Patents by Inventor Wu NAN

Wu NAN 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).

  • SEMICONDUCTOR DEVICE HAVING GATE TRENCH AND MANUFACTURING METHOD THEREOF
    Publication number: 20140227855
    Abstract: Disclosed herein is a semiconductor device that includes a trench formed across active regions and the element isolation regions. A conductive film is formed at a lower portion of the trench, and a cap insulating film is formed at an upper portion of the trench. The cap insulating film has substantially the same planer shape as that of the conductive film.
    Type: Application
    Filed: April 22, 2014
    Publication date: August 14, 2014
    Applicant: Elpida Memory, Inc.
    Inventor: Wu NAN
  • Semiconductor device having gate trench and manufacturing method thereof
    Patent number: 8741755
    Abstract: Disclosed herein is a semiconductor device that includes a trench formed across active regions and the element isolation regions. A conductive film is formed at a lower portion of the trench, and a cap insulating film is formed at an upper portion of the trench. The cap insulating film has substantially the same planer shape as that of the conductive film.
    Type: Grant
    Filed: May 31, 2012
    Date of Patent: June 3, 2014
    Inventor: Wu Nan
  • SEMICONDUCTOR DEVICE HAVING GATE TRENCH AND MANUFACTURING METHOD THEREOF
    Publication number: 20120309165
    Abstract: Disclosed herein is a semiconductor device that includes a trench formed across active regions and the element isolation regions. A conductive film is formed at a lower portion of the trench, and a cap insulating film is formed at an upper portion of the trench. The cap insulating film has substantially the same planer shape as that of the conductive film.
    Type: Application
    Filed: May 31, 2012
    Publication date: December 6, 2012
    Applicant: ELPIDA MEMORY, INC.
    Inventor: Wu NAN