摘要:
A semiconductor buffer structure includes a silicon substrate, a nucleation layer formed on the silicon substrate, and a buffer layer formed on the nucleation layer. The buffer layer includes a first layer formed of a nitride semiconductor material having a uniform composition rate, a second layer formed of the same material as the nucleation layer on the first layer, and a third layer formed of the same material with the same composition ratio as the first layer on the second layer.
摘要:
According to example embodiments, a semiconductor light emitting device includes a first semiconductor layer, a pit enlarging layer on the first semiconductor layer, an active layer on the pit enlarging layer, a hole injection layer, and a second semiconductor layer on the hole injection layer. The first semiconductor layer is doped a first conductive type. An upper surface of the pit enlarging layer and side surfaces of the active layer define pits having sloped surfaces on the dislocations. The pits are reverse pyramidal spaces. The hole injection layer is on a top surface of the active layer and the sloped surfaces of the pits. The second semiconductor layer doped a second conductive type that is different than the first conductive type.
摘要:
Example embodiments are directed to light-emitting devices (LEDs) and methods of manufacturing the same. The LED includes a first semiconductor layer; a second semiconductor layer; an active layer formed between the first and second semiconductor layers; and an emission pattern layer including a plurality of layers on the first semiconductor layer, the emission pattern including an emission pattern for externally emitting light generated from the active layer.
摘要:
An information service apparatus and method in a wireless communication system are provided. A method of operating a Radio Access Station (RAS) includes receiving information regarding business offices located in a cell coverage area of the RAS from a network entity of a core service network, classifying the received business office information according to a plurality of items and storing the classified information in a Data Base (DB), allocating a Multicast Connection IDentifier (MCID) for each item, determining a transmission period for each item, obtaining a business office list of a corresponding item from the DB when a Transmit (Tx) time elapses according to the Tx period, generating an advertisement multicast burst including the obtained business office list, and multicasting the generated burst to pre-registered Mobile Stations (MSs).
摘要:
A semiconductor memory device includes a voltage generator configured to supply a program voltage, a sub-verification voltage, or a target verification voltage to memory cells selected during a program operation, page buffers configured to latch first data according to results from comparing threshold voltages of the selected memory cells with the sub-verification voltage and latch second data according to results from comparing the threshold voltages of the memory cells with the target verification voltage, a sub-pass check circuit configured to output a sub-pass signal in response to the first data outputted from the page buffers, a main pass check circuit configured to output a main pass signal in response to the second data outputted from the page buffers, and a control circuit configured to control whether the voltage generator supplies the sub-verification voltage and the target verification voltage in response to the sub-pass signal and the main pass signal.
摘要:
Example embodiments relate to a resistive random access memory (RRAM) and a method of manufacturing the RRAM. A RRAM according to example embodiments may include a lower electrode, which may be formed on a lower structure (e.g., substrate). A resistive layer may be formed on the lower electrode, wherein the resistive layer may include a transition metal dopant. An upper electrode may be formed on the resistive layer. Accordingly, the transition metal dopant may form a filament in the resistive layer that operates as a current path.
摘要:
A light source for a photonic integrated circuit may comprise a reflection coupling layer formed on a substrate in which an optical waveguide is provided, at least one side of the reflection coupling layer being optically connected to the optical waveguide; an optical mode alignment layer provided on the reflection coupling layer; and/or an upper structure provided on the optical mode alignment layer and including an active layer for generating light and a reflection layer provided on the active layer. A light source for a photonic integrated circuit may comprise a lower reflection layer; an optical waveguide optically connected to the lower reflection layer; an optical mode alignment layer on the lower reflection layer; an active layer on the optical mode alignment layer; and/or an upper reflection layer on the active layer.
摘要:
A semiconductor memory device includes a memory cell array configured to include a plurality of memory blocks, a voltage generator configured to output operating voltages for data input and output to global lines, and a row decoder configured to transfer the operating voltages to local lines of a memory block, selected from among the plurality of memory blocks, and supply a ground voltage to local lines of unselected memory blocks in response to address signals.
摘要:
A nonvolatile memory system includes a controller and a nonvolatile memory apparatus, where the controller provides the nonvolatile memory apparatus with a first feature setting command or a second feature setting command according to device information of the nonvolatile memory apparatus in a mode change of the nonvolatile memory apparatus.
摘要:
An oxide thin film transistor and a method of manufacturing the oxide TFT are provided. The oxide thin film transistor (TFT) including: a gate; a channel formed to correspond to the gate, and a capping layer having a higher work function than the channel; a gate insulator disposed between the gate and the channel; and a source and drain respectively contacting either side of the capping layer and the channel and partially on a top surface of the capping layer.