Combined With Resonant Structure Patents (Class 310/321)
  • Patent number: 11146232
    Abstract: Acoustic filters, resonators and methods are disclosed. An acoustic resonator device includes a substrate having a surface. A back surface of a single-crystal piezoelectric plate is attached to the surface of the substrate except for a portion of the piezoelectric plate forming a diaphragm that spans a cavity in the substrate. A conductor pattern is formed on the front surface of the piezoelectric plate, the conductor pattern including an interdigital transducer (IDTs), interleaved fingers of the IDT disposed on the diaphragm. A pitch of the interleaved fingers and a mark of the interleaved fingers are set in combination such that a resonance frequency of the acoustic resonator is equal to a predetermined target frequency.
    Type: Grant
    Filed: September 23, 2020
    Date of Patent: October 12, 2021
    Assignee: Resonant Inc.
    Inventors: Soumya Yandrapalli, Viktor Plesski, Julius Koskela, Ventsislav Yantchev, Patrick Turner
  • Patent number: 11139797
    Abstract: A compound acoustic wave filter device comprises a support substrate having an including two or more circuit connection pads. An acoustic wave filter includes a piezoelectric filter element and two or more electrodes. The acoustic wave filter is micro-transfer printed onto the support substrate. An electrical conductor electrically connects one or more of the circuit connection pads to one or more of the electrodes.
    Type: Grant
    Filed: December 20, 2018
    Date of Patent: October 5, 2021
    Assignee: X-Celeprint Limited
    Inventors: Christopher Bower, Matthew Meitl, Ronald S. Cok
  • Patent number: 11089413
    Abstract: An external component including a vibratory portion configured to vibrate in response to a sound signal to evoke a hearing percept via bone conduction and including a coupling portion configured to removably attach the external component to an outer surface of skin of a recipient of the hearing prosthesis while imparting deformation to the skin of the recipient at a location of the attachment, in a one-gravity environment, of an amount that is about equal to or equal to that which results from the external component having mass.
    Type: Grant
    Filed: March 29, 2019
    Date of Patent: August 10, 2021
    Assignee: Cochlear Limited
    Inventors: Marcus Andersson, Kristian Asnes, Erik Martin Holgersson
  • Patent number: 11012053
    Abstract: A filter comprising first and second BAW resonators. The first BAW resonator having a piezoelectric layer, located between a top electrode and a bottom electrode, and a dielectric layer located between the bottom electrode and an additional electrode. Wherein the dielectric layer, the bottom electrode and the additional electrode are configured to provide an additional capacitance in the resonator. The second BAW resonator having at least one less electrode than the first BAW resonator.
    Type: Grant
    Filed: December 1, 2017
    Date of Patent: May 18, 2021
    Assignee: Snaptrack, Inc.
    Inventors: Maximilian Schiek, Gilles Moulard, Monika Schmiedgen, Andre Schwobel
  • Patent number: 11005447
    Abstract: Embodiments of the invention include microelectronic devices, resonators, and methods of fabricating the microelectronic devices. In one embodiment, a microelectronic device includes a substrate and a plurality of cavities integrated with the substrate. A plurality of vertically oriented resonators are formed with each resonator being positioned in a cavity. Each resonator includes a crystalline or single crystal piezoelectric film.
    Type: Grant
    Filed: December 22, 2016
    Date of Patent: May 11, 2021
    Assignee: Intel Corporation
    Inventors: Paul B. Fischer, Marko Radosavljevic, Sansaptak Dasgupta, Han Wui Then
  • Patent number: 10992279
    Abstract: A method of manufacture for an acoustic resonator or filter device. In an example, the present method can include forming metal electrodes with different geometric areas and profile shapes coupled to a piezoelectric layer overlying a substrate. These metal electrodes can also be formed within cavities of the piezoelectric layer or the substrate with varying geometric areas. Combined with specific dimensional ratios and ion implantations, such techniques can increase device performance metrics. In an example, the present method can include forming various types of perimeter structures surrounding the metal electrodes, which can be on top or bottom of the piezoelectric layer. These perimeter structures can use various combinations of modifications to shape, material, and continuity. These perimeter structures can also be combined with sandbar structures, piezoelectric layer cavities, the geometric variations previously discussed to improve device performance metrics.
    Type: Grant
    Filed: September 19, 2018
    Date of Patent: April 27, 2021
    Assignee: Akoustis, Inc.
