Patents Assigned to STMicroelectronics International N.V.
  • Publication number: 20240205055
    Abstract: Provided is a receiver circuit that receives a differential signal including positive and negative spikes. A first comparator produces an intermediate set signal that includes a pulse at each positive spike of the differential signal, and a second comparator produces an intermediate reset signal that includes a pulse at each negative spike of the differential signal. A sensing circuit extracts a common-mode voltage signal from the differential signal and asserts a control signal when the amplitude of the common-mode voltage signal exceeds a threshold. A logic circuit asserts a masking signal for an interval in response to asserting the control signal and de-asserts the masking signal in response to the interval elapsing. The logic circuit produces a corrected set signal. The logic circuit produces a corrected reset signal. An output circuit generates an output signal from the corrected set signal and the corrected reset signal.
    Type: Application
    Filed: December 6, 2023
    Publication date: June 20, 2024
    Applicant: STMicroelectronics International N.V.
    Inventors: Valerio GENNARI SANTORI, Carlo CURINA, Valerio BENDOTTI, Nicola DE CAMPO
  • Publication number: 20240202148
    Abstract: A computer system includes a central processing unit, a peripheral circuit configured to process data having a first format, a memory configured to store data intended for the peripheral circuit, the data having a second format distinct from the first format. The system includes a direct memory access controller configured, during a transmission of data from the memory towards the peripheral circuit, to recover data intended for the peripheral circuit and stored in the memory, to modify the format of the recovered data to obtain data having the first format, and to transmit the data according to the first format to the peripheral circuit. The central processing unit is configured to initialize a data transmission from the memory towards the peripheral circuit via the direct memory access controller.
    Type: Application
    Filed: December 12, 2023
    Publication date: June 20, 2024
    Applicant: STMicroelectronics International N.V.
    Inventors: Jean-Christophe BATLLO, Zied GRISSA, Delphine LE GOASCOZ, Gwendhal BORREMANS
  • Publication number: 20240199415
    Abstract: Disclosed herein is a process flow for forming a MEMS IMU including an accelerometer and a gyroscope each located in a separate sealed cavity maintained at a different pressure. Formation of the MEMS IMU includes the use of a first vHF release to etch a sacrificial layer underneath a structural layer containing the accelerometer and gyroscope and capping the device under formation to set both cavities at a first pressure. The floor of one of the cavities is formed to including a gas permeable layer. Formation further includes forming a chimney underneath the gas permeable layer and then performing a second vHF release to etch through the gas permeable layer and expose the cavity containing the gas permeable layer so that its pressure may be set to be different than that of the other cavity when the chimney is sealed.
    Type: Application
    Filed: December 20, 2022
    Publication date: June 20, 2024
    Applicant: STMicroelectronics International N.V.
    Inventors: Federico VERCESI, Andrea NOMELLINI, Paolo FERRARI
  • Publication number: 20240200980
    Abstract: A microelectromechanical sensor device has a detection structure and an associated electronic circuitry, configured to receive, when the device is powered, an external power supply voltage and provided with a voltage regulator generating a regulated voltage and with at least one voltage domain powered by the regulated voltage. The electronic circuitry has a power supply management core, always powered by the external power supply voltage and which controls the voltage regulator to selectively interrupt the power supply of the voltage domain to implement: a first power-down condition wherein the voltage regulator is disabled; and a second power-down condition wherein the voltage regulator is enabled to power the aforementioned voltage domain through the regulated voltage, the first and the second power-down conditions being associated with absence of data acquisition and/or processing by the sensor device.
    Type: Application
    Filed: November 17, 2023
    Publication date: June 20, 2024
    Applicant: STMicroelectronics International N.V.
    Inventors: Salvatore POLI, Carmela MARCHESE
  • Publication number: 20240206039
    Abstract: A device is configured to operate in a first mode of operation during which the device is configured to receive a first supply voltage in a contactless manner. The device includes a light emitting element and a first circuit. The first circuit is configured to receive a second supply voltage generated from the first supply voltage. A first current is generated from the first supply voltage, independent from the second voltage, and applied to the light emitting element which is selectively turned on.
