Patents Assigned to STMicroelectronics International N.V.
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Publication number: 20250167679Abstract: A half bridge circuit includes two GaN high electron mobility transistors (HEMT). A driver circuit generates a high side and low side driver signals corresponding to square wave. A driver deadtime is the period between during which both driver signals are low. A half bridge adjustment circuit is coupled between the driver and the half bridge circuit and generates a modified high side driver signal and a modified low side driver signal, each including a transition from a low voltage to an intermediate voltage during the corresponding deadtime and a transition from the intermediate voltage to a high voltage at an end of the corresponding deadtime. The half bridge adjustment circuit drives the gate terminals of the high side and low side transistors with the modified high side and low side driver signals.Type: ApplicationFiled: November 20, 2023Publication date: May 22, 2025Applicant: STMicroelectronics International N.V.Inventors: Sebastiano MESSINA, Salvatore MITA, Natale AIELLO
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Publication number: 20250167067Abstract: A substrate includes a center portion and a peripheral portion connected to the center portion by a flexible coupling region. A first die is mounted to an upper surface of the substrate at the center portion and a second die is mounted to the upper surface of the substrate at the peripheral portion. A heatsink includes a base plate, fins extending from an upper surface of the base plate and tabs extending from a lower surface of the base plate. The tabs of the heatsink are mounted to the upper surface of the substrate at the center portion, and the lower surface of the base plate is thermally coupled to a back of the first die. The peripheral portion is folded relative to the center portion at the flexible coupling region. An outer surface of the fin of the heatsink is thermally coupled to a back of the second device.Type: ApplicationFiled: October 7, 2024Publication date: May 22, 2025Applicant: STMicroelectronics International N.V.Inventor: Jefferson Sismundo TALLEDO
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Publication number: 20250167148Abstract: The present description concerns a method of manufacturing an electronic circuit comprising, in the order, the forming on a semiconductor substrate comprising a surface of at least one conductive pad extending over the surface and having sides inclined with respect to the surface, the forming of a first insulating layer on the pad, the deposition of a resin layer and the forming of an opening in the resin layer exposing the entire pad, the plasma etching of the first insulating layer in the opening, which results in the forming of first compounds on the etched edges of the first insulating layer and of second compounds on the pad, the removal of the resin layer, the removal of the first compounds, the removal of the second compounds, and the forming of a second insulating layer on the pad.Type: ApplicationFiled: November 6, 2024Publication date: May 22, 2025Applicant: STMicroelectronics International N.V.Inventors: Pierre BAR, Hugo AUDOUIN
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Publication number: 20250167041Abstract: A process that helps ensure uniform height of conductive structures formed among intermetal dielectric layers of a wafer. When a metal layer is deposited on a first intermetal dielectric layer, a sealing layer is formed on the metal layer either before or after the metal layer is patterned to form metal interconnect structures. A first interlevel dielectric sub-layer is then formed on the sealing layer. A chemical mechanical planarization (CMP) process is then performed on the first interlevel dielectric sub-layer using the sealing layer as an etch stop. A second interlevel dielectric sub-layer is then formed on the first interlevel dielectric sub-layer.Type: ApplicationFiled: November 21, 2023Publication date: May 22, 2025Applicant: STMicroelectronics International N.V.Inventors: Fabrizio Fausto Renzo TOIA, Daniele CAPELLI, Samuele SCIARRILLO
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Publication number: 20250167100Abstract: Packaged electronic device, having a C-shaped leadframe including a base section and a pair of transverse sections extending transversely to the base section. A first die and a second die have a first contact region at a first main surface and a second contact region at the second main surface; the first main surfaces of the first and the second dice are attached to a first face of the base section of the leadframe. A first lead is coupled to the second contact region of the first die and has a first external contact portion. A second lead is coupled to the second contact region of the second die and has a second external contact portion. A packaging mass surrounds the leadframe, the first lead and the second lead, embeds the first and the second dice and extends level with the base section and with the transverse sections of the leadframe as well as with the external contact portions of the leads.Type: ApplicationFiled: October 16, 2024Publication date: May 22, 2025Applicant: STMicroelectronics International N.V.Inventor: Cristiano Gianluca STELLA