    Inventors: Ramakrishna Vetury, Alexander Y. Feldman, Michael D. Hodge, Art Geiss, Shawn R. Gibb, Mark D. Boomgarden, Michael P. Lewis, Pinal Patel, Jeffrey B. Shealy
  • Patent number: 10979019
    Abstract: A resonator device may include a stacked first resonator and second resonator. The first resonator may be configured to resonate at a first operating frequency, and the second resonator may be configured to resonate at a second operating frequency different from the first operating frequency. The first resonator may include a first electrode and a first active layer arranged over the first electrode. The second resonator may include a second active layer arranged over the first active layer, and a second electrode arranged over the second active layer. The stacked first resonator and second resonator may be coupled to a reconfiguration switch for selectively operating at the first operating frequency or the second operating frequency. One of the first resonator and the second resonator is active upon selection by the reconfiguration switch, while the other resonator is inactive.
    Type: Grant
    Filed: June 11, 2019
    Date of Patent: April 13, 2021
    Assignee: GLOBALFOUNDRIES Singapore Pte. Ltd.
    Inventors: Joan Josep Giner De Haro, Humberto Campanella Pineda
  • Patent number: 10921431
    Abstract: A scanning lidar system includes a fixed frame, a first platform, and a first electro-optic assembly. The first electro-optic assembly includes a first laser source and a first photodetector mounted on the first platform. The scanning lidar system further includes a first flexure assembly flexibly coupling the first platform to the fixed frame, and a drive mechanism configured to scan the first platform with respect to the fixed frame in two dimensions in a plane substantially perpendicular to an optical axis of the lidar system. The scanning lidar system further includes a controller coupled to the drive mechanism. The controller is configured to cause the drive mechanism to scan the first platform in a first direction with a first frequency and in a second direction with a second frequency. The second frequency is similar but not identical to the first frequency.
    Type: Grant
    Filed: May 4, 2018
    Date of Patent: February 16, 2021
    Assignee: Cepton Technologies Inc.
    Inventors: Jun Pei, Mark A. McCord, Roger David Cullumber, Yupeng Cui, Dongyi Liao
  • Patent number: 10903818
    Abstract: Embodiments of the invention include a piezoelectric package integrated filtering device that includes a film stack. In one example, the film stack includes a first electrode, a piezoelectric material in contact with the first electrode, and a second electrode in contact with the piezoelectric material. The film stack is suspended with respect to a cavity of an organic substrate having organic material and the film stack generates an acoustic wave to be propagated across the film stack in response to an application of an electrical signal between the first and second electrodes.
    Type: Grant
    Filed: April 1, 2016
    Date of Patent: January 26, 2021
    Assignee: Intel Corporation
    Inventors: Vijay K. Nair, Feras Eid, Adel A. Elsherbini, Telesphor Kamgaing, Georgios C. Dogiamis, Valluri R. Rao, Johanna M. Swan
  • Patent number: 10900784
    Abstract: A physical quantity sensor includes a pivoting mass having a first plate on one side of a rotation axis, a second plate on the other side of the rotation axis, and a link connecting the first plate to the second plate. The link includes a first slit, a second slit on one side of the first slit toward the first plate, and a third slit on the other side of the first slit toward the second plate. The second and third slits are also deviated toward a peripheral edge of the link with respect to the first slit.
    Type: Grant
    Filed: November 27, 2018
    Date of Patent: January 26, 2021
    Inventor: Ryuji Kihara
  • Patent number: 10897238
    Abstract: Embodiments of the invention include a filtering device that includes a first electrode, a piezoelectric material in contact with the first electrode, and a second electrode in contact with the piezoelectric material. The piezoelectric filtering device expands and contracts laterally in a plane of an organic substrate in response to application of an electrical signal between the first and second electrodes.
    Type: Grant
    Filed: April 1, 2016
    Date of Patent: January 19, 2021
    Assignee: Intel Corporation
    Inventors: Feras Eid, Georgios C. Dogiamis, Valluri R. Rao, Adel A. Elsherbini, Johanna M. Swan, Telesphor Kamgaing, Vijay K. Nair
  • Patent number: 10897003
    Abstract: An opposite-side dielectric ceramic layer is in contact with a first opposite-surface electrode layer and a second opposite-surface electrode layer. A mounting-side dielectric ceramic layer is in contact with a first mounting-surface electrode layer and a second mounting-surface electrode layer. A mounting-side inner electrode layer is separated from the first mounting-surface electrode layer and the second mounting-surface electrode layer by the mounting-side dielectric ceramic layer, disposed on the mounting-side dielectric ceramic layer, extending from a first side-surface electrode layer, and separated from a second side-surface electrode layer. In a cross-sectional view including a lamination direction and a length direction, a position in which the second mounting-surface electrode layer has a maximum thickness is shifted toward a second side surface in the length direction with respect to a position in which the second opposite-surface electrode layer has a maximum thickness.
