171 results about "Micro devices" patented technology

The invention provides a power equipment intelligent inspection abnormity identification method based on multi-dimensional data fusion, and the method comprises the steps: obtaining historical operation data and real-time monitoring data, fusing the historical operation data and the real-time monitoring data through a time sequence alignment method, generating a unified data set containing voltage, current, temperature and load information, and obtaining multi-dimensional equipment operation features; aiming at the outlier feature vector, adopting an adaptive neural network to adjust a weight coefficient of the health state evaluation model, generating an optimized weight parameter, and determining an optimized model structure; and performing health state evaluation on the unified data set through the optimized model structure, generating a health index scoring result of the equipment in combination with load over-limit period counting and a temperature abnormal fluctuation range, and determining an evaluation basis for guiding local maintenance of the miniature equipment.

The invention discloses a vein-shaped composite bionic micro-channel radiator with petal-shaped fins, relates to the technical field of radiators, and solves the problems that the temperature uniformity of a radiating area of a micro-channel radiator is poor, and extra pumping work consumption is caused. A first-stage vein flow channel is arranged in the center of a micro-channel heat sink, and a hot plate is arranged at the bottom of the micro-channel heat sink; the micro-channel heat sink comprises two first heat sinks and two second heat sinks, and the second heat sinks and the first heat sinks are in mirror symmetry. A plurality of second-level vein runners, a plurality of third-level vein runners and a plurality of fin arrays are arranged in the first heat sink, and the second-level vein runners are obliquely arranged and communicate with the first-level vein runners; the plurality of third-stage vein runners are arranged among the second-stage vein runners at equal intervals; the fin array is arranged at the tail end in the second-stage vein flow channel; the fin array comprises two fins, and the fins are arc-shaped plates. The invention has the characteristics of high heat dissipation efficiency, good temperature uniformity, low flow resistance and small pressure drop, thereby ensuring efficient and stable operation of high-power micro devices.

A method of manufacturing micro devices includes: preparing a GaN-based epitaxial structure including a p-type GaN layer, a n-type GaN layer on the p-type GaN layer, and an undoped GaN layer on the n-type GaN layer; forming a photoresist layer on the GaN-based epitaxial structure with the undoped GaN layer contacting the photoresist layer; patterning the photoresist layer; performing a plasma etching process to the GaN-based epitaxial structure through the patterned photoresist layer until the patterned photoresist layer is completely removed, such that a plurality of mesas are formed on the etched GaN-based epitaxial structure, in which a height of the mesas is at least 1.0 μm; and continuing to perform the plasma etching process until the undoped GaN layer is completely removed and the etched GaN-based epitaxial structure is cut into a plurality of micro devices.

A device transfer apparatus is provided. The device transfer apparatus includes a container of a polygonal shape which contains a substrate including device holes, vibration sources which generates vibration and transfers the vibration to a fluid in the container, and a processor which controls outputs of the vibration sources. The vibration sources include first group vibration sources arranged on a circumference of a first circle having a radius of a first distance from a central point, and second group vibration sources arranged on a circumference of a second circle which is concentric with the first circle and has a radius of a second distance that is longer than the first distance. The container is arranged on the central point and contains a fluid and micro devices distributed in the fluid. The processor controls the first group vibration sources and the second group vibration sources to output vibration.

The present invention discloses structures and methods for making tiled displays for optoelectronic systems. The invention provides for a method of making a micro device tiled display. The method provides a tile substrate having a plurality of tiles. The method provides for a backplane layer. The method provides for covering a first surface of one of the backplane layer or the tile substrate with an adhesive. The method provides for aligning and releasing the tiles to the backplane. The method provides for curing the adhesive. The method provides for filling an area or a trench between the plurality of tiles and an area or trench between micro devices with a filler layer, wherein the filler layer is extended to either side of the tile depending on the view direction.

A miniature device is provided for facilitating performing a therapeutic activity at a target site in a patient. The miniature device comprises a body defining a longitudinal axis extending along a longitudinal direction, and is configured to be maneuvered to move in the longitudinal direction by a linear magnetic field aligned along the longitudinal axis, and to be rotated about the longitudinal axis by a rotating magnetic field rotating about the longitudinal axis.

A semiconductor IC device (50) includes a conductive through device connection. The connection may be located within a double diffusion break (DDB) region (51) separating the active regions (52, 53). The connection may include a dummy S / D region (24) between the front contact (30) and the back contact (32). The semiconductor IC device may further include a first (20) and / or a second diffusion interruption isolation rail (22). A connection may be between the first and second diffusion-interrupting isolation rails. The connection locations within the DDB region thus increase the packaging density of the semiconductor IC device. In addition, the connection may reduce wiring complexity and resistance through the semiconductor IC device, which may improve semiconductor IC device performance. Furthermore, the connections may utilize structural instances (e.g., front contacts, back contacts, dummy S / D regions, etc.) mirrored with structural instances used by micro devices (e.g., transistors, etc.) within the active region, which may reduce manufacturing complexity.

