Abstract:
A light emitting diode (LED) chip for high voltage operation and an LED package including the same are disclosed. The LED chip includes a substrate, a first array formed on the substrate and including n light emitting cells connected in series, and a second array formed on the substrate and including m (m≦n) light emitting cells connected in series. During operation of the LED chip, the first array and the second array are operated by being connected in reverse parallel to each other. Further, when a driving voltage of the first array is delined as Vd1 and a driving voltage of the second array is defined as Vd2, a difference between Vd1 and Vd2×(n/m) is not more than 2V.
Abstract:
A method of operating a near field communication (NFC) device includes receiving, by the NFC device, a first signal from an NFC reader, transmitting, by the NFC device, a response to the first signal to the NFC reader and changing selectively, by the NFC device, a radio frequency (RF) configuration parameter associated with signal transmission operation during a signal transmission interval, based on determining whether the NFC reader recognizes the response.
Abstract:
A semiconductor device includes lower and upper selection lines, a cell gate structure, a lower dummy structure and an upper dummy structure. The cell gate structure is between the lower and upper selection lines and includes cell gate electrodes stacked in a first direction. The lower dummy structure is between the lower selection line and the cell gate structure and includes a lower dummy gate line spaced from a lowermost one of the cell gate electrodes by a first distance. The upper dummy structure is between the upper selection line and the cell gate structure and includes an upper dummy gate line spaced from an uppermost one of the cell gate electrodes by a second distance. The cell gate electrodes are spaced by a third distance less than each of the first and second distances.
Abstract:
An arc discharge apparatus includes a body unit including a housing and a transmissive member fixed to the housing, the housing having a coolant inlet and a coolant outlet, and an electrode unit on the housing, the electrode unit including an anode and a cathode facing each other, wherein the anode includes a main body portion connected to the housing, an anode tip coupled to the main body portion, and a cooling line in the anode and in contact with an inner wall of the anode tip, the cooling line being connected to the coolant inlet and to the coolant outlet.
Abstract:
A method of manufacturing a semiconductor device, the method including forming a structure on a substrate, the structure including a metal pattern, at least a portion of the metal pattern being exposed; forming a preliminary buffer oxide layer to cover the structure, a metal oxide layer being formed at the exposed portion of the metal pattern; and deoxidizing the metal oxide layer so that the preliminary buffer oxide layer is transformed into a buffer oxide layer.
Abstract:
The present invention relates to a belt-shaped metal nanostructure in which a wide surface area of catalytically active material can be realized even by a relatively small amount thereof so that it shows an excellent catalytic activity, and a method for preparing same.
Abstract:
A method of operating an image sensor includes: generating a pixel signal according to intensity of incident light; and generating a digital pixel signal based on a comparison between the pixel signal and at least one reference current. Accordingly, a current output from a 1T pixel in the image sensor is sensed such that the influence of noise is reduced and a pixel signal is sensed more precisely.
Abstract:
A method and apparatus for managing user devices and contents with quick response (QR) codes. An image of a QR code displayed on a user terminal is captured; the captured image of the QR code is analyzed, and a domain registration request message is generated based on the QR code; and the domain registration request message is transmitted to a domain server, and a domain registration response message is received from the domain server.
Abstract:
A method and system for minimizing an incomplete closing phenomenon between an elevator hole and an interior section and a stack effect problem such as strong wind generated when opening an elevator door, which are inevitably generated at upper floors of high-rise office buildings, are provided. The method includes determining a degree of pressurization of the interior section in accordance with target pressure resistance and reduction in passing wind when opening the elevator door, and calculating a supply air volume required for the pressurization and an exhaust air volume from an elevator shaft based on the determined degree of the pressurization.
Abstract:
There is provided a method of manufacturing a light emitting device which includes preparing a light emitting element emitting excitation light and a substrate on which the light emitting element is disposed. A fluoride phosphor is provided to absorb excitation light emitted from the light emitting element to emit visible light, and is represented by Chemical Formula (1). The fluoride phosphor is disposed on at least one of the light emitting element and the substrate, wherein Chemical Formula (1): AxMFy:Mn4+ (wherein 2≦x≦3 and 4≦y≦7, A is at least one element selected from the group consisting of Li, Na, K, Rb, and Cs, and M is at least one element selected from the group consisting Si, Ti, Zr, Hf, Ge, and Sn).