公开(公告)号：US20230328979A1

公开(公告)日：2023-10-12

申请号：US18185575

申请日：2023-03-17

Applicant: STMicroelectronics S.r.l.

Inventor： Roberto Bregoli ,  Alessandro Ferretti ,  Federica Rosa

IPC: H10B41/70 ,  G11C16/04 ,  G11C16/10 ,  H10B41/35 ,  G11C16/14

CPC classification number: H10B41/70 ,  G11C16/045 ,  G11C16/10 ,  G11C16/14 ,  H10B41/35

Abstract: A non-volatile memory cell includes a first well of a first conductivity type and a second well of a second conductivity type in a body adjacent to each other; a first conduction region, a second conduction region and a third conduction region in the first well, the first, second and third conduction regions being of the second conductivity type; a control gate region, of the first or second conductivity type, in the second well; a selection gate over the first well forming, together with the first and second conduction regions, a selection transistor; and a floating gate region. The floating gate region has a programming portion overlying the first well and a capacitive portion overlying the second well. The floating gate region forms, together with the second and third conduction regions, a storage transistor and, together with the control gate region, a capacitive element.

公开(公告)号：US20230326524A1

公开(公告)日：2023-10-12

申请号：US17718908

申请日：2022-04-12

Applicant: STMicroelectronics S.r.l. ,  Alma Mater Studiorum - Universita' Di Bologna

Inventor： Marco PASOTTI ,  Marcella CARISSIMI ,  Alessio ANTOLINI ,  Eleonora FRANCHI SCARSELLI ,  Antonio GNUDI ,  Andrea LICO ,  Paolo ROMELE

IPC: G11C13/00

CPC classification number: G11C13/0061 ,  G11C13/0004 ,  G11C13/0026 ,  G11C13/0038

Abstract: An in-memory computation (IMC) circuit includes a memory array formed by memory cells arranged in row-by-column matrix. Computational weights for an IMC operation are stored in the memory cells. Each column includes a bit line connected to the memory cells. A biasing circuit is connected between each bit line and a corresponding column output. A column combining circuit combines and integrates analog signals at the column outputs of the biasing circuits. Each biasing circuit operates to apply a fixed reference voltage level to its bit line. Each biasing circuit further includes a switching circuit that is controlled to turn on for a time duration controlled by asps comparison of a coefficient data signal to a ramp signal to generate the analog signal dependent on the computational weight. The ramp signal is generated using a reference current derived from a reference memory cell.

公开(公告)号：US20230324674A1

公开(公告)日：2023-10-12

申请号：US18131085

申请日：2023-04-05

Applicant: STMicroelectronics S.r.l.

Inventor： Nicolo' BONI ,  Roberto CARMINATI ,  Massimiliano MERLI ,  Carlo Luigi PRELINI ,  Tarek AFIFI AFIFI

IPC: G02B26/08 ,  B81B3/00 ,  B81C1/00

CPC classification number: G02B26/0858 ,  B81B3/007 ,  B81C1/00658 ,  B81B2201/042

Abstract: A microelectromechanical mirror device has, in a die of semiconductor material: a fixed structure defining a cavity; a tiltable structure carrying a reflecting region, elastically suspended above the cavity and having a main extension in a horizontal plane; at least one first pair of driving arms, carrying respective piezoelectric structures which can be biased to generate a driving force that causes rotation of the tiltable structure about a rotation axis parallel to a first horizontal axis of the horizontal plane; elastic suspension elements, which elastically couple the tiltable structure to the fixed structure at the rotation axis and are rigid to movements out of the horizontal plane and compliant to torsion about the rotation axis. In particular, the driving arms of the first pair are magnetically coupled to the tiltable structure to cause its rotation about the rotation axis by magnetic interaction, following biasing of the respective piezoelectric structures.

公开(公告)号：US20230324475A1

公开(公告)日：2023-10-12

申请号：US18335511

申请日：2023-06-15

Applicant: STMicroelectronics S.r.l.

