Patents by Inventor CHANJONG JU

CHANJONG JU 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).

  • Nonvolatile memory device and memory system including nonvolatile memory device that controls the erase speeds of cell strings
    Patent number: 11164636
    Abstract: A nonvolatile memory device includes a memory cell array, an erase body voltage generator, and an erase source voltage generator. The memory cell array includes memory blocks, each of which includes cell strings each including a ground selection transistor, memory cells, and a string selection transistor stacked in a direction perpendicular to a substrate. The erase body voltage generator applies an erase body voltage to the substrate during an erase operation. The erase source voltage generator applies an erase source voltage to a common source line connected with ground selection transistors of the cell strings during the erase operation.
    Type: Grant
    Filed: June 11, 2020
    Date of Patent: November 2, 2021
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Sunyeong Lee, Kyungmoon Kim, Woojae Jang, Chanjong Ju
  • NONVOLATILE MEMORY DEVICE AND MEMORY SYSTEM INCLUDING NONVOLATILE MEMORY DEVICE
    Publication number: 20200303015
    Abstract: A nonvolatile memory device includes a memory cell array, an erase body voltage generator, and an erase source voltage generator. The memory cell array includes memory blocks, each of which includes cell strings each including a ground selection transistor, memory cells, and a string selection transistor stacked in a direction perpendicular to a substrate. The erase body voltage generator applies an erase body voltage to the substrate during an erase operation. The erase source voltage generator applies an erase source voltage to a common source line connected with ground selection transistors of the cell strings during the erase operation.
    Type: Application
    Filed: June 11, 2020
    Publication date: September 24, 2020
    Inventors: SUNYEONG LEE, KYUNGMOON KIM, WOOJAE JANG, CHANJONG JU
  • Nonvolatile memory device and memory system including nonvolatile memory device that controls the erase speeds of cell strings
    Patent number: 10699789
    Abstract: A nonvolatile memory device includes a memory cell array, an erase body voltage generator, and an erase source voltage generator. The memory cell array includes memory blocks, each of which includes cell strings each including a ground selection transistor, memory cells, and a string selection transistor stacked in a direction perpendicular to a substrate. The erase body voltage generator applies an erase body voltage to the substrate during an erase operation. The erase source voltage generator applies an erase source voltage to a common source line connected with ground selection transistors of the cell strings during the erase operation.
    Type: Grant
    Filed: November 1, 2018
    Date of Patent: June 30, 2020
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Sunyeong Lee, Kyungmoon Kim, Woojae Jang, Chanjong Ju
  • NONVOLATILE MEMORY DEVICE AND MEMORY SYSTEM INCLUDING NONVOLATILE MEMORY DEVICE
    Publication number: 20190279719
    Abstract: A nonvolatile memory device includes a memory cell array, an erase body voltage generator, and an erase source voltage generator. The memory cell array includes memory blocks, each of which includes cell strings each including a ground selection transistor, memory cells, and a string selection transistor stacked in a direction perpendicular to a substrate. The erase body voltage generator applies an erase body voltage to the substrate during an erase operation. The erase source voltage generator applies an erase source voltage to a common source line connected with ground selection transistors of the cell strings during the erase operation.
    Type: Application
    Filed: November 1, 2018
    Publication date: September 12, 2019
    Inventors: SUNYEONG LEE, KYUNGMOON KIM, WOOJAE JANG, CHANJONG JU