Patents by Inventor Chris O'Rourke

Chris O'Rourke 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).

  • Patent number: 12259805
    Abstract: A method includes receiving executable binary code and a machine-readable specification that (1) defines a control flow pattern and a dataflow constraint and (2) is associated with a library function call. A target of a library function call site is retrieved, the library function call site being associated with the library function call and included in the executable binary code. An indication of an execution path in the executable binary code is identified based on the control flow pattern the target. An argument of the library function call is identified based on the dataflow constraint, the target, and the indication of the execution path. The method also includes determining, using solver software, that the argument satisfies the dataflow constraint defined by machine-readable specification. In response to the determining, a signal that indicates that the executable binary code is associated with a predetermined software action is transmitted.
    Type: Grant
    Filed: March 29, 2024
    Date of Patent: March 25, 2025
    Assignee: Affirm Logic Corporation
    Inventors: Yanni Kouskoulas, Ada Lindberg, Arion Lawrence, Chris O'Ferrell
  • Patent number: 12255617
    Abstract: Acoustic resonators, filters and methods of making resonators are disclosed. An acoustic resonator includes a substrate, a piezoelectric plate, and an acoustic Bragg reflector between a surface of the substrate and a back surface of the piezoelectric plate. An interdigital transducer (IDT) on a front surface of the piezoelectric plate includes first and second busbars and a plurality of interleaved fingers extending alternately from the first and second busbars. At least a portion of the first busbar contacts the substrate through an opening in the piezoelectric plate and acoustic Bragg reflector.
    Type: Grant
    Filed: February 2, 2022
    Date of Patent: March 18, 2025
    Assignee: MURATA MANUFACTURING CO., LTD.
    Inventors: Greg Dyer, Chris O'Brien, Neal O. Fenzi, James R. Costa
  • Publication number: 20250088172
    Abstract: A bulk acoustic resonator is provided that includes a substrate having a surface; a piezoelectric layer attached to the surface of the substrate via a bonding oxide (BOX) layer over the surface of the substrate; a conductor pattern including an interdigital transducer (IDT) that has interleaved fingers on a surface of the piezoelectric layer; at least one contact pad disposed at a selected location over the surface of the substrate and that is electrically connected to the IDT; and an electrically isolating layer between the at least one contact pad and the surface of the substrate. Moreover, at least a portion of the piezoelectric layer is absent between the at least one contact pad and the surface of the substrate.
    Type: Application
    Filed: November 26, 2024
    Publication date: March 13, 2025
    Inventors: Albert CARDONA, Chris O'BRIEN, Greg DYER
  • Patent number: 12223061
    Abstract: A non-transitory processor-readable medium stores code representing instructions to be executed by one or more processors, and the instructions include code to cause the one or more processors to (1) receive executable binary code and a specification that defines a constraint and (2) generate a predicate set. The code also causes the one or more processors to identify an argument of a function to be called by the executable binary code, the argument identified based on a map. A constrained predicate set is generated based on the predicate set and the machine-readable specification and, using solver software, the code causes the one or more processors to determine that the argument satisfies the constraint based on the constrained predicate set. A signal that indicates that the executable binary code is associated with a predetermined software action is generated in response to determining the argument satisfies the constraint.
    Type: Grant
    Filed: February 28, 2024
    Date of Patent: February 11, 2025
    Assignee: Affirm Logic Corporation
    Inventors: Yanni Kouskoulas, Ada Lindberg, Arion Lawrence, Chris O'Ferrell
  • Patent number: 12212306
    Abstract: Methods of fabricating filter devices are disclosed. A back surface of a piezoelectric plate having a first thickness is attached to a substrate. The front surface of the piezoelectric plate is selectively etched to thin a portion of the piezoelectric plate from the first thickness to a second thickness less than the first thickness. Cavities are formed in the substrate such that portions of the piezoelectric plate form a plurality of diaphragms spanning respective cavities. A conductor pattern is formed on the front surface. The conductor pattern includes a first interdigital transducer (IDT) with interleaved fingers on a first diaphragm having the first thickness and a second IDT with interleaved fingers on a second diaphragm having the second thickness.
