Patents by Inventor Byungchul An

Byungchul An 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: 20230153026
    Abstract: Disclosed is an operation method of a storage device, which includes a plurality of data processing engines includes setting a first region among a plurality of regions of a host memory buffer allocated from an external host with a first data processing policy and setting a second region among the plurality of regions with a second data processing policy, performing an encoding operation on data to be stored in the first region, based on a first data processing engine corresponding to the first data processing policy, performing an encoding operation on data to be stored in the second region, based on a second data processing engine corresponding to the second data processing policy, and changing the first data processing policy of the first region to a third data processing policy based on a changed characteristic of the first region.
    Type: Application
    Filed: October 3, 2022
    Publication date: May 18, 2023
    Inventors: Ranhee LEE, Byungchul KO
  • Publication number: 20230154537
    Abstract: A storage device includes a non-volatile memory device. The non-volatile memory device includes a first substrate including a first peripheral circuit region including a row decoder selecting one word line from among a plurality of word lines of a three-dimensional (3D) memory cell array and a second substrate including a second peripheral circuit region, including a page buffer unit selecting at least one bit line from among a plurality of bit lines of the 3D memory cell array, and a cell region including the 3D memory cell array formed in the second peripheral circuit region. The 3D memory cell array is disposed between the first peripheral circuit region and the second peripheral circuit region by vertically stacking and bonding the second substrate on and to the first substrate.
    Type: Application
    Filed: September 25, 2022
    Publication date: May 18, 2023
    Inventors: YOUNGGUL SONG, Junyeong Seok, Eun Chu Oh, Byungchul Jang
  • Publication number: 20230153202
    Abstract: A method of operating a memory system that comprises a memory device including a plurality of memory blocks and a memory controller, includes detecting a first memory block having a degradation count greater than or equal to a first reference value by the memory controller. A first command for the first memory block is transmitted to the memory device by the memory controller. A first voltage is applied to all of a plurality of word lines connected to the first memory block and a second voltage to a bit line connected to the first memory block in response to the first command by the memory device. The first voltage is greater than a voltage applied to turn on memory cells connected to all of the plurality of word lines. The second voltage is greater than a voltage applied to the bit line during program, read or erase operations.
    Type: Application
    Filed: October 13, 2022
    Publication date: May 18, 2023
    Inventors: Younggul SONG, Byungchul JANG, Junyeong SEOK, Eun Chu OH
  • Publication number: 20230143214
    Abstract: The display device includes a display panel, a circuit board having a first surface facing a bottom of the display panel and a second surface opposite to the first surface, and a cover member attached to the bottom of the display panel to cover the second surface of the circuit board. A first alignment mark is formed on the second surface of the circuit board, and a second alignment mark corresponding to the first alignment mark is formed in a transparent area of the cover member.
    Type: Application
    Filed: August 11, 2022
    Publication date: May 11, 2023
    Inventors: HYUNSEOP SONG, JOOYOUNG KIM, YOUNG-JOO NAM, BYUNGCHUL SHIN
  • Publication number: 20230141554
    Abstract: A method of operating a memory system includes programming, in a memory device, K logical pages stored in a page buffer circuit into a memory cell array, reading, from the memory device, the K logical pages programmed into the memory cell array into the page buffer circuit after a first delay time elapses, transmitting, in a memory controller, N?K logical pages to the memory device, and programming, in the memory device, N logical pages into the memory cell array based on the read K logical pages and the N?K logical pages, wherein K is a positive integer and N is a positive integer greater than K.
