Abstract: A camera module and an electronic device are provided. The camera module includes a voice coil motor, a lens, a module circuit board, and an image sensor, where the voice coil motor includes a base, a driving mechanism, and a housing, the lens is mounted in the driving mechanism which is connected to the base, both the base and the image sensor are disposed on the module circuit board, the image sensor is located on a light exit side of the lens, and the housing is fastened to the base and covers at least a part of the driving mechanism; the base includes a plastic piece and a metal piece, and the metal piece is fastened to the plastic piece; and the housing includes a metal portion fastened to the metal piece, and the metal piece is electrically connected to a ground pin of the module circuit board.

Abstract: A lens driving apparatus includes a base, a moving base, a lens carrier, a variable aperture, and a focus driving device. The moving base is disposed on the base; the lens carrier is disposed on the moving base; the variable aperture is disposed on a side, of the lens carrier, away from the base; the focus driving device is configured to drive the lens carrier to move relative to the moving base in an axial direction of the variable aperture. The base has a plurality of corner portions in a circumferential direction, at least two of the corner portions are provided with first pins, and the first pins are electrically connected to the variable aperture and the focus driving device through a connection line.

Abstract: This application provides a camera module and an electronic device, and relates to the field of electronic device technologies. The camera module includes an optical camera lens, a variable aperture, and an SMA motor. The variable aperture has an aperture hole whose size is adjustable. The SMA motor includes a first carrier, a base, and an SMA drive assembly. The optical camera lens is fastened to the first carrier. The SMA drive assembly is connected between the first carrier and the base. The SMA drive assembly is configured to drive the first carrier, the optical camera lens, and the variable aperture to move together relative to the base, so as to implement automatic focusing and/or optical image stabilization.

Abstract: This application discloses a coating method for making a chip. The method includes: fixing a substrate on a base. The substrate includes a hole. The method includes controlling an included angle between a plane on which the substrate is located and a deposition direction of a coating material to be greater than 0 degrees and less than 90 degrees. The method includes controlling the substrate to rotate with respect to an axis perpendicular to the plane on which the substrate is located. The method includes during the rotation of the substrate, controlling the coating material to enter the hole along the deposition direction such that the coating material is deposited on a sidewall of the hole.

Abstract: A through silicon via interconnection structure and a method of forming same, and a quantum computing device are provided. The method includes: providing a silicon wafer, having a first surface and a second surface opposite to each other; forming, in the silicon wafer, a through silicon via penetrating through the silicon wafer in a direction from the first surface to the second surface of the silicon wafer; forming a groove communicating with the through silicon via in a target surface of the first surface and the second surface of the silicon wafer using a photolithography process; and forming a superconducting thin film in the groove and the through silicon via to obtain the through silicon via interconnection structure.

Abstract: Disclosed are a silicon wafer and a method for filling a silicon via thereof, and belong to the field of superconducting quantum technologies. The method includes: obtaining a silicon wafer including at least one silicon via; providing a superconducting material on at least one side of the silicon wafer, the at least one side comprising a side where an opening of the silicon via is located; and heating and pressurizing the superconducting material to fill the superconducting material into the silicon via.

Abstract: A fish-like shape robotic device includes a fish-like shape carrier portion, a vibrable tail portion, a wireless power receiving module, a driving module, and at least one functional sensor. The fish-like shape carrier portion includes a head portion and a pair of side portions. The wireless power receiving module is configured to receive a wireless power and disposed on the vibrable tail portion and the side portions. The driving module is disposed on the vibrable tail portion, in which the wireless power receiving module transmits the wireless power to the driving module, such that the driving module enables the vibrable tail portion vibrate. The at least one functional sensor is disposed at the head portion and configured to sense a characteristic of an aquatic environment, or detect a living body or a bio-like structure in the aquatic environment, so as to obtain at least one sensing electrical signal.