    Type: Grant
    Filed: December 3, 2021
    Date of Patent: January 28, 2025
    Assignee: Murata Manufacturing Co., Ltd.
    Inventors: Chris O'Brien, Andrew Kay, Albert Cardona, Ventsislav Yantchev, Patrick Turner, Robert B. Hammond, Dylan Kelly
  • Patent number: 12199584
    Abstract: An acoustic resonator device is formed using a wafer-to-wafer bonding process by etching recesses into a first surface of a piezoelectric substrate, a depth of the recesses greater than a target piezoelectric membrane thickness; then wafer-to-wafer bonding the first surface of the piezoelectric substrate to a handle wafer using a releasable bonding method. The piezoelectric substrate is then thinned to the target piezoelectric membrane thickness to form a piezoelectric plate and at least one conductor pattern is formed on the thinned piezoelectric plate. The side of the thinned piezoelectric plate having the conductor pattern is bonded to a carrier wafer using a metal-to-metal wafer bonding process and the handle wafer is removed.
    Type: Grant
    Filed: December 9, 2021
    Date of Patent: January 14, 2025
    Assignee: Murata Manufacturing Co., Ltd.
    Inventors: Albert Cardona, Andrew Kay, Chris O'Brien
  • Publication number: 20250015774
    Abstract: An acoustic resonator device is provided that includes a wafer having a wafer surface and a wafer conductor pattern on the wafer surface; a piezoelectric layer having front and back surfaces, a portion of the piezoelectric layer being over a cavity between the wafer and the piezoelectric layer, and the wafer conductor pattern; a device conductor pattern including a first metal layer including an interdigital transducer on the front surface of the piezoelectric layer and facing the wafer, and a second metal layer attached to a portion of the device conductor pattern to provide an electrical connection between the IDT and the wafer conductor pattern. The second metal layer is bonded to the wafer conductor pattern and the piezoelectric layer comprises openings extending therethrough.
    Type: Application
    Filed: September 23, 2024
    Publication date: January 9, 2025
    Inventors: Albert CARDONA, Andrew KAY, Chris O'BRIEN
  • Patent number: 12190128
    Abstract: A method includes receiving, at a processor, (1) machine-readable binary code to be executed at a target processor and (2) a machine-readable control flow pattern that includes one or more library function calls. The method also includes identifying, via the processor, an indication of an execution path in the machine-readable binary code based on the machine-readable control flow pattern. The method also includes transmitting, via the processor, a signal that indicates that the machine-readable binary code includes the one or more library function calls included in the machine-readable control flow pattern.
    Type: Grant
    Filed: October 31, 2023
    Date of Patent: January 7, 2025
    Assignee: Affirm Logic Corporation
    Inventors: Yanni Kouskoulas, Ada Lindberg, Arion Lawrence, Chris O'Ferrell
  • Patent number: 12170513
    Abstract: An acoustic resonator device with low thermal impedance has a substrate and a single-crystal piezoelectric plate having a back surface attached to a top surface of the substrate via a bonding oxide (BOX) layer. An interdigital transducer (IDT) formed on the front surface of the plate has interleaved fingers disposed on the diaphragm, the overlapping distance of the interleaved fingers defining an aperture of the resonator device. Contact pads are formed at selected locations over the surface of the substrate to provide electrical connections between the IDT and contact bumps to be attached to the contact pads. The piezoelectric plate is removed from at least a portion of the surface area of the device beneath each of the contact pads to provide lower thermal resistance between the contact bumps and the substrate.
    Type: Grant
    Filed: October 20, 2021
    Date of Patent: December 17, 2024
    Assignee: Murata Manufacturing Co., Ltd.
    Inventors: Albert Cardona, Chris O'Brien, Greg Dyer
  • Patent number: 12126316
    Abstract: An acoustic resonator device is formed using a wafer-to-wafer bonding process by etching recesses into a first surface of a piezoelectric substrate, a depth of the recesses greater than a target piezoelectric membrane thickness; then wafer-to-wafer bonding the first surface of the piezoelectric substrate to a handle wafer using a releasable bonding method. The piezoelectric substrate is then thinned to the target piezoelectric membrane thickness to form a piezoelectric plate and at least one conductor pattern is formed on the thinned piezoelectric plate. The side of the thinned piezoelectric plate having the conductor pattern is bonded to a carrier wafer using a metal-to-metal wafer bonding process and the handle wafer is removed.
