Patents Assigned to Skywork Solutions, Inc.
  • Patent number: 12368430
    Abstract: A method of forming an acoustic wave device is disclosed. The method can include providing a structure having a support substrate that includes a first substrate portion, a second substrate portion, and a third substrate portion between the first portion and the second portion, a piezoelectric layer that includes a first portion over the first substrate portion and a second portion over the second substrate portion, a first interdigital transducer electrode on the first portion of the piezoelectric layer, and a second interdigital transducer electrode on the second portion of the piezoelectric layer. the method can also include etching at least a portion of the piezoelectric layer such that a region over the third substrate portion is free from the piezoelectric layer.
    Type: Grant
    Filed: June 23, 2022
    Date of Patent: July 22, 2025
    Assignee: Skyworks Solutions, Inc.
    Inventors: Rei Goto, Hironori Fukuhara
  • Patent number: 12368431
    Abstract: An acoustic wave filter includes a piezoelectric layer. A first acoustic wave device includes a portion of the piezoelectric layer and a first multi-layer interdigital transducer electrode disposed over the first portion of the piezoelectric layer. Additional acoustic wave devices are coupled to the first acoustic wave device, the additional acoustic wave devices including a second portion of the piezoelectric layer and a plurality of multi-layer interdigital transducer electrodes disposed over the second portion of the piezoelectric layer. At least one of the plurality of multi-layer interdigital transducer electrodes includes a layer that is thinner than a corresponding layer of the same material of the first multi-layer interdigital transducer electrode of the first acoustic wave device.
    Type: Grant
    Filed: February 16, 2022
    Date of Patent: July 22, 2025
    Assignee: Skyworks Solutions, Inc.
    Inventors: Benjamin Paul Abbott, Gong Bin Tang, Rei Goto, Keiichi Maki
  • Patent number: 12362776
    Abstract: Aspects of this disclosure relate to a radio frequency system with tunable notch filtering. The radio frequency system includes a first tunable filter and a second tunable filter. The first tunable filter is coupled between an output of a power amplifier and a radio frequency switch. The second tunable filter includes mutually coupled inductors and a tunable impedance circuit electrically connected to at least one of the mutually coupled inductors. The second tunable filter is coupled between an antenna switch and an antenna node. Related methods and wireless communication devices are also disclosed.
    Type: Grant
    Filed: June 8, 2023
    Date of Patent: July 15, 2025
    Assignee: Skyworks Solutions, Inc.
    Inventors: Fei Jia, Joshua Kawika Ellis, Kun Chen, Shayan Farahvash, Haisu Ju, Haibo Cao
  • Patent number: 12363931
    Abstract: This disclosure relates to bipolar transistors, such as heterojunction bipolar transistors, having increased collector thickness for improved ruggedness. In some embodiments, the collector thickness can be above 1.1 microns. The collector can have at least one doping concentration grading. The collector can have a high doping concentration at a junction between the collector and the sub-collector, such as at the high end of the grading. In some embodiments, the high doping concentration can be above about 9×1016 cm?3. The collector can include a region with high doping concentration adjacent the base. The collector can include a discontinuity in the doping concentration, such as at the low end of the grading. Such bipolar transistors can be implemented, for example, in power amplifiers.
    Type: Grant
    Filed: June 29, 2022
    Date of Patent: July 15, 2025
    Assignee: Skyworks Solutions, Inc.
    Inventors: Kai Hay Kwok, Cristian Cismaru, Andre G. Metzger, Guoliang Zhou
  • Patent number: 12362763
    Abstract: In some embodiments, an analog-to-digital converter (ADC) architecture can be implemented to process a signal from a charge output sensor. The ADC architecture can include a summing node for receiving a sensor signal from the charge output sensor, and an output node implemented to provide a digital signal representative of the sensor signal. The ADC architecture can further include a charge amplifier implemented to receive an analog signal from the summing node as an input analog signal and generate an output analog signal with a gain, and an ADC circuit implemented to generate the digital signal based on the output analog signal from the charge amplifier. The ADC architecture can further include a feedback circuit implemented between the output node and the summing node.
