Ferroelectric resonator
    64.
    发明授权

    公开(公告)号:US11605624B2

    公开(公告)日:2023-03-14

    申请号:US16238421

    申请日:2019-01-02

    Abstract: Describe is a resonator that uses ferroelectric (FE) material in a capacitive structure. The resonator includes a first plurality of metal lines extending in a first direction; an array of capacitors comprising ferroelectric material; a second plurality of metal lines extending in the first direction, wherein the array of capacitors is coupled between the first and second plurality of metal lines; and a circuitry to switch polarization of at least one capacitor of the array of capacitors. The switching of polarization regenerates acoustic waves. In some embodiments, the acoustic mode of the resonator is isolated using phononic gratings all around the resonator using metal lines above and adjacent to the FE based capacitors.

    CAPACITOR WITH EPITAXIAL STRAIN ENGINEERING
    69.
    发明申请

    公开(公告)号:US20200286685A1

    公开(公告)日:2020-09-10

    申请号:US16294811

    申请日:2019-03-06

    Abstract: Described is a ferroelectric based capacitor that reduces non-polar monoclinic phase and increases polar orthorhombic phase by epitaxial strain engineering in the oxide thin film and/or electrodes. As such, both memory window and reliability are improved. The capacitor comprises: a first structure comprising metal, wherein the first structure has a first lattice constant; a second structure comprising metal, wherein the second structure has a second lattice constant; and a third structure comprising ferroelectric material (e.g., oxide of Hf or Zr), wherein the third structure is between and adjacent to the first and second structures, wherein the third structure has a third lattice constant, and wherein the first and second lattice constants are smaller than the third lattice constant.

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