Patents Assigned to STMicroelectronics
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Patent number: 12146894Abstract: The present disclosure is directed to a device and method for lid angle detection that is accurate even if the device is activated in an upright position. While the device is in a sleep state, first and second sensor units measure acceleration and angular velocity, and calculate orientations of respective lid components based on the acceleration and angular velocity measurements. Upon the device exiting the sleep state, a processor estimates the lid angle using the calculated orientations, sets the estimated lid angle as an initial lid angle, and updates the initial lid angle using, for example, two accelerometers; two accelerometers and two gyroscopes; two accelerometers and two magnetometers; or two accelerometers, two gyroscopes, and two magnetometers.Type: GrantFiled: May 27, 2022Date of Patent: November 19, 2024Assignee: STMICROELECTRONICS S.r.l.Inventors: Federico Rizzardini, Lorenzo Bracco
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Patent number: 12148824Abstract: 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: GrantFiled: February 4, 2022Date of Patent: November 19, 2024Assignee: STMicroelectronics S.r.l.Inventors: Mario Giuseppe Saggio, Edoardo Zanetti
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Patent number: 12148628Abstract: A leadframe includes a die pad and a set of electrically conductive leads. A semiconductor die, having a front surface and a back surface opposed to the front surface, is arranged on the die pad with the front surface facing away from the die pad. The semiconductor die is electrically coupled to the electrically conductive leads. A package molding material is molded over the semiconductor die arranged on the die pad. A stress absorbing material contained within a cavity delimited by a peripheral wall on the front surface of the semiconductor die is positioned intermediate at least one selected portion of the front surface of the semiconductor die and the package molding material.Type: GrantFiled: September 12, 2022Date of Patent: November 19, 2024Assignees: STMicroelectronics S.r.l., STMicroelectronics (MALTA) LtdInventors: Roseanne Duca, Dario Paci, Pierpaolo Recanatini
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Patent number: 12148470Abstract: In an embodiment a circuit includes a plurality of memory cells, wherein each memory cell includes a phase-change memory storage element coupled in series with a respective current-modulating transistor between a supply voltage node and a reference voltage node, the current-modulating transistors being configured to receive a drive signal at a control terminal and to inject respective programming currents into the respective phase-change memory storage element as a function of the drive signal, a driver circuit configured to produce the drive signal at a common control node, wherein the common control node is coupled to the control terminals of the current-modulating transistors, the drive signal modulating the programming currents to produce SET programming current pulses and RESET programming current pulses and at least one current generator circuit configured to inject a compensation current for the programming currents into the common control node.Type: GrantFiled: July 22, 2022Date of Patent: November 19, 2024Assignee: STMicroelectronics S.r.l.Inventors: Agatino Massimo Maccarrone, Antonino Conte, Francesco Tomaiuolo, Michelangelo Pisasale, Marco Ruta
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Patent number: 12147105Abstract: A method includes forming a layer made of a first insulating material on a first layer made of a second insulating material that covers a support, defining a waveguide made of the first material in the layer of the first material, covering the waveguide made of the first material with a second layer of the second material, planarizing an upper surface of the second layer of the second material, and forming a single-crystal silicon layer over the second layer.Type: GrantFiled: November 16, 2022Date of Patent: November 19, 2024Assignee: STMicroelectronics (Crolles 2) SASInventor: Sebastien Cremer
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Patent number: 12149250Abstract: An output potential level among two first levels is delivered according to an input level among two second levels. The output potential level is delivered at a first node connecting together first and second transistors electrically in series between two second nodes of application of the first levels. A first DC voltage defining a high limit for the control voltage of the first transistor is delivered by a first voltage generator powered by one of the second nodes. A second DC voltage defining a high limit for the control voltage of the second transistor is delivered by a second voltage generator controlled by a value representative of the first voltage and powered between the second nodes.Type: GrantFiled: August 26, 2021Date of Patent: November 19, 2024Assignee: STMicroelectronics (Grenoble 2) SASInventors: Denis Cottin, Fabrice Romain
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Patent number: 12149047Abstract: A pulsed signal generator generates a pulsed signal having a pulse width configured to be equal to a given fraction of a pulse width of a reference clock. A reference current source outputs current having a reference magnitude, and a comparison current source outputs current having a magnitude that is a function of the reference magnitude and the given fraction. A comparison circuit compares a total current output by one of the reference current source and the comparison current source during pulses of the reference clock to a total current output by the other of the reference current source and the comparison current source during pulses of the pulsed signal equal in number to the pulses of the reference clock in order to determine whether the pulse width of the pulse signal is less than or equal to the given fraction of the pulse width of the reference clock.Type: GrantFiled: June 6, 2022Date of Patent: November 19, 2024Assignee: STMicroelectronics S.r.l.Inventors: Marco Zamprogno, Alireza Tajfar
