Patents by Inventor Mauro Scandiuzzo
Mauro Scandiuzzo 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: 9219481Abstract: An asynchronous level shifter electronic circuit including: a transmitter, which can be coupled to a first voltage and generates a communication signal; a receiver, which can be coupled to a second voltage; and a capacitive coupling stage, which receives the communication signal and supplies a corresponding filtered signal to the receiver. The receiver includes: a threshold device, which has an input terminal and an output terminal and switches an electrical quantity on the output terminal between a first value and a second value, as a function of corresponding transitions through a threshold of a first intermediate signal present on the input terminal, to generate a second intermediate signal; and a biasing circuit, which generates the first intermediate signal to have a d.c. component, which is a function of the second intermediate signal, and superposed on which is a variable component, which is a function of the filtered signal.Type: GrantFiled: February 6, 2015Date of Patent: December 22, 2015Assignee: STMicroelectronics S.r.l.Inventors: Mauro Scandiuzzo, Salvatore Valerio Cani, Claudio Mucci, Roberto Canegallo, Pier Luigi Rolandi
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Patent number: 9176185Abstract: A testing apparatus includes a tester and a probe card system that includes a probe card connected to the tester, and an active interposer connected to the probe card and wirelessly coupled with a device to be tested. The active interposer includes pads positioned on its free surface facing the device. The pads are positioned with respect to pads of the device so that each pad of the active interposer faces a pad of the device and is separated therefrom by a dielectric. Each pair of facing pads forms an elementary wireless coupling element which allows a wireless transmission between the active interposer and the device. The active interposer also includes an amplifier circuit configured to amplify wireless signals from the device before forwarding them to the tester. The probe card system includes a transmission element able to transmit a power voltage from the tester to the device.Type: GrantFiled: July 25, 2012Date of Patent: November 3, 2015Assignee: STMicroelectronics S.r.l.Inventors: Roberto Canegallo, Mauro Scandiuzzo, Roberto Cardu, Eleonora Franchi Scarselli, Alberto Pagani
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Patent number: 9147636Abstract: A method includes communicatively coupling first and second integrated electronic devices together through a plurality of reference capacitors, transmitting a plurality of transmission reference signals on transmission reference electrodes of the plurality of reference capacitors, receiving coupling signals on reception reference electrodes of the plurality of reference capacitors, amplifying said coupling signals, generating a plurality of reception reference signals, generating a plurality of reception control signals as a function of the plurality of reception reference signals, and detecting a possible misalignment between said first and second integrated electronic devices based on the plurality of reception control signals.Type: GrantFiled: November 14, 2011Date of Patent: September 29, 2015Assignee: STMicroelectronics S.r.l.Inventors: Roberto Canegallo, Mauro Scandiuzzo, Eleonora Franchi Scarselli, Antonio Gnudi, Roberto Guerrieri
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Publication number: 20150155874Abstract: An asynchronous level shifter electronic circuit including: a transmitter, which can be coupled to a first voltage and generates a communication signal; a receiver, which can be coupled to a second voltage; and a capacitive coupling stage, which receives the communication signal and supplies a corresponding filtered signal to the receiver. The receiver includes: a threshold device, which has an input terminal and an output terminal and switches an electrical quantity on the output terminal between a first value and a second value, as a function of corresponding transitions through a threshold of a first intermediate signal present on the input terminal, to generate a second intermediate signal; and a biasing circuit, which generates the first intermediate signal to have a d.c. component, which is a function of the second intermediate signal, and superposed on which is a variable component, which is a function of the filtered signal.Type: ApplicationFiled: February 6, 2015Publication date: June 4, 2015Inventors: Mauro SCANDIUZZO, Salvatore Valerio CANI, Claudio Mucci, Roberto Canegallo, Pier Luigi Rolandi