Inventor： Davide Argento ,  Orazio Pennisi ,  Stefano Castorina ,  Vanni Poletto ,  Matteo Landini ,  Andrea Maino

IPC: G01R31/64 ,  G01R27/26 ,  G01R31/00

CPC classification number: G01R31/64 ,  G01R27/2605 ,  G01R31/006

Abstract: A system and method for measuring a capacitance value of a capacitor are provided. In embodiments, a resistor is coupled to a terminal of the capacitor. A difference in voltage at the terminal between a first time and a second time during a discharge routine of the capacitor is measured. The discharge routine includes sinking a current through a discharge circuit coupled to the resistor from first to second. Integration of a difference in voltage at terminals of the resistor during the discharge routine between the first and second times is also measured. The capacitance value is computed based on the measured difference in voltage, the measured integration, and the resistance value of the resistor. The health of the capacitor is determined based on a difference between the computed capacitance value and a threshold value.

公开(公告)号：US20230324229A1

公开(公告)日：2023-10-12

申请号：US18335003

申请日：2023-06-14

Applicant: STMICROELECTRONICS S.r.l.

Inventor： Maria Eloisa CASTAGNA ,  Giuseppe BRUNO

IPC: G01J5/16 ,  G01J5/20 ,  H01L27/146 ,  H04N5/33

CPC classification number: G01J5/16 ,  G01J5/20 ,  H01L27/14669 ,  H04N5/33 ,  G01J2005/0077

Abstract: A thermographic sensor is proposed. The thermographic sensor includes a plurality of sensing elements each comprising at least one thermo-couple. The thermographic sensor is integrated on a semiconductor on insulator body that is patterned to define a grid suspended from a substrate; for each sensing element, the grid has a frame with the cold joint of the thermo-couple, a plate with the hot joint of the thermo-couple and one or more arms sustaining the plate from the frame. The frames include one or more conductive layers of thermally conductive material for thermally equalizing the cold joints with the substrate. Moreover, each sensing element may also include a processing circuit for the thermo-couple that is integrated on the corresponding frame. A thermographic device including the thermographic sensor and a corresponding signal processing circuit, and a system including one or more thermographic devices are also proposed.

公开(公告)号：US20230318589A1

公开(公告)日：2023-10-05

申请号：US18127397

申请日：2023-03-28

Applicant: STMicroelectronics S.r.l. ,  STMicroelectronics (Rousset) SAS

Inventor： Giulio ZOPPI ,  Vincent Pascal ONDE ,  Giuseppe ROMANO

IPC: H03K5/1254 ,  G01D5/347 ,  H03K3/013

CPC classification number: H03K5/1254 ,  G01D5/3473 ,  H03K3/013

Abstract: A first input node receives a first input signal and a second input node receives a second input signal. The first and second input signals are in phase quadrature. An edge detector circuit senses the first input signal and produces a pulsed signal indicative of edges detected in the first input signal. A pulse skip and reset circuit senses the pulsed signal and the second input signal, and produces a reset signal indicative of pulses detected in the pulsed signal while the second input signal is de-asserted. A sampling circuit senses the second input signal and the reset signal, and produces an output signal that is deasserted in response to assertion of the second input signal and is asserted in response to a pulse being detected in the reset signal.

公开(公告)号：US20230317537A1

公开(公告)日：2023-10-05

申请号：US18193095

申请日：2023-03-30

Applicant: STMICROELECTRONICS S.r.l.

