Patents Assigned to STMicroelectronics S.r.l.
  • Publication number: 20230266403
    Abstract: A device includes a driver circuit and diagnostic circuitry coupled to the driver circuit. The diagnostic circuitry includes an on-state diagnostic circuit and an off-state diagnostic circuit. The diagnostic circuitry, in operation: generates a configuration signal associated with an operative condition of the driver circuit based on a comparator output of the off-state diagnostic circuit; diagnoses conditions associated with the driver circuit; and controls operation of the on-state diagnostic circuit based on the configuration signal.
    Type: Application
    Filed: February 23, 2022
    Publication date: August 24, 2023
    Applicant: STMICROELECTRONICS S.r.l.
    Inventor: Gaudenzia BAGNATI
  • Publication number: 20230266357
    Abstract: Micromechanical device comprising: a semiconductor body; a movable structure configured to oscillate relative to the semiconductor body along an oscillation direction; and an elastic assembly with an elastic constant, coupled to the movable structure and to the semiconductor body and configured to deform along the oscillation direction to allow the oscillation of the movable structure as a function of an acceleration applied to the micromechanical device.
    Type: Application
    Filed: February 14, 2023
    Publication date: August 24, 2023
    Applicant: STMICROELECTRONICS S.r.l.
    Inventors: Gabriele GATTERE, Francesco RIZZINI, Nicolo' MANCA
  • Publication number: 20230266356
    Abstract: The present disclosure is directed to micro-electromechanical system (MEMS) accelerometers that are configured for a user interface mode and a true wireless stereo (TWS) mode of an audio device. The accelerometers are fabricated with specific electromechanical parameters, such as mass, stiffness, active capacitance, and bonding pressure. As a result of the specific electromechanical parameters, the accelerometers have a resonance frequency, quality factor, sensitivity, and Brownian noise density that are suitable for both the user interface mode and the TWS mode.
    Type: Application
    Filed: February 18, 2022
    Publication date: August 24, 2023
    Applicant: STMICROELECTRONICS S.r.l.
    Inventors: Francesco RIZZINI, Nicolo' MANCA, Cristian DALL'OGLIO
  • Publication number: 20230266381
    Abstract: An integrated circuit includes a plurality of power transistor driver channels for driving external loads. The driver channels can be selectively configured as high side or low side driver channels. The integrated circuit includes, for each driver channel, a respective analog test circuit and a respective controller. The integrated circuit includes a single counter connected to each of the controllers for simultaneously controlling off-state diagnosis timing windows for the driver channels.
    Type: Application
    Filed: February 23, 2022
    Publication date: August 24, 2023
    Applicant: STMICROELECTRONICS S.R.L.
    Inventors: Gaudenzia BAGNATI, Marzia ANNOVAZZI, Diego ALAGNA, Lucia MAGGIO
  • Patent number: 11736009
    Abstract: In an embodiment a control circuit includes a low-power detection circuit configured to generate a control signal, wherein the low-power detection circuit is, when a driver circuit operates in a high-power mode, configured to determine a first temporal value indicative of a duration of a second phase (T2), detect whether a logic level of a zero current signal changes from a first logic level to a second logic level during the second phase (T2), in response to detecting that the logic level of the zero current signal changes from the first logic level to the second logic level, determine a second temporal value indicative of a time (TZC) elapsed between an instant (t3) when the logic level of the zero current signal changes from the first logic level to the second logic level during the second phase (T2) and the instant (t1) when the second phase (T2) ends, determine whether a ratio between the second temporal value (TZC) and the first temporal value (T2) is greater than a given number threshold value (TH), in
    Type: Grant
    Filed: September 23, 2021
    Date of Patent: August 22, 2023
    Assignee: STMicroelectronics S.r.l.
