Patents Assigned to STMicroelectronics
  • Patent number: 11611280
    Abstract: A DC-DC converter includes: an transformer having a primary winding and a secondary winding magnetically coupled to the primary winding; a power oscillator applying an oscillating signal to the primary to transmit a power signal to the secondary winding; a rectifier connected to the secondary winding of the transformer to obtain an output DC voltage by rectification of the power signal; comparison circuitry to generate an error signal representing a difference between the output DC voltage and a reference voltage; a transmitter connected to the secondary winding of the transformer to apply an amplitude modulation to the power signal at the secondary winding of the transformer in response to the error signal to thereby produce an amplitude modulated signal at the primary winding; and a receiver and control circuit connected to the primary winding to control an amplitude of the oscillating signal as a function of the amplitude modulated signal.
    Type: Grant
    Filed: August 17, 2021
    Date of Patent: March 21, 2023
    Assignee: STMicroelectronics S.r.l.
    Inventors: Alessandro Parisi, Nunzio Greco, Nunzio Spina, Egidio Ragonese, Giuseppe Palmisano
  • Patent number: 11610849
    Abstract: A leadframe has a die pad area and an outer layer of a first metal having a first oxidation potential. The leadframe is placed in contact with a solution containing a second metal having a second oxidation potential, the second oxidation potential being more negative than the first oxidation potential. Radiation energy is then applied to the die pad area of the leadframe contacted with the solution to cause a local increase in temperature of the leadframe. As a result of the temperature increase, a layer of said second metal is selectively provided at the die pad area of the leadframe by a galvanic displacement reaction. An oxidation of the outer layer of the leadframe is then performed to provide an enhancing layer which counters device package delamination.
    Type: Grant
    Filed: December 1, 2020
    Date of Patent: March 21, 2023
    Assignee: STMicroelectronics S.r.l.
    Inventor: Paolo Crema
  • Patent number: 11610025
    Abstract: An integrated circuit includes a secure hardware environment having a first input that receives a key number. A key generation device generates a secret key from the key number and a unique key. A signature generation device generates a signature associated with the key number. A second input of the secure hardware environment receives encrypted binary data. A decryption device operates to decrypt the received encrypted binary data using the secret key. A third input the secure hardware environment receives an authentication signature. An authentication device authorizes use of the secret key to decrypt only if the signature generated by the signature generation device is identical to the authentication signature.
    Type: Grant
    Filed: January 28, 2021
    Date of Patent: March 21, 2023
    Assignees: STMicroelectronics (Grenoble 2) SAS, STMicroelectronics (Alps) SAS
    Inventors: Gilles Pelissier, Nicolas Anquet, Delphine Le-Goascoz
  • Patent number: 11610813
    Abstract: An interconnection element of an interconnection structure of an integrated circuit is manufactures by a method where a cavity is etched in an insulating layer. A silicon nitride layer is then deposited on walls and a bottom of the cavity. The nitrogen atom concentration in the silicon nitride layer increasing as a distance from an exposed surface of the silicon nitride layer increases. A copper layer is deposited on the silicon nitride layer. The cavity is further filled with copper. A heating process is performed after the deposition of the copper layer, to convert the copper layer and the silicon nitride layer to form a copper silicide layer which has a nitrogen atom concentration gradient corresponding to the gradient of the silicon nitride layer.
    Type: Grant
    Filed: September 29, 2021
    Date of Patent: March 21, 2023
    Assignee: STMicroelectronics (Crolles 2) SAS
    Inventor: Magali Gregoire
  • Patent number: 11610988
    Abstract: A device includes a semiconductor substrate. A step is formed at a periphery of the semiconductor substrate. A first layer, made of polysilicon doped in oxygen, is deposited on top of and in contact with a first surface of the substrate. This first layer extends at least on a wall and bottom of the step. A second layer, made of glass, is deposited on top of the first layer and the edges of the first layer. The second layer forms a boss between the step and a central area of the device.
