Patents Assigned to STMicroelectronics S.r.l.
  • Patent number: 10666039
    Abstract: A power stage in an electronic fuse circuit is driven by controller. The controller includes a first comparator set for output voltage control and a second comparator set for output current control. Each comparator set includes at least one comparator having a reference input, a feedback input, and one or more outputs. A driver circuit includes output terminals for driving the power stage. The driver circuit includes a switch that is selectively activated in response to outputs from the first and second comparator sets to clamp the voltage across the output terminals of the driver circuit. The clamp operation is made in response to feedback input to either of the first and second comparator sets having exceeded a certain reference.
    Type: Grant
    Filed: March 8, 2017
    Date of Patent: May 26, 2020
    Assignee: STMicroelectronics S.r.l.
    Inventors: Manuela La Rosa, Giovanni Sicurella
  • Patent number: 10660540
    Abstract: A device for measuring an electrical impedance of biologic tissue may include electrodes configured to contact the biologic tissue and generate a differential voltage thereon. The device may include a first circuit coupled to the electrodes and configured to force an oscillating input signal therethrough, and a differential amplitude modulation (AM) demodulator coupled to the plurality of electrodes. The differential AM demodulator may be configured to demodulate the differential voltage, and generate a base-band signal representative of the demodulated differential voltage. The device may further include an output circuit downstream from the differential AM demodulator and may be configured to generate an output signal representative of the electrical impedance as a function of the base-band signal.
    Type: Grant
    Filed: August 1, 2017
    Date of Patent: May 26, 2020
    Assignee: STMICROELECTRONICS S.R.L.
    Inventors: Pasquale Biancolillo, Stefano Rossi, Angelo Recchia, Giuseppe Bruno
  • Publication number: 20200161980
    Abstract: A DC-DC converter includes a transformer having primary and secondary windings, a power oscillator applying an oscillating signal to the primary winding to transmit a power signal to the secondary winding, a rectifier obtaining an output DC voltage by rectifying the power signal at the secondary winding, and comparison circuitry generating an error signal representing a difference between the output DC voltage and a reference voltage value. A transmitter connected to the secondary winding performs an amplitude modulation of the power signal at the secondary winding to transmit an amplitude modulated power signal to the primary winding, the amplitude modulation based upon the error signal and modulating a stream of data to the primary winding. A receiver coupled to the primary winding demodulates the amplitude modulated power signal to recover the error signal and the stream of data. An amplitude of the oscillating signal is controlled by the error signal.
    Type: Application
    Filed: January 21, 2020
    Publication date: May 21, 2020
    Applicant: STMicroelectronics S.r.l.
    Inventors: Alessandro PARISI, Nunzio GRECO, Nunzio SPINA, Egidio RAGONESE, Giuseppe PALMISANO
  • Patent number: 10658918
    Abstract: A switching cell includes: a half-bridge circuit including a first electronic switch and a second electronic switch connected in series between a first input terminal and a second input terminal of an electronic converter, wherein a first capacitor is connected in parallel to the first electronic switch and a second capacitor is connected in parallel to the second electronic switch; a first inductor connected between a first output terminal of the electronic converter and an intermediate point between the first electronic switch and the second electronic switch; a second inductor and a first capacitor connected in series between a first terminal of the first inductor and the intermediate point; a switching circuit connected between the first terminal of the first inductor and a second output terminal of the electronic converter; and a third capacitance connected between the first terminal of the first inductor and the second input terminal.
    Type: Grant
    Filed: July 27, 2018
    Date of Patent: May 19, 2020
    Assignee: STMICROELECTRONICS S.R.L.
    Inventor: Osvaldo Enrico Zambetti
  • Patent number: 10658048
    Abstract: A sense structure includes: a sense amplifier core configured to compare a measurement current with a reference current; a cascode transistor coupled to the sense amplifier core and configured to be coupled to a load; a switch coupled between a bias voltage node and a control terminal of the cascode transistor; a local capacitor having a first terminal coupled to the control terminal of the cascode transistor; a first transistor coupled between a second terminal of the local capacitor and a reference terminal; and a control circuit coupled to a control terminal of the first transistor, the control circuit configured to disconnect the local capacitor from the reference terminal to produce a voltage overshoot in the control terminal of the cascode transistor, and after disconnecting the local capacitor from the reference terminal, limit or reduce the voltage overshoot by adjusting a voltage of the control terminal of the first transistor.