    Type: Grant
    Filed: July 3, 2019
    Date of Patent: January 19, 2021
    Assignee: NGK Insulators, Ltd.
    Inventor: Masayuki Uetani
  • Patent number: 10857576
    Abstract: There is provided a signaling apparatus including a plurality of LED elements provided in a signal lamp body; a transparent panel provided in the LED elements and configured to transmit outgoing light from the LED elements on a rear side to a front surface to which snow adheres; a frame unit provided on an outer periphery of the panel; and vibration generators provided in the frame unit and configured to vibrate the panel.
    Type: Grant
    Filed: February 20, 2020
    Date of Patent: December 8, 2020
    Assignee: TOSHIBA TEC KABUSHIKI KAISHA
    Inventor: Yasushi Kuribayashi
  • Patent number: 10797676
    Abstract: Acoustic resonators with enhanced boundary conditions are disclosed. In an example aspect, a resonator includes a volume of piezoelectric material including an upper surface and a lower surface. The resonator also includes a bottom electrode extending along a portion of the lower surface of the volume of piezoelectric material. The resonator further includes a multi-layered top electrode extending along a portion of the upper surface of the volume of piezoelectric material. The multi-layered top electrode includes an active region including an interface layer of a first thickness, where the active region overlaps a portion of the bottom electrode. The multi-layered top electrode also includes a frame region including the interface layer of a second thickness, where the second thickness is greater than the first thickness. The multi-layered top electrode further includes an outer region including the interface layer of a third thickness, where the third thickness is less than the second thickness.
    Type: Grant
    Filed: September 15, 2017
    Date of Patent: October 6, 2020
    Assignee: QUALCOMM Incorporated
    Inventors: Oscar Menendez-Nadal, Thomas Bain Pollard, Brian Hal Fisher, Janardan Nath
  • Patent number: 10790797
    Abstract: An acoustic resonator includes: a substrate; a resonance part mounted on the substrate and including resonance part electrodes, the resonance part being configured to generate acoustic waves; a cavity disposed between the resonance part and the substrate; a frame part disposed on at least one electrode among the resonance part electrodes, and being configured to reflect the acoustic waves; and a connection electrode configured to connect the at least one electrode to an external electrode, and having a thickness less than a thickness of the at least one electrode.
    Type: Grant
    Filed: September 23, 2016
    Date of Patent: September 29, 2020
    Assignee: Samsung Electro-Mechanics Co., Ltd.
    Inventors: Won Han, Moon Chul Lee, Jae Chang Lee, Sang Uk Son, Tae Hun Lee
  • Patent number: 10778182
    Abstract: A resonator including a vibrating portion with first and second electrodes and a piezoelectric film formed therebetween. Moreover, a frame surrounds the vibrating portion with a pair of holding units opposite to each other and connecting the vibrating portion with the frame. An extended electrode extends from the holder to the holding unit and either the first or second electrode extends to the holding unit, and is connected to the extended electrode. Furthermore, the resonator includes an electrical resistance value per unit area of the extended electrode that is smaller than an electrical resistance value per unit area of the first electrode or the second electrode that extends to the holding unit.
    Type: Grant
    Filed: September 5, 2017
    Date of Patent: September 15, 2020
    Assignee: MURATA MANUFACTURING CO., LTD.
    Inventors: Daisuke Nakamura, Toshio Nishimura, Ville Kaajakari
  • Patent number: 10770642
    Abstract: A piezoelectric two-dimensional mode resonator suited for high frequency filtering applications, with the ability to simultaneously excite lateral and vertical acoustic waves.
    Type: Grant
    Filed: March 24, 2016
    Date of Patent: September 8, 2020
    Assignee: CARNEGIE MELLON UNIVERSITY
    Inventors: Gianluca Piazza, Cristian Cassella
  • Patent number: 10759035
    Abstract: A suction extraction device has a fan, a suction head, a channel leading from the suction head to the fan, a dust filter and a collection container to hold the dust that has been deposited on the dust filter. The suction head has a tubular cavity that is arranged around the working axis and that serves to accommodate the connection section of the suction drill bit. Arranged in the cavity is a flow sensor that has a sensor surface facing the working axis and that serves to emit a measuring signal that is indicative of the air flow that is striking the sensor surface. An evaluation unit emits an error signal in response to the measuring signal if the measuring signal is lower than a threshold value for at least a prescribed period of time, whereas it suppresses the error signal if the measuring signal exceeds the threshold value during the prescribed period of time. A signaling unit displays the error signal to a user.
