Abstract: An overlay measurement device includes a light source configured to direct an illumination to an overlay measurement target in which a first overlay key in a first layer and a second overlay key in a second layer are positioned, the second layer being stacked on an upper portion or a lower portion of the first layer, a lens assembly including an objective lens configured to condense the illumination on a measurement position of at least one point in the overlay measurement target and a lens focus actuator configured to control a distance between the objective lens and the overlay measurement target, and a detector configured to acquire a focus image at the measurement position based on a beam reflected on the measurement position.

Abstract: An overlay measurement apparatus includes: a light source unit configured to direct an illumination to an overlay measurement target in which a first filling unit formed in a first layer and a second filling unit formed in a second layer; a lens unit having an objective lens and a lens focus actuator; a detection unit acquiring a focus image at the measurement position; and a control unit aligning the sample image measured by the detection unit and a prestored setting model image, acquiring CI information of the aligned and sample image and setting model image, measuring a plurality of images by controlling the lens unit with a focus determined according to the CI information, and calculating an overlay with a difference value by comparing center points of the plurality of images.

Abstract: A window according to an exemplary embodiment of the present disclosure includes: a substrate; and a protective layer provided in one side of the substrate, wherein the protective layer includes at least one of a first compound represented as given in Chemical Formula 1 and a derivative thereof and at least one of a second compound represented as given in Chemical Formula 2 and a derivative thereof:

Abstract: A window according to an exemplary embodiment of the present disclosure includes: a substrate; and a protective layer provided in one side of the substrate, wherein the protective layer includes at least one of a first compound represented as given in Chemical Formula 1 and a derivative thereof and at least one of a second compound represented as given in Chemical Formula 2 and a derivative thereof:

Abstract: An organic compound is represented by Formula 1. where X1, X2, L, A1, A2, R1, R2, R3, R4, and Het are as defined in the specification.

Abstract: A compound, an organic light emitting diode device, and a display device, the compound being represented by the following Chemical Formula 1:

Abstract: A compound, an organic light emitting diode device, and a display device, the compound being represented by the following Chemical Formula 1:

Abstract: An organic compound is represented by Formula 1. where X1, X2, L, A1, A2, R1, R2, R3, R4, and Het are as defined in the specification.

Abstract: Disclosed is a method for starting a terminal by supporting a hard-wired start mode. The method comprises the steps of: receiving an execution command of the hard-wired start mode; reading by a CPU of the terminal a start code obtained by hardware in a hard-wired area within a modem chip and executing the read start code; copying by the CPU of the terminal a loader achieved by hardware in the hard-wired area within the modem chip into a memory area; downloading a new start code and a new loader from an exterior host by means of the copied loader and storing the downloaded start code and loader; and replacing an internal start code and a loader of a flash area with the downloaded start code and loader. In the method, when an internal start code of a terminal has been broken, or broken codes or unexpected codes have been downloaded to a start area while downloading a program using serial ports, for example, it is possible to download the start code again through entering a hard-wired start mode.

Abstract: In a mobile communication system where a signal transmitted on a radio channel is received at one or more rake receiver fingers, each of the fingers receiving a signal includes signals supposed to be received at other fingers, a method of removing the signals for the other fingers from a signal received at a finger is provided. Correlations between a signal supposed to be received at the finger and signals supposed to be received at other fingers are reduced in an input signal of the finger, and the signals supposed to be received at the other fingers with the reduced correlations are removed from the input signal of the finger.