    Type: Grant
    Filed: March 3, 2023
    Date of Patent: July 15, 2025
    Assignee: Skyworks Solutions, Inc.
    Inventors: Min Gyu Kim, Joseph Garrett Hamilton, Timir Nandi, Barkat A. Wani, Praveen Kumar Venkatachala, Wai Laing Lee, Michael Jon Wurtz, Humberto Campanella-Pineda
  • Patent number: 12356686
    Abstract: Devices and methods for switch body connections to achieve soft breakdown. In some embodiments, a radio-frequency switching device can include an assembly of source, gate, and drain implemented on an active region, a first body contact implemented at a first end of the assembly, and a second body contact implemented at a second end of the assembly. The second end can be distal from the first end along a width of the radio-frequency switching device.
    Type: Grant
    Filed: April 19, 2024
    Date of Patent: July 8, 2025
    Assignee: Skyworks Solutions, Inc.
    Inventors: Ambarish Roy, Guillaume Alexandre Blin, Nuttapong Srirattana
  • Patent number: 12348350
    Abstract: A receiver has a sample rate converter that outputs samples of orthogonal frequency division multiplexing symbols. The receiver includes a fast Fourier transform engine that receives the samples and converts them into a plurality of frequency domain sub-carriers. A timing control circuit generates a timing error and controls the sample rate converter to adjust a sample rate of the orthogonal frequency division multiplexing symbols based at least in part on the timing error.
    Type: Grant
    Filed: October 4, 2023
    Date of Patent: July 1, 2025
    Assignee: Skyworks Solutions, Inc.
    Inventors: Alexander Kleinerman, Connor William Blasie, Bradley Arthur Wallace
  • Patent number: 12348252
    Abstract: Systems and methods for magnitude and phase trimming are provided. In one aspect, a radio frequency (RF) trimmer circuit includes an input terminal configured to receive an RF signal, an output terminal configured to output the RF signal, a control input configured to receive a control signal, at least one impedance element, and at least one transistor configured to selectively connect the impedance element onto a path between the input and output terminals. The selectively connecting the impedance element controls at least one of a magnitude trim and a phase trim of the RF signal.
    Type: Grant
    Filed: September 20, 2023
    Date of Patent: July 1, 2025
    Assignee: Skyworks Solutions, Inc.
    Inventors: John Jackson Nisbet, Hassan Sarbishaei, Guillaume Alexandre Blin
  • Patent number: 12341487
    Abstract: A surface acoustic wave device has a piezoelectric substrate having a cut angle (e.g., the piezoelectric angle is cut so as to have a crystal orientation) that allows the surface acoustic wave device to operate as a longitudinally leaky surface acoustic wave device that confines the acoustic wave energy within the piezoelectric substrate and that has less propagation attenuation and a higher electromechanical coupling coefficient k2.
    Type: Grant
    Filed: May 18, 2022
    Date of Patent: June 24, 2025
    Assignee: Skyworks Solutions, Inc.
    Inventors: Rei Goto, Keiichi Maki, Gong Bin Tang
  • Patent number: 12341495
    Abstract: Aspects of this disclosure relate to a multiplexer that includes a switchable acoustic wave filter. The switchable acoustic wave filter can include one or more acoustic wave resonators, switchable acoustic wave resonators, and a switch configurable into at least a first state and a second state. The switch can select a different subset of the switchable acoustic wave resonators to filter a radio frequency signal together with at least the one or more acoustic wave resonators in the first state than in the second state. Related filters, radio frequency systems, wireless communication devices, and methods are also disclosed.
    Type: Grant
    Filed: May 24, 2022
    Date of Patent: June 24, 2025
    Assignee: Skyworks Solutions, Inc.