    Type: Grant
    Filed: May 13, 2015
    Date of Patent: September 1, 2020
    Assignee: Hilti Aktiengesellschaft
    Inventor: Hans Appel
  • Patent number: 10720900
    Abstract: An acoustic resonator including a substrate, an active vibration region including, sequentially stacked on the substrate, a lower electrode, a piezoelectric layer, and an upper electrode, and a horizontal resonance suppressing part formed from and disposed in the piezoelectric layer, the horizontal resonance suppressing part having piezoelectric physical properties that are different from piezoelectric physical properties of the piezoelectric layer.
    Type: Grant
    Filed: December 27, 2016
    Date of Patent: July 21, 2020
    Assignee: Samsung Electro-Mechanics Co., Ltd.
    Inventors: Tae Hun Lee, Won Han, Moon Chul Lee, Sung Han
  • Patent number: 10695588
    Abstract: Devices and methods for treating human cranial hair loss using extracorporeal acoustic shock waves are disclosed. The shock wave device optionally includes a proximal surface, a plurality of shock wave generators disposed on the surface, and a coupling assembly configured to transmit shock waves to a user's scalp.
    Type: Grant
    Filed: December 27, 2018
    Date of Patent: June 30, 2020
    Assignee: Sonicon Inc.
    Inventors: Da Zhu, Zhuoyu Chen
  • Patent number: 10697320
    Abstract: A gas turbine engine assembly includes a static component and a rotatable component configured to rotate about a central axis of the gas turbine engine assembly relative to the static component. The gas turbine engine assembly further includes a vibration-dampening system configured to dampen vibration of the gas turbine engine assembly.
    Type: Grant
    Filed: January 10, 2018
    Date of Patent: June 30, 2020
    Assignee: Rolls-Royce Corporation
    Inventors: Roy D. Fulayter, Michael G. Meyer
  • Patent number: 10670507
    Abstract: Electromechanical detection device, particularly for gravimetric detection, and method for manufacturing the device. The electromechanical detection device includes a support including a face defining a plane, at least one beam that can move relative to the support, and means of detecting beam displacement, outputting a signal that depends on the displacement. The beam is anchored to the support through an end and is approximately perpendicular to the plane, and the other end of the beam includes at least one reception zone that can receive one or several particles causing or modifying displacement of the beam, in order to determine at least one physical property of the particle(s) from the signal. According to the invention, the detection means are located between the reception zone and the support.
    Type: Grant
    Filed: October 21, 2014
    Date of Patent: June 2, 2020
    Assignee: COMMISSARIAT A L'ENERGIE ATOMIQUE ET AUX ENERGIES ALTERNATIVES
    Inventors: S├ębastien Hentz, Thomas Ernst
  • Patent number: 10659004
    Abstract: A resonance device is provided having a resonator with opposing upper and lower lids. The resonator includes a base, and multiple vibration arms that are connected to a front end of the base so as to extend away from the base. Moreover, a frame surrounds a periphery of the base portion and the vibration arms and one or more holding arms connect the base to the frame. The base, the vibration arms, and the holding arm include a substrate and a temperature characteristics correction layer laminated on the substrate and having a material with a coefficient of thermal expansion different from that of the substrate. The base, the vibration arms, and the holding arm are formed integrally with the substrate and the temperature characteristics correction layer.
    Type: Grant
    Filed: October 3, 2017
    Date of Patent: May 19, 2020
    Assignee: MURATA MANUFACTURING CO., LTD.
    Inventors: Yuichi Goto, Wakana Hirota
  • Patent number: 10644219
    Abstract: A piezoelectric vibration module includes a vibration plate adapted to have one end fixed and the other end not fixed and driven in a vertical direction based on the fixed first end, a first piezoelectric element attached to the top or bottom of the vibration plate and adapted to generate a vibration power when power is applied, and a weight formed in the other end of the top or bottom of the vibration plate and adapted to control the vibration frequency of the piezoelectric vibration module. The first piezoelectric element is attached to the top or bottom of the vibration plate with a predetermined interval from a fixed point at the one end of the vibration plate.
    Type: Grant
    Filed: June 2, 2016
    Date of Patent: May 5, 2020
    Assignee: WISOL CO., LTD.
    Inventors: Jung Rae Noh, Jae Hyung Choi, Yo Sep Choi
  • Patent number: 10611011
    Abstract: The disclosure relates to a hand-held power tool comprising a percussion mechanism, especially a rotary hammer and/or percussion hammer. According to the disclosure, at least one sensor unit comprising at least sensor for at least one mechanical measurement variable is provided for detecting at least one percussion parameter.
