Patents by Inventor Seung Duck Kim

Seung Duck 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).

  • Serial flash memory device and precharging method thereof
    Patent number: 7668011
    Abstract: Provided herein is a serial flash memory device and precharging method thereof in which a single local bit-line data is sensed in synchronization with a clock. The method includes precharging two or more local bit-lines in synchronization with a first clock; and disprecharging one of the two local bit-lines in synchronization with a second clock and sensing and amplifying data of the other local bit-line. Accordingly, two precharged local bit-lines are not adjacent to each other, thereby eliminating a coupling noise effect. In addition, the time for performing the precharging operation and the sensing operation is easily secured, compared to the prior precharging method in which corresponding local bit-lines are precharged at every clock.
    Type: Grant
    Filed: September 11, 2006
    Date of Patent: February 23, 2010
    Assignee: Excel Semiconductor Inc.
    Inventors: Hun Woo Kye, Jong Bae Jeong, Seung Duck Kim, Sang Yong Lee, Ki Won Kwon, Seung Keun Lee
  • Serial Flash Memory Device and Precharging Method Thereof
    Publication number: 20080304321
    Abstract: Provided herein is a serial flash memory device and precharging method thereof in which a single local bit-line data is sensed in synchronization with a clock. The method includes precharging two or more local bit-lines in synchronization with a first clock; and disprecharging one of the two local bit-lines in synchronization with a second clock and sensing and amplifying data of the other local bit-line. Accordingly, two precharged local bit-lines are not adjacent to each other, thereby eliminating a coupling noise effect. In addition, the time for performing the precharging operation and the sensing operation is easily secured, compared to the prior precharging method in which corresponding local bit-lines are precharged at every clock.
    Type: Application
    Filed: September 11, 2006
    Publication date: December 11, 2008
    Applicant: EXCEL SEMICONDUCTOR INC.
    Inventors: Hun Woo Kye, Jong Bae Jeong, Seung Duck Kim, Sang Yong Lee, Ki Won Kwon, Seung Keun Lee