Patents Assigned to STMICROELECTRONICS (TOURS)
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Publication number: 20250251241Abstract: The control circuit for a MEMS gyroscope is configured to receive a measurement signal which has a quadrature component and a sensing component. The control circuit has: an input stage which acquires an input signal, generating an acquisition signal, where the input signal is a function of the measurement signal and of a quadrature cancellation signal; a processing stage which extracts a first component of the acquisition signal, indicative of the sensing component of the measurement signal and having a sensing frequency band; and a quadrature correction stage which extracts a second component of the acquisition signal, indicative of the quadrature component of the measurement signal, and generates the quadrature cancellation signal from a reference signal. The quadrature cancellation signal is a signal modulated as a function of the second component of the acquisition signal, at an update frequency which is outside the sensing frequency band.Type: ApplicationFiled: April 22, 2025Publication date: August 7, 2025Applicant: STMICROELECTRONICS S.r.l.Inventor: Angelo GRANATA
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Patent number: 12381729Abstract: A device multiplies a first public key by a first scalar value, generating an intermediate result. The first public key corresponds to a point on an elliptic curve of order n, n is an integer, and the first scalar value is equal to n/m where in is a largest prime integer factor of n. The device determines whether the intermediate result is equal to a value corresponding to a point O at infinity on the elliptic curve. In response to the determining indicating the intermediate result is different from the value corresponding to the point O, the device multiplies the intermediate result by a second scalar, generating a shared secret value. The device performs one or more processing operations using the generated shared secret value. Otherwise, the device may initiate error processing without generating the shared secret value.Type: GrantFiled: March 15, 2023Date of Patent: August 5, 2025Assignee: STMICROELECTRONICS BELGIUMInventors: Thierry Simon, Gilles Van Assche
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Patent number: 12377429Abstract: The present disclosure is directed to a fluidic ejection device configured to detect whether one or more nozzles of the fluidic ejection device is in a normal state, a blocked nozzle state, or an accumulated fluid state. The fluidic ejection device includes an optical blockage detector having a light emitting device configured to emit a light signal, and a light sensor configured to detect the light signal. The optical blockage detector detects the normal state, the blocked nozzle state, and the accumulated fluid state based on the detected light signal.Type: GrantFiled: March 7, 2023Date of Patent: August 5, 2025Assignee: STMICROELECTRONICS (RESEARCH & DEVELOPMENT) LIMITEDInventor: Jeffrey M. Raynor
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Patent number: 12374606Abstract: A method of producing electronic components including at least one circuit having coupled therewith electrical connections including metallic wire bondable surfaces encased in a packaging, the method including bonding stud bumps, in particular copper stud bumps, at determined areas of said wire bondable surfaces.Type: GrantFiled: March 4, 2024Date of Patent: July 29, 2025Assignee: STMICROELECTRONICS S.r.l.Inventor: Fabio Marchisi
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Patent number: 12374983Abstract: Provided is a control device is for a switching voltage regulator having a switching circuit. The control device receives input and output voltages of the switching circuit and a measurement signal indicative of a current of the switching circuit. The control device has: a feedback module that detects an error signal indicative of a difference between the output voltage and a nominal voltage, and provides a control signal as a function of the error signal; a threshold-correction module that provides offset and ramp signals; and a driving-signal generation module coupled to the feedback and threshold-correction modules, which receives the measurement signal, compares the measurement signal with a threshold and, in response, provides a modulated signal for driving the switching circuit. The threshold is a function of the control, offset and ramp signals. The threshold-correction module provides the offset signal as a function of the input or output voltages.Type: GrantFiled: June 7, 2023Date of Patent: July 29, 2025Assignee: STMICROELECTRONICS S.r.l.Inventors: Stefano Castorina, Elena Brigo, Ivan Floriani