    Type: Grant
    Filed: December 9, 2021
    Date of Patent: October 22, 2024
    Assignee: MURATA MANUFACTURING CO., LTD
    Inventors: Albert Cardona, Andrew Kay, Chris O'Brien
  • Patent number: 12119805
    Abstract: An acoustic resonator device is formed using a sacrificial layer and a front side etched cavity by forming a recess in a silicon substrate with a trap-rich top layer and filling the recess with sacrificial silicon nitride. A bonding oxide (BOX) layer is formed over the trap-rich layer and the sacrificial silicon nitride filled recess and a piezoelectric plate is bonded to the BOX layer. The sacrificial silicon nitride is then removed to form a cavity by using an etchant introduced through holes in the piezoelectric plate and BOX layer without removing the BOX layer from over the cavity.
    Type: Grant
    Filed: December 10, 2021
    Date of Patent: October 15, 2024
    Assignee: MURATA MANUFACTURING CO., LTD.
    Inventors: Albert Cardona, Douglas Jachowski, Chris O'Brien
  • Patent number: 12095443
    Abstract: An acoustic resonator device with low thermal impedance has a substrate and a single-crystal piezoelectric plate having a back surface attached to a top surface of the substrate via a bonding oxide (BOX) layer. An interdigital transducer (IDT) formed on the front surface of the plate has interleaved fingers disposed on the diaphragm, the overlapping distance of the interleaved fingers defining an aperture of the resonator device. Contact pads are formed at selected locations over the surface of the substrate to provide electrical connections between the IDT and contact bumps to be attached to the contact pads. The piezoelectric plate is removed from at least a portion of the surface area of the device beneath each of the contact pads to provide lower thermal resistance between the contact bumps and the substrate.
    Type: Grant
    Filed: October 21, 2021
    Date of Patent: September 17, 2024
    Assignee: Murata Manufacturing Co., Ltd.
    Inventors: Albert Cardona, Chris O'Brien, Greg Dyer
  • Patent number: 12075700
    Abstract: An acoustic resonator device is formed using sacrificial polysilicon pillar by forming a polysilicon pillar on a substrate and depositing a dielectric layer to bury the polysilicon pillar and planarizing the surface of the dielectric layer. A piezoelectric plate is bonded to the planarized surface of the dielectric layer and thinned to a target piezoelectric membrane thickness. At least one conductor pattern is formed on the thinned piezoelectric plate and the polysilicon pillar is then removed using an etchant introduced through holes in the piezoelectric plate to form an air cavity where the pillar was removed.
    Type: Grant
    Filed: December 3, 2021
    Date of Patent: August 27, 2024
    Assignee: MURATA MANUFACTURING CO., LTD.
    Inventors: Albert Cardona, Andrew Kay, Chris O'Brien
  • Publication number: 20240195384
    Abstract: An acoustic resonator is provided that includes a substrate; a first piezoelectric layer having first and second surfaces that oppose each other, with the second surface coupled to the substrate directly or via one or more intermediate layers; a second piezoelectric layer having first and second opposing surfaces, with the first surface coupled to the first surface of the first piezoelectric layer and opposite to the substrate; an etch stop layer disposed between the respective first surfaces of the first and second piezoelectric layers; and first and second interdigital transducers (IDTs) on at least one of the first and second piezoelectric layers, respectively. Moreover, a portion of one of the first and second piezoelectric layers is removed between the second surface of the respective piezoelectric layer and the etch stop.
    Type: Application
    Filed: November 30, 2023
    Publication date: June 13, 2024
    Inventors: Douglas JACHOWSKI, Patrick TURNER, Chris O'BRIEN
  • Patent number: 12003226
    Abstract: An acoustic resonator device with low thermal impedance has a substrate and a single-crystal piezoelectric plate having a back surface attached to a top surface of the substrate via a bonding oxide (BOX) layer. An interdigital transducer (IDT) formed on the front surface of the plate has interleaved fingers disposed on a diaphragm of the plate that is formed over a cavity in the substrate. The piezoelectric plate and the BOX layer are removed from a least a portion of the surface area of the substrate to provide lower thermal resistance between the IDT and the substrate.