    Inventors: Weimin Sun, Hai H. Ta, David Richard Pehlke
  • Patent number: 12334880
    Abstract: Apparatus and methods for reconfigurable power amplifiers are disclosed. In certain embodiments, a mobile device includes a transceiver configured to generate a first radio frequency signal of a first frequency band and a second radio frequency signal of a second frequency band, and a front-end system including a push-pull power amplifier configured to selectively amplify one of the first radio frequency signal or the second radio frequency signal based on a band control signal. The push-pull power amplifier includes an input balun, an output balun, and a pair of amplifiers coupled between the input balun and the output balun. The band control signal is operable to control an input capacitance of the pair of amplifiers.
    Type: Grant
    Filed: May 12, 2022
    Date of Patent: June 17, 2025
    Assignee: Skyworks Solutions, Inc.
    Inventors: Kunal Datta, Jinghang Feng, Srivatsan Jayaraman
  • Patent number: 12334885
    Abstract: Bias schemes for cascode power amplifiers are disclosed. In certain embodiments, a power amplifier system includes a cascode power amplifier biased by a first cascode bias voltage and that amplifies a radio frequency input signal. The power amplifier system further includes a bias voltage generation circuit including a first switch, a first cascode transmit mode bias circuit that provides the first cascode bias voltage to the cascode power amplifier through the first switch in a normal power transmit mode, a low power mode bias circuit that overrides the first cascode transmit mode bias circuit to set the first cascode bias voltage in a low power transmit mode, a second switch, and a sleep mode bias circuit that provides the first cascode bias voltage to the cascode power amplifier through the second switch in a sleep mode.
    Type: Grant
    Filed: June 16, 2022
    Date of Patent: June 17, 2025
    Assignee: Skyworks Solutions, Inc.
    Inventors: Bang Li Liang, Guillaume Alexandre Blin, Thomas Obkircher
  • Patent number: 12335687
    Abstract: A method for making a piezoelectric microelectromechanical systems (MEMS) microphone is provided, comprising depositing a piezoelectric film layer onto a substrate; selectively etching the piezoelectric film layer to define lines; removing the substrate to define a cavity; and breaking the piezoelectric film layer along the lines, such that the microphone has at least two cantilevered beams. The piezoelectric microelectromechanical systems (MEMS) microphone is also provided.
    Type: Grant
    Filed: September 19, 2022
    Date of Patent: June 17, 2025
    Assignee: Skyworks Solutions, Inc.
    Inventors: You Qian, Rakesh Kumar, Guofeng Chen
  • Patent number: 12334873
    Abstract: Multi-level envelope tracking systems are disclosed. In certain embodiments, a method of envelope tracking includes amplifying a radio frequency signal using a power amplifier, supplying power to the power amplifier using a power amplifier supply voltage, generating a plurality of delay-controlled regulated voltages based on controlling a delay of a plurality of regulated voltages using a controllable delay circuit, generating a modulator output voltage at a modulator output of a modulator, providing filtering using a first filter coupled between the modulator output and the power amplifier supply voltage, and controlling activation of a plurality of switches of the modulator based on an envelope of the radio frequency signal. The plurality of switches are each coupled between the modulator output and a corresponding one of the plurality of delay-controlled regulated voltages.
    Type: Grant
    Filed: April 25, 2024
    Date of Patent: June 17, 2025
    Assignee: Skyworks Solutions, Inc.
    Inventors: Serge Francois Drogi, Florinel G. Balteanu
  • Patent number: 12334883
    Abstract: A semiconductor-on-insulator die can include a power amplifier configured to amplify a radio frequency input signal having a fundamental frequency. The die can further include an output matching circuit including first and second second-order harmonic rejection circuits configured to resonate at about two times the fundamental frequency and a third order harmonic rejection circuit configured to resonate at about three times the fundamental frequency.
    Type: Grant
    Filed: October 6, 2023
    Date of Patent: June 17, 2025
    Assignee: Skyworks Solutions, Inc.
