Abstract: A device includes a driver circuit and diagnostic circuitry coupled to the driver circuit. The diagnostic circuitry includes an on-state diagnostic circuit and an off-state diagnostic circuit. The diagnostic circuitry, in operation: generates a configuration signal associated with an operative condition of the driver circuit based on a comparator output of the off-state diagnostic circuit; diagnoses conditions associated with the driver circuit; and controls operation of the on-state diagnostic circuit based on the configuration signal.
Abstract: A MEMS device having a body with a first and a second surface, a first portion and a second portion. The MEMS device further has a cavity extending in the body from the second surface; a deformable portion between the first surface and the cavity; and a piezoelectric actuator arranged on the first surface, on the deformable portion. The deformable portion has a first region with a first thickness and a second region with a second thickness greater than the first thickness. The second region is adjacent to the first region and to the first portion of the body.
Abstract: The present description concerns a converter comprising an AC-DC conversion stage comprising a first thyristor, a first power supply circuit delivering a first reference voltage between a first node and a second node, and a second power supply circuit delivering a second reference voltage between third and fourth nodes, the cathode of the first thyristor being coupled to the first node of the first power supply circuit by a first switch and being connected to the fourth node, the second power supply circuit comprising a first rectifying element coupled to the second node of the first power supply circuit and coupled to the third node.
Abstract: Packaged device having a carrying base; an accommodation cavity in the carrying base; a semiconductor die in the accommodation cavity, the semiconductor die having die pads; a protective layer, covering the semiconductor die and the carrying base; first vias in the protective layer, at the die pads; and connection terminals of conductive material. The connection terminals have first connection portions in the first vias, in electrical contact with the die pads, and second connection portions, extending on the protective layer, along a side surface of the packaged device.
Abstract: A semiconductor device having a channel between active sections or portions of the device is disclosed. An elastic material, such as dielectric or a polymer, is deposited into the channel and cured to increase flexibility and thermal expansion properties of the semiconductor device. The elastic material reduces the thermal and mechanical mismatch between the semiconductor device and the substrate to which the semiconductor device is coupled in downstream processing to improve reliability. The semiconductor device may also include a plurality of channels formed transverse with respect to each other. Some of the channels extend all the way through the semiconductor device, while other channels extend only partially through the semiconductor device.
Abstract: A charge-balance power device includes a semiconductor body having a first conductivity type. A trench gate extends in the semiconductor body from a first surface toward a second surface. A body region has a second conductivity type that is opposite the first conductivity type, and the body region faces the first surface of the semiconductor body and extends on a first side and a second side of the trench gate. Source regions having the first conductivity type extend in the body region and face the first surface of the semiconductor body. A drain terminal extends on the second surface of the semiconductor body. The device further comprises a first and a second columnar region having the second conductivity, which extend in the semiconductor body adjacent to the first and second sides of the trench gate, and the first and second columnar regions are spaced apart from the body region and from the drain terminal.
Type:
Application
Filed:
September 5, 2024
Publication date:
December 26, 2024
Applicant:
STMICROELECTRONICS S.r.l.
Inventors:
Antonello SANTANGELO, Giuseppe LONGO, Lucio RENNA
Abstract: A method includes receiving electrostatic sensor data in a processor of an electronic device from an electrostatic sensor mounted behind a touchscreen of the electronic device and using the electrostatic sensor data to determine when the touchscreen is being used. Based on whether or not the touchscreen is being used, an on-table detection (OTD) algorithm is selected from a plurality of available OTD algorithms. In one or more examples, the OTD algorithm may also be selected based on the current device mode of the electronic device, which may be determined from a lid angle, a screen angle, and a keyboard angle of the electronic device. The selected OTD algorithm is run to determine whether or not the electronic device is located on a stationary or stable surface.
Type:
Grant
Filed:
October 20, 2022
Date of Patent:
December 24, 2024
Assignee:
STMICROELECTRONICS S.R.L.
Inventors:
Stefano Paolo Rivolta, Federico Rizzardini
Abstract: A master device issues memory burst transaction requests via an interconnection bus to fetch data from a slave device. A cipher engine is coupled to the interconnection bus and decrypts the fetched data to produce plaintext data for the master device. The cipher engine selectively operates according to a stream cipher operation mode, or a block cipher operation mode. The cipher engine is configured to stall a read data channel of the interconnection bus between the slave device and the master device in response to the cipher engine switching from the block cipher operation mode to the stream cipher operation mode. The read data channel is reactivated in response to a last beat of a read burst of the plaintext data produced by the cryptographic engine.
Abstract: A first circuit is coupled to a second circuit via a communication link. The first circuit generates a first validation signal, a second validation signal, and control signals, and transmits the first and second validation signals to the second circuit via the communication link. The second circuit validates the control signals based on the first and second binary validation signals. The validating includes: verifying that when the first validation signal has a first value, the second validation signal has a second value different from the first value; verifying that when the second validation signal has the first value, the first validation signal has the second value; verifying detection of a transition edge of the first validation signal within a threshold number of clock cycles; and verifying detection of a transition edge of the second validation signal within the threshold number of clock cycles.
Abstract: The present disclosure is directed to a semiconductor package including a first laser direct structuring (LDS) resin layer and a second LDS resin layer on the first LDS resin layer. Respective surfaces of the first LDS resin layer and the second LDS resin layer are patterned utilizing an LDS process by exposing the respective surfaces to a laser. Patterning the first and second LDS resin layers, respectively, activates additive material present within the first and second LDS resin layers, respectively, converting the additive material from a non-conductive state to a conductive state. The LDS process is followed by a chemical plating step and an electrolytic plating process to form conductive structure coupled to a plurality of die within the first and second LDS resin layers. A molding compound layer is formed on surfaces of the conductive structures and covers the surfaces of the conductive structures.
