Patents Examined by Alan Wong
  • Patent number: 11025220
    Abstract: An acoustic wave device includes a piezoelectric substrate, interdigital transducer electrodes including a predetermined number of electrode fingers disposed on an upper surface of the substrate, and a dielectric material layer having a first portion and a second portion. The first portion is disposed on the upper surface of the substrate and between the interdigital transducer electrode fingers. The second portion is disposed above the interdigital transducer electrode fingers. The acoustic wave device further includes at least one thermally conductive bridge disposed within the dielectric material layer and contacting upper surfaces of at least two adjacent interdigital transducer electrode fingers to dissipate heat therefrom.
    Type: Grant
    Filed: November 5, 2019
    Date of Patent: June 1, 2021
    Assignee: SKYWORKS SOLUTIONS, INC.
    Inventors: Hironori Fukuhara, Keiichi Maki, Rei Goto
  • Patent number: 11012048
    Abstract: A filter includes: a piezoelectric substrate; a first acoustic wave resonator located on the piezoelectric substrate and including a pair of first reflectors including first grating electrodes and a pair of first comb-shaped electrodes that is located between the first reflectors and includes first electrode fingers; and a second acoustic wave resonator that is connected in series or parallel with the first acoustic wave resonator, is located on the piezoelectric substrate, and includes a pair of second reflectors including second grating electrodes and a pair of second comb-shaped electrodes that is located between the second reflectors and includes second electrode fingers, an average value of duty ratios of the second grating electrodes being different from an average value of duty ratios of the first grating electrodes, an average value of pitches of the second electrode fingers being substantially equal to an average value of pitches of the first electrode fingers.
    Type: Grant
    Filed: November 26, 2019
    Date of Patent: May 18, 2021
    Assignee: TAIYO YUDEN CO., LTD.
    Inventors: Toshimasa Numata, Hitoshi Ebihara, Naoto Kobayashi, Masayuki Kitajima
  • Patent number: 11005448
    Abstract: A film bulk acoustic wave resonator includes a first substrate; a first insulating material layer, formed on the first substrate; a first cavity, formed in the first insulating material layer with an opening facing away from the first substrate; and an acoustic-wave resonant plate, including a first electrode, a piezoelectric oscillation plate, and a second electrode stacked on the first insulating material layer. The piezoelectric oscillation plate is disposed between the first electrode and the first electrode. The first electrode includes a first electrode cavity above the first cavity. The second electrode includes a second cavity above the first cavity. At least a portion of a boundary of the piezoelectric oscillation plate is formed by a boundary of the first electrode cavity and a boundary of the second electrode cavity. The boundary of the piezoelectric oscillation plate has an irregular polygonal shape without having two parallel edges.
    Type: Grant
    Filed: April 24, 2019
    Date of Patent: May 11, 2021
    Assignee: SHANGHAI JADIC OPTOELECTRONICS TECHNOLOGY CO., LTD
    Inventor: Xiaochuan Wang
  • Patent number: 10998604
    Abstract: Disclosed are various embodiments for transmitting energy conveyed in the form of a guided surface-waveguide mode along the surface of a lossy medium such as, e.g., a terrestrial medium by exciting a guided surface waveguide probe.
    Type: Grant
    Filed: March 1, 2019
    Date of Patent: May 4, 2021
    Assignee: CPG Technologies, LLC
    Inventors: James F. Corum, Kenneth L. Corum
  • Patent number: 10998884
    Abstract: An acoustic wave filter includes a series-arm resonator, a first parallel-arm resonator, and a second parallel-arm resonator. The series-arm resonator is disposed on a path connecting first and second input/output terminals. The first parallel-arm resonator is disposed on a path that connects ground with a node, which is located on a path connecting the series-arm resonator with the first input/output terminal. The second parallel-arm resonator is disposed on a path that connects ground with a node, which is located on a path connecting the series-arm resonator with the second input/output terminal. The parallel-arm resonator has a resonant frequency lower than the resonant frequency of the second parallel-arm resonator. The first parallel-arm resonator has an anti-resonant frequency higher than the anti-resonant frequency of the second parallel-arm resonator. The second parallel-arm resonator has the highest resonant frequency of all the parallel-arm resonators.
