Patents Assigned to STMicroelectronics
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Publication number: 20250149928Abstract: A wireless charging transmitter device is includes a square wave signal generation circuit. The square wave signal generation circuit is formed by a first PMOS transistor switching circuit having a group of PMOS performance transistors and at least one PMOS functionality transistor, and a second NMOS transistor switching circuit having a group of NMOS performance transistors and at least one NMOS functionality transistor.Type: ApplicationFiled: November 5, 2024Publication date: May 8, 2025Applicant: STMicroelectronics International N.V.Inventors: Bruno LEDUC, Gregoire MONTJAUX, Christophe GRUNDRICH, Hubert DEGOIRAT
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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: 20250151322Abstract: A MOSFET device comprising: a structural region, made of a semiconductor material having a first type of conductivity, which extends between a first side and a second side opposite to the first side along an axis; a body region, having a second type of conductivity opposite to the first type, which extends in the structural region starting from the first side; a source region, having the first type of conductivity, which extends in the body region starting from the first side; a gate region, which extends in the structural region starting from the first side, traversing entirely the body region; and a shielding region, having the second type of conductivity, which extends in the structural region between the gate region and the second side. The shielding region is an implanted region self-aligned, in top view, to the gate region.Type: ApplicationFiled: October 15, 2024Publication date: May 8, 2025Applicant: STMicroelectronics S.r.l.Inventors: Mario Giuseppe SAGGIO, Edoardo ZANETTI
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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
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Publication number: 20250145451Abstract: A microelectromechanical device includes: a supporting body, containing semiconductor material; a movable mass, constrained to the supporting body with a relative degree of freedom with respect to a first motion direction perpendicular to the supporting body; and at least one stopping structure, configured to limit out-of-plane movements of the movable mass along the first motion direction. The stopping structure includes: first elements, extending parallel to the first motion direction and anchoring the stopping structure to the supporting body; and a second element, extending transversally to the first elements, surmounting and connecting the first elements.Type: ApplicationFiled: October 28, 2024Publication date: May 8, 2025Applicant: STMicroelectronics International N.V.Inventors: Gabriele GATTERE, Manuel RIANI
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Publication number: 20250146159Abstract: Articles carried by a carrier are processed in a sequence of processing steps that includes a plating step where a base layer of plating material is plated on a surface of the carrier. The plating material plated on the surface of the carrier is selectively stripped to partially remove the plating material to reduce e thickness of the base layer of plating material plated present on the surface of the carrier. A residual protective layer of plating material having the reduced thickness is left on the surface of the carrier.Type: ApplicationFiled: October 31, 2024Publication date: May 8, 2025Applicant: STMicroelectronics International N.V.Inventor: Paolo CREMA
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Publication number: 20250150811Abstract: At least one transmission of scrambled data with a pseudo-random sequence generated by a scrambling polynomial and an initialization value is performed between a transmitter and a receiver. Prior to the transmission, transmitter and the receiver engage in a secret negotiation phase to specifically determine the scrambling polynomial and the initialization value for the at least one transmission.Type: ApplicationFiled: November 1, 2024Publication date: May 8, 2025Applicant: STMicroelectronics International N.V.Inventor: Julien SAADE
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Publication number: 20250151395Abstract: Single gate and dual gate FinFET devices suitable for use in an SRAM memory array have respective fins, source regions, and drain regions that are formed from portions of a single, contiguous layer on the semiconductor substrate, so that STI is unnecessary. Pairs of FinFETs can be configured as dependent-gate devices wherein adjacent channels are controlled by a common gate, or as independent-gate devices wherein one channel is controlled by two gates. Metal interconnects coupling a plurality of the FinFET devices are made of a same material as the gate electrodes. Such structural and material commonalities help to reduce costs of manufacturing high-density memory arrays.Type: ApplicationFiled: December 16, 2024Publication date: May 8, 2025Applicant: STMicroelectronics, Inc.Inventor: John H. ZHANG
