Patents by Inventor Roy Gilbert
Roy Gilbert 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).
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Patent number: 10812038Abstract: Temperature compensation of an acoustic stack is disclosed. A first temperature compensation layer is disposed between a first surface of a substrate and a second surface of a piezoelectric layer; and a second temperature compensation layer is disposed over the plurality of electrodes. A temperature coefficient of frequency (TCF) of the acoustic stack is approximately zero (0.0) over a frequency range of Band 13.Type: GrantFiled: September 29, 2017Date of Patent: October 20, 2020Assignee: Avago Technologies International Sales Pte. LimitedInventors: Richard C. Ruby, Stephen Roy Gilbert
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Patent number: 10804875Abstract: An apparatus include a device substrate having an upper surface, and a frame layer having an upper surface. The frame layer is disposed over the upper surface of the device substrate, and a first opening exists in the frame layer. The apparatus also includes a seed layer disposed over the device substrate and substantially bounded by the first opening; and a lid layer having an upper surface. The lid layer is disposed over the upper surface of the frame layer. A second opening exists in the lid layer, and the second opening is aligned with the first opening. The apparatus also includes an electrically and thermally conductive pillar disposed in the first opening and the second opening.Type: GrantFiled: September 29, 2017Date of Patent: October 13, 2020Assignee: Avago Technologies International Sales Pte. LimitedInventors: Stephen Roy Gilbert, Martin Franosch, Suresh Sridaran, Andrew Thomas Barfknecht, Richard C. Ruby
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Patent number: 10704971Abstract: Disclosed is a valve actuator configured to determine, during operation of a valve by an alternating current (AC) motor of the valve actuator, an amount of torque produced by the AC motor. A process for measuring the amount of torque produced by the AC motor includes actuating a valve using the AC motor of the valve actuator, measuring, by a microcontroller of the valve actuator and during the actuating of the valve, a time interval between: (i) a first zero crossing of a waveform of AC voltage applied to the AC motor, and (ii) a second zero crossing of a waveform of AC current drawn by the AC motor, and determining, based on the time interval, an amount of torque produced by the AC motor during the actuating.Type: GrantFiled: August 28, 2018Date of Patent: July 7, 2020Assignee: TRI-TEC MANUFACTURING, LLCInventors: Roy Gilbert, Richard Lynn Cordray
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Patent number: 10649039Abstract: A system and method to detect the loss or disruption of one or more phases of a three phase alternating current (AC) power source used in the operation of a valve actuator. The loss of one or more phases of a three phase AC power source may cause a peak in AC power output. While a peak in AC power output may not affect an operation of electronic circuitry, all three phases are often required to safely operate other hardware components, such as an AC motor that is associated with the valve actuator. Therefore, in response to detecting the loss or disruption of at least one phase of a three phase AC power source, this disclosure presents a system and method to inhibit damaging operations such as operating an AC motor associated with a valve actuator, and continuing to operate communications and diagnostic circuitry to report the condition.Type: GrantFiled: March 4, 2019Date of Patent: May 12, 2020Assignee: Tri-Tec Manufacturing, LLCInventors: Richard Lynn Cordray, Michael M. Van Schoiack, Roy Gilbert
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Patent number: 10541667Abstract: A surface acoustic wave (SAW) resonator device includes a semiconductor substrate having a first surface and a second surface. The semiconductor substrate comprises a bulk region, and a surface region. The surface region has a high trap density, and a reduced carrier mobility, compared to the bulk region. A piezoelectric layer, having a first surface and a second surface, is disposed over the semiconductor substrate. A plurality of electrodes are disposed over the first surface of the piezoelectric layer, and the plurality of electrodes are configured to generate surface acoustic waves in the piezoelectric layer. The SAW resonator device also comprises a layer disposed between the first surface of the semiconductor substrate and the second surface of the piezoelectric layer.Type: GrantFiled: August 24, 2016Date of Patent: January 21, 2020Assignee: Avago Technologies International Sales Pte. LimitedInventors: Stephen Roy Gilbert, Richard C. Ruby