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Publication number: 20250165158Abstract: The present description concerns a method of configuration of a phase-change non-volatile memory, comprising the partitioning of said memory into a first set of one or a plurality of regions having a first maximum number of write cycles and a second set of one or a plurality of other regions having a second maximum number of write cycles greater than the first maximum number of write cycles, the first and second maximum number of write cycles being linked to different physical write parameters.Type: ApplicationFiled: November 7, 2024Publication date: May 22, 2025Applicant: STMicroelectronics International N.V.Inventor: Jawad BENHAMMADI
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Publication number: 20250167682Abstract: A DC-DC switching converter includes an electrical network with an inductor, switches and first and second capacitors subject to first and second voltages. A control module generates first and second control signals to control the switches with a sequence of switching periods implementing, for each switching period, a phase succession including: an inductor charge phase having a first duration as a function of the first control signal; a first inductor discharge phase towards the first capacitor having a second duration as a function of the second control signal; and a second inductor discharge phase towards the second capacitor. The control module couples to the electrical network to form a signal vector including signals indicative of the first and second voltages and the current. A gain stage generates the first and second control signals by multiplying the signal vector by a gain matrix for the control module forming a linear-quadratic regulator.Type: ApplicationFiled: November 12, 2024Publication date: May 22, 2025Applicant: STMicroelectronics International N.V.Inventors: Andrea BARBIERI, Raffaele Enrico FURCERI, Aldo VIDONI, Mattia BONINI
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Publication number: 20250158609Abstract: First digital-components are clocked by a system-clock, and second digital-components are clocked by a gated system-clock. A detection-module identifies detection-events and generates an event-flag in response. A digital-comparator generates a comparator-output based upon comparison of a count-value with a threshold, the comparator-output asserted when the count-value is less than the threshold and is deasserted when the count-value is equal-to or greater-than the threshold. A counter sets the count-value to a predetermined-value upon receipt of the event-flag, and, in response to assertion of the comparator-output, increments the count-value upon each successive rising-edge of the system-clock, but ceases when the comparator-output is deasserted.Type: ApplicationFiled: December 15, 2023Publication date: May 15, 2025Applicant: STMicroelectronics International N.V.Inventors: John Kevin MOORE, Kenneth DARGAN, Angeliki DELAKOURA
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Publication number: 20250160214Abstract: A thermoelectric unit includes a thermoelectric membrane having a first surface at a cavity in a layer of first thermally conductive material. The thermoelectric membrane has a second surface opposite to the first surface with second thermally conductive material arranged in contact with the second surface of the thermoelectric membrane. The thermoelectric membrane includes thermally sensitive material configured to generate via the Seebeck effect a thermoelectric signal indicative of the temperature difference between the second thermally conductive material and the first thermally conductive material. An insulating molding compound is molded onto the second thermally conductive material arranged in contact with the second surface of the thermoelectric membrane wherein mechanical stress develops in the thermoelectric membrane in response to molding. An encapsulation is provided at the second surface of the thermoelectric membrane.Type: ApplicationFiled: November 11, 2024Publication date: May 15, 2025Applicant: STMicroelectronics International N.V.Inventors: Antonio BELLIZZI, Fabrizio CREVENNA