    Type: Grant
    Filed: April 3, 2013
    Date of Patent: April 7, 2020
    Assignee: Robert Bosch GmbH
    Inventors: Rainer Nitsche, Thomas Winkler, Christian Bertsch, Achim Duesselberg, Ulli Hoffmann, Helge Sprenger
  • Patent number: 10608166
    Abstract: A method for manufacturing a piezoelectric device that includes a substrate, a piezoelectric layer directly or indirectly supported by the substrate and arranged above the substrate, a heater, and a heater electrode for driving the heater. Moreover, the method includes forming the piezoelectric layer, the heater, and the heater electrode and subjecting the piezoelectric device to heat treatment with heat generated from the heater by driving the heater by feeding electric power to the heater electrode.
    Type: Grant
    Filed: July 5, 2017
    Date of Patent: March 31, 2020
    Assignee: MURATA MANUFACTURING CO., LTD.
    Inventors: Kansho Yamamoto, Takuo Hada
  • Patent number: 10601398
    Abstract: A BAW device includes a substrate, a first reflector, and at least two BAW transducers. The first reflector resides over the substrate and has a plurality of reflector layers. A first BAW transducer resides over a first section of the first reflector, has a first series resonance frequency, and has a first piezoelectric layer of a first thickness between a first top electrode and a first bottom electrode. The second BAW transducer resides over a second section of the first reflector, has a second series resonance frequency that is different than the first series resonance frequency, and has a second piezoelectric layer of a second thickness, which is different than the first thickness, between a second top electrode and a second bottom electrode.
    Type: Grant
    Filed: April 13, 2018
    Date of Patent: March 24, 2020
    Assignee: Qorvo US, Inc.
    Inventors: Dana Jay Sturzebecher, Larry Charles Witkowski, Arthur Donald Ballato, Andrew Arthur Ketterson
  • Patent number: 10594298
    Abstract: A bulk acoustic wave (BAW) filter for passing through electric signals in a preset frequency range is provided. The BAW filter includes: a diamond substrate; a passivation layer formed on the diamond substrate; a first metal layer formed on the passivation layer; a piezoelectric layer formed on the first metal layer; a second metal layer formed on a piezoelectric layer and a metal pad formed on the first metal layer. The metal pad, first metal layer, piezoelectric layer and second metal layer form an electrical path that allows an electrical signal within a preset frequency range to pass therethrough.
    Type: Grant
    Filed: June 19, 2017
    Date of Patent: March 17, 2020
    Assignee: RFHIC Corporation
    Inventor: Won Sang Lee
  • Patent number: 10593860
    Abstract: A piezoelectric device that includes a substrate defining an opening therein; a piezoelectric layer arranged above the substrate such that at least part of the piezoelectric layer extends over the opening and forms a membrane part that is not superimposed with the substrate; a lower electrode arranged below the piezoelectric layer in at least the membrane part; and an upper electrode that is arranged above the piezoelectric layer so as to face at least part of the lower electrode with the piezoelectric layer interposed therebetween in the membrane part. A heater is arranged above the piezoelectric layer so as to be separate from the upper electrode or at least part of the upper electrode doubles as a heater.
    Type: Grant
    Filed: November 18, 2016
    Date of Patent: March 17, 2020
    Assignee: MURATA MANUFACTURING CO., LTD.
    Inventors: Takao Mouri, Kansho Yamamoto
  • Patent number: 10574210
    Abstract: The present disclosure relates to a Wafer-level-packaged Bulk Acoustic Wave (BAW) device, which includes a bottom electrode, a top electrode, a top electrode lead, a piezoelectric layer sandwiched between the bottom and the top electrodes, an enclosure, and an anti-reflective layer (ARL). Herein, an active region for a resonator is formed where the bottom electrode and the top electrode overlap. The top electrode lead is over the piezoelectric layer and extending from the top electrode. The enclosure includes a cap and an outer wall that extends from the cap toward the piezoelectric layer to form a cavity. The top electrode resides in the cavity and a first portion of the outer wall resides over the top electrode lead. The ARL, with a reflectance less than 40% R, is between the first portion of the outer wall and the top electrode lead.
    Type: Grant
    Filed: March 31, 2017
    Date of Patent: February 25, 2020
    Assignee: Qorvo US, Inc.
    Inventors: Buu Quoc Diep, Matthew L. Wasilik
  • Patent number: 10476469
    Abstract: A micro-resonator includes a first electrode positioned on a piezoelectric plate at a first end of the piezoelectric plate, the first electrode including a first set of fingers and a second electrode positioned on the piezoelectric plate at a second end of the piezoelectric plate. The second electrode including a second set of fingers interdigitated with the first set of fingers with an overlapping distance without touching the first set of fingers, the overlapping distance being less than seven-tenths the length of one of the first set of fingers or the second set of fingers. At least one of the first end or the second end of the piezoelectric plate may define a curved shape.