    Type: Application
    Filed: December 14, 2023
    Publication date: June 20, 2024
    Applicant: STMicroelectronics International N.V.
    Inventors: Albin PEVEC, Nejc SUHADOLNIK, Damjan BERCAN, Maksimiljan STIGLIC
  • Publication number: 20240204127
    Abstract: The present description concerns an avalanche photodiode comprising: a main PN junction adapted to being reverse-biased; and a plurality of semiconductor regions including at least: a first epitaxial semiconductor region of a first conductivity type; and a second semiconductor region of the second conductivity type, said second region being arranged to at least partially surround the first region, and comprising surfaces in contact with surfaces of said first region. The present description also concerns a method of manufacturing such a photodiode.
    Type: Application
    Filed: December 14, 2023
    Publication date: June 20, 2024
    Applicant: STMicroelectronics International N.V.
    Inventors: Antonin ZIMMER, Dominique GOLANSKI, Sebastien PLACE, Guillaume MARCHAND
  • Publication number: 20240201024
    Abstract: An integrated circuit temperature sensor includes two diode-connected bipolar transistors having different sizes. A switching circuit selectively applies the base-emitter voltages generated across the two diode-connected bipolar transistors to the input of a buffer circuit. A control unit controls alternate switching by the switching circuit. An analog-to-digital converter has an input connected to an output of the buffer circuit. The analog-to-digital converter calculates a numeric value corresponding to a difference between the voltages generated across the two diode-connected bipolar transistors, this difference in voltages being proportional to absolute temperature.
    Type: Application
    Filed: December 12, 2023
    Publication date: June 20, 2024
    Applicant: STMicroelectronics International N.V.
    Inventors: Vincent BINET, Sebastien ORTET
  • Publication number: 20240194570
    Abstract: A common electrically conductive substrate includes substrate portions configured to host semiconductor chips. Adjacent substrate portions have mutually facing sides with elongate sacrificial connecting bars extending between the mutually facing sides. The electrically conductive substrate is cut along a length of the elongate sacrificial connecting bars to provide singulated individual substrate portions. The elongate sacrificial connecting bars are provided with an apertured structure comprising apertures distributed along the length of the elongate sacrificial connecting bars wherein the apertures provide zones of reduced resistance to cutting.
    Type: Application
    Filed: December 6, 2023
    Publication date: June 13, 2024
    Applicant: STMicroelectronics International N.V.
    Inventor: Mauro MAZZOLA
  • Publication number: 20240195405
    Abstract: A receiver circuit receives a differential signal that includes positive and negative spikes, and produces an output signal as a function of the differential signal. A first comparator produces an intermediate set signal that includes a pulse at each positive spike of the differential signal, and a second comparator produces an intermediate reset signal that includes a pulse at each negative spike of the differential signal. A logic circuit detects whether the digital signal switches between a first value and a second value, and whether the intermediate reset signal and the intermediate set signal include pulses lasting longer than a threshold. The logic produces a set correction signal and a reset correction signal. The logic circuit produces a corrected set signal and a corrected reset signal. An output circuit produces an output signal based on the corrected set signal and the corrected reset signal.
    Type: Application
    Filed: December 1, 2023
    Publication date: June 13, 2024
    Applicant: STMicroelectronics International N.V.
    Inventors: Carlo CURINA, Valerio BENDOTTI, Nicola DE CAMPO, Valerio GENNARI SANTORI
  • Publication number: 20240191996
    Abstract: A sensor system includes a plurality of inertial measurement units (IMU) and a control circuit. The control circuit is configured to receive sensor data from each of the inertial measurement units two alignment the timestamps of the sensor data, and to fuse the sensor data from the various IMUs. The control circuit detects whether the sensor data indicates a high degree movement or a low degree of movement and selects a high dynamic fusion process or a low dynamic fusion process based on the detected degree of movement.
    Type: Application
    Filed: December 13, 2022
    Publication date: June 13, 2024
    Applicant: STMicroelectronics International N.V.
