Patents by Inventor Xiao-Li Feng

Xiao-Li Feng 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).

  • Nano-electro-mechanical systems switches
    Patent number: 8258899
    Abstract: NEMS (Nano-Electro-Mechanical Systems) apparatuses are described. By applying a static electric field, an arm or beam in a NEMS apparatus is made to bend so that one electrical conductor is made to contact another electrical conductor, thereby closing the NEMS apparatus. Some apparatus embodiments make use of electrostatic coupling to cause the arm or beam to bend, and some apparatus embodiments make use of piezoelectric materials to cause the arm or beam to bend. Other embodiments are described and claimed.
    Type: Grant
    Filed: November 14, 2007
    Date of Patent: September 4, 2012
    Assignee: California Institute of Technology
    Inventors: Xiao-Li Feng, Rassul B. Karabalin, John Sequoyah Aldridge, Michael L. Roukes
  • Nano-electro-mechanical systems switches
    Publication number: 20110094861
    Abstract: NEMS (Nano-Electro-Mechanical Systems) apparatuses are described. By applying a static electric field, an arm or beam in a NEMS apparatus is made to bend so that one electrical conductor is made to contact another electrical conductor, thereby closing the NEMS apparatus. Some apparatus embodiments make use of electrostatic coupling to cause the arm or beam to bend, and some apparatus embodiments make use of piezoelectric materials to cause the arm or beam to bend. Other embodiments are described and claimed.
    Type: Application
    Filed: November 14, 2007
    Publication date: April 28, 2011
    Inventors: Xiao-Li Feng, Rassul B. Karablin, John Sequoyah Aldridge, Michael L. Roukes
  • Ultra-high frequency self-sustaining oscillators, coupled oscillators, voltage-controlled oscillators, and oscillator arrays based on vibrating nanoelectromechanical resonators
    Patent number: 7724103
    Abstract: A self-sustaining ultra-high frequency oscillator and method enable the ability to oscillate and output a signal. A balanced bridge circuit is utilized to null an embedding background response. A first vibrating nanoelectromechanical (NEMS) beam resonator is part of one of the branches of the balanced bridge circuit and determines the frequency of the oscillator's output signal. A feedback loop establishes and sets oscillation conditions of the oscillator's signal. Further, the feedback loop connects an output of the first resonator to an input of the balanced bridge circuit.
    Type: Grant
    Filed: February 13, 2008
    Date of Patent: May 25, 2010
    Assignee: California Institute of Technology
    Inventors: Xiao-Li Feng, Christopher J. White, Seyed Ali Hajimiri, Michael L. Roukes