Patents by Inventor Cedric Cassan
Cedric Cassan 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: 11277100Abstract: A multiple-stage amplifier includes a driver stage die and a final stage die. The driver stage die includes a first type of semiconductor substrate (e.g., a silicon substrate), a first transistor, and an integrated portion of an interstage impedance matching circuit. A control terminal of the first transistor is electrically coupled to an RF signal input terminal of the driver stage die, and the integrated portion of the interstage impedance matching circuit is electrically coupled between a current-carrying terminal of the first transistor and an RF signal output terminal of the driver stage die. The second die includes a III-V semiconductor substrate (e.g., a GaN substrate) and a second transistor. A connection, which is a non-integrated portion of the interstage impedance matching circuit, is electrically coupled between the RF signal output terminal of the driver stage die and an RF signal input terminal of the final stage die.Type: GrantFiled: July 24, 2020Date of Patent: March 15, 2022Assignee: NXP USA, Inc.Inventors: Joseph Gerard Schultz, Enver Krvavac, Olivier Lembeye, Cedric Cassan, Kevin Kim, Jeffrey Kevin Jones
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Patent number: 11223326Abstract: A multiple-stage amplifier includes a driver stage die and a final stage die. The driver stage die includes a first type of semiconductor substrate (e.g., a silicon substrate), a first transistor, and an integrated portion of an interstage impedance matching circuit. A control terminal of the first transistor is electrically coupled to an RF signal input terminal of the driver stage die, and the integrated portion of the interstage impedance matching circuit is electrically coupled between a current-carrying terminal of the first transistor and an RF signal output terminal of the driver stage die. The second die includes a III-V semiconductor substrate (e.g., a GaN substrate) and a second transistor. A connection, which is a non-integrated portion of the interstage impedance matching circuit, is electrically coupled between the RF signal output terminal of the driver stage die and an RF signal input terminal of the final stage die.Type: GrantFiled: July 24, 2020Date of Patent: January 11, 2022Assignee: NXP USA, Inc.Inventors: Joseph Gerard Schultz, Enver Krvavac, Olivier Lembeye, Cedric Cassan, Kevin Kim, Jeffrey Kevin Jones
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Patent number: 11050395Abstract: Embodiments of a device and method are disclosed. In an embodiment, an RF amplifier includes first and second RF signal paths having RF input interfaces, RF output interfaces, and corresponding transistors connected between the respective RF input interfaces and RF output interfaces, wherein control terminals of the transistors are connected to the RF input interfaces and current conducting terminals of the transistors are connected to the corresponding RF output interfaces. The RF amplifier including a conductive path between the current conducting terminal of the first transistor and the current conducting terminal of the second transistor, wherein the conductive path includes a first inductance, a second inductance, and a capacitance electrically connected between the first inductance and the second inductance.Type: GrantFiled: December 20, 2019Date of Patent: June 29, 2021Assignee: NXP USA, Inc.Inventors: Jeffrey Kevin Jones, Cedric Cassan, Damien Scatamacchia
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Publication number: 20210135639Abstract: Embodiments of a device and method are disclosed. In an embodiment, an RF amplifier includes first and second RF signal paths having RF input interfaces, RF output interfaces, and corresponding transistors connected between the respective RF input interfaces and RF output interfaces, wherein control terminals of the transistors are connected to the RF input interfaces and current conducting terminals of the transistors are connected to the corresponding RF output interfaces. The RF amplifier including a conductive path between the current conducting terminal of the first transistor and the current conducting terminal of the second transistor, wherein the conductive path includes a first inductance, a second inductance, and a capacitance electrically connected between the first inductance and the second inductance.Type: ApplicationFiled: December 20, 2019Publication date: May 6, 2021Inventors: Jeffrey Kevin Jones, Cedric Cassan, Damien Scatamacchia
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Publication number: 20210013837Abstract: A multiple-stage amplifier includes a driver stage die and a final stage die. The driver stage die includes a first type of semiconductor substrate (e.g., a silicon substrate), a first transistor, and an integrated portion of an interstage impedance matching circuit. A control terminal of the first transistor is electrically coupled to an RF signal input terminal of the driver stage die, and the integrated portion of the interstage impedance matching circuit is electrically coupled between a current-carrying terminal of the first transistor and an RF signal output terminal of the driver stage die. The second die includes a III-V semiconductor substrate (e.g., a GaN substrate) and a second transistor. A connection, which is a non-integrated portion of the interstage impedance matching circuit, is electrically coupled between the RF signal output terminal of the driver stage die and an RF signal input terminal of the final stage die.Type: ApplicationFiled: July 24, 2020Publication date: January 14, 2021Inventors: Joseph Gerard Schultz, Enver Krvavac, Olivier Lembeye, Cedric Cassan, Kevin Kim, Jeffrey Kevin Jones
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Publication number: 20200389130Abstract: A multiple-stage amplifier includes a driver stage die and a final stage die. The driver stage die includes a first type of semiconductor substrate (e.g., a silicon substrate), a first transistor, and an integrated portion of an interstage impedance matching circuit. A control terminal of the first transistor is electrically coupled to an RF signal input terminal of the driver stage die, and the integrated portion of the interstage impedance matching circuit is electrically coupled between a current-carrying terminal of the first transistor and an RF signal output terminal of the driver stage die. The second die includes a III-V semiconductor substrate (e.g., a GaN substrate) and a second transistor. A connection, which is a non-integrated portion of the interstage impedance matching circuit, is electrically coupled between the RF signal output terminal of the driver stage die and an RF signal input terminal of the final stage die.Type: ApplicationFiled: July 24, 2020Publication date: December 10, 2020Inventors: Joseph Gerard Schultz, Enver Krvavac, Olivier Lembeye, Cedric Cassan, Kevin Kim, Jeffrey Kevin Jones
