Patents by Inventor DONGKYO SHIM

DONGKYO SHIM 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: 11854623
    Abstract: Provided are a memory controller and memory system having an improved threshold voltage distribution characteristic and an operating method of the memory system. As a write request of data with respect to a first block is received, an erase program interval (EPI) is determined denoting a time period elapsed after erasure of the first block. When the determined EPI is equal to or less than a reference time, data is programmed to the first block based on a first operation condition selected from among a plurality of operation conditions. When the determined EPI is greater than the reference time, the data is programmed to the first block based on a second operation condition selected from among the plurality of operation conditions.
    Type: Grant
    Filed: November 5, 2021
    Date of Patent: December 26, 2023
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Jaeduk Yu, Dongkyo Shim
  • Publication number: 20230153001
    Abstract: Disclosed is a nonvolatile memory device which includes a first plane that includes a plurality of memory blocks, a second plane that includes a plurality of memory blocks, an address replacing circuit that receives a first input address from an external controller, the first input address corresponding to a first memory block of the plurality of memory blocks of the first plane from an external controller and outputs a replaced address based on the first input address and bad block information, and an address decoder that controls word lines connected with a second memory block based on the replaced address, the word lines corresponding to the replaced address from among the plurality of memory blocks of the second plane. The first memory block of the first plane is a bad block.
    Type: Application
    Filed: November 9, 2022
    Publication date: May 18, 2023
    Applicant: Samsung Electronics Co., Ltd.
    Inventors: Dongkyo Shim, Sang Soo Park
  • Patent number: 11315649
    Abstract: Provided are a memory controller and memory system having an improved threshold voltage distribution characteristic and an operating method of the memory system. As a write request of data with respect to a first block is received, an erase program interval (EPI) is determined denoting a time period elapsed after erasure of the first block. When the determined EPI is equal to or less than a reference time, data is programmed to the first block based on a first operation condition selected from among a plurality of operation conditions. When the determined EPI is greater than the reference time, the data is programmed to the first block based on a second operation condition selected from among the plurality of operation conditions.
    Type: Grant
    Filed: August 21, 2020
    Date of Patent: April 26, 2022
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Jaeduk Yu, Dongkyo Shim
  • Publication number: 20220059172
    Abstract: Provided are a memory controller and memory system having an improved threshold voltage distribution characteristic and an operating method of the memory system. As a write request of data with respect to a first block is received, an erase program interval (EPI) is determined denoting a time period elapsed after erasure of the first block. When the determined EPI is equal to or less than a reference time, data is programmed to the first block based on a first operation condition selected from among a plurality of operation conditions. when the When the determined EPI is greater than the reference time, the data is programmed to the first block based on a second operation condition selected from among the plurality of operation conditions.
    Type: Application
    Filed: November 5, 2021
    Publication date: February 24, 2022
    Inventors: Jaeduk Yu, Dongkyo Shim
  • Patent number: 11183250
    Abstract: Provided are a memory controller and memory system having an improved threshold voltage distribution characteristic and an operating method of the memory system. As a write request of data with respect to a first block is received, an erase program interval (EPI) is determined denoting a time period elapsed after erasure of the first block. When the determined EPI is equal to or less than a reference time, data is programmed to the first block based on a first operation condition selected from among a plurality of operation conditions. when the When the determined EPI is greater than the reference time, the data is programmed to the first block based on a second operation condition selected from among the plurality of operation conditions.
    Type: Grant
    Filed: October 23, 2019
    Date of Patent: November 23, 2021
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Jaeduk Yu, Dongkyo Shim
  • Publication number: 20200381068
    Abstract: Provided are a memory controller and memory system having an improved threshold voltage distribution characteristic and an operating method of the memory system. As a write request of data with respect to a first block is received, an erase program interval (EPI) is determined denoting a time period elapsed after erasure of the first block. When the determined EPI is equal to or less than a reference time, data is programmed to the first block based on a first operation condition selected from among a plurality of operation conditions. When the determined EPI is greater than the reference time, the data is programmed to the first block based on a second operation condition selected from among the plurality of operation conditions.
    Type: Application
    Filed: August 21, 2020
    Publication date: December 3, 2020
    Inventors: Jaeduk Yu, Dongkyo Shim
  • Publication number: 20200335169
    Abstract: Provided are a memory controller and memory system having an improved threshold voltage distribution characteristic and an operating method of the memory system. As a write request of data with respect to a first block is received, an erase program interval (EPI) is determined denoting a time period elapsed after erasure of the first block. When the determined EPI is equal to or less than a reference time, data is programmed to the first block based on a first operation condition selected from among a plurality of operation conditions. when the When the determined EPI is greater than the reference time, the data is programmed to the first block based on a second operation condition selected from among the plurality of operation conditions.