    Type: Grant
    Filed: May 22, 2019
    Date of Patent: May 4, 2021
    Assignee: MURATA MANUFACTURING CO., LTD.
    Inventor: Akira Michigami
  • Patent number: 10998877
    Abstract: Methods of fabricating acoustic resonators are disclosed. A back surface of a single-crystal piezoelectric plate is bonded to a surface of a substrate. A conductor pattern is formed on the front surface of the piezoelectric plate, the conductor pattern including a plurality of interdigital transducers (IDTs) of a plurality of resonators. A dielectric passivation/tuning layer is formed over the conductor pattern and the front surface of the piezoelectric plate. Electrical measurements are made on at least some of the plurality of resonators. Material is selectively removed from the dielectric passivation/tuning layer in accordance with the electrical measurements.
    Type: Grant
    Filed: August 7, 2020
    Date of Patent: May 4, 2021
    Assignee: Resonant Inc.
    Inventors: Patrick Turner, Ventsislav Yantchev, Robert B. Hammond
  • Patent number: 10979028
    Abstract: An electronic filter includes a plurality of series arm acoustic wave resonators electrically connected in series between an input port and an output port, a plurality of parallel arm acoustic wave resonators electrically connected in parallel and electrically connected on first sides between respective ones of the plurality of series arm acoustic wave resonators and electrically connected on second sides to ground, and at least one additional acoustic wave resonator electrically connected in parallel to one of one of the plurality of series arm acoustic wave resonators or one of the plurality of parallel arm acoustic wave resonators and having a temperature coefficient of frequency (TCF) lower than a TCF of the acoustic wave resonator to which it is electrically connected in parallel.
    Type: Grant
    Filed: April 24, 2019
    Date of Patent: April 13, 2021
    Assignee: SKYWORKS SOLUTIONS, INC.
    Inventors: Tomoya Komatsu, Joji Fujiwara
  • Patent number: 10979020
    Abstract: An acoustic wave filter includes series arm resonators, and a parallel arm resonator provided in a second path connecting a ground and a node connecting the series arm resonators. Each of the series arm resonators includes a piezoelectric body and an interdigital transducer electrode. One of the series arm resonators includes a second adjusting film that adjusts Ksaw. An anti-resonant frequency of the other one of the series arm resonators is higher than an anti-resonant frequency of the one of series arm resonators. An adjusting film that adjusts Ksaw is not provided in the other one of series arm resonators, or when a first adjusting film that adjusts Ksaw is provided in the other one of the series arm resonators, the first adjusting film is thinner than the second adjusting film.
    Type: Grant
    Filed: May 15, 2019
    Date of Patent: April 13, 2021
    Assignee: MURATA MANUFACTURING CO., LTD.
    Inventor: Koji Nosaka
  • Patent number: 10965272
    Abstract: A filter comprises a series unit comprising a plurality of series resonators, a shunt unit comprising a plurality of shunt resonators, connected between the plurality of series resonators and a ground, and a correction unit comprising an inductor unit connected between both ends of at least one of a set of series resonators of the plurality of series resonators and a set of shunt resonators of the plurality of shunt resonators, and an impedance unit connected between the inductor unit and a ground.
    Type: Grant
    Filed: February 21, 2019
    Date of Patent: March 30, 2021
    Assignee: Samsung Electro-Mechanics Co., Ltd.
    Inventors: Hyun Jun Kim, Yoon Sok Park, Sung Tae Kim
  • Patent number: 10958246
    Abstract: An acoustic wave filter includes series arm resonators and parallel arm resonators, which are acoustic wave resonators including IDT electrodes provided on a piezoelectric substrate. The IDT electrodes of the series arm resonators include a first thinned electrode (floating electrode) and the IDT electrodes of the parallel arm resonators include a second thinned electrode (filled electrode).
    Type: Grant
    Filed: May 18, 2020
    Date of Patent: March 23, 2021
    Assignee: MURATA MANUFACTURING CO., LTD.