    Inventors: Swapnil Sayan SAHA, Denis CIOCCA, Mahesh CHOWDHARY
  • Publication number: 20240188837
    Abstract: A blood pressure monitoring device includes a patch including two inertial measurement units placed adjacent to the skin of a user. The blood pressure monitoring device includes a control unit coupled to the patch and configured to receive sensor data from the inertial measurement units. The control unit includes an analysis model trained with multiple machine learning processes to generate blood pressure estimations based on the sensor data. A first general machine learning process trains the analysis model with a training set gathered from plurality of other individuals. The second general machine learning process retrains a portion of the analysis model with a second machine learning process utilizing individualized training set gathered from the user.
    Type: Application
    Filed: December 7, 2022
    Publication date: June 13, 2024
    Applicants: STMICROELECTRONICS, INC., STMicroelectronics International N.V.
    Inventors: Mahesh CHOWDHARY, Vijay KUMAR, Goldy, Kolin PAUL
  • Patent number: 12009830
    Abstract: A time-interleaved analog to digital converter (TI-ADC) includes a first sub-ADC configured to sample and convert an input analog signal to generate a first digital signal and a second sub-ADC configured to sample and convert said input analog signal to generate a second digital signal. Sampling by the second sub-ADC occurs with a time skew mismatch. A multiplexor interleaves the first and second digital signals to generate a third digital signal. A time skew mismatch error determination circuit processes the first and second digital signals to generate a time error corresponding to the time skew mismatch. A slope value of said third digital signal is determined and multiplied by the time error to generate a signal error. The signal error is summed with the third digital signal to generate a digital output signal which eliminates the error due to the time skew mismatch. This correction is performed in real time.
    Type: Grant
    Filed: December 6, 2022
    Date of Patent: June 11, 2024
    Assignee: STMicroelectronics International N.V.
    Inventors: Ankur Bal, Vikram Singh
  • Patent number: 12008200
    Abstract: A method for operating a touch sensing panel includes a touchscreen controller determining a first plurality of excitation signals in accordance with a first plurality of codes, wherein a sum of the first plurality of codes is a sequence of numbers having a same absolute value and signs alternating between adjacent numbers in the sequence of numbers. The method further includes the touchscreen controller transmitting each of the first plurality of excitation signals to a respective transmitting (TX) touch sensor of the touch sensing panel simultaneously during a first time frame. The method further includes the touchscreen controller determining touch strengths in accordance with a first plurality of output signals received by a plurality of receiving (RX) touch sensors of the touch sensing panel during the first time frame.
    Type: Grant
    Filed: February 14, 2023
    Date of Patent: June 11, 2024
    Assignee: STMicroelectronics International N.V.
    Inventor: Kien Beng Tan
  • Publication number: 20240186195
    Abstract: An integrated circuit package includes a support substrate having a mounting face and a lateral wall having an inner face and an outer face. The inner face delimits with the mounting face a cavity. The outer face includes a step extending outwardly of the package. An electronic chip disposed in the cavity and electrically connected to electrically-conductive contact pads. A sealing structure is bonded by a glue to an upper face of the lateral wall to seal the cavity. The glue does not spill out over the outer face of the lateral wall. Electrically-conductive connection elements are located over a lower face of the support substrate and electrically cooperate with the contact pads through an interconnection network located in the support substrate.
    Type: Application
    Filed: December 5, 2023
    Publication date: June 6, 2024
    Applicant: STMicroelectronics International N.V.
    Inventors: Laurent HERARD, Olivier ZANELLATO, Patrick LAURENT
  • Publication number: 20240186679
    Abstract: A waveguide has a first input/output for receiving/outputting a radio frequency (RF) wave and guiding the RF wave between the first input/output and a second input/output. An electronic integrated circuit chip is electrically connected at a front face to a metal level of a carrier substrate which includes a patch antenna. An electrically insulating embedding material surrounds the electronic chip and is disposed between the patch antenna and the first input/output of the waveguide which is at least in contact with the embedding material. The electronic chip cooperates electrically with the patch antenna so as to cause the patch antenna to transmit the RF wave to the first input/output through the embedding material. The electronic chip also processes an electrical signal from the patch antenna in response to the patch antenna receiving the radio frequency wave output by the first input/output via the embedding material.