    Type: Application
    Filed: November 9, 2022
    Publication date: May 11, 2023
    Inventors: EUN CHU OH, Junyeong Seok, Younggul Song, Byungchul Jang
  • Patent number: 11646398
    Abstract: A semiconductor light emitting device including a semiconductor laminate having first and second surfaces, the semiconductor laminate including first and second conductivity-type semiconductor layers, and an active layer between the semiconductor layers; a partition structure on the first surface, the partition structure having a window defining a light emitting region of the first surface of the semiconductor laminate; a wavelength converter in the window, the wavelength converter being configured to convert a wavelength of light emitted from the active layer; and a first electrode and a second electrode on the second surface of the semiconductor laminate and respectively connected to the first conductivity-type semiconductor layer and the second conductivity-type semiconductor layer, wherein the semiconductor laminate includes a plurality of first patterns arranged in the light emitting region of the first surface, and a plurality of second patterns arranged in a covered region of the first surface contacti
    Type: Grant
    Filed: May 18, 2021
    Date of Patent: May 9, 2023
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Kiwon Park, Namsung Kim, Youngsub Shin, Jonghyun Lee, Daemyung Chun, Byungchul Choi
  • Publication number: 20230118956
    Abstract: A non-volatile memory device includes a substrate, a stack structure that includes a first gate layer that extends in a horizontal direction and a second gate layer that extends in the horizontal direction and is disposed apart from the first gate layer in a vertical direction, a plurality of first channel structures that penetrate in the vertical direction through a first channel region of the stack structure, a plurality of second channel structures that penetrate in the vertical direction through a second channel region of the stack structure, a first anti-fuse structure and a second anti-fuse structure that each penetrate in the vertical direction through an anti-fuse region of the stack structure, a first anti-fuse transistor that is electrically connected to the first gate layer through the first anti-fuse structure, and a second anti-fuse transistor that is electrically connected to the second gate layer through the second anti-fuse structure.
    Type: Application
    Filed: October 17, 2022
    Publication date: April 20, 2023
    Inventors: Younggul Song, Junyeong Seok, Eun chu OH, Minho Kim, Byungchul Jang
  • Publication number: 20230112694
    Abstract: A storage device includes a nonvolatile memory device including a memory cell array and a storage controller to control the nonvolatile memory device. The memory cell array includes word-lines, memory cells and word-line cut regions dividing the word-lines into memory blocks. The storage controller includes an error correction code (ECC) engine including an ECC encoder and a memory interface. The ECC encoder performs a first ECC encoding operation on each of sub data units in user data to generate parity bits and generate a plurality of ECC sectors, selects outer cell bits to be stored in outer cells to constitute an outer ECC sector including the outer cell bits and performs a second ECC encoding operation on the outer ECC sector to generate outer parity bits. The memory interface transmits, to the nonvolatile memory device, a codeword set including the ECC sectors and the outer parity bits.
    Type: Application
    Filed: May 23, 2022
    Publication date: April 13, 2023
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Eun Chu Oh, Junyeong Seok, Younggul Song, Wijik Lee, Byungchul Jang
  • Publication number: 20230111033
    Abstract: A storage device, including a nonvolatile memory device and a storage controller configured to control the nonvolatile memory device. The nonvolatile memory device includes a memory cell array including a plurality of word-lines stacked on a substrate, a plurality of memory cells provided in a plurality of channel holes, and a word-line cut region dividing the plurality of word-lines into a plurality of memory blocks. The storage controller groups a plurality of target memory cells into outer cells and inner cells. The storage controller includes an error correction code (ECC) decoder configured to perform an ECC decoding operation by obtaining outer cell bits and inner cell bits during a read operation on the plurality of target memory cells, and applying different log likelihood ratio (LLR) values to the outer cell bits and the inner cell bits.
    Type: Application
    Filed: May 20, 2022
    Publication date: April 13, 2023
    Applicant: SAMSUNG ELECTRONICS CO, LTD.
    Inventors: Eun Chu Oh, Junyeong Seok, Younggul Song, Byungchul Jang
  • Patent number: 11613698
    Abstract: To provide a semiconductor light emitting device which is capable of accomplishing a broad color reproducibility for an entire image without losing brightness of the entire image. A light source provided on a backlight for a color image display device has a semiconductor light emitting device comprising a solid light emitting device to emit light in a blue or deep blue region or in an ultraviolet region and phosphors, in combination. The phosphors comprise a green emitting phosphor and a red emitting phosphor. The green emitting phosphor and the red emitting phosphor are ones, of which the rate of change of the emission peak intensity at 100° C. to the emission intensity at 25° C., when the wavelength of the excitation light is 400 nm or 455 nm, is at most 40%.