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Patent number: 9001521Abstract: An assembly including: a first substrate having a first surface and housing a first electrical-interconnection element and a second electrical-interconnection element in a position corresponding to the first surface; a second substrate having a second surface, housing a third electrical-interconnection element and a fourth electrical-interconnection element in a position corresponding to the second surface, and provided with a dielectric layer extending on top of the third interconnection element; and a first bump and a second bump made of conductive material, extending between the first electrical-interconnection element and the third electrical-interconnection element and, respectively, between the second electrical-interconnection element and the fourth electrical-interconnection element, at least partially aligned to the respective electrical-interconnection elements, the first bump being ohmically coupled to the first interconnection element and capacitively coupled to the third interconnection element,Type: GrantFiled: December 22, 2011Date of Patent: April 7, 2015Assignee: STMicroelectronics S.r.l.Inventors: Roberto Canegallo, Mauro Scandiuzzo
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Patent number: 8982574Abstract: Contactless differential coupling structures can be used to communicate signals between circuits located on separate chips or from one chip to a probing device. The contactless coupling structures avoid problems (breaks, erosion, corrosion) that can degrade the performance of ohmic-type contact pads. The contactless coupling structures comprise pairs of conductive pads placed in close proximity. Differential signals are applied across a first pair of differential pads, and the signals are coupled wirelessly to a mating pair of conductive pads. Circuitry for generating and receiving differential signals is described.Type: GrantFiled: May 24, 2012Date of Patent: March 17, 2015Assignee: STMicroelectronics S.R.L.Inventors: Mauro Scandiuzzo, Luca Perilli, Roberto Canegallo
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Patent number: 8981830Abstract: An asynchronous level shifter electronic circuit including: a transmitter, which can be coupled to a first voltage and generates a communication signal; a receiver, which can be coupled to a second voltage; and a capacitive coupling stage, which receives the communication signal and supplies a corresponding filtered signal to the receiver. The receiver includes: a threshold device, which has an input terminal and an output terminal and switches an electrical quantity on the output terminal between a first value and a second value, as a function of corresponding transitions through a threshold of a first intermediate signal present on the input terminal, to generate a second intermediate signal; and a biasing circuit, which generates the first intermediate signal to have a d.c. component, which is a function of the second intermediate signal, and superposed on which is a variable component, which is a function of the filtered signal.Type: GrantFiled: January 29, 2013Date of Patent: March 17, 2015Assignee: STMicroelectronics S.r.l.Inventors: Mauro Scandiuzzo, Salvatore Valerio Cani, Claudio Mucci, Roberto Canegallo, Pier Luigi Rolandi
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Patent number: 8773162Abstract: An embodiment of communication cell for enabling data communication between an integrated circuit and an electronic unit distinct from the integrated circuit, comprising a contact pad unit, configured for capacitively coupling, in a first operating condition of said communication cell, to the electronic unit for receiving an input signal from said electronic unit, and for ohmically coupling, in a second operating condition of said communication cell, to the electronic unit for receiving the input signal; a receiver device, including signal-amplifying means, coupled between said contact pad unit and said integrated circuit, configured for receiving the input signal and generating an intermediate signal correlated to the input signal; signal-selection means receiving the intermediate signal, the input signal, and providing an output signal which is the intermediate signal during the first operating condition, and the input signal during the second operating condition; and an input stage, connectable between theType: GrantFiled: December 29, 2010Date of Patent: July 8, 2014Assignee: STMicroelectronics S.r.l.Inventors: Roberto Canegallo, Roberto Cardu, Mauro Scandiuzzo, Salvatore Valerio Cani, Luca Perugini