    Type: Grant
    Filed: March 1, 2021
    Date of Patent: March 21, 2023
    Assignee: STMicroelectronics (Tours) SAS
    Inventors: Patrick Hauttecoeur, Vincent Caro
  • Patent number: 11610880
    Abstract: Power MOS device, in which a power MOS transistor has a drain terminal that is coupled to a power supply node, a gate terminal that is coupled to a drive node and a source terminal that is coupled to a load node. A detection MOS transistor has a drain terminal that is coupled to a detection node, a gate terminal that is coupled to the drive node and a source terminal that is coupled to the load node. A detection resistor has a first terminal coupled to the power supply node and a second terminal coupled to the detection node.
    Type: Grant
    Filed: February 23, 2021
    Date of Patent: March 21, 2023
    Assignee: STMicroelectronics S.r.l.
    Inventor: Davide Giuseppe Patti
  • Patent number: 11609402
    Abstract: An electronic device includes a carrier substrate having a front face. An electronic chip is mounted on the front face of the carrier substrate and includes an optical component. An encapsulation cover is mounted on top of the front face of the carrier substrate and bounds a chamber within which the chip is situated. A front opening extends through the cover and is situated in front of the optical component. An optical element, designed to allow light to pass, is mounted within the chamber at a position which covers the front opening of the encapsulation cover. The optical element includes a central region designed to deviate the light and having an optical axis aligned with the front opening and the optical component. A positioning pattern is provided on the optical element to assist with mounting the optical element to the cover and mounting the cover to the carrier substrate.
    Type: Grant
    Filed: September 17, 2019
    Date of Patent: March 21, 2023
    Assignees: STMicroelectronics (Grenoble 2) SAS, STMicroelectronics (Research & Development) Limited
    Inventors: Nicolas Mastromauro, Roy Duffy, Karine Saxod
  • Publication number: 20230085493
    Abstract: A system includes a control unit configured to be electrically connected to an input of a memory via a communication interface. The control unit includes a first power supply sector configured to be powered when the control unit is in an operating mode and a second power supply sector configured to be powered when the control unit is in the operating mode and in a low consumption mode. In the first power supply sector, the control unit includes a first configuration circuit operating to configure a polarization value of the input of the memory via the communication interface for the operating mode. In the second power supply sector, the control unit includes a second configuration circuit operating to configure a polarization value of the input of the memory via the communication interface for the low consumption mode.
    Type: Application
    Filed: September 12, 2022
    Publication date: March 16, 2023
    Applicants: STMicroelectronics (Rousset) SAS, STMicroelectronics Design and Application S.R.O.
    Inventors: Jerome LACAN, Remi COLLETTE, Christophe EVA, Milan KOMAREK
  • Publication number: 20230083632
    Abstract: A MEMS inertial sensor includes a supporting structure and an inertial structure. The inertial structure includes at least one inertial mass, an elastic structure, and a stopper structure. The elastic structure is mechanically coupled to the inertial mass and to the supporting structure so as to enable a movement of the inertial mass in a direction parallel to a first direction, when the supporting structure is subjected to an acceleration parallel to the first direction. The stopper structure is fixed with respect to the supporting structure and includes at least one primary stopper element and one secondary stopper element. If the acceleration exceeds a first threshold value, the inertial mass abuts against the primary stopper element and subsequently rotates about an axis of rotation defined by the primary stopper element. If the acceleration exceeds a second threshold value, rotation of the inertial mass terminates when the inertial mass abuts against the secondary stopper element.
    Type: Application
    Filed: November 16, 2022
    Publication date: March 16, 2023
    Applicant: STMicroelectronics S.r.l.
    Inventors: Francesco RIZZINI, Gabriele GATTERE, Sarah ZERBINI
  • Publication number: 20230080696
    Abstract: System, method, and circuitry for generating content for a programmable computing device based on user-selected configuration information. A settings registry is generated based on the user's selections. The settings registry and the user selected configuration information is utilized to generate the content, such as code, data, parameters, settings, etc. When the content is provided to the programmable computing device, the content initializes, configures, or controls one or more software and hardware aspects of the programmable computing device, such as boot sequence configurations, internal peripheral configurations, states of the programmable computing device, transitions between states of the programmable computing device, etc., and various combinations thereof.