    Inventor: Koji Miyamoto
  • Patent number: 10951195
    Abstract: An acoustic resonator filter package includes an acoustic resonator including a piezoelectric layer, a first electrode disposed on a first surface of the piezoelectric layer, and a second electrode disposed on a second surface of the piezoelectric layer; a first substrate having an upper surface on which the acoustic resonator is disposed, the first substrate comprising a first coupling member surrounding the acoustic resonator; a filter spaced apart from the acoustic resonator in an upward direction; a second substrate having a lower surface on which the filter is disposed, the second substrate including a second coupling member disposed above the first coupling member; and a connection member connecting the first coupling member and the second coupling member to each other, the connection member being made of a material different from a material of which the first coupling member and the second coupling member are made.
    Type: Grant
    Filed: July 24, 2019
    Date of Patent: March 16, 2021
    Assignee: Samsung Electro-Mechanics Co., Ltd.
    Inventors: Seong Jong Cheon, Jeong Hae Kim
  • Patent number: 10938346
    Abstract: A superconducting input and/or output system employs at least one microwave superconducting resonator. The microwave superconducting resonator(s) may be communicatively coupled to a microwave transmission line. Each microwave superconducting resonator may include a first and a second DC SQUID, in series with one another and with an inductance (e.g., inductor), and a capacitance in parallel with the first and second DC SQUIDs and inductance. Respective inductive interfaces are operable to apply flux bias to control the DC SQUIDs. The second DC SQUID may be coupled to a Quantum Flux Parametron (QFP), for example as a final element in a shift register. A superconducting parallel plate capacitor structure and method of fabricating such are also taught.
    Type: Grant
    Filed: May 11, 2016
    Date of Patent: March 2, 2021
    Assignee: D-WAVE SYSTEMS INC.
    Inventors: Andrew J. Berkley, Loren J. Swenson, Mark H. Volkmann, Jed D. Whittaker, Paul I. Bunyk, Peter D. Spear, Christopher B. Rich
  • Patent number: 10938376
    Abstract: An acoustic wave device 1 includes a piezoelectric substrate 2 including a first surface 2A and a second surface 2B, a support substrate 6 bonded to the second surface 2B of the piezoelectric substrate 2, and a first filter 10a and a second filter 10b a passband of which is higher than that of the first filter, both being on the first surface 2A of the piezoelectric substrate 2. The first filter 10a and the second filter 10b each includes an IDT electrode 3. A thickness of the IDT electrode 3 of the first filter 10a and a thickness of the IDT electrode 3 of second filter 10b are different.
    Type: Grant
    Filed: October 10, 2017
    Date of Patent: March 2, 2021
    Assignee: KYOCERA Corporation
    Inventor: Hiroyuki Tanaka
  • Patent number: 10938377
    Abstract: A surface acoustic wave resonator includes first and second surface acoustic wave resonator connected in series, and a third surface acoustic wave resonator connected in series with the second surface acoustic wave resonator. Each of the first to third surface acoustic wave resonators includes a pair of comb-shaped electrodes in which electrode fingers of one of the comb-shaped electrodes and electrode fingers of the other one of the comb-shaped electrodes are alternately arranged. The second surface acoustic wave resonator has a lower ratio of a width of the electrode fingers to a pitch between the electrode fingers than the first and third surface acoustic wave resonators.
    Type: Grant
    Filed: June 10, 2019
    Date of Patent: March 2, 2021
    Assignee: MURATA MANUFACTURING CO., LTD.
    Inventor: Toru Eihama
  • Patent number: 10916821
    Abstract: Metamaterial waveguides and shielded bridges are employed to improve the scalability and routing of quantum computing circuits. A metamaterial waveguide includes a signal conductor that has a periodic array of lumped element resonators distributed along and electrically coupled to a signal conductor. The periodic array of lumped element resonator pairs defines a bandgap within an operating bandwidth of the waveguide. Qubits can communicate within the operating bandwidth of the waveguide and communications via the waveguide can be controlled by changing a center frequency of the qubits. A shielded bridge is used to cross over high frequency communications and control CPW's in a quantum computing circuit. The shielded bridge includes a signal bridge that is elevated and extends over a separate CPW, and a ground bridge positioned between the signal bridge and the separate CPW.