Abstract: A method and device for preparing a Josephson junction are provided. The method includes: preparing a photoresist film layer comprising an undercut structure on a substrate, the undercut structure comprising a first strip-shaped opening and a second strip-shaped opening; performing, at a first angle, evaporation on the photoresist film layer obliquely to the substrate, to prepare a first strip-shaped superconducting layer through the first strip-shaped opening; and performing, at a second angle, evaporation on the photoresist film layer obliquely to the substrate, to prepare a second strip-shaped superconducting layer through the second strip-shaped opening, the first strip-shaped superconducting layer and the second strip-shaped superconducting layer crossing each other, and an intersection of the first strip-shaped superconducting layer and the second strip-shaped superconducting layer being isolated by an oxidation layer to form a Josephson junction.

Abstract: A pan-tilt-zoom device includes a housing, a carrier, an image sensor, and a shape memory alloy (SMA) motor. An accommodating cavity is formed in the housing, and a first opening in communication with the accommodating cavity is provided on the housing. The carrier is located in the accommodating cavity, the carrier has a lens mounting hole, and an opening at one end of the lens mounting hole faces the first opening. The image sensor is located in the accommodating cavity and is disposed on a side that is of the carrier and that is away from the first opening, and a photosensitive surface of the image sensor faces an opening at the other end of the lens mounting hole. The SMA motor is configured to drive the carrier to tilt in the accommodating cavity along with the image sensor in any direction around, to implement optical image stabilization.

Abstract: A variable aperture, a camera module, and an electronic device are provided. The variable aperture includes a fixing base, a rotating support, a mover, a stator, and a plurality of blades. The rotating support is disposed on an inner side of the fixing base. In this way, the rotating support does not interfere with components on an outer side of the fixing base, thereby ensuring accuracy of a rotation angle of the rotating support in a rotating process. Components on the outer side of the fixing base may be disposed close to the fixing base and arranged more compactly, thereby facilitating miniaturization of the variable aperture. The mover is fixedly connected to an outer peripheral side surface of the rotating support, and the stator is disposed facing the mover.

Abstract: Database data of a database service may be privately shared across provider network regions. A database producer can authorize an account of to access a database in another region of the provider network. The consumer of the database can associate the database in order to accept the permission to access the database. The database can then be created as an external table at a consumer database engine and metadata for the database privately shared between producer and consumer database engines that can be used to query the external table.

Abstract: A system includes a motor, a camera module, and a mobile terminal. The motor includes a base, a support base, and a shape memory alloy actuator. The shape memory alloy actuator is connected between the base and the support base, and the shape memory alloy actuator is configured to drive the support base to move relative to the base.

Abstract: A motor, camera module and device having a base, an image stabilization bracket, a first image stabilization magnetic piece, a second image stabilization magnetic piece, a first image stabilization coil, a second image stabilization coil, and a guide bracket having an L-shape. The first image stabilization magnetic piece is fastened to a first edge portion of the image stabilization bracket, and the second image stabilization magnetic piece is fastened to a second edge portion of the image stabilization bracket. The image stabilization bracket, and the first and second image stabilization coils are fastened to the base. Three support portions of the guide bracket are all located between the image stabilization bracket and the base, are disposed in a one-to-one correspondence with three corner portions of the image stabilization bracket, and are connected to the base and the image stabilization bracket through support pieces.

Abstract: A motor includes a base, an image stabilization carrier, a focus carrier, an image stabilization drive mechanism, and a focus drive mechanism. The image stabilization carrier is movably connected to the base, the focus carrier is located on an inner side of the image stabilization carrier, the focus carrier is movably connected to the image stabilization carrier, and the focus carrier is configured to mount a lens. The image stabilization drive mechanism is configured to drive the image stabilization carrier and the focus carrier to move in a first direction and/or a second direction relative to the base, and the focus drive mechanism is configured to drive the focus carrier to move in a third direction relative to the image stabilization carrier.

