Patents by Inventor Chikara TERADA

Chikara TERADA 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 and method for manufacturing semiconductor device
    Patent number: 9786752
    Abstract: A semiconductor device of the present invention is a semiconductor device selectively including a nonvolatile memory cell on a semiconductor substrate, and includes a trench formed in the semiconductor substrate, an element separation portion buried into the trench such that the element separation portion has a projecting part projecting from the semiconductor substrate, the element separation portion defining an active region in first a region for the nonvolatile memory cell of the semiconductor substrate, and a floating gate disposed in the active region such that the floating gate selectively has an overlapping part overlapping the element separation portion, and the floating gate has a shape recessed with respect to the overlapping part.
    Type: Grant
    Filed: February 11, 2014
    Date of Patent: October 10, 2017
    Assignee: ROHM CO., LTD.
    Inventor: Chikara Terada
  • SEMICONDUCTOR DEVICE AND METHOD FOR MANUFACTURING SEMICONDUCTOR DEVICE
    Publication number: 20140284681
    Abstract: A semiconductor device of the present invention is a semiconductor device selectively including a nonvolatile memory cell on a semiconductor substrate, and includes a trench formed in the semiconductor substrate, an element separation portion buried into the trench such that the element separation portion has a projecting part projecting from the semiconductor substrate, the element separation portion defining an active region in first a region for the nonvolatile memory cell of the semiconductor substrate, and a floating gate disposed in the active region such that the floating gate selectively has an overlapping part overlapping the element separation portion, and the floating gate has a shape recessed with respect to the overlapping part.
    Type: Application
    Filed: February 11, 2014
    Publication date: September 25, 2014
    Applicant: ROHM CO., LTD.
    Inventor: Chikara TERADA