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Patent number: 12374545Abstract: Process for manufacturing a 3C—SiC layer, comprising the steps of: providing a wafer of 4H—SiC, provided with a surface; heating, through a LASER beam, a selective portion of the wafer at least up to a melting temperature of the material of the selective portion; allowing the cooling and crystallization of the melted selective portion, thus forming the 3C—SiC layer, a Silicon layer on the 3C—SiC layer and a carbon-rich layer above the Silicon layer; completely removing the carbon-rich layer and the Silicon layer, exposing the 3C—SiC layer. If the Silicon layer is maintained on the 4H—SiC wafer, the process leads to the formation of a Silicon layer on the 4H—SiC wafer. The 3C—SiC or Silicon layer thus formed may be used for the integration, even only partial, of electrical or electronic components.Type: GrantFiled: March 9, 2023Date of Patent: July 29, 2025Assignee: STMICROELECTRONICS S.r.l.Inventors: Gabriele Bellocchi, Simone Rascuna′, Paolo Badala′, Anna Bassi
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Patent number: 12373374Abstract: A system including a first port configured to simultaneously couple with a first device and a second device; and a management circuit configured to route a data signal received from a first controller to the first device in response to receiving a first-device direction from the first controller and route the data signal received from the first controller to the second device in response to receiving a second-device direction from the first controller unless an override condition for the management circuit is satisfied.Type: GrantFiled: January 28, 2022Date of Patent: July 29, 2025Assignees: STMICROELECTRONICS (GRAND OUEST) SAS, STMICROELECTRONICS (ROUSSET) SASInventors: Loic Pallardy, Nicolas Saux
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Patent number: 12372996Abstract: An embodiment electronic system comprises a first device, a second device and a clock generator circuit. The clock generator circuit is configured to provide a clock signal having a selectable frequency. The first device comprises a first processing circuit having coupled therewith a first Ethernet interface, and the second electronic device comprises a second processing circuit having coupled therewith a second Ethernet interface. At least one of the first device and the second device is configured to determine a frequency of the clock signal as a function of an operating parameter of the first device and/or of the second device and/or as a function of a parameter of the frames exchanged between the first device and the second device, and to act on the clock generator circuit to operate the clock generator circuit at the frequency.Type: GrantFiled: June 2, 2023Date of Patent: July 29, 2025Assignee: STMICROELECTRONICS S.R.L.Inventor: Giuseppe Cavallaro
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Publication number: 20250241036Abstract: Merged-PiN-Schottky, MPS, device comprising: a substrate of SiC with a first conductivity; a drift layer of SiC with the first conductivity, on the substrate; an implanted region with a second conductivity, extending at a top surface of the drift layer to form a junction-barrier, JB, diode with the substrate; and a first electrical terminal in ohmic contact with the implanted region and in direct contact with the top surface to form a Schottky diode with the drift layer. The JB diode and the Schottky diode are alternated to each other along an axis: the JB diode has a minimum width parallel to the axis with a first value, and the Schottky diode has a maximum width parallel to the axis with a second value smaller than, or equal to, the first value. A breakdown voltage of the MPS device is greater than, or equal to, 115% of a maximum working voltage of the MPS device in an inhibition state.Type: ApplicationFiled: January 17, 2025Publication date: July 24, 2025Applicant: STMICROELECTRONICS S.r.l.Inventors: Simone RASCUNÁ, Mario Giuseppe SAGGIO
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Patent number: 12365001Abstract: A microfluidic device provided in a body accommodating a fluid containment chamber. A fluidic access channel and a drop emission channel are formed in the body and are in fluidic connection with the fluid containment chamber to form a fluidic path towards the body outside through a nozzle having an outlet section. An actuator is operatively coupled to the fluid containment chamber and is configured to cause ejection of fluid drops through the drop emission channel in an operating condition of the microfluidic device. The drop emission channel comprises a portion of reduced section having a smaller area than the outlet section of the nozzle.Type: GrantFiled: July 20, 2021Date of Patent: July 22, 2025Assignee: STMICROELECTRONICS S.R.L.Inventors: Domenico Giusti, Andrea Nicola Colecchia, Claudio Crippa
