Patents by Inventor Hee H. Chang

Hee H. Chang 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).

  • Method of manufacturing a virtual ground split gate nonvolatile memory device
    Patent number: 5536668
    Abstract: The present invention discloses a method of manufacturing a nonvolatile memory device. According to the present invention, in a nonvolatile memory device in which an equal voltage is applied to the control gates formed along both sides of the bit lines, the continuity of the control gates can be enhanced by interconnecting these control gates inside the cell arrays, resulting in a higher integration of the device and a reduction of the production of resistance therein, thereby improving the yield of the device.
    Type: Grant
    Filed: September 8, 1995
    Date of Patent: July 16, 1996
    Assignee: Hyundai Electronics Industries, Co., Ltd.
    Inventors: Jae C. An, Hee H. Chang