    Type: Grant
    Filed: February 16, 2017
    Date of Patent: November 12, 2019
    Assignee: Board of Trustees of the Univsity of Illinois
    Inventors: Songbin Gong, Yong-Ha Song
  • Patent number: 10468404
    Abstract: An oscillator having a dielectric wave guiding resonant cavity and an oscillator circuit operatively coupled to the dielectric wave guiding resonant cavity having at least one transistor, the two being of a unitary construction.
    Type: Grant
    Filed: March 1, 2018
    Date of Patent: November 5, 2019
    Assignee: BAE Systems Information and Electronic Systems Integration Inc.
    Inventor: Renyuan Wang
  • Patent number: 10416744
    Abstract: A data processing apparatus includes: a plurality of power supplies; a nonvolatile logic configured to be driven with power output from the plurality of power supplies; and a plurality of detection parts configured to detect output states of the plurality of power supplies, wherein the nonvolatile logic performs data processing based on a result of the detection of the plurality of detection parts.
    Type: Grant
    Filed: April 28, 2016
    Date of Patent: September 17, 2019
    Assignee: Rohm Co., Ltd.
    Inventors: Hiromitsu Kimura, Takaaki Fuchikami
  • Patent number: 10365247
    Abstract: A sensor assembly is provided includes a sensor housing, a first sensor, and a second sensor. The sensor housing operatively connected to a body having a first end and a second end. The first sensor is disposed within the sensor housing. The second sensor is disposed within the sensor housing and is spaced apart from the first sensor. The first sensor and the second sensor face towards a first position feature and a second position feature that is disposed on a movable member that is received within the body.
    Type: Grant
    Filed: September 12, 2016
    Date of Patent: July 30, 2019
    Assignee: HAMILTON SUNDSTRAND CORPORATION
    Inventors: Bruce D. Paradise, Leo J. Veilleux
  • Patent number: 10340895
    Abstract: Described herein are reduced-power electronic circuits with wide-band energy recovery using non-interfering topologies. A digital logic driver comprising a pulldown switch, an energy saving component (e.g., inductor) coupled in series with the pulldown switch, and a reference supply connected in series with the energy saving component that is configured to enable the digital logic driver to resonate with a load capacitance and reuse electrical energy at the load capacitance without interfering with a signal path of the digital logic driver.
    Type: Grant
    Filed: May 8, 2018
    Date of Patent: July 2, 2019
    Assignee: Rezonent Corporation
    Inventor: Ignatius Bezzam
  • Patent number: 10312342
    Abstract: An electrical circuit comprising at least two negative capacitance insulators connected in series, one of the two negative capacitance insulators is biased to generate a negative capacitance. One of the negative capacitance insulators may include an air-gap which is part of a nanoelectromechnical system (NEMS) device and the second negative capacitance insulator includes a ferroelectric material. Both of the negative capacitance insulators may be located between the channel and gate of a field effect transistor. The NEMS device may include a movable electrode, a dielectric and a fixed electrode and arranged so that the movable electrode is attached to at least two points and spaced apart from the dielectric and fixed electrode, and the ferroelectric capacitor is electrically connected to either of the electrodes.
    Type: Grant
    Filed: September 5, 2017
    Date of Patent: June 4, 2019
    Assignee: Purdue Research Foundation
    Inventors: Muhammad Ashraful Alam, Muhammad Masuduzzaman, Ankit Jain
  • Patent number: 10291155
    Abstract: A thin vibration wave motor is provided by thinning a friction member of the vibration wave motor. In a vibration wave motor including: a vibrator including a piezoelectric element and a vibration plate; and a friction member including a frictional contact surface to be brought into contact with the vibrator, the vibrator and the friction member being moved relative to each other using vibration generated in the vibrator, the vibration plate includes a flat plate portion to which the piezoelectric element is fixed and projection portions to be brought into contact with the friction member, and the friction member includes at least one reinforcing portion that increases a strength of the friction member along a direction of the relative movement, in a region between the flat plate portion and the friction member.
    Type: Grant
    Filed: April 8, 2016
    Date of Patent: May 14, 2019
    Assignee: CANON KABUSHIKI KAISHA
    Inventor: Ryo Yamasaki
  • Patent number: 10284168
    Abstract: A bulk acoustic wave (BAW) resonator includes: an acoustic reflector disposed in a substrate; a lower electrode disposed over the acoustic reflector; a piezoelectric layer disposed over the lower electrode; and an upper electrode disposed over the piezoelectric layer. A contacting overlap of the lower electrode, the piezoelectric layer and the upper electrode over the acoustic reflector comprising an active area of the BAW resonator. An opening exists in the upper electrode in a region of the BAW resonator susceptible to unacceptable overheating.