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Publication number: 20250158521Abstract: An integrated circuit chip includes a first pad coupled to an external power supply voltage by a conductive wire; a PMOS transistor coupling the first pad to an internal node; a second pad coupled to an external reference voltage by another conductive wire; and a capacitor coupling said first and second pads. A sensing circuit detects an increase in a drain-source resistance of the transistor. A control circuit supplies, during each switching of the transistor to the off state, a first current to the gate of the transistor until the sensing circuit detects the increase in the drain-source resistance, then supplies a second current lower than the first current.Type: ApplicationFiled: November 8, 2024Publication date: May 15, 2025Applicant: STMicroelectronics International N.V.Inventor: Lionel CIMAZ
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Publication number: 20250157860Abstract: Wafer level testing is performed on a wafer including integrated circuit dies, each integrated circuit die including a die pads, with each die pad covered by a protection layer. The wafer level testing includes, at a given die pad: puncturing through the protection layer with a distal end of a probe to make physical and electrical contact with the given die pad at a first location at the given die pad; performing a first electrical test of the integrated circuit die through the probe; horizontally translating after completion of the first electrical test; puncturing through the protection layer with the distal end of the probe to make physical and electrical contact with the given die pad at a second location, different from the first location, at the given die pad; and performing a second first electrical test of the integrated circuit die through the probe.Type: ApplicationFiled: November 10, 2023Publication date: May 15, 2025Applicant: STMicroelectronics International N.V.Inventors: Alberto PAGANI, Mattia DE NICOLA
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Publication number: 20250155913Abstract: A bandgap circuit includes: a first resistor receiving a voltage proportional to the temperature; a second resistor receiving a voltage complementary to absolute temperature; and a third resistor where the sum of the currents in the first and second resistors flows. Each of the second and third resistors comprises a fixed resistance part and N controllable resistance parts, with N greater than or equal to 2. Each controllable resistance part of the second resistor is associated with a corresponding controllable resistance part of the third resistor. A control circuit supplies, for each controllable resistance part, the same control signal to this controllable resistance part and its associated controllable resistance part.Type: ApplicationFiled: November 11, 2024Publication date: May 15, 2025Applicant: STMicroelectronics International N.V.Inventors: Thierry MASSON, Anthony QUELEN
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Publication number: 20250157898Abstract: A leadframe includes first leads and second leads, wherein each lead of the first and second leads has an upper surface. First and second silver spots are provided on the upper surface of each lead of the first and second leads. An integrated circuit die has a front surface including first and second interconnection pads. A first pillar is mounted to each first interconnection pad, and second pillar is mounted to each second interconnection pad. The integrated circuit die is mounted in flip chip orientation to the leadframe with the first pillars soldered to the first silver spots and the second pillars soldered to the second silver spots. A resin body encapsulates the integrated circuit die mounted to the leadframe.Type: ApplicationFiled: November 14, 2023Publication date: May 15, 2025Applicant: STMicroelectronics International N.V.Inventor: Venero SANTAMARIA
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Publication number: 20250158617Abstract: A clock signal detection circuit includes a first input that receives an always-on clock signal, and a second input that receives an activatable clock signal. A detection flip-flop circuit has a data input terminal that receives an always-high logic signal, a clock terminal that receives the always-on clock signal, a reset terminal that receives a reset signal, and a data output terminal that produces an asynchronous clock detection signal. The reset signal is asserted to reset the detection flip-flop circuit in response to the activatable clock signal being asserted, and the reset signal is de-asserted to prevent reset of the detection flip-flop circuit in response to the activatable clock signal being de-asserted. The asynchronous clock detection signal is passed to an output to provide a clock detection signal that is asserted to indicate that the activatable clock signal is absent.Type: ApplicationFiled: November 6, 2024Publication date: May 15, 2025Applicant: STMicroelectronics International N.V.Inventor: Dorde CVEJANOVIC