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Patent number: 12368379Abstract: A control module, for a resonant switched-capacitor converter having first, second, third and fourth cascaded switches and generating an output voltage, includes a timing circuit generating a clock, a controller generating first and second control signals indicating, respectively, first and second control quantities, the difference between which being a function of the difference between a reference quantity and a feedback quantity depending on the output voltage, first and second delay circuits that generate first and second logic signals and, respectively, third and fourth logic signals, the first and third logic signals being delayed with respect to the clock as a function of, respectively, the first and second control quantities, the second and fourth control signals being respectively the logic negation of the first and third logic signals, and a driver that controls the first, second, third, and fourth switches based on, respectively, the first, second, third, and fourth logic signals.Type: GrantFiled: April 4, 2023Date of Patent: July 22, 2025Assignee: STMICROELECTRONICS S.R.L.Inventors: Alessandro Nicolosi, Alessandra Farina, Edoardo Bonizzoni
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Patent number: 12369410Abstract: In at least one embodiment, a Geiger-mode avalanche photodiode, including a semiconductor body, is provided. The semiconductor body includes a semiconductive structure and a front epitaxial layer on the semiconductive structure. The front epitaxial layer has a first conductivity type. An anode region having a second conductivity type that is different from the first conductivity type extends into the front epitaxial layer. The photodiode further includes a plurality of gettering regions in the semiconductive structure.Type: GrantFiled: March 18, 2024Date of Patent: July 22, 2025Assignee: STMICROELECTRONICS S.r.l.Inventors: Massimo Cataldo Mazzillo, Valeria Cinnera Martino
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Patent number: 12368354Abstract: A stator for an electric actuator or motor, including: a solid body; a ferromagnetic core region between the layers of semiconductor material, electrically insulated from the layers of semiconductor material; a plurality of conductive through vias through the solid body; a first plurality of conductive strips, which extend parallel to one another above the core; and a second plurality of conductive strips, which extend parallel to one another above the core and opposite to the first plurality of conductive strips; wherein the first plurality of conductive strips, the plurality of conductive through vias, and the second plurality of conductive strips form a winding or coil of the stator.Type: GrantFiled: June 30, 2023Date of Patent: July 22, 2025Assignee: STMICROELECTRONICS S.r.l.Inventors: Luca Seghizzi, Federico Vercesi, Gianluca Longoni
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Publication number: 20250234570Abstract: The vertical-conduction electronic power device is formed by a body of wide band gap semiconductor which has a first conductivity type and has a surface, and is formed by a drift region and by a plurality of surface portions delimited by the surface. The electronic device is further formed by a plurality of first implanted regions having a second conductivity type, which extend into the drift region from the surface, and by a plurality of metal portions, which are arranged on the surface. Each metal portion is in Schottky contact with a respective surface portion of the plurality of surface portions so as to form a plurality of Schottky diodes formed by first Schottky diodes and second Schottky diodes, wherein the first Schottky diodes have, at equilibrium, a Schottky barrier having a height different from that of the second Schottky diodes.Type: ApplicationFiled: April 3, 2025Publication date: July 17, 2025Applicant: STMICROELECTRONICS S.R.L.Inventor: Simone RASCUNÁ
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Patent number: 12357874Abstract: A system can be used for detecting execution of a swimming activity of a user. The system includes a processing unit, a buffer, and an electrostatic-charge-variation sensor configured to sense a variation of electrostatic charge of the user during execution of the swimming activity and to generate a corresponding charge-variation signal. The processing unit is configured to acquire the charge-variation signal, detect a first sub-portion of signal that identifies a basic movement of the swimming activity in the charge-variation signal, store the first sub-portion of signal in the buffer, compute an auto-correlation between the first sub-portion of signal stored in the buffer and a second sub-portion of signal of the charge-variation signal, and detect the presence of the basic movement in the second sub-portion of signal based on a result of the auto-correlation.Type: GrantFiled: September 3, 2021Date of Patent: July 15, 2025Assignee: STMICROELECTRONICS S.R.L.Inventors: Enrico Rosario Alessi, Fabio Passaniti
