Patents by Inventor Paul Philip Merchant

Paul Philip Merchant 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).

  • Method of making tunable thin film acoustic resonators
    Patent number: 6507983
    Abstract: An acoustical resonator comprising top and bottom electrodes that sandwich a PZ layer. The resonance frequency of the acoustical resonator may be adjusted after fabrication by utilizing heating elements included in the acoustical resonator and/or by adjusting the thickness of a tuning layer. In the preferred embodiment of the present invention, the electrodes comprise Mo layers. One embodiment of the present invention is constructed on a Si3N4 membrane. A second embodiment of the present invention is constructed such that it is suspended over a substrate on metallic columns. In the preferred embodiment, the electrodes are deposited by a method that minimizes the stress in the electrodes.
    Type: Grant
    Filed: November 13, 1998
    Date of Patent: January 21, 2003
    Assignee: Agilent Technologies, Inc.
    Inventors: Richard C. Ruby, Paul Philip Merchant
  • Method of making tunable thin film acoustic resonators
    Patent number: 5873153
    Abstract: An acoustical resonator comprising top and bottom electrodes that sandwich a PZ layer. The resonance frequency of the acoustical resonator may be adjusted after fabrication by utilizing heating elements included in the acoustical resonator and/or by adjusting the thickness of a tuning layer. In the preferred embodiment of the present invention, the electrodes comprise Mo layers. One embodiment of the present invention is constructed on a Si.sub.3 N.sub.4 membrane. A second embodiment of the present invention is constructed such that it is suspended over a substrate on metallic columns. In the preferred embodiment of the present invention, the electrodes are deposited by a method that minimizes the stress in the electrodes.
    Type: Grant
    Filed: August 27, 1996
    Date of Patent: February 23, 1999
    Assignee: Hewlett-Packard Company
    Inventors: Richard C. Ruby, Paul Philip Merchant