Patents by Inventor Jonathan W. Wittwer

Jonathan W. Wittwer 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).

  • Microelectromechanical resonator and method for fabrication
    Patent number: 7652547
    Abstract: A method is disclosed for the robust fabrication of a microelectromechanical (MEM) resonator. In this method, a pattern of holes is formed in the resonator mass with the position, size and number of holes in the pattern being optimized to minimize an uncertainty ?f in the resonant frequency f0 of the MEM resonator due to manufacturing process variations (e.g. edge bias). A number of different types of MEM resonators are disclosed which can be formed using this method, including capacitively transduced Lamé, wineglass and extensional resonators, and piezoelectric length-extensional resonators.
    Type: Grant
    Filed: November 12, 2008
    Date of Patent: January 26, 2010
    Assignee: Sandia Corporation
    Inventors: Jonathan W. Wittwer, Roy H. Olsson
  • Microelectromechanical resonator and method for fabrication
    Patent number: 7616077
    Abstract: A method is disclosed for the robust fabrication of a microelectromechanical (MEM) resonator. In this method, a pattern of holes is formed in the resonator mass with the position, size and number of holes in the pattern being optimized to minimize an uncertainty ?f in the resonant frequency f0 of the MEM resonator due to manufacturing process variations (e.g. edge bias). A number of different types of MEM resonators are disclosed which can be formed using this method, including capacitively transduced Lamé, wineglass and extensional resonators, and piezoelectric length-extensional resonators.
    Type: Grant
    Filed: March 22, 2007
    Date of Patent: November 10, 2009
    Assignee: Sandia Corporation
    Inventors: Jonathan W. Wittwer, Roy H. Olsson