    Inventors: Yang Liu, Yong Hee Lee, Thomas Obkircher, William J. Domino
  • Patent number: 12334902
    Abstract: Aspects of this disclosure relate to an acoustic wave device with transverse mode suppression. The acoustic wave device can include a piezoelectric layer, an interdigital transducer electrode, a temperature compensation layer, and a multi-layer mass loading strip. The mass loading strip has a density that is higher than a density of the temperature compensation layer. The mass loading strip can overlap edge portions of fingers of the interdigital transducer electrode. The mass loading strip can include a first layer for adhesion and a second layer for mass loading. The mass loading strip can suppress a transverse mode.
    Type: Grant
    Filed: May 25, 2022
    Date of Patent: June 17, 2025
    Assignee: Skyworks Solutions, Inc.
    Inventors: Rei Goto, Koji Seo, Keiichi Maki
  • Patent number: 12334907
    Abstract: Aspects of this disclosure relate to an acoustic wave filter with shunt bulk acoustic wave resonators. In some embodiments, the acoustic wave filter is a band pass filter having a pass band. One of the shunt bulk acoustic wave resonators can contribute to forming an upper edge of the pass band. That shunt bulk acoustic wave resonator can be smaller than another shunt bulk acoustic wave resonator of the acoustic wave filter.
    Type: Grant
    Filed: September 28, 2022
    Date of Patent: June 17, 2025
    Assignee: Skyworks Solutions, Inc.
    Inventors: Tomoya Komatsu, Yiliu Wang, Jinbaek Song
  • Patent number: 12334910
    Abstract: A multimode longitudinally coupled surface acoustic wave resonator is disclosed. The multimode longitudinally coupled surface acoustic wave resonator can include a first interdigital transducer electrode that is positioned over a piezoelectric layer. The first interdigital transducer electrode includes fingers having a first pitch. The multimode longitudinally coupled surface acoustic wave resonator can also include first and second sets of reflectors that are positioned over the piezoelectric layer. The first and second sets of reflectors include a first number of reflectors having a second pitch and a second number of reflectors having a third pitch, respectively. The first pitch is greater than the second pitch. The multimode longitudinally coupled surface acoustic wave resonator can further include a second interdigital transducer electrode that is positioned over the piezoelectric layer and between the first interdigital transducer electrode and the first set of reflectors.
    Type: Grant
    Filed: May 12, 2022
    Date of Patent: June 17, 2025
    Assignee: Skyworks Solutions, Inc.
    Inventors: Tomoya Komatsu, Yiliu Wang
  • Patent number: 12334911
    Abstract: An acoustic wave filter package is disclosed. The acoustic wave filter package can include a first acoustic wave filter, a second acoustic wave filter, and a shared node. The first acoustic wave filter is configured to filter a first radio frequency signal. The first acoustic wave filter has a first shunt resonator. The second acoustic wave filter is configured to filter a second radio frequency signal. The second acoustic wave filter having a second shunt resonator. The first and second shunt resonators are electrically coupled to ground at the shared node.
    Type: Grant
    Filed: September 28, 2022
    Date of Patent: June 17, 2025
    Assignee: Skyworks Solutions, Inc.
    Inventor: Yasuhiro Watanabe
  • Patent number: 12335031
    Abstract: A shared bus time interleaves 1 PPS signal and control and coordination information between a primary timing source and line cards that need to be synchronized using the 1 PPS signals. The shared bus utilizes 1 second frames divided into time slots. The 1 PPS signals are interleaved at predetermined locations in the frame so the delays introduced by interleaving the 1 PPS data in time can be precisely removed. While the bus is not being used for 1 PPS signals, the bus is available to send control and coordination information between the line cards and the primary timing source, avoiding the use of another system and increasing utilization of an available communication path.
    Type: Grant
    Filed: November 16, 2023
    Date of Patent: June 17, 2025
    Assignee: Skyworks Solutions, Inc.
    Inventor: Robert P. Coulter