    Type: Application
    Filed: August 29, 2022
    Publication date: March 16, 2023
    Applicants: STMICROELECTRONICS SA, STMicroelectronics (Grand Ouest) SAS
    Inventors: Frederic RUELLE, Laurent MEUNIER, Bechir JABRI, Emmanuel GRANDIN, Nabil SAFI, Ghaith OUESLATI, Yohann MARTINIAULT, Jerome CAILLET
  • Publication number: 20230081414
    Abstract: A voltage controlled oscillator includes a series resonant circuit having a resonance frequency and an active voltage driving device coupled to the series resonant circuit. The active voltage driving device provides a driving voltage and has an output negative resistance in an operative voltage range at the resonance frequency. The active voltage driving device includes a cross-coupled differential pair having voltage supply terminals providing the driving voltage. The series resonant circuit is coupled between the voltage supply terminals of the cross-coupled differential pair.
    Type: Application
    Filed: August 24, 2022
    Publication date: March 16, 2023
    Applicant: STMicroelectronics S.r.l.
    Inventors: Alessandro FRANCESCHIN, Andrea MAZZANTI, Andrea PALLOTTA
  • Publication number: 20230084985
    Abstract: Techniques and systems are provided for implementing a convolutional neural network. One or more convolution accelerators are provided that each include a feature line buffer memory, a kernel buffer memory, and a plurality of multiply-accumulate (MAC) circuits arranged to multiply and accumulate data. In a first operational mode the convolutional accelerator stores feature data in the feature line buffer memory and stores kernel data in the kernel data buffer memory. In a second mode of operation, the convolutional accelerator stores kernel decompression tables in the feature line buffer memory.
    Type: Application
    Filed: November 18, 2022
    Publication date: March 16, 2023
    Applicants: STMICROELECTRONICS S.r.l., STMicroelectronics International N.V.
    Inventors: Thomas BOESCH, Giuseppe DESOLI, Surinder Pal SINGH, Carmine CAPPETTA
  • Publication number: 20230078144
    Abstract: System, method, and circuitry for generating content for a programmable computing device based on user-selected configuration information. A settings registry is generated based on the user's selections. The settings registry and the user selected configuration information is utilized to generate the content, such as code, data, parameters, settings, etc. When the content is provided to the programmable computing device, the content initializes, configures, or controls one or more software and hardware aspects of the programmable computing device, such as boot sequence configurations, internal peripheral configurations, states of the programmable computing device, transitions between states of the programmable computing device, etc., and various combinations thereof.
    Type: Application
    Filed: August 29, 2022
    Publication date: March 16, 2023
    Applicants: STMICROELECTRONICS SA, STMicroelectronics (Grand Ouest) SAS
    Inventors: Frederic RUELLE, Emmanuel GRANDIN, Bechir JABRI
  • Publication number: 20230081711
    Abstract: A wire bonding tool includes a tool body with a tubular cavity extending through the tool body and a distal end. The distal end includes a flared opening at an end of the tubular cavity. The tool body further includes at least one protrusion at a level of the distal end.
    Type: Application
    Filed: September 13, 2022
    Publication date: March 16, 2023
    Applicant: STMicroelectronics (Grenoble 2) SAS
    Inventors: Didier CAMPOS, Fabien QUERCIA, Justin CATANIA
  • Patent number: 11605702
    Abstract: A capacitive element of an integrated circuit includes first and second electrodes. The first electrode is formed by a first electrically conductive layer located above a semiconductor well doped with a first conductivity type. The second electrode is formed by a second electrically conductive layer located above the first electrically conductive layer of the semiconductor well. The second electrode is further formed by a doped surface region within the semiconductor well that is heavily doped with a second conductivity type opposite the first conductivity type, wherein the doped surface region is located under the first electrically conductive layer. An inter-electrode dielectric area electrically separates the first electrode and the second electrode.
