Patents Assigned to Haramachi Semi-Hitachi Ltd.
  • Bidirectional MOS linear switch
    Patent number: 4728825
    Abstract: In a bidirectional linear switch in which two MOS transistors are used with their sources mutually connected, the gates and the substrates of the transistors are also respectively mutually connected and a control signal is applied to the gates. A potential of the polarity such that the substrates are reversely biased to the sources is applied between the substrates and the sources. With this constitution, the linearity of the bidirectional switch is improved.
    Type: Grant
    Filed: May 29, 1986
    Date of Patent: March 1, 1988
    Assignees: Haramachi Semi-Hitachi Ltd., Hitachi Conductor Ltd.
    Inventors: Shigeru Sugayama, Tadaaki Kariya, Tatsuo Shimura, Sigeo Tomita