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Publication number: 20250145453Abstract: MEMS device having a substrate of semiconductor material; a first structural layer of semiconductor material, on the substrate; a second structural layer of semiconductor material, on the first structural layer; an active portion, accommodating active structures formed in the first structural layer and/or in the second structural layer; a connection portion, accommodating a plurality of connection structures and arranged laterally to the active portion; and a plurality of conductive regions, arranged on the substrate and extending between the active portion and the connection portion. Each connection structure is formed by a first connection portion, in electrical contact with a respective conductive region and formed in the first structural layer, and by a second connection portion, on the first connection portion and in electrical continuity therewith, the second connection portion formed in the second structural layer. The first connection portion has a greater thickness than the second connection portion.Type: ApplicationFiled: October 24, 2024Publication date: May 8, 2025Applicant: STMicroelectronics International N.V.Inventors: Lorenzo CORSO, Federico VERCESI, Gabriele GATTERE, Anna GUERRA, Carlo VALZASINA, Giorgio ALLEGATO
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Patent number: 12295272Abstract: A method for making a phase change memory includes a step of forming an array of phase change memory cells, with each cell being separated from neighboring cells in the same line of the array and from neighboring cells in the same column of the array, by the same first distance. The method further includes a step of etching one memory cell out of N, with N being at least equal to 2, in each line or each column.Type: GrantFiled: June 22, 2022Date of Patent: May 6, 2025Assignee: STMicroelectronics (Crolles 2) SASInventors: Laurent Favennec, Fausto Piazza
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Patent number: 12294375Abstract: A circuit detects zero crosses in an input-signal and includes a low-pass-filter (LPF) receiving the input-signal and introducing a phase-shift dependent on the frequency thereof. Filter circuitry receives the output of the LPF, applies a fixed phase-shift thereto, and adjusts phase and DC-offset thereof based on control signals to produce a filtered output-signal. Control circuitry has a zero-crossing detector receiving the input-signal and the filtered output-signal, detecting zero-crossings of the input-signal and the filtered output-signal, asserting a digital zero cross signal at each zero crossing, and determining a phase-shift and DC-offset between the input-signal and filtered output-signal.Type: GrantFiled: September 21, 2023Date of Patent: May 6, 2025Assignee: STMicroelectronics International N.V.Inventor: Guido Dossi
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Patent number: 12292567Abstract: A microelectromechanical mirror device includes a supporting frame of semiconductor material and a plate of semiconductor material. The plate is connected to the supporting frame so as to be orientable around at least one rotation axis. A reflective layer is arranged on a first region of the plate. A piezoelectric actuation structure extends on a second region of the plate adjacent to the reflective layer. The piezoelectric actuation structure is configured to apply forces such as to modify a curvature of the plate.Type: GrantFiled: September 2, 2021Date of Patent: May 6, 2025Assignee: STMicroelectronics S.r.l.Inventors: Nicolo′ Boni, Roberto Carminati, Massimiliano Merli
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Patent number: 12294302Abstract: A circuit includes an electronic switch configured to be coupled intermediate a high-voltage node and low-voltage circuitry and configured to couple the low-voltage circuitry to the high-voltage node. A voltage-sensing node is configured to be coupled to the high-voltage node via a pull-up resistor. A further electronic switch can be switched to a conductive state to couple the voltage-sensing node and the control node of the electronic switch. A comparator compares a threshold with a voltage at the voltage-sensing node and causes the further electronic switch to switch on in response to the voltage at said voltage-sensing node reaching said threshold. A charge pump coupled to the current flow-path of the electronic switch is activated to the conductive state to pump electric charge from the current flow-path of the electronic switch to the control node of the electronic switch via the further electronic switch switched to the conductive state.Type: GrantFiled: August 30, 2023Date of Patent: May 6, 2025Assignee: STMICROELECTRONICS S.r.l.Inventors: Salvatore Tumminaro, Alfio Pasqua, Marco Sammartano
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Patent number: 12294358Abstract: A resettable digital stage operates when a supply voltage is higher than a threshold. A non-volatile memory stores a digital code read by a reading stage. A main power-on reset circuit generates a main reset signal controlling reset of the reading stage. A resettable volatile memory coupled to the reading stage stores a default value when reset. An auxiliary power-on reset circuit generates an auxiliary reset signal controlling reset of the volatile memory. Upon deactivation of the reset, the reading stage loads the digital code into the volatile memory. The main power-on reset circuit functions in a non-trimmed configuration response to the stored default value and in a trimmed configuration responsive to the stored digital code. The main power-on reset circuit has first and second operative thresholds which respectively fall within a first and second non-trimmed voltage range or within a first and second trimmed voltage range.Type: GrantFiled: January 10, 2024Date of Patent: May 6, 2025Assignee: STMicroelectronics International N.V.Inventors: Riccardo Condorelli, Antonino Mondello, Michele Alessandro Carrano, Daniele Mangano, Fabien Laplace, Luc Garcia, Michel Cuenca
