Patents by Inventor Pen-Li Yu

Pen-Li Yu 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).

  • Publication number: 20210058061
    Abstract: A piezoelectric structure is disclosed which includes a single crystal having piezoelectric coefficients d31 and d32 of opposite magnitude, such that when an alternating electric field is applied in the Z direction, the piezoelectric structure expands in one of the X and Y directions and contracts in the other of the X and Y direction, a first electrode coupled to the single crystal, and a second electrode coupled to the single crystal, wherein the alternating electric field is input to the single crystal through the first and second electrodes.
    Type: Application
    Filed: August 20, 2019
    Publication date: February 25, 2021
    Applicant: Purdue Research Foundation
    Inventors: Sunil A. Bhave, Pen-Li Yu
  • Patent number: 10886888
    Abstract: A bulk acoustic wave (BAW) resonator is disclosed. The BAW resonator includes: a lower electrode; a piezoelectric layer disposed over the lower electrode; and an upper electrode over the piezoelectric layer. An opening having a first area exists in and extends completely through the upper electrode. The BAW resonator also includes a substrate disposed below the lower electrode; a cavity; and a pillar disposed in the cavity and extending to contact a portion of the lower electrode disposed beneath the opening. The pillar has a second area that is less than the first area. There are no electrical connections that extend across the opening from one side to another.
    Type: Grant
    Filed: July 25, 2019
    Date of Patent: January 5, 2021
    Assignee: Avago Technologies International Sales Pte. Limited
    Inventors: Brice Ivira, Chris Kirkendall, Pen Li Yu, Sormeh Setoodeh, David Albert Feld
  • Publication number: 20190348963
    Abstract: A bulk acoustic wave (BAW) resonator is disclosed. The BAW resonator includes: a lower electrode; a piezoelectric layer disposed over the lower electrode; and an upper electrode over the piezoelectric layer. An opening having a first area exists in and extends completely through the upper electrode. The BAW resonator also includes a substrate disposed below the lower electrode; a cavity; and a pillar disposed in the cavity and extending to contact a portion of the lower electrode disposed beneath the opening. The pillar has a second area that is less than the first area. There are no electrical connections that extend across the opening from one side to another.
    Type: Application
    Filed: July 25, 2019
    Publication date: November 14, 2019
    Inventors: Brice Ivira, Chris Kirkendall, Pen Li Yu, Sormeh Setoodeh, David Albert Feld
  • Patent number: 10444431
    Abstract: A reticulated resonator includes: a reticulated substrate that includes: a substrate frame; and a phononic structure in mechanical communication with the substrate frame and including a plurality of unit members arranged in a two-dimensional array; and a membrane disposed on the reticulated substrate.
    Type: Grant
    Filed: January 14, 2016
    Date of Patent: October 15, 2019
    Assignee: NATIONAL INSTITUTE OF STANDARDS AND TECHNOLOGY
    Inventors: Raymond W. Simmonds, Katarina Cicak, Cindy A. Regal, Pen-Li Yu, Yeghishe Tsaturyan, Thomas P. Purdy, Nir S. Kampel
  • Publication number: 20160211828
    Abstract: A reticulated resonator includes: a reticulated substrate that includes: a substrate frame; and a phononic structure in mechanical communication with the substrate frame and including a plurality of unit members arranged in a two-dimensional array; and a membrane disposed on the reticulated substrate.
    Type: Application
    Filed: January 14, 2016
    Publication date: July 21, 2016
    Inventors: Raymond W. Simmonds, Katarina Cicak, Cindy A. Regal, Pen-Li Yu, Yeghishe Tsaturyan, Thomas P. Purdy, Nir S. Kampel