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Patent number: 10536133Abstract: A surface acoustic wave (SAW) device includes: a base substrate; a piezo-electric material layer; at least one interdigitated electrode pair disposed on the piezo-electric material layer; and an acoustic wave suppression layer disposed between the piezo-electric material layer and the base substrate, the acoustic wave suppression layer being configured to suppress an acoustic wave propagating in a direction from the piezo-electric material layer to the base substrate.Type: GrantFiled: April 22, 2016Date of Patent: January 14, 2020Assignee: Avago Technologies International Sales Pte. LimitedInventors: Dariusz Burak, Suresh Sridaran, Stephen Roy Gilbert, Richard C. Ruby
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Patent number: 10530327Abstract: A surface acoustic wave (SAW) resonator device is disclosed. The SAW resonator has a piezoelectric layer disposed over a semiconductor substrate. The piezoelectric layer has a first surface and a second surface. The polarization axis (C-axis) of the piezoelectric layer is oriented at an angle relative to the second surface of the piezoelectric layer in a range of approximately 0° to approximately 45°. A layer is disposed between the first surface of the semiconductor substrate and the second surface of the piezoelectric layer.Type: GrantFiled: November 30, 2016Date of Patent: January 7, 2020Assignee: Avago Technologies International Sales Pte. LimitedInventors: Richard C. Ruby, Stephen Roy Gilbert
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Patent number: 10523178Abstract: A surface acoustic wave (SAW) resonator includes a piezoelectric layer disposed over a substrate, and a plurality of electrodes disposed over the first surface of the piezoelectric layer. A layer is disposed between the substrate and the piezoelectric layer. A surface of the layer has a smoothness sufficient to foster atomic bonding between layer and the substrate. A plurality of features provided on a surface of the piezoelectric layer reflects acoustic waves and reduces the incidence of spurious modes in the piezoelectric layer.Type: GrantFiled: September 25, 2015Date of Patent: December 31, 2019Assignee: Avago Technologies International Sales Pte. LimitedInventors: Stephen Roy Gilbert, Richard C. Ruby
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Patent number: 10469056Abstract: A multiplexer device includes a single die, at least three acoustic filters and at least one antenna port arranged on the single die, and a shunt inductance connected between each of the at least one antenna port and ground. Each acoustic filter includes one of a transmit or receive filter corresponding to a predetermined radio frequency band. The at least one antenna port is connected to at least one antenna, respectively, where each of the at least one antenna port is further connected to at least one acoustic filter arranged on the single die, and is configured to pass RF signals corresponding to the predetermined RF band of the connected at least one acoustic filter. The shunt inductance provides impedance matching between each of the at least one antenna port and each of the at least one acoustic filter connect to the at least one antenna port.Type: GrantFiled: June 30, 2017Date of Patent: November 5, 2019Assignee: Avago Technologies International Sales Pte. LimitedInventors: Richard C. Ruby, Seungku Lee, Stephen Roy Gilbert, David Archbold
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Publication number: 20190265310Abstract: A system and method to detect the loss or disruption of one or more phases of a three phase alternating current (AC) power source used in the operation of a valve actuator. The loss of one or more phases of a three phase AC power source may cause a peak in AC power output. While a peak in AC power output may not affect an operation of electronic circuitry, all three phases are often required to safely operate other hardware components, such as an AC motor that is associated with the valve actuator. Therefore, in response to detecting the loss or disruption of at least one phase of a three phase AC power source, this disclosure presents a system and method to inhibit damaging operations such as operating an AC motor associated with a valve actuator, and continuing to operate communications and diagnostic circuitry to report the condition.Type: ApplicationFiled: March 4, 2019Publication date: August 29, 2019Inventors: Richard Lynn Cordray, Michael M. Van Schoiack, Roy Gilbert