The invention belongs to the technical field of lithium ion batteries, and discloses a machine learning SOC estimation method using relaxation time distribution and fractional order model parameters, and the method comprises the steps: firstly, employing a DRT and a fractional order model to comprehensively analyze EIS data; the DRT can make up for the defect that the fractional order model cannot completely describe the EIS data, and can obtain the characteristics related to SOC estimation on multiple scales with the fractional order model, thereby providing guarantee for the accuracy of the SOC, and greatly reducing the data volume. And secondly, combining advanced intelligent technologies such as a machine learning model to realize real-time estimation of the SOC. According to the method, the fractional order model and the data driving model are combined, and the SOC estimation precision is improved. The method can be widely applied to products using lithium ion batteries, such as electric automobiles, micro equipment and the like, especially electric automobiles with vehicle-mounted EIS, and has important social and economic values.

TLB poisoning attacks take advantage of security issues of translation lookaside buffer (TLB) management on SEV processors in Secure Encrypted Virtualization (SEV) virtual machines (VMs). In various embodiments, a hypervisor may poison TLB entries between two processes of a SEV VM to compromise the integrity and confidentiality of the SEV VM. Variants of TLB poisoning attacks and end-to-end attacks are shown to be successful on both Advanced Micro Devices (AMD) SEV and SEV-Encrypted State (SEV-ES). Countermeasures for thwarting TLB poisoning attacks include hardware-enforced TLB flush processes and re-exec schemes that, among other things, prevent attackers from manipulating TLB entries and causing a privileged victim process to execute malicious code in an attempt to bypass a password authentication.

The invention provides a miniaturized ear stud type positioning device based on a hybrid power supply system and an active signal enhancement technology, and belongs to the technical field of pet positioning. Comprising a titanium alloy shell, a zirconia ceramic wave-transparent layer is arranged on the inner wall of the titanium alloy shell, a magnetic type ear stud and a safety contact electrode are arranged outside the titanium alloy shell, a transparent nanowire solar film electrically connected with the safety contact electrode is arranged on the surface of the magnetic type ear stud, and a communication layer, a processing layer and a hybrid power supply layer are arranged in the titanium alloy shell. The communication layer comprises a UWB / BLE dual-mode antenna array, an IMU inertial navigation module and a signal processing FPGA module. According to the invention, the problem of long-acting power supply of the micro equipment in a continuous positioning mode can be solved, the cruising ability is high, and the signal transmission reliability in a complex indoor environment (the positioning success rate gt; 95%), the signal penetrability is better, non-sensitive wearing is achieved through the ear stud type design, wearing comfort is achieved, the functions are rich, and positioning-health monitoring integration is achieved by integrating a multi-mode sensor.

The invention relates to the technical field of dielectric microspheres, in particular to a method for preparing dielectric microspheres by combining ultraviolet curing and a microfluidic technology. The invention provides a preparation method of a dielectric microsphere by combining ultraviolet curing and a microfluidic technology. The specific preparation method comprises the following steps: uniformly mixing a polymer ceramic precursor solution with a surfactant, photosensitive resin and a photoinitiator, forming monodisperse liquid drops in the micro-fluidic chip, and carrying out ultraviolet light curing molding in a collection bottle. And cleaning the polymer microspheres, drying and curing the polymer microspheres in a drying oven, and degreasing and sintering the polymer microspheres in a tubular furnace and a muffle furnace respectively to prepare the dielectric microspheres. The dielectric microsphere prepared by combining ultraviolet curing and a microfluidic technology has the characteristics of uniform size, good dispersity, easiness in size and composition regulation and control and the like, and has a wide market prospect in the fields of micro devices and sensors.

A micro light emitting diode (LED) and a method of forming an array of micro LEDs for transfer to a receiving substrate are described. The micro LED structure may include a micro p-n diode and a metallization layer, with the metallization layer between the micro p-n diode and a bonding layer. A conformal dielectric barrier layer may span sidewalls of the micro p-n diode. The micro LED structure and micro LED array may be picked up and transferred to a receiving substrate.

