicant: Samsung Electronics Co., Ltd.
    Inventors: TAKUYA FUTATSUYAMA, Daeseok Byeon, Gyosoo Choo
  • Publication number: 20240046994
    Abstract: The present disclosure provides serial-gate transistors and nonvolatile memory devices including serial-gate transistors. In some embodiments, a nonvolatile memory device includes a plurality of memory blocks, a plurality of pass transistor blocks, and a plurality of gates sequentially arranged in a horizontal direction in a gate region above a semiconductor substrate. Each of the plurality of pass transistor blocks includes a plurality of serial-gate transistors configured to transfer a plurality of driving signals to a corresponding memory block of the plurality of memory blocks. Each of the plurality of serial-gate transistors includes a first source-drain region, a gate region, and a second source-drain region that are sequentially arranged in a horizontal direction at a semiconductor substrate. The plurality of gates are electrically decoupled from each other. A plurality of block selection signals respectively applied to the plurality of gates are controlled independently of each other.
    Type: Application
    Filed: March 10, 2023
    Publication date: February 8, 2024
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Cheonan LEE, Kiwhan Song, Gyosoo Choo, Sukkang Sung
  • Publication number: 20240029798
    Abstract: Various example embodiments provide a flash memory device, comprising a cell string having a plurality of memory cells; a page buffer connected to the cell string and a bit line and configured to sense data stored in a selected memory cell from among the plurality of memory cells by precharging a sensing node connected to the bit line; and a voltage regulator providing a source voltage to the page buffer. The page buffer comprises a latch including first and second inverters coupled between a latch node and an inverted latch node; and a pull-down NMOS transistor for tripping the sensing result of the selected memory cell to the latch node. The voltage regulator adjusts a trip voltage by providing the source voltage to the pull-down NMOS transistor. The flash memory device according to the embodiment of the present invention may reduce a trip voltage variation range by using only the pull-down NMOS transistor characteristics.
    Type: Application
    Filed: February 28, 2023
    Publication date: January 25, 2024
    Applicant: Samsung Electronics Co., Ltd.
    Inventors: Tae-Hong KWON, Kiwhan Song, Gyosoo Choo
  • Patent number: 9905301
    Abstract: A nonvolatile memory device includes a memory cell, a bit line, a page buffer, and a control logic. The page buffer is connected to the memory cell through the bit line and the page buffer is configured to precharge the bit line to perform a desired operation. The desired operation may be one of a read operation and a verify operation. The control logic is configured to control bit line development time differently according to a temperature after precharging the bit line during the desired operation. The control logic is configured to determine the bit line development time according to a period of a reference clock signal that includes a different frequency depending on the temperature and/or a temperature compensation pulse signal including a pulse width that varies based on the temperature.
    Type: Grant
    Filed: September 23, 2016
    Date of Patent: February 27, 2018
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Pil Seon Yoo, Ji-Sang Lee, Gyosoo Choo
  • Publication number: 20170133096
    Abstract: A nonvolatile memory device includes a memory cell, a bit line, a page buffer, and a control logic. The page buffer is connected to the memory cell through the bit line and the page buffer is configured to precharge the bit line to perform a desired operation. The desired operation may be one of a read operation and a verify operation. The control logic is configured to control bit line development time differently according to a temperature after precharging the bit line during the desired operation. The control logic is configured to determine the bit line development time according to a period of a reference clock signal that includes a different frequency depending on the temperature and/or a temperature compensation pulse signal including a pulse width that varies based on the temperature.
    Type: Application
    Filed: September 23, 2016
    Publication date: May 11, 2017
    Inventors: Pil Seon Yoo, Ji-Sang Lee, Gyosoo Choo
  • Patent number: 9424940
    Abstract: A nonvolatile memory device includes a substrate, a plurality of memory cells stacked in a direction perpendicular to the substrate, word lines connected to the memory cells, a ground select transistor between the memory cells and the substrate, a ground select transistor between the memory cells and the substrate, a ground select line connected to the ground select transistor, a bit line on the memory cells, and a string select transistor between the memory cells and the bit line. In an erase operation, the ground select line is floated at a time when a specific time passes after the erase voltage is provided to the substrate. And the ground select line is floated at different times depending on a temperature.
    Type: Grant
    Filed: January 4, 2016
    Date of Patent: August 23, 2016
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Gyosoo Choo, Dongku Kang, Sungwhan Seo, Moosung Kim