Abstract: The present invention relates to a flat-plate focusing ultrasonic transducer and an acoustic lens composed of an annular array piezoelectric element and methods of manufacturing and designing thereof, more particularly to a flat-plate focusing ultrasonic transducer composed of an annular array piezoelectric element, wherein the annular array piezoelectric element has a plurality of concentric regions which is concentrically arranged in a concentric circle shape with respect to a center point, the concentric region has ring shaped sound insulation regions and piezoelectric regions which are alternatively formed in a direction from the center point to a radius direction, so as to focus a sound wave near a focal point, wherein the piezoelectric regions are composed of a piezoelectric ring that is composed of a piezoelectric material and thus excites a sound wave, the concentric region is in a shape of a flat-plate of which both sides are flat and which has a constant thickness, and each radius of the plurality o

Abstract: The present invention provides a battery safety test device includes: a mechanical switch element having one end connected to either a battery positive or negative electrode and the other end connected to an electronic switching element; the electronic switching element having one end connected to the mechanical switch element and the other end connected to the other of the battery positive or negative electrode; a voltage sensor for measuring a voltage of the battery after the mechanical switch element and the electronic switching element are turned on; and a current sensor for measuring a current of the battery after the mechanical switch element and the electronic switching element are turned on.

Abstract: A method for synthesizing carbon nanotubes using a nanoparticle catalyst prepared by vaporizing a catalyst raw material using plasma and then condensing the vaporized catalyst raw material is disclosed. The production method of the present disclosure can make the synthesized carbon nanotubes have high crystallinity; and facilitate their mass synthesis.

Abstract: An apparatus for producing carbon nanotubes includes a plasma apparatus and a CVD reactor which are connected in series is disclosed, and a nanoparticle catalyst in an aerosol state prepared in the plasma apparatus is transferred into the CVD reactor to synthesize carbon nanotubes, thereby continuously synthesizing the carbon nanotubes having excellent physical properties.

Abstract: The present disclosure provides a compound of following formula and an organic light emitting device and an organic light emitting display device including the compound. The compound of the present disclosure serves as a host or a dopant in an emitting material layer.

Abstract: An optical inspection device includes: an optical inspection main body on which a target substrate is mounted; high-resolution cameras spaced from the target substrate and disposed in the optical inspection main body, where the high-resolution cameras photograph high-resolution images; and an image converter which converts the high-resolution images into a low-resolution image, where the image converter includes a gray uniformizer which adjusts grays of the high-resolution images to allow a gray deviation among the high-resolution images to be equal to or less than a deviation reference value.

Abstract: A novel compound for a light emitting device, and an organic light emitting device containing the same are disclosed.

Abstract: A novel compound for a capping layer, and an organic light emitting device containing the same are disclosed.

Abstract: A novel compound for a capping layer, and an organic light-emitting device containing the same are disclosed.

Abstract: A novel compound for a capping layer, and an organic light-emitting device containing the same are disclosed.

Abstract: An integrated circuit structure comprises one or more fins extending above a surface of a substrate over an N-type well. A gate is over and in contact with the one or more fins. A second shallow N-type doping is below the gate and above the N-type well.

Abstract: Disclosed (or Provided) are a heterocyclic compound and an organic light emitting device including the same.

Abstract: According to an embodiment, a cover glass includes a glass plate forming at least a portion of an electronic device, and a first coat layer deposited on a surface of the glass plate, the first coat layer at least partially including a network structure. The first coat layer includes silicon (Si), oxygen (O), and at least one impurity, and such that Si—O bonds are 80% or more by weight of the first coat layer. A polysilazane-applied coat is laid over one surface of the reinforced glass plate, providing an elegant haze glass cover.

Abstract: A method for inspecting a display device includes preparing a target substrate comprising sub-pixels in which light-emitting elements are disposed, dividing each of first regions of the sub-pixels into second regions, obtaining a gray value of each of the second regions, generating a random number using the gray value, calculating a representative value of each of the first regions by reflecting variables in the random number, and summing the representative values of the first regions to calculate a number of light-emitting elements of the sub-pixels.

Abstract: A method for dynamically applying a battery saving technology by a terminal is disclosed. The method comprises transmitting a first message requesting an activation of a battery saving technology dynamic service to an authentication server, receiving a second message being a response to the first message from the authentication server, transmitting and receiving data with a base station in a battery saving technology deactivated state, when response information included in the second message comprises authentication success, and at least one application included in the second message is running, and maintaining a battery saving technology activated state when the application included in the second message is not running.

Abstract: An optical inspection device includes: a barrel; a first light source unit at a first side of the barrel and configured to irradiate light of a first wavelength range through a first light path; a second light source unit at a second side of the barrel, the second side being different from the first side, and configured to irradiate light of a second wavelength range that is different from the first wavelength range through a second light path; and a camera. At least a portion of the first light path is different from the second light path.

Abstract: Embodiments of the disclosure are in the field of advanced integrated circuit structure fabrication. In an example, an integrated circuit structure includes a fin including silicon. A gate structure is over the fin, the gate structure having a center. A conductive source trench contact is over the fin, the conductive source trench contact having a center spaced apart from the center of the gate structure by a first distance. A conductive drain trench contact is over the fin, the conductive drain trench contact having a center spaced apart from the center of the gate structure by a second distance, the second distance greater than the first distance by a factor of three.

Abstract: Embodiments disclosed herein include semiconductor devices and methods of forming such devices. In an embodiment the semiconductor device comprises a first semiconductor layer, where first transistors are fabricated in the first semiconductor layer, and a back end stack over the first transistors. In an embodiment the back end stack comprises conductive traces and vias electrically coupled to the first transistors. In an embodiment, the semiconductor device further comprises a second semiconductor layer over the back end stack, where the second semiconductor layer is a different semiconductor than the first semiconductor layer. In an embodiment, second transistors are fabricated in the second semiconductor layer.

Abstract: Embodiments may relate to a semiconductor package that includes a die and a package substrate. The package substrate may include one or more cavities that go through the package substrate from a first side of the package substrate that faces the die to a second side of the package substrate opposite the first side. The semiconductor package may further include a waveguide communicatively coupled with the die. The waveguide may extend through one of the one or more cavities such that the waveguide protrudes from the second side of the package substrate. Other embodiments may be described or claimed.

Abstract: Disclosed herein are field-effect transistors with asymmetric gate stacks. An example transistor includes a channel material and an asymmetric gate stack, provided over a portion of the channel material between source and drain (S/D) regions. The gate stack is asymmetric in that a thickness of a gate dielectric of a portion of the gate stack closer to one of the S/D regions is different from that of a portion of the gate stack closer to the other S/D region, and in that a work function (WF) material of a portion of the gate stack closer to one of the S/D regions is different from a WF material of a portion of the gate stack closer to the other S/D region. Transistors as described herein exploit asymmetry in the gate stacks to improve the transistor performance in terms of high breakdown voltage, high gain, and/or high output resistance.