    Type: Grant
    Filed: August 16, 2018
    Date of Patent: May 19, 2020
    Assignee: STMICROELECTRONICS S.R.L.
    Inventors: Antonino Conte, Loredana Chiaramonte, Anna Rita Maria Lipani
  • Patent number: 10658364
    Abstract: According to principles as discussed herein, an EEPROM cell is provided and then, after testing the code, using the exact same architecture, transistors, memory cells, and layout, the EEPROM cell is converted to a read-only memory (“ROM”) cell. This conversion is done on the very same integrated circuit die using the same layout, design, and timing with only a single change in an upper level mask in the memory array. In one embodiment, the mask change is the via mask connecting metal 1 to poly. This allows the flexibility to store the programming code as non-volatile memory code, and then after it has been tested, at time selected by the customer, some or all of that code from a code that can be written to a read-only code that is stored in a ROM cell that is composed the same transistors and having the same layout.
    Type: Grant
    Filed: February 28, 2018
    Date of Patent: May 19, 2020
    Assignees: STMICROELECTRONICS S.R.L., STMICROELECTRONICS INTERNATIONAL N.V.
    Inventors: Fabio De Santis, Vikas Rana
  • Patent number: 10658032
    Abstract: A memory device includes an array of phase-change memory cells and a word line. The memory device includes a control circuit, a first pull-up MOSFET and a second pull-up MOSFET connected in series between a first power-supply node set at a first supply voltage and the word line, a first pull-down MOSFET and a second pull-down MOSFET connected in series between the word line and a second power-supply node set at a reference potential, and a biasing MOSFET connected between the word line and a third power-supply node set at a second supply voltage higher than the first supply voltage. The first and second pull-up MOSFETs and the first and second pull-down MOSFETs have breakdown voltages lower than the breakdown voltage of the biasing MOSFET.
    Type: Grant
    Filed: October 9, 2018
    Date of Patent: May 19, 2020
    Assignee: STMICROELECTRONICS S.R.L.
    Inventors: Cesare Torti, Fabio Enrico Carlo Disegni, Davide Manfré, Massimo Fidone
  • Patent number: 10658917
    Abstract: A sense terminal is configured to sense a drain-to-source voltage of a field effect transistor and a drive terminal is configured to drive the gate terminal of the field effect transistor to alternatively turn the field effect transistor on and off to provide a rectified current flow in the field effect transistor channel. A comparator is configured to perform a comparison of the drain-to-source voltage of the field effect transistor with a reference threshold and to detect alternate downward and upward crossings of the reference threshold and the drain-to-source voltage. A PWM signal generator is configured to drive the gate terminal of the field effect transistor to turn the field effect transistor on and off as a result of the alternate downward and upward crossings of the reference threshold by the drain-to-source voltage.
    Type: Grant
    Filed: April 1, 2019
    Date of Patent: May 19, 2020
    Assignee: STMicroelectronics S.R.L.
    Inventor: Ivan Clemente Massimiani
  • Patent number: 10651319
    Abstract: A switching device including: a body of semiconductor material, which has a first conductivity type and is delimited by a front surface; a contact layer of a first conductive material, which extends in contact with the front surface; and a plurality of buried regions, which have a second conductivity type and are arranged within the semiconductor body, at a distance from the contact layer.
    Type: Grant
    Filed: March 18, 2019
    Date of Patent: May 12, 2020
    Assignee: STMICROELECTRONICS S.R.L.
    Inventors: Mario Giuseppe Saggio, Simone Rascuna'
  • Patent number: 10646892
    Abstract: The present disclosure is directed to a microfluidic die that includes a plurality of heaters above a substrate, a plurality of chambers and nozzles above the heaters, a plurality of first contacts coupled to the heaters, and a plurality of second contacts coupled to the heaters. The plurality of second contacts are coupled to each other and coupled to ground. The die includes a plurality of contact pads, a first signal line coupled to the plurality of second contacts and to a first one of the plurality of contact pads, and a plurality of second signal lines, each second signal line being coupled to one of the plurality of first contacts, groups of the second signal lines being coupled together to drive a group of the plurality of heaters with a single signal, each group of the second signal lines being coupled to a remaining one of the plurality of contact pads.