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Patent number: 12149241Abstract: A multiplexer includes an input, an output, and a main switch configured to pass a signal from the input to the output. The multiplexer includes two bootstrap circuits that collectively maintain a constant voltage between terminals of the main switch during alternating phases.Type: GrantFiled: June 14, 2023Date of Patent: November 19, 2024Assignee: STMicroelectronics International N.V.Inventors: Vaibhav Garg, Abhishek Jain, Anand Kumar
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Patent number: 12148503Abstract: In an embodiment an integrated circuit includes a non-volatile memory having a plurality of memory cells, wherein each memory cell is configured to store information, and wherein each memory cell is configured to provide a reading current having an intensity dependent on a value stored in the memory cell when the memory cell is selected for reading; and a sense amplifier including a first amplifier configured to amplify the reading current of each memory cell selected for reading, an oscillation generator configured to generate on basis of the amplified signal a signal having oscillations according to a frequency dependent on the intensity of the current of the amplified signal, a counter configured to count the oscillations of the signal generated by the oscillation generator over at least one given period of time and a digital processing circuit configured to determine a value represented by the amplified signal on basis of the value counted during the at least one given period of time using a lookup tableType: GrantFiled: September 16, 2022Date of Patent: November 19, 2024Assignee: STMICROELECTRONICS (GRAND OUEST) SASInventor: Xavier Lecoq
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Patent number: 12148778Abstract: A method of forming a device, the method including: depositing a first photoresist layer over a substrate, forming an array of seed lenses by patterning and reflowing the first photoresist layer, a dimension of the array of seed lenses varying across the substrate, forming a second photoresist layer over the array of seed lenses, and forming a microlens array by patterning and reflowing the second photoresist layer.Type: GrantFiled: April 28, 2021Date of Patent: November 19, 2024Assignee: STMICROELECTRONICS LTD.Inventor: Yu-Tsung Lin
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Publication number: 20240379891Abstract: A single photon avalanche diode (SPAD) pixel circuit includes a SPAD, a clamping transistor coupled to the anode of the SPAD, and readout circuitry. The clamping transistor limits the anode voltage to a threshold below the readout circuitry's maximum operating voltage. In one embodiment, quenching and enabling transistors are implemented using single-layer gate oxide technology, while the clamping transistor uses extended drain technology. A regulation circuit generates a voltage clamp control signal for an array of pixels. Another embodiment utilizes a stacked chip design with the SPAD and a cathode-side quenching element on one chip, and the clamping transistor and readout circuitry on another. This incorporates a parasitic capacitance from deep trench isolation. Additional biasing transistors may be used for fine-tuning the clamped anode voltage.Type: ApplicationFiled: July 23, 2024Publication date: November 14, 2024Applicant: STMicroelectronics (Research & Development) LimitedInventors: Mohammed AL-RAWHANI, Neale DUTTON, John Kevin MOORE, Bruce RAE, Elsa LACOMBE
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Publication number: 20240379742Abstract: A semiconductor MOS device having an epitaxial layer with a first conductivity type formed by a drain region and by a drift region. The drift region accommodates a plurality of first columns with a second conductivity type and a plurality of second columns with the first conductivity type, the first and second columns alternating with each other and extending on the drain region. Insulated gate regions are each arranged on top of a respective second column; body regions having the second conductivity type extend above and at a distance from a respective first column, thus improving the output capacitance Cds of the device, for use in high efficiency RF applications.Type: ApplicationFiled: July 25, 2024Publication date: November 14, 2024Applicant: STMicroelectronics S.r.l.Inventors: Antonino SCHILLACI, Paola Maria PONZIO, Roberto CAMMARATA
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Publication number: 20240379741Abstract: An integrated circuit includes a polysilicon region that is doped with a dopant. A portion of the polysilicon region is converted to a polyoxide region which includes un-oxidized dopant ions. A stack of layers overlies over the polyoxide region. The stack of layers includes: a first ozone-assisted sub-atmospheric pressure thermal chemical vapor deposition (O3 SACVD) TEOS layer; and a second O3 SACVD TEOS layer; wherein the first and second O3 SACVD TEOS layers are separated from each other by a dielectric region. A thermally annealing is performed at a temperature which induces outgassing of passivation atoms from the first and second O3 SACVD TEOS layers to migrate to passivate interface charges due to the presence of un-oxidized dopant ions in the polyoxide region.Type: ApplicationFiled: July 22, 2024Publication date: November 14, 2024Applicant: STMicroelectronics PTE LTDInventor: Yean Ching YONG
