Patents by Inventor Ofer Rozen

Ofer Rozen 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).

  • Variable thickness diaphragm for a wideband robust piezoelectric micromachined ultrasonic transducer (PMUT)
    Patent number: 11800804
    Abstract: A diaphragm for a piezoelectric micromachined ultrasonic transducer (PMUT) is presented having resonance frequency and bandwidth characteristics which are decoupled from one another into independent variables. Portions of at least the piezoelectric material layer and backside electrode layer are removed in a selected pattern to form structures, such as ribs, in the diaphragm which retains stiffness while reducing overall mass. The patterned structure can be formed by additive, or subtractive, fabrication processes.
    Type: Grant
    Filed: August 26, 2022
    Date of Patent: October 24, 2023
    Assignee: THE REGENTS OF THE UNIVERSITY OF CALIFORNIA
    Inventors: Bernhard Boser, David Horsley, Richard Przybyla, Ofer Rozen, Stefon Shelton
  • VARIABLE THICKNESS DIAPHRAGM FOR A WIDEBAND ROBUST PIEZOELECTRIC MICROMACHINED ULTRASONIC TRANSDUCER (PMUT)
    Publication number: 20230053609
    Abstract: A diaphragm for a piezoelectric micromachined ultrasonic transducer (PMUT) is presented having resonance frequency and bandwidth characteristics which are decoupled from one another into independent variables. Portions of at least the piezoelectric material layer and backside electrode layer are removed in a selected pattern to form structures, such as ribs, in the diaphragm which retains stiffness while reducing overall mass. The patterned structure can be formed by additive, or subtractive, fabrication processes.
    Type: Application
    Filed: August 26, 2022
    Publication date: February 23, 2023
    Applicant: THE REGENTS OF THE UNIVERSITY OF CALIFORNIA
    Inventors: Bernhard Boser, David Horsley, Richard Przybyla, Ofer Rozen, Stefon Shelton
  • Variable thickness diaphragm for a wideband robust piezoelectric micromachined ultrasonic transducer (PMUT)
    Patent number: 11462677
    Abstract: A diaphragm for a piezoelectric micromachined ultrasonic transducer (PMUT) is presented having resonance frequency and bandwidth characteristics which are decoupled from one another into independent variables. Portions of at least the piezoelectric material layer and backside electrode layer are removed in a selected pattern to form structures, such as ribs, in the diaphragm which retains stiffness while reducing overall mass. The patterned structure can be formed by additive, or subtractive, fabrication processes.
    Type: Grant
    Filed: November 26, 2019
    Date of Patent: October 4, 2022
    Assignee: THE REGENTS OF THE UNIVERSITY OF CALIFORNIA
    Inventors: Bernhard Boser, David Horsley, Richard Przybyla, Ofer Rozen, Stefon Shelton
  • VARIABLE THICKNESS DIAPHRAGM FOR A WIDEBAND ROBUST PIEZOELECTRIC MICROMACHINED ULTRASONIC TRANSDUCER (PMUT)
    Publication number: 20200194661
    Abstract: A diaphragm for a piezoelectric micromachined ultrasonic transducer (PMUT) is presented having resonance frequency and bandwidth characteristics which are decoupled from one another into independent variables. Portions of at least the piezoelectric material layer and backside electrode layer are removed in a selected pattern to form structures, such as ribs, in the diaphragm which retains stiffness while reducing overall mass. The patterned structure can be formed by additive, or subtractive, fabrication processes.
    Type: Application
    Filed: November 26, 2019
    Publication date: June 18, 2020
    Applicant: THE REGENTS OF THE UNIVERSITY OF CALIFORNIA
    Inventors: Bernhard Boser, David Horsley, Richard Przybyla, Ofer Rozen, Stefon Shelton
  • Variable thickness diaphragm for a wideband robust piezoelectric micromachined ultrasonic transducer (PMUT)
    Patent number: 10522737
    Abstract: A diaphragm for a piezoelectric micromachined ultrasonic transducer (PMUT) is presented having resonance frequency and bandwidth characteristics which are decoupled from one another into independent variables. Portions of at least the piezoelectric material layer and backside electrode layer are removed in a selected pattern to form structures, such as ribs, in the diaphragm which retains stiffness while reducing overall mass. The patterned structure can be formed by additive, or subtractive, fabrication processes.
    Type: Grant
    Filed: April 21, 2016
    Date of Patent: December 31, 2019
    Assignee: THE REGENTS OF THE UNIVERSITY OF CALIFORNIA
    Inventors: Bernhard Boser, David Horsley, Richard Przybyla, Ofer Rozen, Stefon Shelton
  • VARIABLE THICKNESS DIAPHRAGM FOR A WIDEBAND ROBUST PIEZOELECTRIC MICROMACHINED ULTRASONIC TRANSDUCER (PMUT)
    Publication number: 20160315247
    Abstract: A diaphragm for a piezoelectric micromachined ultrasonic transducer (PMUT) is presented having resonance frequency and bandwidth characteristics which are decoupled from one another into independent variables. Portions of at least the piezoelectric material layer and backside electrode layer are removed in a selected pattern to form structures, such as ribs, in the diaphragm which retains stiffness while reducing overall mass. The patterned structure can be formed by additive, or subtractive, fabrication processes.
    Type: Application
    Filed: April 21, 2016
    Publication date: October 27, 2016
    Applicant: THE REGENTS OF THE UNIVERSITY OF CALIFORNIA
    Inventors: Bernhard Boser, David Horsley, Richard Przybyla, Ofer Rozen, Stefon Shelton