Abstract: This application relates to the field of electronic device technologies, and provides a camera module and an electronic device, to reduce a volume of the camera module while improving image stabilization performance of the camera module. The camera module includes an optical lens, a module circuit board, a photosensitive chip, and an actuator. The module circuit board is disposed on a light exit side of the optical lens and includes a fastening part, a moving part, and an elastic part. The moving part is elastically connected to the fastening part through the elastic part. The photosensitive chip is disposed on a side that is of the moving part and that faces the optical lens. The actuator includes a fastened clamping jaw, a movable clamping jaw, and a wire. The actuator drive the moving part to move relative to the fastening part when the length of the wire changes.

Abstract: A qubit assembly and a preparation method thereof, a quantum chip, and a chip preparation system are provided, which relate to the field of micro-nanofabrication technologies. The preparation method includes: preparing an underlying film of a qubit assembly on a substrate; preparing an underlying circuit based on the underlying film, a surface of the underlying circuit having a nitride passivation layer; and preparing, on the substrate, a qubit connected to the underlying circuit, to obtain the qubit assembly.

Abstract: This application discloses an optical lens, a camera module, and an electronic device. The optical lens includes a first lens group and a second lens group that are arranged from an object side to an image side, where the first lens group has positive focal power, the second lens group has negative focal power, and the first lens group and/or the second lens group are/is focusing lens groups/a focusing lens group. In a focusing process in which the optical lens switches from a long shot to a close-up shot, a spacing between the first lens group and the second lens group increases, and an effective focal length of the optical lens decreases. The optical lens satisfies a relational expression: F2/EFL>?5, where F2 is a focal length of the second lens group, and EFL is the effective focal length of the optical lens.

Abstract: The present disclosure relates to an insulating coating, which comprises the following components: a water-soluble metal inorganic salt A containing a water-soluble phosphate A1, which comprises a water-soluble phosphate of at least one of aluminum, zinc, magnesium and manganese; a water dispersible organic emulsion B, which comprises at least one of an epoxy emulsion and a curing agent thereof, polyester, polyurethane, polyacrylate and an ethylene-vinyl acetate copolymer; an additive C, which comprises at least one of a structure reinforcing additive C1 and a heat-resistance reinforcing additive C2, wherein the structure reinforcing additive C1 comprises an inorganic nanoparticulate matter, and the heat-resistance reinforcing additive C2 is selected from at least one of boric acid and a water-soluble salt of molybdenum, tungsten, vanadium or titanium; an auxiliary agent D1 and a solvent D2, wherein the solid content ratio of the water-soluble metal inorganic salt A to the water dispersible organic emulsion B

Abstract: In a method for determining a superconducting impedance matched parametric amplifier, a center wavelength parameter, a gain parameter, and a bandwidth parameter of the superconducting impedance matched parametric amplifier are determined. An impedance value of an impedance matching line of the superconducting impedance matched parametric amplifier and a capacitance value of the amplifier are determined based on the wavelength parameter, the gain parameter, and the bandwidth parameter. A line width dimension of a coplanar waveguide of the superconducting impedance matched parametric amplifier is calculated based on the impedance value of the impedance matching line. A stub dimension of the superconducting impedance matched parametric amplifier is calculated based on the impedance value of the impedance matching line and the capacitance value of the amplifier.

Abstract: An electronic device includes a camera assembly and an image stabilization motor. The image stabilization motor includes a base, a movable assembly, a suspension assembly, a driving assembly, and a first flexible circuit board. The movable assembly is disposed at the bottom of the base, and includes a main circuit board and an image sensor. One end of the first flexible circuit board is connected to an end surface of the main circuit board, the other end of the first flexible circuit board is connected to a board-to-board connector, and at least a portion of the first flexible circuit board is attached to a side wall of the base. A mover is configured to drive, under an action of a stator, the movable assembly to shift and roll on a plane on which an image sensor is located.