Patents Assigned to STMICROELECTRONICS (ROUSSET)
  • Patent number: 12125532
    Abstract: In an embodiment an electrically erasable programmable readable memory includes a plurality of memory cells organised in a memory plane arranged in a matrix fashion in rows and in columns, wherein each memory cell includes a state transistor having a source region, a drain region, an injection window situated on the side of the drain, a control gate and a floating gate and an isolation transistor having a source region, a drain region and a gate; and an isolation barrier including a buried layer and at least one wall extending from the buried layer to a surface of a substrate, wherein the at least one wall is perpendicular to the buried layer, and wherein the isolating barrier forms an interior substrate surrounding at least one of the memory cells and isolating it from the remainder of the substrate.
    Type: Grant
    Filed: August 27, 2021
    Date of Patent: October 22, 2024
    Assignee: STMicroelectronics (Rousset) SAS
    Inventor: Laurent Murillo
  • Patent number: 12124713
    Abstract: A system-on-chip includes a processor, a memory and a memory interface coupled to the processor and to the memory. The processor, in operation, generates memory access requests. The memory includes one or more physical banks divided into a succession of sectors, each sector having a size equal to a smallest erasable size of the memory. The memory interface, in operation, responds to receiving memory configuration information by storing logical memory bank configuration information in the one or more configuration registers, the logical memory bank configuration information assigning each sector of the one or more physical banks of the memory to a respective logical memory bank of one or more logical memory banks. The memory interface, in operation, controls access to the memory by the processor based on the logical memory bank configuration information stored in the one or more configuration registers.
    Type: Grant
    Filed: November 21, 2022
    Date of Patent: October 22, 2024
    Assignees: STMICROELECTRONICS S.r.l., STMICROELECTRONICS (ROUSSET) SAS
    Inventors: Francesco Bombaci, Andrea Tosoni
  • Patent number: 12125808
    Abstract: An integrated circuit memory includes a state transistor having a floating gate which stores a respective data value. A device for protecting the data stored in the memory includes a capacitive structure having a first electrically-conducting body coupled to the floating gate of the state transistor, a dielectric body, and a second electrically-conducting body coupled to a ground terminal. The dielectric body is configured, if an aqueous solution is brought into contact with the dielectric body, to electrically couple the floating gate and the ground terminal so as to modify the charge on the floating gate and to lose the corresponding data. Otherwise, the dielectric body is configured to electrically isolate the floating gate and the ground terminal.
    Type: Grant
    Filed: June 7, 2023
    Date of Patent: October 22, 2024
    Assignee: STMicroelectronics (Rousset) SAS
    Inventors: Pascal Fornara, Fabrice Marinet
  • Patent number: 12125533
    Abstract: In an embodiment a non-volatile memory device includes a memory plane including at least one memory area including an array of memory cells having two rows and N columns, wherein each memory cell comprises a state transistor having a control gate and a floating gate selectable by a vertical selection transistor buried in a substrate and including a buried selection gate, and wherein each column of memory cells includes a pair of twin memory cells, two selection transistors of the pair of twin memory cells having a common selection gate and a processing device configured to store in the memory area information including a succession of N bits so that, with exception of the last bit of the succession, a current bit of the succession is stored in two memory cells located on the same row and on two adjacent columns and a current bit and the following bit are respectively stored in two twin cells.
    Type: Grant
    Filed: July 12, 2022
    Date of Patent: October 22, 2024
    Assignees: STMicroelectronics (Rousset) SAS, STMicroelectronics International N. V.
    Inventors: Francesco La Rosa, Marco Bildgen
  • Publication number: 20240347481
    Abstract: An integrated circuit includes a substrate, an interconnection part, and an isolating region located between the substrate and the interconnection part. A decoy structure is located within the isolating region and includes a silicided sector which is electrically isolated from the substrate.
    Type: Application
    Filed: June 25, 2024
    Publication date: October 17, 2024
    Applicant: STMicroelectronics (Rousset) SAS
    Inventors: Julien DELALLEAU, Christian RIVERO
  • Patent number: 12119310
    Abstract: A semiconductor wafer includes first zones containing integrated circuits, each first zone including a substrate and a sealing ring at a periphery of the substrate. The first zones are separated from each other by second zones defining cutting lines or paths. The integrated circuit includes an electrically conductive fuse that extends between a first location inside the integrated circuit and a second location situated outside the integrated circuit beyond one of the cutting lines. This electrically conductive fuse includes a portion that passes through the sealing ring and another portion that straddles the adjacent cutting line. The portion of the fuse that passes through is electrically isolated from the sealing ring and from the substrate. The straddling portion is configured to be sliced, when cutting the wafer along the cutting line, so as to cause the fuse to change from an electrical on state to an electrical off state.