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Patent number: 10763792Abstract: A multiple-stage amplifier includes a driver stage die and a final stage die. The driver stage die includes a first type of semiconductor substrate (e.g., a silicon substrate), a first transistor, and an integrated portion of an interstage impedance matching circuit. A control terminal of the first transistor is electrically coupled to an RF signal input terminal of the driver stage die, and the integrated portion of the interstage impedance matching circuit is electrically coupled between a current-carrying terminal of the first transistor and an RF signal output terminal of the driver stage die. The second die includes a III-V semiconductor substrate (e.g., a GaN substrate) and a second transistor. A connection, which is a non-integrated portion of the interstage impedance matching circuit, is electrically coupled between the RF signal output terminal of the driver stage die and an RF signal input terminal of the final stage die.Type: GrantFiled: October 26, 2018Date of Patent: September 1, 2020Assignee: NXP USA, Inc.Inventors: Joseph Gerard Schultz, Enver Krvavac, Olivier Lembeye, Cedric Cassan, Kevin Kim, Jeffrey Kevin Jones
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Publication number: 20190140598Abstract: A multiple-stage amplifier includes a driver stage die and a final stage die. The driver stage die includes a first type of semiconductor substrate (e.g., a silicon substrate), a first transistor, and an integrated portion of an interstage impedance matching circuit. A control terminal of the first transistor is electrically coupled to an RF signal input terminal of the driver stage die, and the integrated portion of the interstage impedance matching circuit is electrically coupled between a current-carrying terminal of the first transistor and an RF signal output terminal of the driver stage die. The second die includes a III-V semiconductor substrate (e.g., a GaN substrate) and a second transistor. A connection, which is a non-integrated portion of the interstage impedance matching circuit, is electrically coupled between the RF signal output terminal of the driver stage die and an RF signal input terminal of the final stage die.Type: ApplicationFiled: October 26, 2018Publication date: May 9, 2019Inventors: Joseph Gerard SCHULTZ, Enver KRVAVAC, Olivier LEMBEYE, Cedric CASSAN, Kevin KIM, Jeffrey Kevin JONES
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Patent number: 9515623Abstract: An embodiment of an amplifier includes N (N>1) switch-mode power amplifier (SMPA) branches. Each SMPA branch includes two drive signal inputs and one SMPA branch output. A module coupled to the amplifier samples an input RF signal, and produces combinations of drive signals based on the samples. When an SMPA branch receives a first combination of drive signals, it produces an output signal at a first voltage level. Conversely, when the SMPA branch receives a different second combination of drive signals, it produces the output signal at a different second voltage level. Finally, when the SMPA branch receives a different third combination of drive signals, it produces the output signal at a voltage level of substantially zero. A combiner combines the output signals from all of the SMPA branches to produce a combined output signal that may have, at any given time, one of 2*N+1 quantization states.Type: GrantFiled: December 3, 2014Date of Patent: December 6, 2016Assignee: FREESCALE SEMICONDUCTOR, INC.Inventors: Jean-Christophe Nanan, Jean-Jacques Bouny, Cedric Cassan, Joseph Staudinger, Hugues Beaulaton
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Publication number: 20150155840Abstract: An embodiment of an amplifier includes N (N>1) switch-mode power amplifier (SMPA) branches. Each SMPA branch includes two drive signal inputs and one SMPA branch output. A module coupled to the amplifier samples an input RF signal, and produces combinations of drive signals based on the samples. When an SMPA branch receives a first combination of drive signals, it produces an output signal at a first voltage level. Conversely, when the SMPA branch receives a different second combination of drive signals, it produces the output signal at a different second voltage level. Finally, when the SMPA branch receives a different third combination of drive signals, it produces the output signal at a voltage level of substantially zero. A combiner combines the output signals from all of the SMPA branches to produce a combined output signal that may have, at any given time, one of 2*N+1 quantization states.Type: ApplicationFiled: December 3, 2014Publication date: June 4, 2015Inventors: JEAN-CHRISTOPHE NANAN, JEAN-JACQUES BOUNY, CEDRIC CASSAN, JOSEPH STAUDINGER, HUGUES BEAULATON
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Patent number: 8369053Abstract: A protection circuit apparatus comprises an electrostatic discharge circuit coupled to an isolation filter. The isolation filter comprises an inductor coupled to a ground-coupled capacitor, the inductor and the capacitor being coupled to the electrostatic discharge circuit. The inductor is also coupled to an electrostatic discharge sensitive device to be protected from an electrostatic discharge event.Type: GrantFiled: March 31, 2006Date of Patent: February 5, 2013Assignee: Freescale Semiconductor, Inc.Inventors: Xavier Moronval, Cedric Cassan, Jeffrey Jones, Olivier Lembeye
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Publication number: 20110038087Abstract: A protection circuit apparatus comprises an electrostatic discharge circuit coupled to an isolation filter. The isolation filter comprises an inductor coupled to a ground-coupled capacitor, the inductor and the capacitor being coupled to the electrostatic discharge circuit. The inductor is also coupled to an electrostatic discharge sensitive device to be protected from an electrostatic discharge event.Type: ApplicationFiled: March 31, 2006Publication date: February 17, 2011Applicant: FREESCALE SEMICONDUCTOR, INC.Inventors: Xavier Moronval, Cedric Cassan, Jeffrey Jones, Olivier Lembeye