Patents by Inventor Yasutaka Tsuji

Yasutaka Tsuji 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 making a semiconductor device
    Patent number: 4063973
    Abstract: A non-monocrystalline semiconductor layer which contains predetermined impurities is disposed on a semiconductor substrate. Then, on this semiconductor layer an oxide layer is formed which contains the same type impurities as in the semiconductor layer. The device is then heated at a high temperature, thus causing the impurities to diffuse into the semiconductor substrate and form impurity diffused regions. Suitable electrodes are deposited on the impurity diffused regions.
    Type: Grant
    Filed: November 4, 1976
    Date of Patent: December 20, 1977
    Assignee: Tokyo Shibaura Electric Co., Ltd.
    Inventors: Kei Kirita, Yasutaka Tsuji, Takahiko Moriya