    Type: Grant
    Filed: May 12, 2021
    Date of Patent: June 4, 2024
    Assignee: MURATA MANUFACTURING CO., LTD
    Inventors: Greg Dyer, Chris O'Brien, Neal O. Fenzi, James R. Costa
  • Patent number: 11936358
    Abstract: An acoustic resonator device with low thermal impedance has a substrate and a single-crystal piezoelectric plate having a back surface attached to a top surface of the substrate via a bonding oxide (BOX) layer. An interdigital transducer (IDT) formed on the front surface of the plate has interleaved fingers disposed on the diaphragm. The piezoelectric plate and the BOX layer are removed from a least a portion of the surface area of the device to provide lower thermal resistance between the conductor pattern and the substrate.
    Type: Grant
    Filed: March 30, 2021
    Date of Patent: March 19, 2024
    Assignee: MURATA MANUFACTURING CO., LTD.
    Inventors: Greg Dyer, Chris O'Brien, Neal O. Fenzi, James R. Costa
  • Patent number: 11881835
    Abstract: An acoustic resonator device with low thermal impedance has a substrate and a single-crystal piezoelectric plate having a back surface attached to a top surface of the substrate via a bonding oxide (BOX) layer. An interdigital transducer (IDT) formed on the front surface of the plate has interleaved fingers disposed on the diaphragm. The piezoelectric plate and the BOX layer are removed from a least a portion of the surface area of the device to provide lower thermal resistance between the IDT and the substrate.
    Type: Grant
    Filed: April 29, 2021
    Date of Patent: January 23, 2024
    Assignee: Murata Manufacturing Co., Ltd.
    Inventors: Greg Dyer, Chris O'Brien, Neal O. Fenzi, James R. Costa
  • Publication number: 20240007429
    Abstract: A realtime contextual event notification system that ingests events as streams from any authorized entity applies rules to the event streams, determines a context of an end-user who is a recipient of a targeted notification, and provides notifications to the end-user in accordance with the context. The event streams may come from multiple sources and rules may be applied to provide realtime contextual information associated with the end-user.
    Type: Application
    Filed: June 28, 2023
    Publication date: January 4, 2024
    Inventors: Chris Schnurr, Curtis Cunningham, Chris O'Donnell, Senan Burgess
  • Publication number: 20230419953
    Abstract: A real-time contextual event notification system ingests events as streams from any authorized entity, applies rules to the event streams, determines a context of an end-user who is a recipient of a targeted notification, and provides notifications to the end-user in accordance with the context. The event streams may come from multiple sources, and rules may be applied to provide real-time contextual information associated with the end user. One such event stream includes detected linguistic and/or acoustic events during a phone call between two or more persons.
    Type: Application
    Filed: June 22, 2023
    Publication date: December 28, 2023
    Inventors: Chris Schnurr, Paul Workman, Kirsty Meredith, Brendan Killen, Curtis Cunningham, Chris O'Donnell, InĂªs Ferreira, Peter Connolly, Tim Furnell, Assaf Arbely, Duane Wright
  • Publication number: 20230367750
    Abstract: A method of assigning a unique identifier to an entity includes receiving a name of an entity and associated information about the entity; and assigning a globally unique identifier to the entity conforming to both the ISO 8000-115 and the ISO 8000-116 standards The unique identifier includes a domain portion defining a jurisdiction of the entity; a sub-domain portion having an entity type, global registration agency code for the jurisdiction, and a date of registration or formation of the entity; and a registration identifier portion of the entity in the jurisdiction. The method further includes storing the unique identifier along with the name of the entity in a database for fast retrieval of information about the entity.
    Type: Application
    Filed: September 29, 2021
    Publication date: November 16, 2023
    Inventors: Justin MAGRUDER, John TALBURT, Daniel PULLEN, Chris O'NEILL, Stephen SIELOFF