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Publication number: 20190103852Abstract: An apparatus include a device substrate having an upper surface, and a frame layer having an upper surface. The frame layer is disposed over the upper surface of the device substrate, and a first opening exists in the frame layer. The apparatus also includes a seed layer disposed over the device substrate and substantially bounded by the first opening; and a lid layer having an upper surface. The lid layer is disposed over the upper surface of the frame layer. A second opening exists in the lid layer, and the second opening is aligned with the first opening. The apparatus also includes an electrically and thermally conductive pillar disposed in the first opening and the second opening.Type: ApplicationFiled: September 29, 2017Publication date: April 4, 2019Inventors: Stephen Roy Gilbert, Martin Franosch, Suresh Sridaran, Andrew Thomas Barfknecht, Richard C. Ruby
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Patent number: 10247787Abstract: A system and method to detect the loss or disruption of one or more phases of a three phase alternating current (AC) power source used in the operation of a valve actuator. The loss of one or more phases of a three phase AC power source may cause a peak in AC power output. While a peak in AC power output may not affect an operation of electronic circuitry, all three phases are often required to safely operate other hardware components, such as an AC motor that is associated with the valve actuator. Therefore, in response to detecting the loss or disruption of at least one phase of a three phase AC power source, this disclosure presents a system and method to inhibit damaging operations such as operating an AC motor associated with a valve actuator, and continuing to operate communications and diagnostic circuitry to report the condition.Type: GrantFiled: May 16, 2018Date of Patent: April 2, 2019Assignee: Tri-Tec Manfacturing, LLCInventors: Richard Lynn Cordray, Michael M. Van Schoiack, Roy Gilbert
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Patent number: 10177735Abstract: An apparatus includes a silicon (Si) substrate having a first surface and a second surface, the silicon substrate having a resistivity at room temperature greater than approximately 1000 ?-cm, and less than approximately 15000 ?-cm; and a piezoelectric layer disposed over the substrate and having a first surface and a second surface. The piezoelectric layer may have a thickness in the range of approximately 0.5 ?m to approximately 30.0 ?m, and is substantially without iron (Fe).Type: GrantFiled: February 29, 2016Date of Patent: January 8, 2019Assignee: Avago Technologies International Sales Pte. LimitedInventors: Richard C. Ruby, Stephen Roy Gilbert, John D. Larson, III
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Patent number: 10177734Abstract: A surface acoustic wave (SAW) resonator includes a piezoelectric layer disposed over a substrate, and a plurality of electrodes disposed over the first surface of the piezoelectric layer. A layer is disposed between the substrate and the piezoelectric layer. A surface of the layer has a smoothness sufficient to foster atomic bonding between layer and the piezoelectric layer. A plurality of features provided on a surface of the substrate reflects acoustic waves and reduce the incidence of spurious modes in the piezoelectric layer.Type: GrantFiled: April 30, 2016Date of Patent: January 8, 2019Assignee: Avago Technologies International Sales Pte. LimitedInventors: Dariusz Burak, Suresh Sridaran, Stephen Roy Gilbert, Richard C. Ruby
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Publication number: 20180364116Abstract: Disclosed is a valve actuator configured to determine, during operation of a valve by an alternating current (AC) motor of the valve actuator, an amount of torque produced by the AC motor. A process for measuring the amount of torque produced by the AC motor includes actuating a valve using the AC motor of the valve actuator, measuring, by a microcontroller of the valve actuator and during the actuating of the valve, a time interval between: (i) a first zero crossing of a waveform of AC voltage applied to the AC motor, and (ii) a second zero crossing of a waveform of AC current drawn by the AC motor, and determining, based on the time interval, an amount of torque produced by the AC motor during the actuating.Type: ApplicationFiled: August 28, 2018Publication date: December 20, 2018Inventors: Roy Gilbert, Richard Lynn Cordray