Inventor： Sergio SAVINO ,  Francesco SALAMONE

IPC: H01L23/31 ,  H01L23/057 ,  H01L23/498 ,  H01L23/00

CPC classification number: H01L23/3121 ,  H01L23/057 ,  H01L23/315 ,  H01L23/49805 ,  H01L24/29 ,  H01L2924/1811 ,  H01L2924/1425

Abstract: Power module packaged in a housing accommodating a carrying substrate forming a plurality of connection regions of conductive material. An electronic component is arranged inside the housing, attached to a connection region of the plurality of connection regions. An electrical connector, coupled to the electronic component, extends towards the main surface of the housing and is accessible from the outside of the housing. The electrical connector has a tubular portion forming a pillar fixed to a pin which protrudes from the greater surface of the housing. The housing includes a packaging mass of electrically insulating material that embeds the pillar and blocks it therein.

公开(公告)号：US20230314138A1

公开(公告)日：2023-10-05

申请号：US17712718

申请日：2022-04-04

Applicant: STMicroelectronics, Inc. ,  STMicroelectronics S.r.l.

Inventor： Yamu HU ,  Naren K. SAHOO ,  Pavan NALLAMOTHU ,  Deyou FANG ,  David MCCLURE ,  Marco GARBARINO

IPC: G01C19/5726 ,  G01C19/5762

CPC classification number: G01C19/5726 ,  G01C19/5762

Abstract: At start-up of a microelectromechanical system (MEMS) gyroscope, the drive signal is inhibited, and the phase, frequency and amplitude of any residual mechanical oscillation is sensed and processed to determine a process path for start-up. In the event that the sensed frequency of the residual mechanical oscillation is a spurious mode frequency and a quality factor of the residual mechanical oscillation is sufficient, an anti-phase signal is applied as the MEMS gyroscope drive signal in order to implement an active dampening of the residual mechanical oscillation. A kicking phase can then be performed to initiate oscillation. Also, in the event that the sensed frequency of the residual mechanical oscillation is a resonant mode frequency with sufficient drive energy, a quadrature phase signal with phase lock loop frequency control and amplitude controlled by the drive energy is applied as the MEMS gyroscope drive signal in order to induce controlled oscillation.

公开(公告)号：US20230314117A1

公开(公告)日：2023-10-05

申请号：US18191689

申请日：2023-03-28

Applicant: STMicroelectronics S.r.l.

Inventor： Dario Livornesi ,  Mattia Fausto Moretti ,  Paolo Pulici ,  Alessio Emanuele Vergani ,  Alessio Facen ,  Michele Bartolini ,  Roberto Faravelli ,  Francesco Piscitelli

IPC: G01B7/14 ,  H03F3/16 ,  G11B27/36

CPC classification number: G01B7/14 ,  H03F3/16 ,  G11B27/36

Abstract: According to an embodiment, a circuit includes a core and low-frequency recovery circuits. The core circuit is configured to bias a resistive sensor used to measure a fly height of a hard disk drive. The core circuit is additionally configured to amplify a high-frequency component of a sensing signal of the resistive sensor, the sensing signal indicating the fly height. The low-frequency recovery circuit is configured to amplify the sensing signal's low-frequency component.

公开(公告)号：US11778358B2

公开(公告)日：2023-10-03

申请号：US17567777

申请日：2022-01-03

Applicant: STMicroelectronics S.r.l.

Inventor： Enrico Rosario Alessi ,  Fabio Passaniti ,  Tiziano Chiarillo ,  Massimiliano Pesaturo

IPC: H04R25/00 ,  H04R1/10 ,  G01R29/12 ,  H04R29/00

CPC classification number: H04R1/1016 ,  G01R29/12 ,  H04R1/1041 ,  H04R29/00 ,  H04R2420/07 ,  H04R2460/15

Abstract: A detection device includes a pressure sensor, which provides a pressure signal indicative of an ambient pressure in an operating environment. An electrostatic-charge-variation sensor provides a charge-variation signal indicative of a variation of electrostatic charge associated with the operating environment, and processing circuitry is coupled to the pressure sensor and to the electrostatic-charge-variation sensor so as to receive the pressure signal and the charge-variation signal, and jointly processes the pressure signal and the charge-variation signal for detecting a variation between a first operating environment and a second operating environment for the detection device. The second operating environment is different from the first operating environment.