Patents by Inventor Tadao Dengo

Tadao Dengo 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 high resistance to electrostatic and electromagnetic induction using a complementary shield pattern
    Patent number: 4796084
    Abstract: A semiconductor device is disclosed with a conductive on-chip shield film formed on its surface. The on-chip shield film is patterned in a manner substantially complementary to the pattern of the wiring layer of the semiconductor device so that the shield film does not cover portions of the semiconductor device which are covered by the wiring-pattern layer. In this manner, the on-chip shield film of the semiconductor device provides high resistance to electrostatic and electromagnetic induction while maintaining the ability of the device to withstand changes in ambient temperature.
    Type: Grant
    Filed: May 12, 1986
    Date of Patent: January 3, 1989
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Keiji Kamasaki, Tadao Dengo, Ikuo Fukuda, Hideaki Motojima