The present application relates to an imaging device for telecentrically imaging multiple light beams into a target area and an associated micromirror device. The imaging device comprises a beam inclination correction element and a beam control device configured to image N ≥ 2 substantially non-overlapping light beams onto the beam inclination correction element and to control the position of one or more of the N light beams on the beam inclination correction element. The imaging device further comprises a beam imaging device configured to image the light beams corrected by the beam inclination correction element onto the target area, wherein the beam inclination correction element is configured to correct the inclination of the N light beams in each case such that the N light beams are imaged onto substantially non-overlapping positions in the target area.The beam inclination correction element can be implemented, for example, by a micromirror device.

The invention discloses a graphene-based microneedle sensing electrode preparation method and a blood fat detection system. The method comprises the following steps: preparing a microneedle array, preparing a graphene structure on the surface of the microneedle array by utilizing a chemical vapor deposition technology, and modifying cholesterol oxidase on the surface of the microneedle array; and coating the microneedle array with a water-soluble polymer to obtain the microneedle sensing electrode. According to the application, a graphene nanostructure is constructed on the surface of the microneedle, and cholesterol oxidase is fixed on the surface of the electrode, so that a great specific surface area and high electron mobility of the sensor are realized, the biocompatibility and detection precision of the sensor are improved, and accurate and convenient subcutaneous in-situ detection of cholesterol is realized. The method can be widely applied to the technical field of biomedical engineering micro devices.

What is disclosed is structures and methods of integrating micro devices into system substrate. Further, the disclosure, also relates to methods and structures for enhancing the bonding process of micro-devices into a substrate. More specifically, it relates to expanding the micro device area or bonding area of micro devices.

This application discloses a gas sensor and electronic device. The gas sensor includes a substrate, a micro-hot plate, and a microphone. At least one of the micro-hot plate and the microphone is disposed on the substrate. The micro-hot plate includes a heating element, and a thermoacoustic cavity is formed around the heating element. The microphone has a sensing cavity, with the sensing surface of the microphone facing the sensing cavity, and the sensing cavity communicating with the thermoacoustic cavity. The micro-hot plate also includes a first substrate and a heat insulation layer stacked together. The first substrate has a first through-hole, and the heating element is located within the heat insulation layer. Thus, the gas sensor of this embodiment, through the coordinated operation of the micro-hot plate and the microphone, can accurately detect the composition and concentration of gas using the thermoacoustic effect. Furthermore, it is fabricated using microfabrication technology, making it easy to integrate into various micro-devices and possessing broad application prospects.

The present disclosure describes a probe design to measure cycles of microdevices. In particular, the probe comprises, electrodes, dielectric, stimulating capacitor, voltage stimulating source for time varying stimulating voltage signal and a series switch to control biasing condition. The probe structure further has a probe tip and resting pads (ring shape or otherwise) along with a leveling mechanism and apparatus. The disclosure also describes a method to measure cycles of microdevices using the probe structure.

The invention relates to the technical field of metal materials, and discloses a shape memory alloy film and a preparation method and application thereof. The shape memory alloy film comprises the following components: 50-55 at.% of Ni, 40-45 at.% of Ti, 3-5 at.% of Cu and 2-4 at.% of M, and M is selected from one or more of Zr, Hf and Nb. The shape memory alloy film has remarkable superelasticity, the recoverable strain of the shape memory alloy film can reach 8% or above, meanwhile, the compressive yield stress exceeds 1.5 GPa, and the shape memory alloy film shows excellent cycle stability. The preparation method is simple in process and high in controllability, a new scheme is provided for solving the problem of unstable performance of an existing NiTi-based film, and the preparation method is particularly suitable for high-performance micro devices such as a micro electro mechanical system.

The invention provides a coaxial telescopic tubular piezoelectric linear motor, a driving device and a system, the coaxial telescopic tubular piezoelectric linear motor comprises a stick-slip moving assembly, the stick-slip moving assembly comprises a first moving tube body and a second moving tube body, the first moving tube body is provided with a moving groove and fins, the fins abut against the second moving tube body so as to form a friction pair, and the second moving tube body is provided with a second moving groove; the second movable pipe body is provided with a pin shaft and a connecting groove; and the piezoelectric driving assembly comprises a piezoelectric ceramic tube, and the piezoelectric ceramic tube is connected to the first movable tube body and is externally connected with power supply equipment. In the invention, all functional components are arranged along the same axis, so that the radial size is obviously reduced, the device is suitable for being integrated on micro equipment, parts such as traditional guide rails and springs are omitted in structural design, and the assembly complexity and cost are reduced. System integration is facilitated, and the movement precision can be further improved. Compared with a conventional piezoelectric driving motor, the piezoelectric driving motor has the advantages of miniaturization, integration, high precision, high compatibility and applicability and the like.