Abstract: Aspects of this disclosure relate to bulk acoustic wave resonators. A bulk acoustic wave resonator includes a patterned mass loading layer that affects a resonant frequency of the bulk acoustic wave resonator. The patterned mass loading layer can have a duty factor in a range from 0.2 to 0.8 in a main acoustically active region of the bulk acoustic wave resonator. Related filters, acoustic wave dies, radio frequency modules, wireless communications devices, and methods are disclosed.

Abstract: An embodiment structure for mounting hydrogen storage tanks for a vehicle includes a chassis frame including a first frame and a second frame spaced apart from each other and a cutting area, and a hydrogen storage tank assembly inserted into the cutting area in a height direction of the chassis frame and configured to support at least one hydrogen storage tank, wherein the hydrogen storage tank assembly includes a first member and a second member each being fastened to the chassis frame.

Abstract: A piezoelectric microelectromechanical system microphone comprises a support substrate, a piezoelectric element configured to deform and generate an electrical potential responsive to impingement of sound waves on the piezoelectric element, the piezoelectric element attached to the support substrate about a perimeter of the piezoelectric element, a sensing electrode disposed on the piezoelectric element and configured to sense the electrical potential, and corrugations defined in the piezoelectric element about the perimeter of the piezoelectric element to release residual stress and improve sensitivity of the piezoelectric microelectromechanical system microphone.

Abstract: A display device comprises a substrate including a display region including a plurality of sub-pixels and a pad region outside the display region; a display element disposed in each of the plurality of sub-pixels; a low potential electrode formed in the pad region to apply a low potential voltage to the display element; a light absorption layer disposed on the low potential electrode in the pad region; and an encapsulation layer formed in the display region and the pad region.

Abstract: A method of electroplating metal into features of a partially fabricated electronic device on a substrate having high open area portions is provided. The method includes initiating a bulk electrofill phase with a pulse at a high level of current; reducing the current to a baseline current level; and optionally increasing the current in one or more steps until electroplating is complete.

Abstract: The present invention relates to a method of preparing a polymer, which includes: adding a first reaction solution including an aqueous solvent and a monomer mixture including an alkyl-substituted aromatic vinyl-based monomer, an alkyl-unsubstituted aromatic vinyl-based monomer, and a vinyl cyanide-based monomer to a reactor and initiating polymerization; and performing polymerization by continuously adding an alkyl-substituted aromatic vinyl-based monomer to the reactor, wherein the first reaction solution satisfies Expression 1 (see the description of the invention).

Abstract: The present invention relates to a driver seat airbag device for a vehicle and a method for manufacturing same, the driver seat airbag device comprising: a driver seat airbag mounted in a folded state inside a steering wheel; and an inflator connected to the driver seat airbag to supply gas to allow the driver seat airbag to expand between the steering wheel and a driver at the time of a vehicle collision, wherein: the driver seat airbag has a plurality of tether members and a diffuser installed thereat, the tether members restricting an expansion thickness of the driver seat airbag, the diffuser controlling a supply direction for a gas supplied to the driver seat airbag, the tether members and the diffuser being installed between a front panel facing the front side of the vehicle and a rear panel opposite to the front panel and facing the driver; and the diffuser is installed between the plurality of tether members, and thus the diffuser and the tether members are integrated to simplify an installation struc

Abstract: A piezoelectric microelectromechanical systems diaphragm microphone can be mounted on a printed circuit board. The microphone can include a substrate with an opening between a bottom end of the substrate and a top end of the substrate. The microphone can have two or more piezoelectric film layers disposed over the top end of the substrate and defining a diaphragm structure. Each of the two or more piezoelectric film layers can have a predefined residual stress that substantially cancel each other out so that the diaphragm structure is substantially flat with substantially zero residual stress. The microphone can include one or more electrodes disposed over the diaphragm structure. The diaphragm structure is configured to deflect when the diaphragm is subjected to sound pressure via the opening in the substrate.

Abstract: A bulk acoustic wave resonator device comprises a piezoelectric material layer, a first metal layer having a lower surface disposed on the upper surface of the piezoelectric material layer, a second metal layer having an upper surface disposed on the lower surface of the piezoelectric material layer, and an oxide raised frame disposed between the lower surface of the first metal layer and the upper surface of the second metal layer and surrounding a central active region of the bulk acoustic wave resonator device, the central active region having a first side and a second side, the oxide raised frame having a width on the first side of the central active region that is different from the width of the oxide raised frame on the second side of the central active region to improve an operating parameter of the bulk acoustic wave resonator.

Abstract: Apparatuses, systems, and techniques are presented to perform monocular view synthesis of a dynamic scene. Single and multi-view depth information can be determined for a collection of images of a dynamic scene, and a blender network can be used to combine image features for foreground, background, and missing image regions using fused depth maps inferred form the single and multi-view depth information.

Abstract: A memory module includes a memory device configured to receive a first refresh command from a host, and perform a refresh operation in response to the first refresh command during a refresh time, and a computing unit configured to detect the first refresh command provided from the host to the memory device, and write a first error pattern at a first address of the memory device during the refresh time.