    Type: Grant
    Filed: June 15, 2023
    Date of Patent: October 15, 2024
    Assignee: STMicroelectronics (Rousset) SAS
    Inventor: Pascal Fornara
  • Patent number: 12113444
    Abstract: In an embodiment, a phase circuit includes: a bidirectional output stage configured to be coupled between a first battery and a second battery; a memory configured to store a number of active phases, and an identifier; and a synchronization circuit configured to receive a first clock signal and determine a start time of a switching cycle of the bidirectional output stage based on the number of active phases, the identifier, and the first clock signal, where the phase circuit is configured to control the timing of the switching of the bidirectional output stage based on the start time.
    Type: Grant
    Filed: July 1, 2022
    Date of Patent: October 8, 2024
    Assignees: STMicroelectronics S.r.l., STMicroelectronics (Rousset) SAS
    Inventors: Vanni Poletto, Antoine Pavlin
  • Patent number: 12107504
    Abstract: In an embodiment, a switching power supply includes: an output stage; a clock generator configured to generate a first clock signal; and a control circuit configured to control the output stage based on the first clock signal, wherein the switching power supply is configured to have a first operating mode synchronized by the first clock signal, and a second operating mode that is asynchronous, wherein the clock generator is configured to maintain the first clock signal at a constant value during the second operating mode.
    Type: Grant
    Filed: January 10, 2022
    Date of Patent: October 1, 2024
    Assignee: STMicroelectronics (Rousset) SAS
    Inventors: Sebastien Ortet, Vincent Binet
  • Publication number: 20240312977
    Abstract: An integrated circuit includes a semiconductor substrate, a conductive layer above a front face of the substrate, a first metal track in a first metal level, and a pre-metal dielectric region located between the conductive layer and the first metal level. A metal-insulator-metal-type capacitive structure is located in a trench within the pre-metal dielectric region. The capacitive structure includes a first metal layer electrically connected with the conductive layer, a second metal layer electrically connected with the first metal track, and a dielectric layer between the first metal layer and the second metal layer.
    Type: Application
    Filed: May 20, 2024
    Publication date: September 19, 2024
    Applicant: STMicroelectronics (Rousset) SAS
    Inventors: Pascal FORNARA, Roberto SIMOLA
  • Patent number: 12096640
    Abstract: The disclosure concerns a resistive memory cell, including a stack of a selector, of a resistive element, and of a layer of phase-change material, the selector having no physical contact with the phase-change material. In one embodiment, the selector is an ovonic threshold switch formed on a conductive track of a metallization level.
    Type: Grant
    Filed: March 31, 2023
    Date of Patent: September 17, 2024
    Assignee: STMicroelectronics (Rousset) SAS
    Inventor: Philippe Boivin
  • Patent number: 12086008
    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: Grant
    Filed: September 12, 2022
    Date of Patent: September 10, 2024
    Assignees: STMicroelectronics (Rousset) SAS, STMicroelectronics Design and Application S.R.O.
    Inventors: Jerome Lacan, Remi Collette, Christophe Eva, Milan Komarek
  • Patent number: 12088085
    Abstract: An integrated circuit includes an overvoltage protection circuit. The overvoltage protection circuit detects overvoltage events at a pad of the integrated circuit. The overvoltage protection circuit generates a max voltage signal that is the greater of the voltage at the pad and a supply voltage of the integrated circuit. The overvoltage protection circuit disables a PMOS transistor coupled to the pad by supplying the max voltage signal to the gate of the PMOS transistor when an overvoltage event is present at the pad.
    Type: Grant
    Filed: January 20, 2023
    Date of Patent: September 10, 2024
    Assignees: STMICROELECTRONICS (ROUSSET) SAS, STMicroelectronics International N.V.
    Inventors: Manoj Kumar, Ravinder Kumar, Nicolas Demange
  • Patent number: 12087683
    Abstract: A method of manufacturing electronic chips containing low-dispersion components, including the steps of: mapping the average dispersion of said components according to their position in test semiconductor wafers; associating, with each component of each chip, auxiliary correction elements; activating by masking the connection of the correction elements to each component according to the initial mapping.
    Type: Grant
    Filed: December 30, 2021
    Date of Patent: September 10, 2024
    Assignee: STMICROELECTRONICS (ROUSSET) SAS
    Inventors: François Tailliet, Guilhem Bouton
  • Patent number: 12079679
    Abstract: A contactless communication device includes an electronic integrated circuit chip and an antenna coupled to the electronic integrated circuit chip to supply an electric signal for powering the electronic integrated circuit chip. An ambient luminosity detection element is coupled to the electronic integrated circuit chip. An ambient luminosity level measured by the ambient luminosity detection element is supplied to the electronic integrated circuit chip for comparison to a darkness threshold. A contactless communication is authorized only when the measured ambient luminosity level is greater than the darkness threshold.