    Type: Application
    Filed: October 23, 2019
    Publication date: October 22, 2020
    Inventors: Jaeduk Yu, Dongkyo Shim
  • Patent number: 10699782
    Abstract: A nonvolatile memory device includes a voltage generator that sequentially provides a first setup voltage and second setup voltage to a word line of a memory cell array, and control logic including a time control unit that determines a word line setup time for the word line in relation to the second setup voltage based on a difference between the first and second setup voltages.
    Type: Grant
    Filed: July 3, 2019
    Date of Patent: June 30, 2020
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Sang-Won Park, Dongkyo Shim, Kitae Park, Sang-Won Shim
  • Publication number: 20190325952
    Abstract: A nonvolatile memory device includes a voltage generator that sequentially provides a first setup voltage and second setup voltage to a word line of a memory cell array, and control logic including a time control unit that determines a word line setup time for the word line in relation to the second setup voltage based on a difference between the first and second setup voltages.
    Type: Application
    Filed: July 3, 2019
    Publication date: October 24, 2019
    Inventors: SANG-WON PARK, DONGKYO SHIM, KITAE PARK, SANG-WON SHIM
  • Patent number: 10388367
    Abstract: A nonvolatile memory device includes a voltage generator that sequentially provides a first setup voltage and second setup voltage to a word line of a memory cell array, and control logic including a time control unit that determines a word line setup time for the word line in relation to the second setup voltage based on a difference between the first and second setup voltages.
    Type: Grant
    Filed: November 15, 2016
    Date of Patent: August 20, 2019
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Sang-Won Park, Dongkyo Shim, Kitae Park, Sang-Won Shim
  • Patent number: 10090046
    Abstract: Disclosed is a nonvolatile memory device. The nonvolatile memory device includes a cell array including a plurality of memory cells, a page buffer including a plurality of latch sets, and a control logic. The page buffer is connected to the cell array through bit lines. The latch sets respectively are configured to sense data from selected memory cells among the memory cells through the bit lines. The latch sets respectively are configured to perform a plurality of read operations to determine one data state. The latch sets are respectively configured to store results of the read operations. The control logic configured to control the page buffer such that the latch sets sequentially and respectively store the results of the read operations, to compare data stored in the latch sets with each other, and to select one latch set among the latch sets based on the comparison result.
    Type: Grant
    Filed: November 2, 2016
    Date of Patent: October 2, 2018
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Sang-Soo Park, June-Hong Park, Dongkyo Shim
  • Patent number: 9824761
    Abstract: A programming method of a nonvolatile memory device including; programming data in memory cells connected to a word line by performing a coarse program operation; and programming the data in the memory cells by performing a fine program operation, wherein the number of program states in the coarse program operation is changed according to a program/erase (P/E) cycle number.
    Type: Grant
    Filed: April 26, 2016
    Date of Patent: November 21, 2017
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: DongHun Kwak, Dongkyo Shim, Kitae Park, Hyun-Wook Park
  • Patent number: 9812214
    Abstract: A nonvolatile memory device may include a memory cell array, an address decoder circuit, a page buffer circuit, and a control logic circuit. An erase operation includes iteratively performing an erase loop which includes an erase section where an erase voltage is applied to the memory cells of the selected memory block and an erase verification section where the memory cells of the selected memory block are verified using an erase verification voltage. If the memory cells of the selected memory block are determined as an erase pass in the erase verification section, the control logic circuit monitors the memory cells of the selected memory block. If the monitored result indicates that the memory cells of the selected memory block are at an abnormal state, the control logic circuit applies an extra erase voltage to the memory cells of the selected memory block.
    Type: Grant
    Filed: November 1, 2016
    Date of Patent: November 7, 2017
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Dongkyo Shim, Sang-Soo Park
  • Publication number: 20170133087
    Abstract: Disclosed is a nonvolatile memory device. The nonvolatile memory device includes a cell array including a plurality of memory cells, a page buffer including a plurality of latch sets, and a control logic. The page buffer is connected to the cell array through bit lines. The latch sets respectively are configured to sense data from selected memory cells among the memory cells through the bit lines. The latch sets respectively are configured to perform a plurality of read operations to determine one data state. The latch sets are respectively configured to store results of the read operations. The control logic configured to control the page buffer such that the latch sets sequentially and respectively store the results of the read operations, to compare data stored in the latch sets with each other, and to select one latch set among the latch sets based on the comparison result.