Abstract: An example apparatus, an automotive lighting system, and an automotive lighting apparatus for driving a lighting element in an automotive lighting system are provided. The example apparatus includes a lighting element and a lighting element driver electrically connected to the lighting element and a serial communication bus. The lighting element driver includes a flexible circuit board, a serial communication interface configured to receive a serial communication message related to the lighting element, a power supply interface electrically connected to a power source, and a lighting element driver processor mounted on and electrically connected to the flexible circuit board. The lighting element driver transmits power from the power supply interface to the lighting element based at least in part on the serial communication message.
Abstract: The photodetector is formed in a silicon carbide body formed by a first epitaxial layer of an N type and a second epitaxial layer of a P type. The first and second epitaxial layers are arranged on each other and form a body surface including a projecting portion, a sloped lateral portion, and an edge portion. An insulating edge region extends over the sloped lateral portion and the edge portion. An anode region is formed by the second epitaxial layer and is delimited by the projecting portion and by the sloped lateral portion. The first epitaxial layer forms a cathode region underneath the anode region. A buried region of an N type, with a higher doping level than the first epitaxial layer, extends between the anode and cathode regions, underneath the projecting portion, at a distance from the sloped lateral portion as well as from the edge region.
Abstract: The present disclosure is directed to a device configured to detect whether the device is in a bag or being taken out of the bag. The device determines whether the device is in a bag or being taken out of the bag based on motion measurements generated by a motion sensor and electrostatic charge measurements generated by an electrostatic charge sensor. By using both distance measurements and motion measurements, the device is able to detect whether the device is in the bag or being taken out of the bag with high efficiency, accuracy, and robustness.
Type:
Grant
Filed:
July 21, 2023
Date of Patent:
December 10, 2024
Assignee:
STMICROELECTRONICS S.r.l.
Inventors:
Stefano Paolo Rivolta, Roberto Mura, Marco Bianco
Abstract: A method for determining a fly height includes measuring a first differential voltage between a first head of a disk drive and a reference voltage with a first front end circuit, converting the first differential voltage to a first analog current signal with the first front end circuit, and converting the first analog current signal to a second differential voltage with a first back end circuit. The first front end circuit is coupled with the first head. The first back end circuit is coupled with the first front end circuit. The method further includes determining a first capacitance between the first head and a first disk of the disk drive based on the second differential voltage and determining the fly height between the first head and the first disk using the first capacitance.
Abstract: A device includes a memory and processing circuitry coupled to the memory. The processing circuitry, in operation: estimates an angular rate of change and determines a rotational versor based on the rotational data; and estimates a gravity vector based on the angular rate of change and the rotational versor. The processing circuitry generates a dynamic gravity vector based on the estimated gravity vector, a correction factor and an estimated error in estimated gravity vector. The processing circuitry estimates a linear acceleration and determines an acceleration versor based on the acceleration data, and determines the correction factor based on the linear acceleration. The processing circuitry estimates the error in the estimated gravity vector based on the acceleration versor.
Abstract: A method includes retrieving a plurality of datasets from respective memory registers of a memory and storing the retrieved plurality of datasets in respective register portions of a first register. A dataset of data-processing coefficients are stored in a second register. First processing is applied using, as the first operand, a first sub-set of dataset elements stored in the first register, and using, as the second operand, the data-processing coefficients, obtaining a first result. Second processing is applied using, as the first operand, a second sub-set of dataset elements stored in the first register comprised in a second window having a size equal to the dataset size, and using, as the second operand, the replica of the dataset of data-processing coefficients, obtaining a second result. An output is generated based on the first and second results. The first and second processing may perform multiply accumulate (MAC) operations.
Type:
Grant
Filed:
March 16, 2021
Date of Patent:
December 10, 2024
Assignee:
STMICROELECTRONICS S.r.l.
Inventors:
Xiao Kang Jiao, Fabio Giuseppe De Ambroggi, Loris Luise
Abstract: A random access memory (RAM) includes an array of arranged in rows and columns. The rows of the storage elements correspond to respective memory locations of the RAM. The storage elements of a row have a common gated-clock input and respective data inputs, and each row of the array of storage elements includes a plurality of D type latches. In operation, an address input of the RAM receives a memory address identifying a memory location in the RAM. Clock gating circuitry of the RAM, generates respective gated-clock signals for the rows of the array of storage elements based on the memory address received at the address input. Memory operation are performed using storage elements of the array based on the gated-clock signals.
Abstract: The disclosure concerns a resistive memory cell, including a stack of a selector, of a resistive element, and of a layer of phase-change material, the selector having no physical contact with the phase-change material. In one embodiment, the selector is an ovonic threshold switch formed on a conductive track of a metallization level.
Abstract: A device includes a memory and processing circuitry coupled to the memory. The processing circuitry, in operation, generates an indication of a predicted difference in a direction of arrival (DoA) of a signal using a trained autoregressive model. A predicted indication of a DoA of the signal is generated based on a previous indication of the DoA of the signal and the indication of the predicted difference in the DoA of the signal. The processing circuitry actuates or controls an antenna array based on predicted indications of the DoA of the signal.
Type:
Grant
Filed:
August 30, 2021
Date of Patent:
December 3, 2024
Assignees:
STMICROELECTRONICS S.r.l., STMICROELECTRONICS INTERNATIONAL N.V.
Inventors:
Danilo Pietro Pau, Alessandro Cremonesi
Abstract: The present disclosure relates to a method for protecting a first data item applied to a cryptographic algorithm, executed by a processor, wherein said algorithm is a per-round algorithm, with each round processing contents of first, second and third registers, the content of the second register being masked, during first parity rounds, by the content of a fourth register and the content of the third register being masked, during second parity rounds, by the content of a fifth register.