    Type: Grant
    Filed: February 8, 2023
    Date of Patent: September 3, 2024
    Assignee: STMicroelectronics (Rousset) SAS
    Inventor: Nicolas Cordier
  • Patent number: 12081204
    Abstract: A power switch device includes a first terminal intended to be connected to a source of a first supply potential, a second terminal configured to supply a second potential, and a third terminal intended to be connected to a second source of a third supply potential. The device includes a first PMOS transistor having a source connected to the second terminal and a drain connected to the third terminal, a second PMOS transistor having a source connected to the second terminal, and a third PMOS transistor having a source connected to the first terminal and a drain connected to the drain of the second transistor. A control circuit generates gate control signals to control operation of the first, second and third PMOS transistors dependent on the first, second, and third supply potentials.
    Type: Grant
    Filed: August 10, 2022
    Date of Patent: September 3, 2024
    Assignee: STMicroelectronics (Rousset) SAS
    Inventor: Laurent Lopez
  • Patent number: 12081224
    Abstract: In an embodiment a method includes generating a low-frequency clock signal having a first frequency, in a standby mode and in a run mode of the CPU, generating a high-frequency clock signal having a second frequency higher than the first frequency, in the run mode, updating a value of the reference time base at each period of the low-frequency clock signal in the standby mode, and accessing the counter register with the high-frequency clock signal in the run mode.
    Type: Grant
    Filed: June 17, 2022
    Date of Patent: September 3, 2024
    Assignees: STMicroelectronics (Rousset) SAS, STMicroelectronics (Grand Ouest) SAS
    Inventors: Laurent Meunier, Vincent Pascal Onde
  • Patent number: 12072755
    Abstract: The present description concerns an electronic device having an antenna configured to receive a radio frequency signal. The electronic device further includes a control unit. The control unit is off, and the antenna receives a radio frequency signal. The antenna is configured to deliver a first voltage representative of the radio frequency signal to power the control unit with the voltage for the duration of the booting of the control unit.
    Type: Grant
    Filed: September 23, 2022
    Date of Patent: August 27, 2024
    Assignee: STMicroelectronics (Rousset) SAS
    Inventors: Denis Roman, Jean-Louis Demessine, Lionel Chastillon, Renaud Lemonnier
  • Publication number: 20240276894
    Abstract: The present description concerns a device including phase-change memory cells, each memory cell including a first resistive element in lateral contact with a second element made of a phase-change material.
    Type: Application
    Filed: April 25, 2024
    Publication date: August 15, 2024
    Applicants: STMicroelectronics (Crolles 2) SAS, STMICROELECTRONICS (ROUSSET) SAS
    Inventors: Philippe BOIVIN, Roberto SIMOLA, Yohann MOUSTAPHA-RABAULT
  • Patent number: 12063775
    Abstract: The present description concerns a ROM including at least one first rewritable memory cell. In an embodiment, a method of manufacturing a read-only memory (ROM) comprising a plurality of memory cells is proposed. Each of the plurality of memory cells includes a rewritable first transistor and a rewritable second transistor. An insulated gate of the rewritable first transistor is connected to an insulated gate of the rewritable second transistor. The method includes successively depositing, on a semiconductor structure, a first insulating layer and a first gate layer, wherein the first insulating layer is arranged between the semiconductor structure and the first gate layer, wherein the rewritable second transistor further includes a well-formed between an associated first insulating layer and the semiconductor structure, and wherein the rewritable first insulating layer is in direct contact with the semiconductor structure; and successively depositing a second insulating layer and a second gate layer.
    Type: Grant
    Filed: October 11, 2023
    Date of Patent: August 13, 2024
    Assignees: STMicroelectronics (Rousset) SAS, STMicroelectronics (Crolles 2) SAS
    Inventors: Abderrezak Marzaki, Mathieu Lisart, Benoit Froment
  • Publication number: 20240267050
    Abstract: A system on chip includes a programmable logic array. The system on chip also includes a signal conditioner coupled to a data input of the programmable logic array and configured to condition a data signal prior to processing the data signal with the programmable logic array. The signal conditioner can selectively condition the signal by one or both of synchronizing the data signal with a clock signal of the programmable logic array and generating a pulse from the data signal with an edge detector.
    Type: Application
    Filed: April 19, 2024
    Publication date: August 8, 2024
    Applicant: STMICROELECTRONICS (ROUSSET) SAS
    Inventors: Jean-Francois LINK, Mark WALLIS, Joran PANTEL