Patents by Inventor Joo Yun HA

Joo Yun HA 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: 9013072
    Abstract: An internal voltage generation circuit includes a plurality of active driving units configured to supply a plurality of active power supply voltages to a plurality of voltage terminals, respectively, in an active mode, and a common standby driving unit configured to commonly supply a standby power supply voltage to the plurality of voltage terminals in a standby mode.
    Type: Grant
    Filed: October 20, 2011
    Date of Patent: April 21, 2015
    Assignee: Hynix Semiconductor Inc.
    Inventor: Joo-Yun Ha
  • Publication number: 20120261987
    Abstract: An internal voltage generation circuit includes a plurality of active driving units configured to supply a plurality of active power supply voltages to a plurality of voltage terminals, respectively, in an active mode, and a common standby driving unit configured to commonly supply a standby power supply voltage to the plurality of voltage terminals in a standby mode.
    Type: Application
    Filed: October 20, 2011
    Publication date: October 18, 2012
    Inventor: Joo-Yun HA
  • Publication number: 20120008419
    Abstract: A semiconductor memory device includes cells strings including memory cells and coupled between a common source line and bit lines, respectively, a peripheral circuit configured to store data in the memory cells or read data stored in the memory cells, a main voltage supply unit configured to generate operating voltages to be supplied to the peripheral circuit, a precharge voltage supply unit configured to generate a precharge voltage for precharging the bit lines, and a switching circuit configured to transfer the precharge voltage to the common source line and one of the bit lines when a bit line precharge operation is performed.
    Type: Application
    Filed: July 8, 2011
    Publication date: January 12, 2012
    Inventors: Joo Yun HA, Jae Kwan KWON