Abstract: Provided herein may be a storage device configured to check a status of a memory device based on data read without output of a status check command, and determine a subsequent command to be generated. The storage device may include a memory device and a memory controller configured to control the memory device. The memory device may include a read data generator configured to generate new read data including both read data corresponding to a read command received from the memory controller and information indicating a status of the memory device. The memory controller may include: a status information determiner configured to determine the status of the memory device based on the new read data received from the read data generator and generate status information and a command generator configured to generate a command to be output to the memory device based on the status information.

Abstract: A bulk acoustic wave resonator comprises a piezoelectric material layer, a first metal layer disposed on the upper surface of the piezoelectric material layer, a second metal layer disposed on the lower surface of the piezoelectric material layer, and a laterally distributed raised frame including a first raised frame disposed on the upper surface of the first metal layer and having an inner raised frame section with a tapered portion and a non-tapered portion and an outer raised frame section, and a second raised frame disposed beneath the first metal layer and the outer raised frame section, but not beneath the inner raised frame section, the inner raised frame section being laterally disposed from a central active region of the bulk acoustic wave resonator by a first distance, the outer raised frame section being laterally disposed from the central active region by a second distance greater than the first distance.

Abstract: Embodiments of this disclosure relate to bulk acoustic wave resonators on a substrate. The bulk acoustic wave resonators include a first bulk acoustic wave resonator, a second bulk acoustic wave resonator, a conductor electrically connecting the first bulk acoustic wave resonator to the second bulk acoustic wave resonator, and an air gap positioned between the conductor and a surface of the substrate.

Abstract: A display apparatus includes a display panel, an afterimage compensator and a data driver. The display panel displays an image. The afterimage compensator writes first stress data of input image data corresponding to a first area to a first memory area in a first block size and second stress data of the input image data corresponding to a second area to a second memory area in a second block size different from the first block size and compensates a grayscale value of the input image data based on the first stress data and the second stress data. The data driver generates a data voltage based on a compensated grayscale value and outputs the data voltage to the display panel.

Abstract: The present invention relates to a composition and health functional food for preventing and treating a respiratory inflammation disease using a mixed herbal mixture. Through various experiments, for example, determination of the cell number of BAL (bronchoalveolar lavage) (Experimental Example 1); Determination of CD11b+/Gr-1+ ratio in leukocyte within BAL fluid (Experimental Example 2); Determination of expressed RNA level of inflammatory cytokines in lung tissue (Experimental Example 3); Determination of expressed RNA level of inflammatory cytokines in BALF (Experimental Example 4); Lung histology (Experimental Example 5); Brief Clinical test (Experimental Example 7) etc, it has been verified that the inventive combined extract showed more potent inhibiting effect on respiratory inflammation disease than each herb extract.

Abstract: Provided is a vehicle sub-frame including a front cross member, a rear cross member, and left and right side members mounted to connect the front cross member and the rear cross member to each other. Each of the left and right side members has a protrusion that protrudes laterally at a corner portion of a rear end portion thereof, the corner portion being joined to a corner portion of the rear cross member. A weld joint is formed by welding to the rear cross member along a laterally extending portion of a trim line portion of the protrusion, in which the trim line portion of the protrusion is the perimeter of the protrusion.

Abstract: A laser compression bonding device and method for a semiconductor chip are proposed. The device includes a conveyor unit that transports a semiconductor chip and a substrate, and a bonding head that includes a bonding tool for applying a pressure to the chip and substrate, a laser beam generator for emitting a laser beam, a thermal imaging camera for measuring temperatures of the surfaces of semiconductor chip and substrate, and a compression unit for controlling a pressure applied by the bonding tool and a position thereof, wherein the compression unit includes a mount on which the bonding tool is detachably mounted, and a servo motor and a load cell that apply a pressure to the mount or control a position thereof. The servo motor is controlled with two values for pressure application and positioning.

Abstract: An acoustic wave component is disclosed. The acoustic wave component can include a bulk acoustic wave resonator and a surface acoustic wave device. The bulk acoustic wave resonator can include a first portion of a ceramic substrate, a first piezoelectric layer positioned on the ceramic substrate, and electrodes positioned on opposing sides of the first piezoelectric layer. The surface acoustic wave device can include a second portion of the ceramic substrate, a second piezoelectric layer positioned on the ceramic substrate, and an interdigital transducer electrode on the second piezoelectric layer.

Abstract: A ladder filter comprises series arm bulk acoustic wave resonators electrically connected in series between an input port and an output port and shunt bulk acoustic wave resonators electrically connected between adjacent ones of the series arm bulk acoustic wave resonators and ground, each of the arm bulk acoustic resonators including a central active region and a raised frame region outside of the central active region, each of the series arm bulk acoustic resonators including a piezoelectric film, at least one of the series arm bulk acoustic wave resonators including a layer of oxide disposed directly on the piezoelectric film in the raised frame region, and a metal layer disposed directly on the piezoelectric film in the central active region and on the layer of oxide in the raised frame region, the metal layer having a thickness in the raised frame region no greater than in the central active region.