    Type: Grant
    Filed: October 27, 2016
    Date of Patent: May 7, 2019
    Assignee: Avago Technologies International Sales Pte. Limited
    Inventors: Brice Ivira, John D. Larson, III, Robert Thalhammer, Klaus-Guenter Oppermann
  • Patent number: 10211388
    Abstract: A piezoelectric device and a method of manufacturing a piezoelectric device are provided. The piezoelectric device includes first and second electrodes disposed on a first surface of a piezoelectric layer; third and fourth electrodes disposed on a second surface of the piezoelectric layer, a first conductor electrically connecting the first and fourth electrodes, and a second conductor electrically connecting the second and third electrodes, in a cross-link with the first conductor.
    Type: Grant
    Filed: July 11, 2014
    Date of Patent: February 19, 2019
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Kyung-hoon Cho, Hwi-yeol Park, Jin S. Heo
  • Patent number: 10193524
    Abstract: A solidly mounted resonator structure includes an multi-layer acoustic reflector structure and a piezoelectric material layer arranged between the first and second electrode structures to form an active region, with the acoustic reflector structure providing enhanced reflection of shear and longitudinal modes of acoustic vibrations. The solidly mounted resonator structure is configured for transduction of an acoustic wave including a longitudinal component and a shear component. The acoustic reflector structure includes multiple sequentially arranged differential acoustic impedance layer units each including a low acoustic impedance material layer in contact with a high acoustic impedance material layer. A frequency corresponding to a minimum transmissivity of a second harmonic resonance of a longitudinal response is substantially matched to a frequency corresponding to a minimum transmissivity of a third harmonic resonance of a shear response.
    Type: Grant
    Filed: October 19, 2016
    Date of Patent: January 29, 2019
    Assignee: QORVO US, INC.
    Inventors: Rick Morton, John Belsick
  • Patent number: 10184876
    Abstract: A particulate matter sensor assembly including a resistance sensor and a resonance sensor. Each one of the resistance sensor and the resonance sensor is configured to measure particulate matter present in engine exhaust.
    Type: Grant
    Filed: September 13, 2016
    Date of Patent: January 22, 2019
    Assignee: DENSO International America, Inc.
    Inventors: Edward Szczepanski, Richard Hankins, Rafal Kaput, Michael Lewis, Masayuki Kobayashi
  • Patent number: 10169635
    Abstract: The present disclosure relates to a display device and a method for fabricating a display device. The display device includes a display layer and a base layer under the display layer. The base layer includes a substrate having a first conductivity type, a well region in a portion of a side of the substrate facing towards the display layer, the well region having a second conductivity type, and an ultrasonic receiver formed in the well region. The ultrasonic receiver includes a first bottom electrode facing towards the substrate, the first bottom electrode including a first semiconductor region formed in the well region, and the first semiconductor region having the first conductivity type, a first top electrode facing towards the display layer, and a first piezoelectric layer formed between the first bottom electrode and the first top electrode.
    Type: Grant
    Filed: January 16, 2017
    Date of Patent: January 1, 2019
    Assignees: BOE TECHNOLOGY GROUP CO., LTD., BEIJING BOE OPTOELECTRONICS TECHNOLOGY CO., LTD.
    Inventors: Yingming Liu, Xue Dong, Xiaochuan Chen, Haisheng Wang, Xiaoliang Ding, Shengji Yang, Weijie Zhao, Changfeng Li, Wei Liu, Pengpeng Wang
  • Patent number: 10161814
    Abstract: A sensor is disposed between a first component and a second component of an electronic device. The sensor includes a first surface having a first dimension and a second surface having a second dimension that is less than the first dimension such that the sensor has a tapered profile.
    Type: Grant
    Filed: May 19, 2016
    Date of Patent: December 25, 2018
    Assignee: Apple Inc.
    Inventors: Steven J. Martisauskas, Richard D. Shuma
  • Patent number: 10003067
    Abstract: At least a connector of a current collecting member that is welded to an electrode plate of an electrode assembly is constituted by a rolled material, and the current collecting member and the electrode assembly are bonded to each other by vibration welding.
    Type: Grant
    Filed: August 27, 2013
    Date of Patent: June 19, 2018
    Assignee: GS YUASA INTERNATIONAL LTD.