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Publication number: 20250159906Abstract: A method manufactures a memory including at least one first phase-change memory cell, each first cell including a resistive element, a first metal layer, and a second layer made of a phase-change material, the first layer being located between the resistive element and the second layer. The method includes the forming of a level including the resistive element, the forming of a third metal layer on the level, the etching of the third layer, and then the forming of the second layer.Type: ApplicationFiled: November 1, 2024Publication date: May 15, 2025Applicant: STMicroelectronics International N.V.Inventors: Alain OSTROVSKY, Jerome DUBOIS, Latifa DESVOIVRES, Simon JEANNOT, Christian BOCCACCIO
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Patent number: 12299444Abstract: A system includes a memory and a processor coupled to the memory. The processor executes an instruction set having a word size. The processor includes arithmetic processing circuitry, which, in operation, executes arithmetic operations on operands having the word size. The arithmetic processing circuitry includes an arithmetic logic circuit (ALU) having an operand size smaller than the word size of the instruction set. The ALU, in operation, generates partial results of the arithmetic operations. A multiplexing network coupled to inputs of the ALU provides portions of the operands to the ALU. A shift register having the word size of the instruction set accumulates partial results generated by the ALU over a plurality of clock cycles and outputs results of the arithmetic operations based on the accumulated partial results.Type: GrantFiled: May 24, 2023Date of Patent: May 13, 2025Assignee: STMicroelectronics International N.V.Inventor: Sofiane Landi
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Patent number: 12302625Abstract: The disclosure concerns an electronic device provided with two high electron mobility transistors stacked on each other and having in common their source, drain, and gate electrodes. For example, each of these electrodes extends perpendicularly to the two transistors. For example, the source and drain electrodes electrically contact the conduction channels of each of the transistors so that said channels are electrically connected in parallel.Type: GrantFiled: March 30, 2022Date of Patent: May 13, 2025Assignees: STMicroelectronics France, STMicroelectronics International N.V.Inventors: Matthieu Nongaillard, Thomas Oheix
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Patent number: 12299214Abstract: The present disclosure is directed to lift-up gesture detection for electronic devices. An initial lift-up gesture is detected in response to an orientation change and a lift-up motion of the device being detected. The initial lift-up gesture is validated as a true lift-up gesture in a case where a shaking motion of the device is not being detected when the initial lift-up gesture is detected. If a shaking motion of the device is detected when the initial lift-up gesture is detected, the initial lift-up gesture is rejected.Type: GrantFiled: August 9, 2023Date of Patent: May 13, 2025Assignee: STMicroelectronics International N.V.Inventors: Stefano Paolo Rivolta, Federico Rizzardini, Lorenzo Bracco
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Publication number: 20250149983Abstract: A half-bridge driver circuit periodically repeats switching cycles by closing a first FET via a first drive signal, detecting an instant when a current flowing through the first FET reaches a threshold and then opening the first FET and closing a second FET via a second drive signal. An error amplifier generates a control voltage by comparing a feedback signal with a reference signal, and a variable current generator generates a first current as a function of the control voltage. The error amplifier includes a proportional-integral controller, and a slope compensation circuit that generates a second current as a ramp signal. The threshold is generated by subtracting the second current from the first current. In response to detecting the instant, the second current is sampled and a signal indicative of the threshold is generated by subtracting the sampled second current from the first current.Type: ApplicationFiled: November 1, 2024Publication date: May 8, 2025Applicant: STMicroelectronics International N.V.Inventors: Simone SCADUTO, Simone MANELLO, Carmelo Alberto SANTAGATI, Stefano SAGGINI
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Publication number: 20250151269Abstract: An integrated circuit includes a semiconductor substrate and at least one memory cell provided with a vertical gate selection transistor buried in the substrate and a floating gate state transistor. The floating gate state transistor covers a first active region and a second active region of the substrate delimited by lateral isolation regions. The memory cell includes a lateral isolation region thickness (in breadth) dimension between a sidewall of the vertical gate of the buried transistor and the second active region.Type: ApplicationFiled: October 31, 2024Publication date: May 8, 2025Applicant: STMicroelectronics International N.V.Inventors: Madjid AKBAL, Franck MELUL, Arnaud REGNIER, Francesco LA ROSA