    Type: Application
    Filed: December 1, 2023
    Publication date: June 6, 2024
    Applicant: STMicroelectronics International N.V.
    Inventors: Romain COFFY, Laurent SCHWARTZ, Ludovic FOURNEAUD
  • Publication number: 20240186834
    Abstract: A wireless electronics device includes an energy storage device for storing electrical energy. A frequency detection circuit detects whether a received radio frequency signal is in a first frequency range or in a second frequency range, the first and second frequency ranges being non-overlapping. A first communications circuit transmits a first return signal if the radio frequency signal is in the first frequency range and establishes wireless charging of the energy storage device according to a first protocol. A second communications circuit transmits a second return signal if the radio frequency signal is in the second frequency range and establishes wireless charging of the energy storage device according to a second protocol.
    Type: Application
    Filed: December 5, 2023
    Publication date: June 6, 2024
    Applicant: STMicroelectronics International N.V.
    Inventor: Rene WUTTE
  • Publication number: 20240186991
    Abstract: An integrated circuit includes an input pad and a Schmitt trigger coupled to the input pad. The Schmitt trigger includes a first inverter and a second inverter. The Schmitt trigger includes a pull-up transistor coupled to an input of the second inverter and configure to supply a high reference voltage to the input of the second inverter.
    Type: Application
    Filed: February 15, 2024
    Publication date: June 6, 2024
    Applicant: STMicroelectronics International N.V.
    Inventors: Manoj Kumar TIWARI, Saiyid Mohammad Irshad RIZVI
  • Publication number: 20240175762
    Abstract: A method includes generating a voltage proportional to absolute temperature, generating an uncorrected voltage complementary to absolute temperature, and generating a correction voltage. The method further includes selectively sampling the voltage proportional to absolute temperature, the uncorrected voltage complementary to absolute temperature, and the correction voltage, providing those sampled voltages to inputs of an integrator, and then quantizing outputs of the integrator to produce a bitstream. The method continues with causing the integrator to integrate the voltage proportional to absolute temperature or causing the integrator to add the correction voltage to the uncorrected voltage complementary to absolute temperature to produce a corrected voltage complementary to absolute temperature and then integrate the corrected voltage complementary to absolute temperature, depending upon a most recent bit of the bitstream.
    Type: Application
    Filed: February 5, 2024
    Publication date: May 30, 2024
    Applicant: STMicroelectronics International N.V.
    Inventors: Atul DWIVEDI, Pijush Kanti PANJA
  • Publication number: 20240178179
    Abstract: A semiconductor die is arranged at a die mounting location of an electrically conductive substrate. The electrically conductive substrate includes an array of electrically conductive leads having openings at the periphery of the electrically conductive substrate. An electrically conductive clip is arranged in a bridge-like position between the semiconductor die and an electrically conductive lead in the array of electrically conductive leads to provide electrical coupling therebetween. The electrically conductive clip has an end coupled to the electrically conductive lead, wherein the end includes: a planar proximal portion configured to contact the electrically conductive lead proximally of the openings, and a distal portion projecting beyond the proximal portion distally thereof, the distal portion provided with sculpturing configured to engage the openings to facilitate immobilizing the electrically conductive clip in the bridge-like position between the semiconductor chip and electrically conductive lead.
    Type: Application
    Filed: November 29, 2023
    Publication date: May 30, 2024
    Applicant: STMicroelectronics International N.V.
    Inventor: Mauro MAZZOLA
  • Publication number: 20240176864
    Abstract: An electronic device includes a debug port providing a communications interface for debugging purposes, a plurality of processing unit access ports, an authentication interface circuit configured to authenticate the external device, and a further access port coupled between the debug port and the authentication interface circuit. The further access port is configured to be in an open state in which communications are relayed between the debug port and the authentication interface circuit. The authentication interface circuit has registers including a status register capable of being read by the external device via the debug port and the further access port, the status register being configured to store an indication of the open or closed state of each of the processing unit access ports.
    Type: Application
    Filed: November 28, 2023
    Publication date: May 30, 2024
    Applicant: STMicroelectronics International N.V.
    Inventors: Xavier CHBANI, Nadia VAN-DEN-BOSSCHE