    Type: Grant
    Filed: November 13, 2020
    Date of Patent: March 28, 2023
    Assignees: CITIZEN ELECTRONICS CO., LTD., NICHIA CORPORATION
    Inventors: Byungchul Hong, Naoki Sako, Naoto Kijima, Masahiko Yoshino, Takashi Hase, Fumiko Yoyasu, Kentarou Horibe
  • Publication number: 20230060469
    Abstract: A three-dimensional (3D) storage device using wafer-to-wafer bonding is disclosed. In the storage device, a first chip including a peripheral circuit region including a first control logic circuit configured to control operation modes of a nonvolatile memory (NVM) device is wafer-bonded with a second chip including 3D arrays of NVM cells, and a memory controller includes a third chip including a control circuit region. The control circuit region of the third chip includes a second control logic circuit associated with operation conditions of the NVM device, and the second control logic circuit includes a serializer/deserializer (SERDES) interface configured to share random access memory (RAM) in the memory controller and transmit and receive data to and from the NVM device.
    Type: Application
    Filed: June 30, 2022
    Publication date: March 2, 2023
    Applicant: Samsung Electronics Co., Ltd.
    Inventors: Eun Chu OH, Junyeong SEOK, Younggul SONG, Byungchul JANG, Joonsung LIM
  • Publication number: 20230054754
    Abstract: A storage device includes a NAND flash memory device, an auxiliary memory device and a storage controller to control the NAND flash memory device and the auxiliary memory device. The storage controller includes a processor, an error correction code (ECC) engine and a memory interface. The processor executes a flash translation layer (FTL) loaded onto an on-chip memory. The ECC engine generates first parity bits for user data to be stored in a target page of the NAND flash memory device based on error attribute of a target memory region associated with the target page, and selectively generates additional parity bits for the user data under control of the processor. The memory interface transmits the user data and the first parity bits to the NAND flash memory device, and selectively transmits the additional parity bits to the auxiliary memory device.
    Type: Application
    Filed: March 23, 2022
    Publication date: February 23, 2023
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Eun Chu Oh, Junyeong Seok, Younggul Song, Byungchul Jang
  • Patent number: 11587974
    Abstract: A micro light emitting diode (LED) transferring method includes setting a micro LED transfer substrate and a target substrate to initial positions and transferring a plurality of micro LEDs arranged in a partial region of the micro LED transfer substrate to the target substrate. Once the micro LEDs in the partial region are transferred to the target substrate, the micro LED transfer substrate is rotated and a plurality of micro LEDs, arranged in a remaining region of the micro LED transfer substrate, are then transferred to the target substrate.
    Type: Grant
    Filed: April 29, 2020
    Date of Patent: February 21, 2023
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Byungchul Kim, Doyoung Kwag, Eunhye Kim, Sangmoo Park, Minsub Oh, Dongyeob Lee, Yoonsuk Lee
  • Publication number: 20230052161
    Abstract: In a method of operating one or more nonvolatile memory devices including one or more memory blocks, each memory block includes a plurality of memory cells and a plurality of pages arranged in a vertical direction. Pages arranged in a first direction of a channel hole are set as first to N-th pages. A size of the channel hole increases in the first direction and decreases in the second direction. Pages arranged in a second direction of the channel hole are set as (N+1)-th to 2N-th pages. First to N-th page pairs are set such that a K-th page among the first to the N-th pages and an (N+K)-th page among the (N+1)-th to 2N-th pages form one page pair. Parity regions of two pages included in at least one page pair are shared by the two pages included in the at least one page pair.
    Type: Application
    Filed: July 26, 2022
    Publication date: February 16, 2023
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Junyeong Seok, Younggul Song, Eunchu Oh, Byungchul Jang, Joonsung Lim
  • Patent number: 11582615
    Abstract: Disclosed is a 5G or pre-5G communication system for supporting a data transmission rate higher than that of a 4G communication system such as LTE. The present invention relates to a method by which a simulator analyzes a radio wave environment in a wireless communication system, and the method of the present invention comprises the steps of: allowing a simulator to receive geographic information and position information by which a transmitter and a receiver can be positioned in the geographic information; generating, by the transmitter of the simulator arranged at a random position in accordance with the position information, radio waves for at least one direction of a sphere having a fixed radius; grouping into at least one group on the basis of a traveling route of the generated radio waves; setting each group as an operation unit (Warp/Wavefront) for a graphics processing unit (GPU); and analyzing a radio wave environment by using the GPU in which the operation unit is set.
