Abstract: A contact structure includes a cavity comprising a device contact formed on a surface of a substrate, a bottom surface, and sidewalls. A metal silicide layer disposed over the surface of the device contact, the bottom surface, and the sidewalls of the cavity, and a treated surface formed over a portion of the metal silicide layer disposed over the sidewalls of the cavity.

Abstract: A polycrystalline element includes a table formed of polycrystalline diamond. The table includes a first surface; a second surface spaced apart from the first surface; and at least one side extending between the first surface and the second surface. The table also includes a plurality of extensions also formed of polycrystalline diamond, wherein at least one extension of the plurality of extensions extends away from at least one of the first surface and the at least one side. A radial line extends radially outward from a center axis of the first surface intersects each of a long axis of a subset of a plurality of extensions. Optionally, the polycrystalline diamond of at least one extension of the plurality of extensions is contiguous with the polycrystalline diamond of the table. The polycrystalline element may be used in downhole tools for boring and well drilling, machine tools, and bearings.

Abstract: This disclosure provides a method and an apparatus for processing signals in wireless communication. The method includes: determining peak points respectively corresponding to first sampling points of an input signal, which are to be peak-reduced; generating a peak reduction value sequence with peak reduction values based on amplitudes of the peak points; generating a peak reduction signal by performing peak shaping on the peak reduction value sequence based on position displacing of the peak points from the first sampling points; and generating an output signal by subtracting the peak reduction signal from the input signal.

Abstract: Disclosed is an optimization modeling and robust control method for a soft robot based on a fusion prediction equation, including the following steps: deriving measurement coordinates based on the fusion prediction equation; designing an observation function based on the measurement coordinates; identifying a Koopman model based on the observation function; and designing a robust model predictive controller based on the Koopman model. Further disclosed are a fusion prediction equation and a derivation method thereof, which can derive correct, abundant but non-redundant measurement coordinates, overcoming the problem of single measurement coordinates in a soft robot system, thereby being conducive to simplifying a design process of the observation function and further improving the accuracy of the Koopman model for the soft robot.

Abstract: Disclosed is an occluding stent. The occluding stent includes a distal flange occluding body, a proximal flange occluding body, and a connection portion. External surfaces of the distal flange occluding body and the proximal flange occluding body are both provided with a coating. An external surface of the connection portion is wholly or partially provided with a coating. A first occluding coating is provided between the distal flange occluding body and an inner cavity of the connection portion. The present invention overcomes the defect that the existing occluder device for closure of an esophagobronchial fistula is harmful to surrounding tissues, makes the device retractable, enhances the safety of the device, and improves life and treatment of patients. A new safe and effective treatment method for an esophagobronchial fistula is provided.

Abstract: Embodiments of the disclosure include a method of forming a gate-all-around (GAA) contact structure on a semiconductor substrate. The method will include removing material from surfaces of a feature formed in a surface of a substrate that includes a plurality of features that each include a plurality of source/drain contact surfaces, selectively forming a reaction product material over a surface of each of the plurality of source/drain contact surfaces, heating the substrate to a first temperature to remove the reaction product material from the surface of each of the plurality of contacts, selectively forming a first metal layer on the surface of each of the plurality of contacts, selectively forming a second metal layer on the first metal layer, and filling the feature with a conductor material, wherein the conductor material comprises tungsten (W) or molybdenum (Mo).

Abstract: The present disclosure discloses an asymmetric wavelength multiplexing and demultiplexing chip based on inverse design, which belongs to the technical field of optical components, systems or instrument. The chip includes the first-level asymmetric wavelength multiplexing and demultiplexing unit and the second-level symmetric wavelength multiplexing and demultiplexing unit, which is constructed by silicon based photonics integration technology, includes a substrate, a bottom cladding layer, a core layer and a top cladding layer sequentially stacked from bottom to top. The functional regions inside the first-level unit and the second-level unit are designed based on the inverse design algorithms, and are composed of subunits on the submicron or nanometer scale.

Abstract: An unmanned aerial vehicle (UAV)-assisted hanging ring robot for live installation and grounding includes a hanging tray, a wire hanging bracket, a hanging wire, an overturning stay wire, an overturning frame, a support, an electric lock, a walking wheel, a driving motor, a workbench, a clamp seat, a puncture clamp, a tightening mechanism, a remote controller, and a controller. The hanging tray is installed at the bottom of a UAV, one end of the overturning stay wire is connected to the overturning frame, the other end thereof hangs on ground, the driving motor is installed on the overturning frame, the walking wheel is connected to the driving motor, the puncture clamp is installed on the clamp seat, the tightening mechanism is installed on the workbench, and connected to the puncture clamp, and the electric lock, tightening mechanism, driving motor, and remote controller are connected to the controller.

Abstract: An audio device calibration system includes an acoustic sensor, one or more processors, and a memory storing instructions that, when executed by the one or more processors, configure the processors to obtain a response curve of a device under test, identify an error curve, and calibrate the audio device based on a compensation curve that corresponds to the error curve to perform automatic quality control and calibration for audio devices.

Abstract: A polycrystalline element includes a table formed of polycrystalline diamond. The table includes a first surface; a second surface spaced apart from the first surface; and at least one side extending between the first surface and the second surface. The table also includes a plurality of extensions also formed of polycrystalline diamond, wherein at least one extension of the plurality of extensions extends away from at least one of the first surface and the at least one side. A radial line extends radially outward from a center axis of the first surface intersects each of a long axis of a subset of a plurality of extensions. Optionally, the polycrystalline diamond of at least one extension of the plurality of extensions is contiguous with the polycrystalline diamond of the table. The polycrystalline element may be used in downhole tools for boring and well drilling, machine tools, and bearings.