    Type: Application
    Filed: November 2, 2016
    Publication date: May 11, 2017
    Inventors: Sang-Soo PARK, June-Hong PARK, Dongkyo SHIM
  • Publication number: 20170125116
    Abstract: A nonvolatile memory device may include a memory cell array, an address decoder circuit, a page buffer circuit, and a control logic circuit. An erase operation includes iteratively performing an erase loop which includes an erase section where an erase voltage is applied to the memory cells of the selected memory block and an erase verification section where the memory cells of the selected memory block are verified using an erase verification voltage. If the memory cells of the selected memory block are determined as an erase pass in the erase verification section, the control logic circuit monitors the memory cells of the selected memory block. If the monitored result indicates that the memory cells of the selected memory block are at an abnormal state, the control logic circuit applies an extra erase voltage to the memory cells of the selected memory block.
    Type: Application
    Filed: November 1, 2016
    Publication date: May 4, 2017
    Inventors: Dongkyo SHIM, Sang-Soo PARK
  • Publication number: 20170062046
    Abstract: A nonvolatile memory device includes a voltage generator that sequentially provides a first setup voltage and second setup voltage to a word line of a memory cell array, and control logic including a time control unit that determines a word line setup time for the word line in relation to the second setup voltage based on a difference between the first and second setup voltages.
    Type: Application
    Filed: November 15, 2016
    Publication date: March 2, 2017
    Inventors: SANG-WON PARK, DONGKYO SHIM, KITAE PARK, SANG-WON SHIM
  • Patent number: 9520168
    Abstract: A nonvolatile memory device includes a cell array including a plurality of cell strings extending on a substrate in a vertical direction, a page buffer connected to a plurality of bit lines and configured to store sensing data of the cell array in a sensing operation, a voltage generator configured to provide voltages to a plurality of word lines and the plurality of bit lines, and an input/output buffer configured to temporarily store the sensing data received in a data dump from the page buffer and to output the temporarily stored data to an external device. The nonvolatile memory device further includes control logic configured to set a status of the nonvolatile memory device to a ready state after the sensing data is dumped to the input/output buffer and before recovery of the cell array from a bias voltage of the sensing operation is complete.
    Type: Grant
    Filed: May 11, 2016
    Date of Patent: December 13, 2016
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Donghun Kwak, Hyun Jun Yoon, Dongkyo Shim
  • Patent number: 9502124
    Abstract: A nonvolatile memory device includes a voltage generator that sequentially provides a first setup voltage and second setup voltage to a word line of a memory cell array, and control logic including a time control unit that determines a word line setup time for the word line in relation to the second setup voltage based on a difference between the first and second setup voltages.
    Type: Grant
    Filed: July 2, 2014
    Date of Patent: November 22, 2016
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Sang-Won Park, Dongkyo Shim, Kitae Park, Sang-Won Shim
  • Publication number: 20160254038
    Abstract: A nonvolatile memory device includes a cell array including a plurality of cell strings extending on a substrate in a vertical direction, a page buffer connected to a plurality of bit lines and configured to store sensing data of the cell array in a sensing operation, a voltage generator configured to provide voltages to a plurality of word lines and the plurality of bit lines, and an input/output buffer configured to temporarily store the sensing data received in a data dump from the page buffer and to output the temporarily stored data to an external device. The nonvolatile memory device further includes control logic configured to set a status of the nonvolatile memory device to a ready state after the sensing data is dumped to the input/output buffer and before recovery of the cell array from a bias voltage of the sensing operation is complete.
    Type: Application
    Filed: May 11, 2016
    Publication date: September 1, 2016
    Inventors: DONGHUN KWAK, HYUN JUN YOON, DONGKYO SHIM
  • Publication number: 20160240257
    Abstract: A write method of a storage device includes determining whether to perform a coarse program operation based on information about memory cells of a memory device, in response to a determination that the coarse program operation is to be performed, programming data in the memory device by performing the coarse program operation and a fine program operation, and in response to a determination that the coarse program operation is not to be performed, programming data in the memory device by performing the fine program operation.
    Type: Application
    Filed: April 26, 2016
    Publication date: August 18, 2016
    Inventors: DONGHUN KWAK, Dongkyo Shim, Kitae Park, Hyun-Wook Park