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Patent number: 12362922Abstract: An electronic device includes processing circuitry and one or more memories, including a non-volatile memory. Ephemeral cryptographic key generation circuitry, in operation, applies a function to code stored in the non-volatile memory, generating an ephemeral cryptographic key. Cryptographic circuitry coupled between the processing circuitry and the one or more memories, in operation, performs one or more cryptographic operations on data using the generated ephemeral cryptographic key. The device may include a register, which, in operation, temporarily stores the generated ephemeral cryptographic key.Type: GrantFiled: March 19, 2020Date of Patent: July 15, 2025Assignees: STMICROELECTRONICS (ROUSSET) SAS, STMICROELECTRONICS BELGIUMInventors: Fabrice Marinet, Michael Peeters
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Patent number: 12360135Abstract: A method for detecting orientation of an integrated circuit is disclosed. The method includes moving, in response to a gravitational force, a mobile metallic piece in an evolution zone of a housing. The housing is formed in an interconnect region of the integrated circuit. The housing includes walls defining the evolution zone. The walls are formed within multiple metallization levels of the interconnect region. The walls include a floor wall and a ceiling wall. At least one of the floor wall and ceiling wall incorporate a pointed element directing its pointed region towards the mobile metallic piece. The pointed element delimits an open crater in a concave part of a projection. The method further includes creating an electrical signal by movement of the mobile metallic piece at a plurality of electrically conducting elements positioned at boundary points of the evolution zone and detecting the electrical signal by a detector.Type: GrantFiled: November 23, 2022Date of Patent: July 15, 2025Assignee: STMICROELECTRONICS (ROUSSET) SASInventors: Abderrezak Marzaki, Yoann Goasduff, Virginie Bidal, Pascal Fornara
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Patent number: 12364021Abstract: Overvoltage protection circuits are provided. In some embodiments, an overvoltage protection circuit includes a first diode made of a first semiconductor material having a bandgap width greater than that of silicon. A second diode is included and is electrically cross-coupled with the first diode. The second diode is made of a second semiconductor material different from the first semiconductor material.Type: GrantFiled: February 16, 2024Date of Patent: July 15, 2025Assignees: STMICROELECTRONICS S.r.l., STMICROELECTRONICS (TOURS) SASInventors: Jean-Michel Simonnet, Sophie Ngo, Simone Rascuna′
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Patent number: 12364038Abstract: The present disclosure is directed to a package that includes a transparent layer that is on and covers a sensor of a die as well as a plurality of electrical connections that extend from a first surface of the package to the second surface of the package opposite to the first surface. In at least one embodiment of a package, the electrical connections each include a conductive structure that extends through the transparent layer to a first side of a corresponding contact pad of the die, and at least one electrical that extends into the second surface of the die to a second side of the corresponding contact pad that is opposite to the first side. In at least another embodiment of a package, the electrical connections include a conductive structure that extends through a molding compound to a first side of a corresponding contact pad of the die, and at least one electrical via that extends into the second surface of the die to a second side of the corresponding contact pad opposite to the first side.Type: GrantFiled: December 20, 2021Date of Patent: July 15, 2025Assignees: STMICROELECTRONICS LTD, STMICROELECTRONICS PTE LTDInventors: David Gani, Yiying Kuo
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Patent number: 12362836Abstract: The present disclosure is directed to a light-signal communication receiver device including a photo-receiving diode configured to generate a current signal on a first node from a received light signal, a preamplifier configured to convert the current signal on the first node into a voltage signal on a second node, and a differential amplifier including a first input connected to the first node and a second input connected to a third node coupled to the second node via an adjustment circuit. The adjustment circuit is configured to offset the level of the voltage signal of the second node, on the third node, in a controlled manner by a control signal.Type: GrantFiled: January 4, 2023Date of Patent: July 15, 2025Assignees: STMICROELECTRONICS (GRENOBLE 2) SAS, STMICROELECTRONICS (ALPS) SASInventors: Nicolas Moeneclaey, Vratislav Michal, Jean-Luc Patry