Patents by Inventor Youkou Wakui

Youkou Wakui 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 manufacturing method thereof
    Patent number: 5132758
    Abstract: In a MOSFET of an LDD structure, a side wall is made conductive and connected to a gate through a resistance thereby to cause hot carriers taken into the side wall to be discharged to a gate through the resistance, whereby a channel resistance is prevented from being increased by an effect of carriers accumulated in the side wall. As a result, a reliable MOSFET with a short channel can be provided which is not degraded even if it is used for a long time.
    Type: Grant
    Filed: February 9, 1989
    Date of Patent: July 21, 1992
    Assignee: Hitachi, Ltd.
    Inventors: Masataka Minami, Youkou Wakui, Takahiro Nagano