Patents by Inventor Chik P. Yue

Chik P. Yue 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).

  • Apparatus and method for adjusting the substrate impedance of a MOS transistor
    Patent number: 7236044
    Abstract: Method and apparatus for adjusting an impedance of a substrate of a Metal-Oxide-Semiconductor (MOS) transistor by providing a bias voltage and connecting a frequency-selective circuit between the substrate and the bias voltage. The frequency-selective circuit is also provided with at least one reactive element, such as an inductive element or a capacitive element, to obtain a certain frequency-response of the frequency-selective circuit and thus adjusts the substrate impedance of the MOS transistor. The method and apparatus are compatible with standard CMOS technology and applicable to RF switches, including T/R switches for processing high-frequency analog signals.
    Type: Grant
    Filed: October 13, 2004
    Date of Patent: June 26, 2007
    Assignee: The Board of Trustees of the Leland Stanford Junior University
    Inventors: Niranjan Talwalkar, Chik P. Yue, S. Simon Wong