    Type: Grant
    Filed: February 2, 2021
    Date of Patent: March 14, 2023
    Assignee: STMicroelectronics (Rousset) SAS
    Inventor: Abderrezak Marzaki
  • Patent number: 11604082
    Abstract: An embodiment of the present disclosure relates to a method of detection of a touch contact by a sensor including a first step of comparison of a voltage with a first voltage threshold; and a second step of comparison of the voltage with a second voltage threshold, the second step being implemented if the first voltage threshold has been reached within a duration shorter than a first duration threshold, the second voltage threshold being higher than the first voltage threshold.
    Type: Grant
    Filed: February 9, 2021
    Date of Patent: March 14, 2023
    Assignees: STMicroelectronics SA, STMicroelectronics (Grenoble 2) SAS, STMicroelectronics (Rousset) SAS
    Inventors: Laurent Beyly, Olivier Richard, Kenichi Oku
  • Patent number: 11604265
    Abstract: In one embodiment, an imaging device includes a light-emitting device, a driving circuit, a return single-photon avalanche diode (SPAD) array and readout circuitry. The driving circuit generates a driving signal, and the light-emitting device generates an optical pulse based on the driving signal. The return SPAD array is configured to receive a first portion of the optical pulse that is reflected by an object in an image scene. The readout circuitry receives a signal indicative of the received first portion of the optical pulse, and a signal indicative of the driving signal, and determines a distance between the imaging device and the object based on a difference between a time of receiving the signal indicative of the received first portion of the optical pulse and a time of receiving the signal indicative of the driving signal.
    Type: Grant
    Filed: November 26, 2019
    Date of Patent: March 14, 2023
    Assignee: STMicroelectronics (Research & Development) Limited
    Inventors: Caixin Zhuang, John Kevin Moore
  • Patent number: 11606341
    Abstract: A CAN device is provided with an encryption function and a decryption function. The encryption function allows messages to be encrypted and put onto a CAN bus. The decryption function allows the messages on the CAN bus to be decrypted. The encryption and decryption functions share keys which change over the course of time.
    Type: Grant
    Filed: December 7, 2020
    Date of Patent: March 14, 2023
    Assignees: STMicroelectronics (Grenoble 2) SAS, TECHNOLOGICAL EDUCATIONAL INSTITUTE OF CRETE, Energica Motor Company S.p.A.
    Inventors: Antonio-Marcello Coppola, Georgios Kornaros, Giovanni Gherardi
  • Patent number: 11604371
    Abstract: In one embodiment, an electro-optical modulator includes a waveguide having a first major surface and a second major surface opposite the first major surface. A cavity is disposed in the waveguide. Multiple quantum wells are disposed in the cavity.
    Type: Grant
    Filed: April 29, 2022
    Date of Patent: March 14, 2023
    Assignee: STMicroelectronics (Crolles 2) SAS
    Inventor: Charles Baudot
  • Patent number: 11604541
    Abstract: A circuit includes a force driver to apply a force signal to a force node associated with a mutual capacitance to be sensed, and a charge to voltage converter having an input coupled to receive a sense signal from a sense node associated with the mutual capacitance to be sensed. The charge to voltage converter includes an integrator circuit to integrate the sense signal to sense the mutual capacitance, an input switch between the input of the charge to voltage converter and an input of the integrator circuit, and a reset switch between an output of the integrator circuit and the input of the integrator circuit. A control circuit controls generation of the force signal to alternate between at least two different frequencies and generates, for each half cycle of the force signal, a first signal for closing the input switch and a second signal for closing the reset switch.
    Type: Grant
    Filed: August 31, 2020
    Date of Patent: March 14, 2023
    Assignee: STMicroelectronics Asia Pacific Pte Ltd
    Inventor: Leonard Liviu Dinu