Abstract: Embodiments include a method of forming a contact structure on a semiconductor substrate. The method including selectively depositing a metal silicide layer over a contact formed within a cavity of a substrate and a bottom surface of the cavity using a selective deposition process, including forming a residual layer on a surface of a dielectric layer forming sidewalls of the cavity, wherein a thickness of the metal silicide layer deposited over the contact is greater than a thickness of the residual layer, removing at least a portion of the residual layer formed on the dielectric layer using an etching process that comprises exposing the metal selectively deposited layer to a metal halide containing precursor, and selectively depositing a metal fill over the metal silicide layer remaining over the contact after removing the at least the portion of the residual layer using a selective metal fill process.

Abstract: Embodiments include a method of forming a contact structure on a semiconductor substrate. The method including selectively depositing a metal silicide layer over a contact formed within a cavity of a substrate and a bottom surface of the cavity using a selective deposition process, including forming a residual layer on a surface of a dielectric layer forming sidewalls of the cavity, wherein a thickness of the metal silicide layer deposited over the contact is greater than a thickness of the residual layer, removing at least a portion of the residual layer formed on the dielectric layer using an etching process that comprises exposing the metal selectively deposited layer to a metal halide containing precursor, and selectively depositing a metal fill over the metal silicide layer remaining over the contact after removing the at least the portion of the residual layer using a selective metal fill process.

Abstract: A manufacturing method for a P-type laterally diffused metal oxide semiconductor device includes: forming a N-type buried layer in a substrate, forming a P-type region located on the N-type buried layer, and forming a mask layer located on the P-type region; patterning the mask layer to form at least two injection windows; performing N-type ion implantation by the at least two injection windows; forming an oxide layer; removing the mask layer; performing P-type ion implantation on the P-type region to form a P-type doped region; diffusing the P-type doped region to form a drift region and two P-type well regions, diffusing the high-voltage N-well doped region to form a high-voltage N-type well region, and diffusing the low-voltage N-well doped region to form a low-voltage N-type well region; and forming a source doped region, a drain doped region, and a gate.

Abstract: A heterojunction semiconductor device with a low on-resistance includes a metal drain electrode, a substrate, and a buffer layer. A current blocking layer is arranged in the buffer layer, a gate structure is arranged on the buffer layer, and the gate structure comprises a metal gate electrode, GaN pillars and AlGaN layers, wherein a metal source electrode is arranged above the metal gate electrode; and the current blocking layer comprises multiple levels of current blocking layers, the centers of symmetry of the layers are collinear, and annular inner openings of the current blocking layers at all levels gradually become smaller from top to bottom. The AlGaN layers and the GaN pillars are distributed in a honeycomb above the buffer layer.

Abstract: Disclosed are a laser assisted cold spray repair device and process method for aviation-grade aluminum alloy structural parts. In the present disclosure, a laser device, a high-pressure gas source, a powder feeder, a water cooling system, a reflector, an integrated spray gun, a mobile platform, an air pipe, a powder-gas mixed channel, a lower-pressure powder-gas powder feeding port, an air pressure regulating valve, a high-pressure airflow heater and a powder pipe are included. The powder spray gun and a heating laser source are connected coaxially, and a processing zone of the mobile platform is provided with a specimen to be processed. In the present disclosure, fatigue properties of repaired aviation-grade aluminum alloy specimens are restored to an original state before damage and satisfy service requirements.

Abstract: The present invention discloses an SMA wire-driven reusable release mechanism having a self-resetting function. The present invention adopts a structure of two-stage load reduction and one-stage release. First-stage load reduction: a compression rod and a hoop petal, as well as an inclined block and a shell or a sliding block, all cooperate with each other by means of inclined surfaces, which can transfer most of tension load of the compression rod to the shell, leaving only a small part of the load transmitted to a thrust bearing. Second-state load reduction: balls in the thrust bearing are coated with a molybdenum disulfide lubricating coating, which can effectively reduce friction so as to reduce a torque transmitted to a driving shaft. First-stage release: the driving shaft drives a thrust bearing to rotate by a certain angle, causing an upper ring of the thrust bearing to descend to release a certain axial clearance.

Abstract: An audio device calibration system includes an acoustic sensor, one or more processors, and a memory storing instructions that, when executed by the one or more processors, configure the processors to obtain a response curve of a device under test, identify an error curve, and calibrate the audio device based on a compensation curve that corresponds to the error curve to perform automatic quality control and calibration for audio devices.

Abstract: A headphone, having a sleep mode and a full-power operation mode, includes a sensor set to detect a state of a wearer in a sleep state or an awake state, Active Noise Cancellation (ANC) earphones, and a controller coupled to the sensor set and the earphones, which can control the headphone to switch between the sleep and the full-power operation modes based on the detected state of the wearer. Once the controller determines the wearer falling into the sleep state, the controller will switch the headphone from the full-power operation mode to the sleep mode, turn off the earphones, and increase the wearer state detection interval used while the headphone being in the sleep mode. This may reduce power consumption of the headphone and help improve the sleep quality of the wearer.

Abstract: Methods, systems, and computer programs are presented for parking management and navigation. One method includes operations for determining an availability of a parking space having a parking space ID, obtaining a radio-frequency ID associated with a vehicle occupying the parking space, and communicating the parking space ID and the radio-frequency ID to a storage device via a self-organized network formed by multiple parking space terminals. Further, the method includes operations for providing navigation to a vacant parking space and providing navigation to a parked vehicle.