    Type: Grant
    Filed: November 3, 2017
    Date of Patent: May 12, 2020
    Assignees: STMicroelectronics, Inc., STMICROELECTRONICS S.R.L., STMicroelectronics International N.V.
    Inventors: Simon Dodd, Joe Scheffelin, Dave Hunt, Matt Giere, Dana Gruenbacher, Faiz Sherman
  • Patent number: 10649202
    Abstract: A micro-electro-mechanical (MEMS) device is formed in a first wafer overlying and bonded to a second wafer. The first wafer includes a fixed part, a movable part, and elastic elements that elastically couple the movable part and the fixed part. The movable part further carries actuation elements configured to control a relative movement, such as a rotation, of the movable part with respect to the fixed part. The second wafer is bonded to the first wafer through projections extending from the first wafer. The projections may, for example, be formed by selectively removing part of a semiconductor layer. A composite wafer formed by the first and second wafers is cut to form many MEMS devices.
    Type: Grant
    Filed: December 19, 2018
    Date of Patent: May 12, 2020
    Assignee: STMicroelectronics S.r.l.
    Inventors: Sonia Costantini, Marta Carminati, Daniela Angela Luisa Gatti, Laura Maria Castoldi, Roberto Carminati
  • Patent number: 10651304
    Abstract: In an HEMT device, a gate region is formed in a wafer having a channel layer, a barrier layer, and a passivation layer, overlying each other. Drain and source electrodes are formed in the wafer, on different sides of the gate region. A dielectric layer is formed over the gate region and over the passivation layer. Selective portions of the dielectric layer are removed by a plurality of etches so as to form one or more cavities between the gate region and the drain electrode. The one or more cavities have a plurality of steps at an increasing distance from the wafer moving from the gate region to the drain electrode. The cavity is then filled with conductive material to form a field plate coupled to the source electrode, extending over the gate region, and having a surface facing the wafer and having a plurality of steps.
    Type: Grant
    Filed: July 30, 2019
    Date of Patent: May 12, 2020
    Assignee: STMICROELECTRONICS S.R.L.
    Inventor: Ferdinando Iucolano
  • Patent number: 10648813
    Abstract: A demodulator demodulates an in-phase component of an input signal which is in-phase and quadrature modulated. The demodulator includes a register storing a phase calibration value having an integer part and a fractional part. A noise-shaping modulator generates a succession of quantized values of integer type, the quantized values having a mean equal to the phase calibration value. A generating stage generates a demodulating signal phase locked with the input signal, the demodulating signal having a phase which depends linearly on the quantized values. A demodulating stage demodulates the input signal by means of the demodulating signal.
    Type: Grant
    Filed: March 13, 2018
    Date of Patent: May 12, 2020
    Assignee: STMicroelectronics S.r.l.
    Inventors: Alessandro Mecchia, Matteo Quartiroli, Paolo Pesenti
  • Patent number: 10651691
    Abstract: Radiofrequency energy that is captured by a radiofrequency power harvester is stored in a storage capacitance. One or more user circuits are supplied with energy stored in the storage capacitance. The harvester operates in alternated charge and burst phases with captured radiofrequency energy stored in the storage capacitance in the charge phases and supplied to the user circuits in the burst phases to perform user circuit tasks. In response to detection of completion of the user circuit tasks in a burst phase, the harvester causes operation to shift to the next charge phase.
    Type: Grant
    Filed: May 9, 2018
    Date of Patent: May 12, 2020
    Assignee: STMicroelectronics S.r.l.