    Type: Grant
    Filed: March 5, 2019
    Date of Patent: February 9, 2021
    Assignee: CALIFORNIA INSTITUTE OF TECHNOLOGY
    Inventors: Oskar Painter, Seyed Mohammad Mirhosseini Niri, Eun Jong Kim, Alp Sipahigil, Vinicius Thaddeu dos Santos Ferreira, Andrew J. Keller, Mahmoud Kalaee, Michael T. Fang
  • Patent number: 10897235
    Abstract: A system includes a first superconducting wire and a second superconducting wire connected in parallel. The system includes a first current source coupled to the first superconducting wire and configured to supply a first current in response to a trigger event. The system includes a second current source coupled in series with the parallel combination of the first superconducting wire and the second superconducting wire and configured to supply a second current. The superconducting wires are configured to, while receiving the second current, operate in a superconducting state in the absence of the first current. The first superconducting wire is configured to, while receiving the second current, transition to a non-superconducting state in response to the first current. The second superconducting wire is configured to, while receiving the second current, transition to a non-superconducting state in response to the first superconducting wire transitioning to the non-superconducting state.
    Type: Grant
    Filed: August 27, 2019
    Date of Patent: January 19, 2021
    Assignee: PSIQUANTUM CORP.
    Inventors: Faraz Najafi, Syrus Ziai, Qiaodan Jin Stone
  • Patent number: 10892737
    Abstract: A bulk-acoustic wave resonator includes a substrate; a membrane layer forming a cavity with the substrate; a first electrode at least partially disposed on an upper portion of the cavity including an end portion that is thicker than other portions of the first electrode; an insertion layer including a first portion disposed adjacent to from the end portion of the first electrode and a second portion disposed on an upper portion of the first electrode; a piezoelectric layer disposed to cover the insertion layer; and a second electrode disposed on an upper portion of the piezoelectric layer.
    Type: Grant
    Filed: April 19, 2019
    Date of Patent: January 12, 2021
    Assignee: Samsung Electro-Mechanics Co., Ltd.
    Inventors: Won Han, Tae Yoon Kim, Sang Uk Son, Chang Hyun Lim
  • Patent number: 10892536
    Abstract: A microwave device is based on gap waveguide technology, and comprises two conducting layers (101, 102) arranged with a gap there between, and protruding elements (103, 104) arranged in a periodically or quasi-periodically pattern and fixedly connected to at least one of said conducting layers, thereby forming a texture to stop wave propagation in a frequency band of operation in other directions than along intended waveguiding paths. Sets of complementary protruding elements are either each formed in said pattern and arranged in alignment and overlying each other, the complementary protruding elements of each set forming part of the full length of each protruding element of the pattern, or the sets of complementary protruding elements are arranged in an offset complementary arrangement, the protruding elements of one set thereby being arranged in between the protruding elements of the other set.
    Type: Grant
    Filed: September 21, 2016
    Date of Patent: January 12, 2021
    Assignee: GAPWAVES AB
    Inventors: Fangfang Fan, Jian Yang
  • 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
  • Patent number: 10862452
    Abstract: An elastic wave filter device includes a ladder filter that includes series arm resonators and parallel arm resonators. In one series arm resonator in which the acoustic velocity in a first and second edge area is lower than in a central area, each first electrode finger includes a large-width portion having a width larger than in remaining portions in the second edge area, and each second electrode finger includes a large-width portion having a width larger than in remaining portions in the first edge area. In at least one of remaining series arm resonators and the parallel arm resonators, each first and second electrode finger includes a large-width portion having a width larger than in remaining portions in both of the first and second edge areas.
    Type: Grant
    Filed: December 26, 2018
    Date of Patent: December 8, 2020
    Assignee: MURATA MANUFACTURING CO., LTD.
    Inventor: Shinichi Okada