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Publication number: 20180337657Abstract: An acoustic resonator filter comprises a plurality of resonator structures. One or more of the plurality of resonator structures comprises a substrate having a first surface and a second surface. The resonator structure also comprises a piezoelectric layer disposed over the substrate. The acoustic wave resonator structure also comprises a layer disposed between the first surface of the substrate and the second surface of the piezoelectric layer. The layer has a first surface and a second surface. The layer and the piezoelectric layer have a combined thickness (H) selected so an anti-resonance (AR) condition exists for an undesired bulk vertical shear mode between the first surface of the piezoelectric layer and the second surface of the layer.Type: ApplicationFiled: July 31, 2018Publication date: November 22, 2018Inventors: Richard C. Ruby, Stephen Roy Gilbert, Aleh S. Loseu, Jalal Naghsh Nilchi
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Patent number: 10090822Abstract: A surface acoustic wave (SAW) resonator includes a piezoelectric layer disposed over a substrate, and a plurality of electrodes disposed over the first surface of the piezoelectric layer. A layer is disposed between the substrate and the piezoelectric layer. A surface of the layer has a smoothness sufficient to foster atomic bonding between layer and the piezoelectric layer. A plurality of features provided on a surface of the substrate reflects acoustic waves and reduce the incidence of spurious modes in the piezoelectric layer.Type: GrantFiled: September 25, 2015Date of Patent: October 2, 2018Assignee: Avago Technologies General IP (Singapore) Pte. Ltd.Inventors: Stephen Roy Gilbert, Richard C. Ruby
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Patent number: 10082432Abstract: Disclosed is a valve actuator configured to determine, during operation of a valve by an alternating current (AC) motor of the valve actuator, an amount of torque produced by the AC motor. A process for measuring the amount of torque produced by the AC motor includes actuating a valve using the AC motor of the valve actuator, measuring, by a microcontroller of the valve actuator and during the actuating of the valve, a time interval between: (i) a first zero crossing of a waveform of AC voltage applied to the AC motor, and (ii) a second zero crossing of a waveform of AC current drawn by the AC motor, and determining, based on the time interval, an amount of torque produced by the AC motor during the actuating.Type: GrantFiled: February 12, 2015Date of Patent: September 25, 2018Assignee: Tri-Tee Manufacturing, LLCInventors: Roy Gilbert, Richard Lynn Cordray
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Publication number: 20180259589Abstract: A system and method to detect the loss or disruption of one or more phases of a three phase alternating current (AC) power source used in the operation of a valve actuator. The loss of one or more phases of a three phase AC power source may cause a peak in AC power output. While a peak in AC power output may not affect an operation of electronic circuitry, all three phases are often required to safely operate other hardware components, such as an AC motor that is associated with the valve actuator. Therefore, in response to detecting the loss or disruption of at least one phase of a three phase AC power source, this disclosure presents a system and method to inhibit damaging operations such as operating an AC motor associated with a valve actuator, and continuing to operate communications and diagnostic circuitry to report the condition.Type: ApplicationFiled: May 16, 2018Publication date: September 13, 2018Inventors: Richard Lynn Cordray, Michael M. Van Schoiack, Roy Gilbert
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Publication number: 20180241374Abstract: An acoustic resonator filter comprises a plurality of resonator structures. One or more of the plurality of resonator structures comprises a substrate having a first surface and a second surface. The resonator structure also comprises a piezoelectric layer disposed over the substrate. The SAW resonator structure also comprises a layer disposed between the first surface of the substrate and the second surface of the piezoelectric layer. The layer has a first surface and a second surface. The layer and the piezoelectric layer have a combined thickness (H) selected so an anti-resonance (AR) condition exists for an undesired bulk vertical shear mode between the first surface of the piezoelectric layer and the second surface of the layer.Type: ApplicationFiled: April 15, 2018Publication date: August 23, 2018Inventors: Richard C. Ruby, Stephen Roy Gilbert, Aleh S. Loseu, Jalal Naghsh Nilchi