Patents by Inventor Hye Lyoung LEE

Hye Lyoung 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).

  • Publication number: 20230420056
    Abstract: The present technology relates to a memory device and a method of operating the memory device. The memory device includes a memory block including a plurality of memory cells corresponding to a plurality of word line groups, a source line driver configured to apply an erase voltage to a source line of the memory block during an erase operation, a voltage generation circuit configured to apply an operation voltage increasing from a first operation voltage to a second operation voltage to the plurality of word line groups during the erase operation, and a control logic configured to control the source line driver and the voltage generation circuit to perform a suspend operation of stopping the erase operation.
    Type: Application
    Filed: November 8, 2022
    Publication date: December 28, 2023
    Applicant: SK hynix Inc.
    Inventors: Hye Lyoung LEE, Tae Un YOUN, Kwang Min LIM
  • Patent number: 11114173
    Abstract: Provided herein may be a semiconductor memory device and a method of operating the same. The semiconductor memory device may include peripheral circuits configured to perform a verify operation on selected memory cells by applying a verify voltage to a word line, and perform a compensation program operation on the selected memory cells by applying a compensation program voltage to the word line; and a control logic configured to control the peripheral circuits such that the compensation program operation is performed by applying the compensation program voltage to the selected memory cells to be programmed to a selected threshold voltage distribution among the threshold voltage distributions other than a highest threshold voltage distribution, wherein the compensation program voltage has a positive voltage lower than the main program voltage most recently applied to the word line.
    Type: Grant
    Filed: July 12, 2019
    Date of Patent: September 7, 2021
    Assignee: SK hynix inc.
    Inventors: Hye Lyoung Lee, Bong Hoon Lee, Chan Lim
  • Publication number: 20200202952
    Abstract: A controller, for use in memory system, includes: a processor configured to control a read operation for a target memory area of a memory device in response to a read command received from a host; and an error correction circuit configured to perform an error correction operation on read data corresponding to the read operation, wherein the processor selects an optimum read voltage set among a plurality of read voltage sets in a read retry table, based on an erase write cycling (EW) number of the target memory area and a fail bit number of the read data.
    Type: Application
    Filed: July 12, 2019
    Publication date: June 25, 2020
    Inventors: Keun Woo LEE, Hye Lyoung LEE, Yun Sik CHOI
  • Publication number: 20190333593
    Abstract: Provided herein may be a semiconductor memory device and a method of operating the same. The semiconductor memory device may include peripheral circuits configured to perform a verify operation on selected memory cells by applying a verify voltage to a word line, and perform a compensation program operation on the selected memory cells by applying a compensation program voltage to the word line; and a control logic configured to control the peripheral circuits such that the compensation program operation is performed by applying the compensation program voltage to the selected memory cells to be programmed to a selected threshold voltage distribution among the threshold voltage distributions other than a highest threshold voltage distribution, wherein the compensation program voltage has a positive voltage lower than the main program voltage most recently applied to the word line.
    Type: Application
    Filed: July 12, 2019
    Publication date: October 31, 2019
    Applicant: SK hynix Inc.
    Inventors: Hye Lyoung LEE, Bong Hoon LEE, Chan LIM
  • Patent number: 10403367
    Abstract: Provided herein may be a semiconductor memory device and a method of operating the same. The semiconductor memory device may include a plurality of pages each including a plurality of memory cells, peripheral circuits configured to perform a program operation of a selected page among the plurality of pages and a control logic configured to control the peripheral circuits such that a main program operation is performed on the selected page and, when the main program operation is completed, a compensation program operation is performed on memory cells having lower threshold voltage retention characteristics compared to remaining memory cells, among the memory cells included in the selected page.
    Type: Grant
    Filed: July 17, 2017
    Date of Patent: September 3, 2019
    Assignee: SK hynix Inc.
    Inventors: Hye Lyoung Lee, Bong Hoon Lee, Chan Lim
  • Publication number: 20180190356
    Abstract: Provided herein may be a semiconductor memory device and a method of operating the same. The semiconductor memory device may include a plurality of pages each including a plurality of memory cells, peripheral circuits configured to perform a program operation of a selected page among the plurality of pages and a control logic configured to control the peripheral circuits such that a main program operation is performed on the selected page and, when the main program operation is completed, a compensation program operation is performed on memory cells having lower threshold voltage retention characteristics compared to remaining memory cells, among the memory cells included in the selected page.
    Type: Application
    Filed: July 17, 2017
    Publication date: July 5, 2018
    Applicant: SK hynix Inc.
    Inventors: Hye Lyoung LEE, Bong Hoon LEE, Chan LIM
  • Publication number: 20160217859
    Abstract: A semiconductor device includes a memory block including memory cells coupled to word lines, and an operation circuit configured to perform a program loop on memory cells coupled a selected word line, wherein the operation circuit is configured to change a program permission voltage applied to a bit line of a program target memory cell when a number of times the program loop is performed exceeds a reference number.
    Type: Application
    Filed: April 1, 2016
    Publication date: July 28, 2016
    Inventor: Hye Lyoung LEE
  • Patent number: 9318203
    Abstract: A semiconductor device includes memory cells electrically coupled to word lines. In addition, the semiconductor device includes an operation circuit performing a program loop on memory cells electrically coupled to a selected word line. Further, the operation circuit increases a program permission voltage applied to a bit line of a program target memory cell when a number of times in which the program loop is performed exceeds a reference number.
    Type: Grant
    Filed: July 8, 2014
    Date of Patent: April 19, 2016
    Assignee: SK HYNIX INC.
    Inventor: Hye Lyoung Lee
  • Publication number: 20150221374
    Abstract: A semiconductor device includes memory cells electrically coupled to word lines. In addition, the semiconductor device includes an operation circuit performing a program loop on memory cells electrically coupled to a selected word line. Further, the operation circuit increases a program permission voltage applied to a bit line of a program target memory cell when a number of times in which the program loop is performed exceeds a reference number.
    Type: Application
    Filed: July 8, 2014
    Publication date: August 6, 2015
    Inventor: Hye Lyoung LEE