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Publication number: 20240380999Abstract: An image sensor includes a pixel array where each pixel is formed in a portion of a substrate electrically insulated from other portions of the substrate. Each pixel includes a photodetector; a transfer transistor; and a readout circuit comprising one or a plurality of transistors. The transistors of the readout circuit are formed inside and on top of at least one well of the portion. The reading from the photodetector of a pixel of a current row uses at least one transistor of the readout circuit of a pixel of at least one previous row, the well of the pixel of the previous row being biased with a first voltage greater than a second bias voltage of the well of the pixel of the current row.Type: ApplicationFiled: July 23, 2024Publication date: November 14, 2024Applicant: STMicroelectronics (Crolles 2) SASInventors: Francois ROY, Thomas DALLEAU
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Publication number: 20240377198Abstract: Test method of a vibrational MEMS structure wherein, a direct, variable modification voltage is applied to a resonance modification test structure having non-rectilinear electrodes, modifying the resonance frequency of the movable mass and the driving frequency. During the test, the movable mass is verified about stability and, if not stable, the vibrational MEMS structure is rejected.Type: ApplicationFiled: May 3, 2024Publication date: November 14, 2024Applicant: STMicroelectronics International N.V.Inventors: Gabriele GATTERE, Luca GUERINONI
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Patent number: 12143108Abstract: In an embodiment an integrated device includes a first physical unclonable function module configured to generate an initial data group and management module configured to generate an output data group from at least the initial data group, authorize only D successive deliveries of the output data group on a first output interface of the device, D being a non-zero positive integer, and prevent any new generation of the output data group.Type: GrantFiled: July 12, 2022Date of Patent: November 12, 2024Assignees: STMicroelectronics (Rousset) SAS, STMicroelectronics International N.V.Inventors: Francesco La Rosa, Marco Bildgen
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Patent number: 12143015Abstract: In an embodiment a switching power supply includes a voltage ramp generator comprising at least one output capacitor, wherein the generator is configured such that the output capacitor has a first value during a first operating cycle of a first operating mode and a second value during subsequent operating cycles of the first operating mode.Type: GrantFiled: April 27, 2022Date of Patent: November 12, 2024Assignee: STMICROELECTRONICS (ROUSSET) SASInventor: Sebastien Ortet
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Patent number: 12139396Abstract: A microelectromechanical sensor device has a detection structure including: a substrate having a first surface; a mobile structure having an inertial mass suspended above the substrate at a first area of the first surface so as to perform at least one inertial movement with respect to the substrate; and a fixed structure having fixed electrodes suspended above the substrate at the first area and defining with the mobile structure a capacitive coupling to form at least one sensing capacitor. The device further includes a single monolithic mechanical-anchorage structure positioned at a second area of the first surface separate from the first area and coupled to the mobile structure, the fixed structure, and the substrate and connection elements that couple the mobile structure and the fixed structure mechanically to the single mechanical-anchorage structure.Type: GrantFiled: July 23, 2021Date of Patent: November 12, 2024Assignee: STMICROELECTRONICS S.r.l.Inventors: Francesco Rizzini, Carlo Valzasina, Gabriele Gattere
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Patent number: 12141590Abstract: System, method, and circuitry for generating content for a programmable computing device based on user-selected configuration information. A settings registry is generated based on the user's selections. The settings registry and the user selected configuration information is utilized to generate the content, such as code, data, parameters, settings, etc. When the content is provided to the programmable computing device, the content initializes, configures, or controls one or more software and hardware aspects of the programmable computing device, such as boot sequence configurations, internal peripheral configurations, states of the programmable computing device, transitions between states of the programmable computing device, etc., and various combinations thereof.Type: GrantFiled: August 29, 2022Date of Patent: November 12, 2024Assignees: STMicroelectronics (Grand Ouest) SAS, STMicroelectronics FranceInventors: Frederic Ruelle, Emmanuel Grandin, Bechir Jabri
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Patent number: 12140714Abstract: A waveform generator includes a system control unit and signal channels controlled by the system control unit and configured to supply driving signals for driving a respective transducer of an array of transducers. Each signal channel includes a sequential access memory having rows, where each row contains an instruction word configured to generate a respective step of a waveform to be generated. A memory output of the sequential access memory is defined by an output row at a fixed location. The waveform to be generated is defined by a block of instruction words. Each signal channel also includes an internal control unit that is configured to sequentially move the content of the sequential access memory, based on the instruction word currently at the memory output, so that sequences of instruction words are provided at the output row.Type: GrantFiled: February 16, 2021Date of Patent: November 12, 2024Assignee: STMicroelectronics S.r.l.Inventors: Stefano Passi, Roberto Giorgio Bardelli, Anna Moroni