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Patent number: 12293729Abstract: An optoelectronic device includes a backlight panel illuminating a display panel. The backlight panel includes an array of light emitting pixels, each light emitting pixel having at least one subpixel with one or more light emitting diodes positioned on a substrate. The pixel further includes at least one photodetector positioned on the substrate and arranged to detect an amount of reflected light emitted by said subpixel and reflected by the display panel.Type: GrantFiled: December 4, 2023Date of Patent: May 6, 2025Assignees: STMicroelectronics (Grenoble 2) SAS, STMicroelectronics S.r.l.Inventors: Jonathan Steckel, Giovanni Conti, Gaetano L'Episcopo, Mario Antonio Aleo, Carmelo Occhipinti
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Patent number: 12295128Abstract: The device has a first support element forming a first thermal dissipation surface and carrying a first power component; a second support element forming a second thermal dissipation surface and carrying a second power component, a first contacting element superimposed to the first power component; a second contacting element superimposed to the second power component; a plurality of leads electrically coupled with the power components through the first and/or the second support elements; and a thermally conductive body arranged between the first and the second contacting elements. The first and the second support elements and the first and the second contacting elements are formed by electrically insulating and thermally conductive multilayers.Type: GrantFiled: December 22, 2023Date of Patent: May 6, 2025Assignee: STMICROELECTRONICS S.r.l.Inventors: Cristiano Gianluca Stella, Francesco Salamone
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Patent number: 12292777Abstract: In an embodiment a method for managing a low-power mode of an electronic device includes at a first request for transitioning an electronic device to a low-power mode, storing values of a first counter and a second counter of the electronic device on a first edge of a first clock and at a second request for transitioning the electronic device out of the low-power mode calculating a number of periods of a second clock between a second edge of the first clock and the first edge, the second edge being later than the first edge and updating the value of the second counter with a calculated value, wherein the first clock drives the first counter and the second clock drives the second counter, the second clock being faster than the first clock.Type: GrantFiled: November 2, 2021Date of Patent: May 6, 2025Assignee: STMicroelectronics (Grand Ouest) SASInventors: Gerald Baeza, Pascal Paillet, Loic Pallardy
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Patent number: 12292780Abstract: Systems and devices are provided to enable granular control over a retention or active state of each of a plurality of memory circuits, such as a plurality of memory cell arrays, within a memory. Each respective memory array of the plurality of memory arrays is coupled to a respective ballast driver and a respective active memory signal switch for the respective memory array. One or more voltage regulators are coupled to a ballast driver gate node and to a bias node of at least one of the respective memory arrays. In operation, the respective active memory signal switch for a respective memory array causes the respective memory array to transition between an active state for the respective memory array and a retention state for the respective memory array.Type: GrantFiled: June 21, 2023Date of Patent: May 6, 2025Assignees: STMICROELECTRONICS S.r.l., STMicroelectronics International N.V.Inventors: Nitin Chawla, Anuj Grover, Giuseppe Desoli, Kedar Janardan Dhori, Thomas Boesch, Promod Kumar
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Patent number: 12294035Abstract: An optoelectronic device with a semiconductor body that includes: a bottom cathode structure, formed by a bottom semiconductor material, and having a first type of conductivity; and a buffer region, arranged on the bottom cathode structure and formed by a buffer semiconductor material different from the bottom semiconductor material. The optoelectronic device further includes: a receiver comprising a receiver anode region, which is formed by the bottom semiconductor material, has a second type of conductivity, and extends in the bottom cathode structure; and an emitter, which is arranged on the buffer region and includes a semiconductor junction formed at least in part by a top semiconductor material, different from the bottom semiconductor material.Type: GrantFiled: June 24, 2021Date of Patent: May 6, 2025Assignee: STMicroelectronics S.r.l.Inventors: Massimo Cataldo Mazzillo, Valeria Cinnera Martino, Antonella Sciuto
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Patent number: 12294344Abstract: The integrated circuit includes a power amplifier, an antenna, and a matching and filtering network including a direct current power supply stage on an output node of the power amplifier, a first section, and a second section. The direct current power supply stage and the two sections include inductor-capacitor “LC” arrangements configured to have an impedance that is matched to the output of the power amplifier in the fundamental frequency band. The LC arrangements of the direct current power supply stage and of the first section are furthermore configured to have resonant frequencies that are respectively adapted to attenuate harmonic frequency bands of the fundamental frequency band.Type: GrantFiled: February 15, 2021Date of Patent: May 6, 2025Assignee: STMicroelectronics International N.V.Inventors: Guillaume Blamon, Emmanuel Picard, Christophe Boyavalle