Abstract:
A semiconductor memory device having a mount test circuit and a mount test method thereof are provided. The test circuit for use in a semiconductor memory device including a plurality of memory blocks may include a comparison unit for comparing test data of at least two memory blocks selected from the plurality of memory blocks, deciding whether or not the test data of the selected memory blocks are identical, and outputting a pass signal or fail signal as a flag signal; and an output selection unit for selecting any one of the selected memory blocks as an output memory block, and changing the output memory block whenever the fail signal is generated from the comparison unit, thus forming it as a data output path, which may lessen error occurrence.
Abstract:
Disclosed are a light emitting device and a method of fabricating the same. The light emitting device comprises a substrate. A plurality of light emitting cells are disposed on top of the substrate to be spaced apart from one another. Each of the light emitting cells comprises a first upper semiconductor layer, an active layer, and a second lower semiconductor layer. Reflective metal layers are positioned between the substrate and the light emitting cells. The reflective metal layers are prevented from being exposed to the outside.
Abstract:
A gate pattern is disclosed that includes a semiconductor substrate, a lower conductive pattern, an upper conductive pattern, and a sidewall conductive patter. The lower conductive pattern is on the substrate. The insulating pattern is on the lower conductive pattern. The upper conductive pattern is on the insulating pattern opposite to the lower conductive pattern. The sidewall conductive pattern is on at least a portion of sidewalls of the upper conductive pattern and the lower conductive pattern. The sidewall conductive pattern electrically connects the upper conductive pattern and the lower conductive pattern. An upper edge portion of the lower conductive pattern may be recessed relative to a lower edge portion of the lower conductive pattern to define a ledge thereon. The sidewall conductive pattern may be directly on the ledge and sidewall of the recessed upper edge portion of the lower conductive pattern.
Abstract:
A method and apparatus are provided for transmitting data more efficiently between stations in a power line communication (PLC) network while preventing a hidden node problem. The method of transmitting data includes: detecting a hidden node in a network; and transmitting at least one of a request to send (RTS) command and a clear to send command (CTS) to the network before transmitting the data, if a hidden node is detected and a transmitting station a data packet having a size which is larger than a predetermined size. Using the method, interference of data transmissions and a low data throughput caused by the hidden node problem should be prevented.
Abstract:
Each memory chip of a memory module tests a total of N data bits from X memory blocks for efficient testing and outputs N/X data bits from one of the memory blocks. A memory module includes a plurality of memory chips and a plurality of comparison units. Each comparison unit is disposed within a respective memory chip for testing a plurality of data bits from a plurality of memory blocks. In addition, each comparison unit outputs data bits from one of the memory blocks within the respective memory chip.
Abstract:
A gate pattern is disclosed that includes a semiconductor substrate, a lower conductive pattern, an upper conductive pattern, and a sidewall conductive pattern. The lower conductive pattern is on the substrate. The insulating pattern is on the lower conductive pattern. The upper conductive pattern is on the insulating pattern opposite to the lower conductive pattern. The sidewall conductive pattern is on at least a portion of sidewalls of the upper conductive pattern and the lower conductive pattern. The sidewall conductive pattern electrically connects the upper conductive pattern and the lower conductive pattern. An upper edge portion of the lower conductive pattern may be recessed relative to a lower edge portion of the lower conductive pattern to define a ledge thereon. The sidewall conductive pattern may be directly on the ledge and sidewall of the recessed upper edge portion of the lower conductive pattern.
Abstract:
A NAND type non-volatile memory device and a method for forming the same. Well bias lines are disposed substantially parallel to other wiring lines at equal intervals. Active regions that are electrically connected to the well bias line are disposed substantially parallel to other active regions at the same equal intervals. As a result, continuity and repeatability in patterns may be maintained and pattern defects may be minimized or prevented.
Abstract:
A transmitter having a vertical BJT, capable of reducing power consumption, carrier leakage of a local oscillator and an error vector magnitude (EVM), is disclosed. In the transmitter, vertical BJTs implemented by a standard triplex well CMOS process are used in a frequency up-mixer and a baseband analog circuit including a DAC, an LPF, a VGA and a PGA, thereby improving the overall performance of the transmitter.
Abstract:
Disclosed are an insulated electric wire with partial discharge resistance and a composition for manufacturing the same. The insulated electric wire with partial discharge resistance according to the present invention includes an insulating base resin constituting a basic material of an insulated electric wire; an inorganic insulator included at a content of 5 to 40 parts by weight on the basis of 100 parts by weight of the insulating base resin; and a rubbery modifier included at a content of 0.1 to 30 parts by weight on the basis of 100 parts by weight of the insulating base resin to improve flexibility of an insulated electric wire. The insulated electric wire with partial discharge resistance of the present invention may be useful to prevent occurrence of cracks caused by winding of an insulated electric wire since the insulated electric wire has a sufficient partial discharge resistance and also enhances sufficient physical properties such as flexibility, pliability, bendability, elongation, etc. to maintain an electrically insulating property intactly by dispersing a stress, applied from an external force, by means of a rubber component attached to an end thereof.
Abstract:
A wireless network device and a communication method using the wireless network device are provided to simplify an association process of the device moving over different wireless networks and to enhance mobility of the device. The wireless network device includes an allocater allocating a device identifier (ID) to a predetermined device, an information generator generating information on the allocated device ID, and a first controller generating a packet containing the generated device ID and transmitting the generated packet to another wireless network.