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Publication number: 20130027071Abstract: A testing apparatus includes a tester and a probe card system that includes a probe card connected to the tester, and an active interposer connected to the probe card and wirelessly coupled with a device to be tested. The active interposer includes pads positioned on its free surface facing the device. The pads are positioned with respect to pads of the device so that each pad of the active interposer faces a pad of the device and is separated therefrom by a dielectric. Each pair of facing pads forms an elementary wireless coupling element which allows a wireless transmission between the active interposer and the device. The active interposer also includes an amplifier circuit configured to amplify wireless signals from the device before forwarding them to the tester. The probe card system includes a transmission element able to transmit a power voltage from the tester to the device.Type: ApplicationFiled: July 25, 2012Publication date: January 31, 2013Applicant: STMicroelectonics S.r.I.Inventors: Roberto Canegallo, Mauro Scandiuzzo, Roberto Cardu, Eleonora Franchi Scarselli, Alberto Pagani
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Publication number: 20130001547Abstract: A method includes communicatively coupling first and second integrated electronic devices together through a plurality of reference capacitors, transmitting a plurality of transmission reference signals on transmission reference electrodes of the plurality of reference capacitors, receiving coupling signals on reception reference electrodes of the plurality of reference capacitors, amplifying said coupling signals, generating a plurality of reception reference signals, generating a plurality of reception control signals as a function of the plurality of reception reference signals, and detecting a possible misalignment between said first and second integrated electronic devices based on the plurality of reception control signals.Type: ApplicationFiled: November 14, 2011Publication date: January 3, 2013Applicant: STMICROELECTRONICS S.R.L.Inventors: Roberto Canegallo, Mauro Scandiuzzo, Eleonora Franchi Scarselli, Antonio Gnudi, Roberto Guerrieri
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Patent number: 8340576Abstract: A device and method to compensate for distortions of amplitude that afflict systems for communicating through capacitive coupling. A circuit includes a first transmitter stage, a first receiver stage, and a first coupling capacitor, coupled between the first transmitter stage and the first receiver stage. The first receiver stage includes a calibration amplifier of a variable-gain type coupled between the first coupling capacitor and an output of the electronic circuit. The electronic circuit includes a reference channel formed by: a transmission calibration stage; a reception calibration stage; and a reference capacitor coupled between the transmission calibration stage and the reception calibration stage.Type: GrantFiled: June 29, 2010Date of Patent: December 25, 2012Assignee: STMicroelectronics S.r.l.Inventors: Roberto Canegallo, Mauro Scandiuzzo, Eleonora Franchi Scarselli, Antonio Gnudi, Roberto Guerrieri, Federico Natali
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Publication number: 20120262231Abstract: Contactless differential coupling structures can be used to communicate signals between circuits located on separate chips or from one chip to a probing device. The contactless coupling structures avoid problems (breaks, erosion, corrosion) that can degrade the performance of ohmic-type contact pads. The contactless coupling structures comprise pairs of conductive pads placed in close proximity. Differential signals are applied across a first pair of differential pads, and the signals are coupled wirelessly to a mating pair of conductive pads. Circuitry for generating and receiving differential signals is described.Type: ApplicationFiled: May 24, 2012Publication date: October 18, 2012Applicant: STMicroelectronics S.r.lInventors: Mauro SCANDIUZZO, Luca Perilli, Roberto CANEGALLO
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Publication number: 20120170237Abstract: An assembly including: a first substrate having a first surface and housing a first electrical-interconnection element and a second electrical-interconnection element in a position corresponding to the first surface; a second substrate having a second surface, housing a third electrical-interconnection element and a fourth electrical-interconnection element in a position corresponding to the second surface, and provided with a dielectric layer extending on top of the third interconnection element; and a first bump and a second bump made of conductive material, extending between the first electrical-interconnection element and the third electrical-interconnection element and, respectively, between the second electrical-interconnection element and the fourth electrical-interconnection element, at least partially aligned to the respective electrical-interconnection elements, the first bump being ohmically coupled to the first interconnection element and capacitively coupled to the third interconnection element,Type: ApplicationFiled: December 22, 2011Publication date: July 5, 2012Applicant: STMicroelectronics S.r.l.Inventors: Roberto Canegallo, Mauro Scandiuzzo
