Patents Assigned to STMICROELECTRONICS (ROUSSET)
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Patent number: 12125532Abstract: 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: GrantFiled: August 27, 2021Date of Patent: October 22, 2024Assignee: STMicroelectronics (Rousset) SASInventor: Laurent Murillo
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Patent number: 12124713Abstract: 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: GrantFiled: November 21, 2022Date of Patent: October 22, 2024Assignees: STMICROELECTRONICS S.r.l., STMICROELECTRONICS (ROUSSET) SASInventors: Francesco Bombaci, Andrea Tosoni
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Patent number: 12125808Abstract: 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: GrantFiled: June 7, 2023Date of Patent: October 22, 2024Assignee: STMicroelectronics (Rousset) SASInventors: Pascal Fornara, Fabrice Marinet
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Patent number: 12125533Abstract: 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: GrantFiled: July 12, 2022Date of Patent: October 22, 2024Assignees: STMicroelectronics (Rousset) SAS, STMicroelectronics International N. V.Inventors: Francesco La Rosa, Marco Bildgen
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Publication number: 20240347481Abstract: 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: ApplicationFiled: June 25, 2024Publication date: October 17, 2024Applicant: STMicroelectronics (Rousset) SASInventors: Julien DELALLEAU, Christian RIVERO
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Patent number: 12119310Abstract: 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: GrantFiled: June 15, 2023Date of Patent: October 15, 2024Assignee: STMicroelectronics (Rousset) SASInventor: Pascal Fornara
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Patent number: 12113444Abstract: 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: GrantFiled: July 1, 2022Date of Patent: October 8, 2024Assignees: STMicroelectronics S.r.l., STMicroelectronics (Rousset) SASInventors: Vanni Poletto, Antoine Pavlin
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Patent number: 12107504Abstract: 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: GrantFiled: January 10, 2022Date of Patent: October 1, 2024Assignee: STMicroelectronics (Rousset) SASInventors: Sebastien Ortet, Vincent Binet
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Publication number: 20240312977Abstract: 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: ApplicationFiled: May 20, 2024Publication date: September 19, 2024Applicant: STMicroelectronics (Rousset) SASInventors: Pascal FORNARA, Roberto SIMOLA
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Patent number: 12096640Abstract: 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: GrantFiled: March 31, 2023Date of Patent: September 17, 2024Assignee: STMicroelectronics (Rousset) SASInventor: Philippe Boivin
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Patent number: 12086008Abstract: 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: GrantFiled: September 12, 2022Date of Patent: September 10, 2024Assignees: STMicroelectronics (Rousset) SAS, STMicroelectronics Design and Application S.R.O.Inventors: Jerome Lacan, Remi Collette, Christophe Eva, Milan Komarek
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Patent number: 12088085Abstract: 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: GrantFiled: January 20, 2023Date of Patent: September 10, 2024Assignees: STMICROELECTRONICS (ROUSSET) SAS, STMicroelectronics International N.V.Inventors: Manoj Kumar, Ravinder Kumar, Nicolas Demange
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Patent number: 12087683Abstract: 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: GrantFiled: December 30, 2021Date of Patent: September 10, 2024Assignee: STMICROELECTRONICS (ROUSSET) SASInventors: François Tailliet, Guilhem Bouton
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Patent number: 12079679Abstract: 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: GrantFiled: February 8, 2023Date of Patent: September 3, 2024Assignee: STMicroelectronics (Rousset) SASInventor: Nicolas Cordier
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Patent number: 12081204Abstract: 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: GrantFiled: August 10, 2022Date of Patent: September 3, 2024Assignee: STMicroelectronics (Rousset) SASInventor: Laurent Lopez
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Patent number: 12081224Abstract: 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: GrantFiled: June 17, 2022Date of Patent: September 3, 2024Assignees: STMicroelectronics (Rousset) SAS, STMicroelectronics (Grand Ouest) SASInventors: Laurent Meunier, Vincent Pascal Onde
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Patent number: 12072755Abstract: 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: GrantFiled: September 23, 2022Date of Patent: August 27, 2024Assignee: STMicroelectronics (Rousset) SASInventors: Denis Roman, Jean-Louis Demessine, Lionel Chastillon, Renaud Lemonnier
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Publication number: 20240276894Abstract: 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: ApplicationFiled: April 25, 2024Publication date: August 15, 2024Applicants: STMicroelectronics (Crolles 2) SAS, STMICROELECTRONICS (ROUSSET) SASInventors: Philippe BOIVIN, Roberto SIMOLA, Yohann MOUSTAPHA-RABAULT
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Patent number: 12063775Abstract: 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: GrantFiled: October 11, 2023Date of Patent: August 13, 2024Assignees: STMicroelectronics (Rousset) SAS, STMicroelectronics (Crolles 2) SASInventors: Abderrezak Marzaki, Mathieu Lisart, Benoit Froment
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Publication number: 20240267050Abstract: 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: ApplicationFiled: April 19, 2024Publication date: August 8, 2024Applicant: STMICROELECTRONICS (ROUSSET) SASInventors: Jean-Francois LINK, Mark WALLIS, Joran PANTEL