    Inventors: Shinsuke Yoshitake, Satoshi Murakami, Tomonori Kishimoto
  • Patent number: 9991867
    Abstract: A piezoelectric acoustic resonator with an adjustable temperature compensation capability is disclosed. The piezoelectric acoustic resonator includes: a piezoelectric acoustic reflection structure, a first electrode, a second electrode, a piezoelectric layer between the first electrode and the second electrode, and a temperature compensation layer; wherein the temperature compensation layer is a single-layer temperature compensation layer formed of SixOy material, or a composite temperature compensation layer formed by stacking material with a positive temperature coefficient of sound velocity and material with a negative temperature coefficient of sound velocity; and the temperature compensation layer is configured to: perform reverse compensation for a temperature frequency shift caused by the first electrode, the piezoelectric layer and the second electrode in the piezoelectric acoustic resonator; wherein x:y is not equal to 1:2.
    Type: Grant
    Filed: August 21, 2013
    Date of Patent: June 5, 2018
    Assignees: ZTE Corporation, TIANJIN University
    Inventors: Hao Zhang, Liangzhen Du, Wei Pang, Jianbang Li, Nianchu Hu, Kai Kang
  • Patent number: 9925570
    Abstract: An open path optical sensing system having an ultrasonic cleaner. The system includes at least one ultrasound transducer which is configured to propagate ultrasonic waves across exposed surfaces of optical components of the optical sensing system. The ultrasonic waves create tiny vibrations on the exposed surfaces of the optical components which clean the surfaces of environmental pollutants and prevent environmental pollutants from accumulating on the surface. The ultrasonic waves may have a frequency that is substantially different than the modulation frequency of a modulated laser light beam that is generated by a laser of the open path optical sensing system. The surfaces of a plurality of optical components may be cleaned by the ultrasonic waves of a single ultrasound transducer. A plurality of ultrasound transducers may propagate waves on a single optical component.
    Type: Grant
    Filed: November 23, 2015
    Date of Patent: March 27, 2018
    Assignee: NEC Corporation
    Inventors: Philip Ji, Ting Wang
  • Patent number: 9910016
    Abstract: An ultrasonic guided wave system for defect detection in a plate-like structure, includes at least one first circumferentially-polarized piezoelectric d15 shear ring element configured to be coupled to a structure. The controller includes a machine readable storage medium and a processor in signal communication with the machine readable storage medium. The processor is configured to cause a pulse generator to pulse the at least first circumferentially-polarized piezoelectric d15 shear ring element such that shear horizontal-type guided wave energy is transmitted in all directions in the plate-like structure, process at least one guided wave signal to identify the presence and location of at least one possible defect in the plate-like structure, and store the guided wave signal and defect detection data in the machine readable storage medium.
    Type: Grant
    Filed: October 8, 2015
    Date of Patent: March 6, 2018
    Assignee: FBS, INC.
    Inventors: Cody J. Borigo, Steven E. Owens, Joseph L. Rose
  • Patent number: 9888323
    Abstract: An electronic apparatus comprises: an exterior exposed to the outside; a piezoelectric vibrating element being transparent and being located inside the exterior; a vibration unit being transparent and including a surface on which the piezoelectric vibrating element is located, the vibration unit being configured to vibrate by the piezoelectric vibrating element to generate a voice; and a display located inside the exterior and overlapping the piezoelectric vibrating element in a plan view.
    Type: Grant
    Filed: January 22, 2016
    Date of Patent: February 6, 2018
    Assignee: KYOCERA Corporation
    Inventors: Yasuhito Kanemaki, Masahiko Hirose
  • Patent number: 9885866
    Abstract: A mirror system including a mirror that is mounted in a manner that permits oscillation, having a coil and at least one first spring that intercouples the mirror and the coil in a way that allows the coil to be placed as a counterweight to the oscillating mirror. Also a corresponding projection device.
    Type: Grant
    Filed: January 21, 2015
    Date of Patent: February 6, 2018
    Assignee: ROBERT BOSCH GMBH
    Inventors: Rainer Straub, Kerrin Doessel, Johannes Baader, Frederic Njikam Njimonzie, Joerg Muchow, Frank Schatz, Helmut Grutzeck, Simon Armbruster, Zoltan Lestyan, Stefan Leidich, Jochen Franz
  • Patent number: 9857279
    Abstract: In some embodiments, an apparatus and a system, as well as a method and an article, may operate to receive a vibration signal having a frequency and a characteristic (e.g., voltage) proportional to the vibration amplitude of a tube in a vibrating tube density sensor. Further activity may include transmitting the density of a fluid flowing through the tube based on the frequency and an elastic modulus of the tube determined by the value of the characteristic. Additional apparatus, systems, and methods are described.
    Type: Grant
    Filed: August 28, 2012
    Date of Patent: January 2, 2018
    Assignee: Halliburton Energy Services, Inc.
    Inventors: Dingding Chen, Li Gao, Michael T. Pelletier, Nestor Javier Rodriguez