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Patent number: 8150315Abstract: A method for verifying alignment between first and second integrated devices coupled together using a reference and a coupling capacitor, including: transmitting a reference signal on a transmission electrode of the reference capacitor; receiving a coupling signal on a reception electrode of the reference capacitor; amplifying the coupling signal, generating a reception reference signal; generating a reception control signal as a function of the reception reference signal; transmitting a communication signal on an electrode of the coupling capacitor; receiving a reception signal on an electrode of the coupling capacitor; amplifying the reception signal, generating a first compensated signal; controlling a level of amplification of amplifying the coupling signal and the reception signal as a function of the reception control signal; and detecting a possible misalignment between the first and second devices based on an amplitude of the communication signal and an amplitude of the compensated signal.Type: GrantFiled: June 29, 2010Date of Patent: April 3, 2012Assignee: STMicroelectronics S.r.l.Inventors: Roberto Canegallo, Mauro Scandiuzzo, Eleonora Franchi Scarselli, Antonio Gnudi, Roberto Guerrieri
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Publication number: 20110319015Abstract: A method for verifying alignment between first and second integrated devices coupled together using a reference and a coupling capacitor, including: transmitting a reference signal on a transmission electrode of the reference capacitor; receiving a coupling signal on a reception electrode of the reference capacitor; amplifying the coupling signal, generating a reception reference signal; generating a reception control signal as a function of the reception reference signal; transmitting a communication signal on an electrode of the coupling capacitor; receiving a reception signal on an electrode of the coupling capacitor; amplifying the reception signal, generating a first compensated signal; controlling a level of amplification of amplifying the coupling signal and the reception signal as a function of the reception control signal; and detecting a possible misalignment between the first and second devices based on an amplitude of the communication signal and an amplitude of the compensated signal.Type: ApplicationFiled: June 29, 2010Publication date: December 29, 2011Applicant: STMICROELECTRONICS S.R.L.Inventors: Roberto Canegallo, Mauro Scandiuzzo, Eleonora Franchi Scarselli, Antonio Gnudi, Roberto Guerrieri
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Publication number: 20110319014Abstract: A device and method to compensate for distortions of amplitude that afflict systems for communicating through capacitive coupling. A circuit includes a first transmitter stage, a first receiver stage, and a first coupling capacitor, coupled between the first transmitter stage and the first receiver stage. The first receiver stage includes a calibration amplifier of a variable-gain type coupled between the first coupling capacitor and an output of the electronic circuit. The electronic circuit includes a reference channel formed by: a transmission calibration stage; a reception calibration stage; and a reference capacitor coupled between the transmission calibration stage and the reception calibration stage.Type: ApplicationFiled: June 29, 2010Publication date: December 29, 2011Applicant: STMICROELECTRONICS S.R.L.Inventors: Roberto Canegallo, Mauro Scandiuzzo, Eleonora Franchi Scarselli, Antonio Gnudi, Roberto Guerrieri, Federico Natali
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Publication number: 20110171906Abstract: An embodiment of communication cell for enabling data communication between an integrated circuit and an electronic unit distinct from the integrated circuit, comprising a contact pad unit, configured for capacitively coupling, in a first operating condition of said communication cell, to the electronic unit for receiving an input signal from said electronic unit, and for ohmically coupling, in a second operating condition of said communication cell, to the electronic unit for receiving the input signal; a receiver device, including signal-amplifying means, coupled between said contact pad unit and said integrated circuit, configured for receiving the input signal and generating an intermediate signal correlated to the input signal; signal-selection means receiving the intermediate signal, the input signal, and providing an output signal which is the intermediate signal during the first operating condition, and the input signal during the second operating condition; and an input stage, connectable between theType: ApplicationFiled: December 29, 2010Publication date: July 14, 2011Applicant: STMICROELECTRONICS S.R.L.Inventors: Roberto CANEGALLO, Roberto CARDU, Mauro SCANDIUZZO, Salvatore Valerio CANI, Luca PERUGINI