    Inventors: Michele Suraci, Marco Borghese
  • Patent number: 11737369
    Abstract: An integrated magnetoresistive device includes a substrate of semiconductor material that is covered, on a first surface, by an insulating layer. A magnetoresistor of ferromagnetic material extends within the insulating layer and defines a sensitivity plane of the sensor. A concentrator of ferromagnetic material includes at least one arm that extends in a transversal direction to the sensitivity plane and is vertically offset from the magnetoresistor. The concentrator concentrates deflects magnetic flux lines perpendicular to the sensitivity plane so as to generate magnetic-field components directed in a parallel direction to the sensitivity plane.
    Type: Grant
    Filed: June 9, 2021
    Date of Patent: August 22, 2023
    Assignee: STMicroelectronics S.r.l.
    Inventors: Dario Paci, Marco Morelli, Caterina Riva
  • Publication number: 20230259463
    Abstract: A processing system includes a communication system and a processing core configured to generate write requests. A circuit has associated a slave interface circuit configured to manage an address sub-range and selectively forward write requests addressed to a given address. Configuration data specifies whether the given address is protected/unprotected and locked/unlocked. In response to a received write request, address and data are extracted and a determination based on the configuration data is made as to whether the extracted address is protected/unprotected, and locked/unlocked. When the extracted address is unprotected or unlocked, the slave interface forwards the write request. When the extracted address is protected and locked, the slave interface generates an unlock signal in response to a comparison of the extracted address with the extracted data, with the unlock signal being asserted when the extracted data satisfy a predetermined rule with respect to the extracted address.
    Type: Application
    Filed: February 14, 2023
    Publication date: August 17, 2023
    Applicants: STMicroelectronics S.r.l., STMicroelectronics SA
    Inventors: Roberta VITTIMANI, Federico GOLLER, Riccardo ANGRILLI, Charles AUBENAS
  • Publication number: 20230258709
    Abstract: An integrated circuit includes a sub-system and a reference sub-system. The reference sub-system is substantially identical to the sub-system but is non-operating by default. The integrated circuit includes a test circuit that obtains a parameter value of the sub-system and a reference parameter from the reference sub-system. The integrated circuit detects deterioration of the sub-system based on the parameter value and the reference parameter. The integrated circuit deactivates the sub-system and activates the reference sub-system responsive to detecting deterioration of the sub-system.
    Type: Application
    Filed: February 15, 2022
    Publication date: August 17, 2023
    Applicant: STMICROELECTRONICS S.R.L.
    Inventors: Carlo CAIMI, Massimiliano PESATURO, Stefano Antonio MASTROROSA, Alfredo Lorenzo POLI, Marco DELLA SETA
  • Publication number: 20230261100
    Abstract: A manufacturing process forms an HEMT device. For the manufacturing process includes forming, from a wafer of silicon carbide having a surface, an epitaxial layer of silicon carbide on the surface of the wafer A semiconductive heterostructure is formed on the epitaxial layer, and the wafer of silicon carbide is removed.
    Type: Application
    Filed: February 10, 2023
    Publication date: August 17, 2023
    Applicant: STMICROELECTRONICS S.r.l.
    Inventors: Ferdinando IUCOLANO, Andrea SEVERINO, Giuseppe GRECO, Fabrizio ROCCAFORTE
  • Patent number: 11726543
    Abstract: Systems and devices are provided to enable granular control over a retention or active state of each of a plurality of memory circuits, such as a plurality of memory cell arrays, within a memory. Each respective memory array of the plurality of memory arrays is coupled to a respective ballast driver and a respective active memory signal switch for the respective memory array. One or more voltage regulators are coupled to a ballast driver gate node and to a bias node of at least one of the respective memory arrays. In operation, the respective active memory signal switch for a respective memory array causes the respective memory array to transition between an active state for the respective memory array and a retention state for the respective memory array.
    Type: Grant
    Filed: December 3, 2020
    Date of Patent: August 15, 2023
    Assignees: STMICROELECTRONICS S.r.l., STMicroelectronics International N.V.