    Type: Grant
    Filed: December 28, 2018
    Date of Patent: February 14, 2023
    Assignees: SAMSUNG ELECTRONICS CO., LTD., INDUSTRY-ACADEMIC COOPERATION FOUNDATION, YONSEI UNIVERSITY
    Inventors: Seungku Han, Won Woo Ro, Byungchul Kim, Myungkuk Yoon, Hyunjin Chung, Youngju Lee
  • Publication number: 20230038363
    Abstract: Provided is a three-dimensional storage device using wafer-to-wafer bonding. A storage device includes a first chip including a first substrate and a peripheral circuit region including a first control logic circuit configured to control operation modes of the non-volatile memory device and a second chip including a second substrate and three-dimensional arrays of non-volatile memory cells. The second chip may be vertically stacked on the first chip so that a first surface of the first substrate faces a first surface of the second substrate, and a second control logic circuit is configured to control operation conditions of the non-volatile memory device and is arranged on a second surface of the second substrate, the second surface of the second substrate being opposite to the first surface of the second substrate of the second chip.
    Type: Application
    Filed: June 24, 2022
    Publication date: February 9, 2023
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Eun Chu OH, Byungchul JANG, Junyeong SEOK, Younggul SONG, Joonsung LIM
  • Patent number: 11560516
    Abstract: An object of the present invention is to provide an infrared light-emitting phosphor which emits light in a wavelength range where the sensitivity of a detector is high by combination with a semiconductor light-emitting element that emits light in the visible light region, and to provide an infrared light-emitting device using the infrared light-emitting phosphor. The object can be achieved with a light-emitting device including a semiconductor light-emitting element that emits ultraviolet light or visible light and a phosphor that absorbs ultraviolet light or visible light emitted from the semiconductor light-emitting element and emits light in the infrared region, wherein an emission peak wavelength in the infrared region of the phosphor emitting in the infrared region is from 750 to 1,050 nm, and the half width of an emission peak waveform is more than 50 nm.
    Type: Grant
    Filed: October 2, 2019
    Date of Patent: January 24, 2023
    Assignee: Mitsubishi Chemical Corporation
    Inventor: Byungchul Hong
  • Publication number: 20230016628
    Abstract: Provided is a semiconductor device. The semiconductor device includes: a plurality of insulating layers and a plurality of gate electrodes alternately arranged in a first direction; and a plurality of channel structures passing through the plurality of gate electrodes and the plurality of insulating layers in the first direction, wherein each of the plurality of gate electrodes includes: a first conductive layer including an inner wall surrounding the plurality of channel structures; and a second conductive layer that is separated from the plurality of channel structures in a second direction perpendicular to the first direction, wherein resistivity of the second conductive layer is less than resistivity of the first conductive layer.
    Type: Application
    Filed: December 31, 2021
    Publication date: January 19, 2023
    Inventors: YOUNGGUL SONG, JUNYEONG SEOK, EUN CHU OH, BYUNGCHUL JANG, JOONSUNG LIM
  • Publication number: 20230015496
    Abstract: A nonvolatile memory (NVM) device includes a plurality of memory blocks and a control logic receiving a specific command and an address. The control logic may perform a cell count-based dynamic read (CDR) operation on memory cells connected to one of wordlines of a selected block, among the plurality of memory blocks, in response to the address. The control logic includes a cell count comparator circuit configured to compare: (1) a first cell count value for a highest state among a plurality of states with at least one reference value according to the CDR operation and (2) a second cell count value for an erase state among the plurality of states with the at least one reference value. Additionally, the control logic includes a read level selector configured to select a read level according to a result of the comparison of the cell count comparator circuit.
    Type: Application
    Filed: January 18, 2022
    Publication date: January 19, 2023
    Inventors: EUN CHU OH, BYUNGCHUL JANG, JUNYEONG SEOK, YOUNGGUL SONG, JOONSUNG LIM
  • Publication number: 20230004210
    Abstract: A system on chip (SoC) includes a first core and a second core, first and second power gating switches, and a first power switch. The first power gating switch is arranged between the first core and a first power rail that receives a first voltage, and is selectively turned on in response to a first power gating signal. The second power gating switch is arranged between the second core and a second power rail that receives a second voltage, and is selectively turned on in response to a second power gating signal. The first power switch is arranged between the first power rail and the second power rail, and is selectively turned on in response to a first power control signal to connect the first power gating switch or the second power gating switch both the first power rail and the second power rail.
    Type: Application
    Filed: September 13, 2022
    Publication date: January 5, 2023
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Byungchul JEON, Jae Min Kim, Hyunseok Kim, Junho Huh