    Inventors: Roberto Larosa, Giulio Zoppi
  • Patent number: 10651641
    Abstract: A circuit includes an input terminal and a regulated supply line for supplying an electronic device with an electrostatic discharge protection and driver circuit for the electronic device. The supply line is coupled to the input terminal via the circuitry, so that current injected into the input terminal may produce a voltage increase on the regulated supply line. A comparator sensitive to the voltage at the input terminal and the voltage on the supply line is provided. A current sink coupled with the supply line and being activatable to sink current from the supply line is also provided. The comparator is configured for activating the current sink as a result of the voltage at the input terminal exceeding the voltage on the supply line of a certain intervention threshold.
    Type: Grant
    Filed: June 29, 2017
    Date of Patent: May 12, 2020
    Assignees: STMICROELECTRONICS INTERNATIONAL N.V., STMICROELECTRONICS S.R.L.
    Inventors: Mauro Giacomini, Rajesh Narwal, Pravesh Kumar Saini
  • Patent number: 10643950
    Abstract: A die has a positional location in a wafer defined by first and second coordinates, the first and second coordinates identifying a respective horizontal and vertical location where the die was formed. An index formed on the die has a first comb structure of a first contiguous arrangement of first dots, and a second comb structure of a second contiguous arrangement of second dots. A first marker at a selected one of the first dots indicates a first digit of the first coordinate, and a first additional marker at a selected one of the first dots indicates a second digit of the first coordinate. A second marker at a selected one of the second dots indicates a first digit of the second coordinate, and a second additional marker at a selected one of the second dots indicates a second digit of the second coordinate.
    Type: Grant
    Filed: April 20, 2015
    Date of Patent: May 5, 2020
    Assignee: STMicroelectronics S.r.l.
    Inventors: Emanuele Brenna, Antonio Di Franco
  • Patent number: 10641821
    Abstract: An integrated circuit is fabricated on a semiconductor material die and adapted to be at least partly tested wirelessly. Circuitry for setting a selected radio communication frequency to be used for the wireless test of the integrated circuit is integrated on the semiconductor material die.
    Type: Grant
    Filed: October 13, 2017
    Date of Patent: May 5, 2020
    Assignee: STMicroelectronics S.r.l.
    Inventor: Alberto Pagani
  • Patent number: 10643940
    Abstract: A method for forming an electronic device includes embedding an integrated circuit die in a package including substrate of thermally conductive material with front and back surfaces and a through-hole. The die is sunk in the through-hole. A first insulating material layer covers the die front surface and the package front surface with first windows for accessing die terminals. Package terminals and package track are arranged on the first insulating layer. A second insulating material layer covers the first insulating layer and the package tracks with second windows for accessing the package terminals.
    Type: Grant
    Filed: January 11, 2019
    Date of Patent: May 5, 2020
    Assignee: STMicroelectronics S.r.l.
    Inventors: Fulvio Vittorio Fontana, Giovanni Graziosi
  • Patent number: 10639661
    Abstract: A device for dispensing a fluid includes a fixed part to be worn by a user, a fluid connection including a terminal outlet, a needle coupled to the terminal outlet of the fluid connection for dispensing a fluid, and a replaceable part coupled to the fixed part via the fluid connection. The replaceable part includes a reservoir for containing the fluid to be dispensed, and a micro-pump coupled to the reservoir to send the fluid to the fixed part through the fluid connection. An actuator operates the micro-pump. The fixed part includes a pressure-sensor in proximity to the terminal outlet of the fluid connection and is associated with dispensing the fluid from the needle. An electronic control module controls operation of the micro-pump via the pressure-sensor.
    Type: Grant
    Filed: September 28, 2015
    Date of Patent: May 5, 2020
    Assignee: STMICROELECTRONICS S.R.L.
    Inventor: Fulvio Vittorio Fontana
  • Patent number: 10642331
    Abstract: An electronic device may include a transducer configured to generate an electrical output responsive to an input, and a data storage element configured to change state responsive to the transducer. The electronic device may include a power circuit configured to turn on and supply power responsive to the data storage element changing state, and a processing circuit configured to be powered by the power circuit.
    Type: Grant
    Filed: November 29, 2017
    Date of Patent: May 5, 2020
    Assignee: STMICROELECTRONICS S.R.L.
    Inventors: Roberto Larosa, Daniele Mangano, Riccardo Condorelli, Giulio Zoppi, Natale Aiello