    Inventors: Nitin Chawla, Anuj Grover, Giuseppe Desoli, Kedar Janardan Dhori, Thomas Boesch, Promod Kumar
  • Patent number: 11726542
    Abstract: In an embodiment, an electronic circuit includes: a supply management circuit for receiving an input supply voltage and providing a first supply voltage; and a main circuit configured to: when the input supply voltage becomes higher than a first threshold, cause the electronic circuit to transition into an initialization state in which an oscillator is enabled and configuration data is copied from an NVM to configuration registers, and then to transition into a standby state in which the oscillator is disabled and content of the configuration registers is preserved by the first supply voltage, and, upon reception of a wakeup event, cause the configuration data from the configuration registers to be applied to the first circuit, and cause the electronic circuit to transition into an active state in which the first oscillator is enabled and the first circuit is configured to operate based on the configuration data.
    Type: Grant
    Filed: August 8, 2022
    Date of Patent: August 15, 2023
    Assignee: STMicroelectronics S.r.l.
    Inventors: Vincenzo Polisi, CalogeroAndrea Trecarichi
  • Patent number: 11728404
    Abstract: An HEMT device of a normally-on type, comprising a heterostructure; a dielectric layer extending over the heterostructure; and a gate electrode extending right through the dielectric layer. The gate electrode is a stack, which includes: a protection layer, which is made of a metal nitride with stuffed grain boundaries and extends over the heterostructure, and a first metal layer, which extends over the protection layer and is completely separated from the heterostructure by said protection layer.
    Type: Grant
    Filed: June 17, 2021
    Date of Patent: August 15, 2023
    Assignee: STMICROELECTRONICS S.R.L.
    Inventors: Ferdinando Iucolano, Paolo Badalá
  • Patent number: 11724932
    Abstract: A method for making an integrated micro-electromechanical device includes forming a first body of semiconductor material having a first face and a second face opposite the first face. The first body includes a buried cavity forming a diaphragm delimited between the buried cavity and the first face. The diaphragm is monolithic with the first body. The method further includes forming at least one first magnetic via extending between the second face and the buried cavity of the first body, forming a first magnetic region extending over the first face of the first body, and forming a first coil extending over the second face of the first body and being magnetically coupled to the first magnetic via.
    Type: Grant
    Filed: June 14, 2019
    Date of Patent: August 15, 2023
    Assignee: STMicroelectronics S.r.l.
    Inventors: Alberto Pagani, Alessandro Motta
  • Patent number: 11725998
    Abstract: A method includes collecting, at a building opening, air pressure signals from a pressure sensor and sound signals from a sound sensor. The method also includes sensing pressure peaks occurring in the air pressure signals and sensing sound pulses occurring in the sound signals. A joint occurrence of a pressure peak in the air pressure signals and a sound pulse in the sound signals is indicative of an opening/closing event of the building opening.
    Type: Grant
    Filed: February 15, 2019
    Date of Patent: August 15, 2023
    Assignee: STMicroelectronics S.r.l.
    Inventors: Saverio Grutta, Enrico Rosario Alessi
  • Patent number: 11728422
    Abstract: A power MOSFET device includes an active area accommodating a first body region and a second body region having a first and, respectively, a second conductivity value. The second value is higher than the first value. A first channel region is disposed in the first body region between a first source region and a drain region, and the first channel region has and having a first channel length. A second channel region is disposed in the second body region between a second source region and the drain region, and the second channel region has and having a second channel length smaller than the first channel length. A first device portion, having a first threshold voltage, includes the first channel region, and a second device portion, having a second threshold voltage higher than the first threshold voltage, includes the second channel region.
    Type: Grant
    Filed: November 12, 2020
    Date of Patent: August 15, 2023
    Assignee: STMicroelectronics S.r.l.
