Patents by Inventor ZENGBO SHI

ZENGBO SHI 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).

  • Write-tracking circuit for memory
    Patent number: 9830978
    Abstract: A write tracking circuit includes a dummy memory cell coupled to a first dummy bit line, a second dummy bit line, and a dummy word line, a logic operation unit coupled to the dummy word line and to the first dummy bit line and configured to output a write feedback signal based on a logic operation of a signal on the dummy word line and a signal on the first dummy bit line, and a delay unit coupled to the dummy memory cell at a storage node. The write tracking circuit provides a correct feedback signal to the clock generation module to ensure normal operation of the peripheral circuit, when a data write operation to the dummy memory cell failed.
    Type: Grant
    Filed: November 22, 2016
    Date of Patent: November 28, 2017
    Assignees: Semiconductor Manufacturing International (Shanghai) Corporation, Semiconductor Manufacturing International (Beijing) Corporation
    Inventors: Wei Fang, Zengbo Shi
  • WRITE-TRACKING CIRCUIT FOR MEMORY
    Publication number: 20170287552
    Abstract: A write tracking circuit includes a dummy memory cell coupled to a first dummy bit line, a second dummy bit line, and a dummy word line, a logic operation unit coupled to the dummy word line and to the first dummy bit line and configured to output a write feedback signal based on a logic operation of a signal on the dummy word line and a signal on the first dummy bit line, and a delay unit coupled to the dummy memory cell at a storage node. The write tracking circuit provides a correct feedback signal to the clock generation module to ensure normal operation of the peripheral circuit, when a data write operation to the dummy memory cell failed.
    Type: Application
    Filed: November 22, 2016
    Publication date: October 5, 2017
    Inventors: WEI FANG, ZENGBO SHI