Patents by Inventor Byong-Kook Kim

Byong-Kook Kim 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: 8520438
    Abstract: A program method of a nonvolatile memory device includes applying a program voltage to a selected word line, applying a first pass voltage to at least one word line adjacent to the selected word line, applying at least one first middle voltage lower than the first pass voltage but higher than an isolation voltage to at least one word line adjacent to the word line receiving the first pass voltage, applying the isolation voltage to a word line adjacent to the word line receiving the first middle voltage, applying at least one second middle voltage higher than the isolation voltage but lower than a second pass voltage to at least one word line adjacent to the word line receiving the isolation voltage, and applying a second pass voltage to at least one word line adjacent to the word line receiving the second middle voltage.
    Type: Grant
    Filed: September 21, 2011
    Date of Patent: August 27, 2013
    Assignee: Hynix Semiconductor Inc.
    Inventors: Ji-Hyun Seo, Byong-Kook Kim, Sung-Jae Chung
  • Publication number: 20120294087
    Abstract: A program method of a nonvolatile memory device includes applying a program voltage to a selected word line, applying a first pass voltage to at least one word line adjacent to the selected word line, applying at least one first middle voltage lower than the first pass voltage but higher than an isolation voltage to at least one word line adjacent to the word line receiving the first pass voltage, applying the isolation voltage to a word line adjacent to the word line receiving the first middle voltage, applying at least one second middle voltage higher than the isolation voltage but lower than a second pass voltage to at least one word line adjacent to the word line receiving the isolation voltage, and applying a second pass voltage to at least one word line adjacent to the word line receiving the second middle voltage.
    Type: Application
    Filed: September 21, 2011
    Publication date: November 22, 2012
    Inventors: Ji-Hyun SEO, Byong-Kook KIM, Sung-Jae CHUNG
  • Patent number: 7869278
    Abstract: A nonvolatile memory device includes a plurality of strings each of which is configured with a first select transistor, a second select transistor, and a plurality of memory cells connected in series between the first and second select transistors. A common source line is connected to a source of the second select transistor. A metal interconnection is electrically insulated from the common source line, and connected to the source of the second select transistor.
    Type: Grant
    Filed: January 28, 2010
    Date of Patent: January 11, 2011
    Assignee: Hynix Semiconductor Inc.
    Inventor: Byong-Kook Kim
  • Publication number: 20100128533
    Abstract: A nonvolatile memory device includes a plurality of strings each of which is configured with a first select transistor, a second select transistor, and a plurality of memory cells connected in series between the first and second select transistors. A common source line is connected to a source of the second select transistor. A metal interconnection is electrically insulated from the common source line, and connected to the source of the second select transistor.
    Type: Application
    Filed: January 28, 2010
    Publication date: May 27, 2010
    Inventor: Byong-Kook KIM
  • Patent number: 7679958
    Abstract: A nonvolatile memory device includes a plurality of strings each of which is configured with a first select transistor, a second select transistor, and a plurality of memory cells connected in series between the first and second select transistors. A common source line is connected to a source of the second select transistor. A metal interconnection is electrically insulated from the common source line, and connected to the source of the second select transistor.
    Type: Grant
    Filed: June 29, 2007
    Date of Patent: March 16, 2010
    Assignee: Hynix Semiconductor Inc.
    Inventor: Byong-Kook Kim
  • Publication number: 20080158944
    Abstract: A nonvolatile memory device includes a plurality of strings each of which is configured with a first select transistor, a second select transistor, and a plurality of memory cells connected in series between the first and second select transistors. A common source line is connected to a source of the second select transistor. A metal interconnection is electrically insulated from the common source line, and connected to the source of the second select transistor.
    Type: Application
    Filed: June 29, 2007
    Publication date: July 3, 2008
    Inventor: Byong-Kook Kim