    Inventors: Angelo Magri', Stefania Fortuna
  • Patent number: 11725990
    Abstract: A thermographic sensor is proposed. The thermographic sensor includes a plurality of sensing elements each comprising at least one thermo-couple. The thermographic sensor is integrated on a semiconductor on insulator body that is patterned to define a grid suspended from a substrate; for each sensing element, the grid has a frame with the cold joint of the thermo-couple, a plate with the hot joint of the thermo-couple and one or more arms sustaining the plate from the frame. The frames include one or more conductive layers of thermally conductive material for thermally equalizing the cold joints with the substrate. Moreover, each sensing element may also include a processing circuit for the thermo-couple that is integrated on the corresponding frame. A thermographic device including the thermographic sensor and a corresponding signal processing circuit, and a system including one or more thermographic devices are also proposed.
    Type: Grant
    Filed: November 29, 2021
    Date of Patent: August 15, 2023
    Assignee: STMICROELECTRONICS S.r.l.
    Inventors: Maria Eloisa Castagna, Giuseppe Bruno
  • Publication number: 20230253895
    Abstract: MEMS actuator including: a substrate; a first and a second semiconductive layer; a frame including transverse regions formed by the second semiconductive layer, elongated parallel to a first direction and offset along a second direction, the frame being movable parallel to the second direction.
    Type: Application
    Filed: January 30, 2023
    Publication date: August 10, 2023
    Applicant: STMICROELECTRONICS S.r.l.
    Inventors: Andrea OPRENI, Valentina ZEGA, Attilio FRANGI, Gabriele GATTERE, Manuel RIANI
  • Publication number: 20230251621
    Abstract: A system for detecting and evaluating environmental quantities and events is formed by a detection and evaluation device and a mobile phone, connected through a wireless connection. The device is enclosed in a containment casing housing a support carrying a plurality of inertial sensors and environmental sensors. A processing unit is coupled to the inertial sensors and to the environmental sensors. A wireless connection unit, is coupled to the processing unit and a wired connection port, is coupled to the processing unit. A programming connector is coupled to the processing unit and is configured to couple to an external programming unit to receive programming instructions of the processing unit. A storage structure is coupled to the processing unit and a power-supply unit supplied power in the detection and evaluation device. The mobile phone stores an application, which enables a basicuse mode, an expert use mode, and an advanced use mode.
    Type: Application
    Filed: April 14, 2023
    Publication date: August 10, 2023
    Applicant: STMicroelectronics S.r.l.
    Inventors: Luca FONTANELLA, Andrea LABOMBARDA, Marco BIANCO, Davide GHEZZI, Christian RAINERI, Paolo GATTI
  • Publication number: 20230251926
    Abstract: A processing system includes configuration registers and a non-volatile memory with memory slots storing configuration data bits and error detection bits. A hardware configuration circuit sequentially reads the data bits from the non-volatile memory for storage in respective configuration registers by: receiving bits from a current memory slot; selectively asserting an error signal in response to comparison of received error detection bits with calculated error detection bits; storing the received bits to temporary registers where the error signal deasserted and other otherwise asserting a further error signal where the error signal is asserted. Otherwise, predetermined configuration data is stored to the temporary registers. The content of the temporary registers is then sequentially stored to the configuration registers. A reset signal is generated in response to the further error signal to reset the configuration registers.
    Type: Application
    Filed: February 6, 2023
    Publication date: August 10, 2023
    Applicant: STMicroelectronics S.r.l.
    Inventors: Gianluca TORTORA, Mario BARONE
  • Publication number: 20230249960
    Abstract: This disclosure pertains to a microelectromechanical systems (MEMS) device with a tiltable structure, a fixed supporting structure, and an actuation structure with driving arms connected to the tiltable structure by elastic decoupling elements. Described herein, particularly, is a planar stop structure between the driving arms and the tiltable structure, which functions to limit movement in the tiltable plane. This stop structure includes a first projection/abutment surface pair formed by a projection extending from a driving arm and an abutment surface formed by a recess in the tiltable structure. The projection and abutment surface are adjacent and spaced apart in the device's rest condition.
    Type: Application
    Filed: April 13, 2023
    Publication date: August 10, 2023
    Applicant: STMicroelectronics S.r.l.
    Inventors: Nicolo' BONI, Roberto CARMINATI, Massimiliano MERLI