摘要:
High-voltage MOS transistors with a floated drain-side auxiliary gate are provided. The high-voltage MOS transistors include a source region and a drain region provided in a semiconductor substrate. A main gate electrode is disposed over the semiconductor substrate between the drain region and the source region. A lower drain-side auxiliary gate and an upper drain-side auxiliary gate are sequentially stacked over the semiconductor substrate between the main gate electrode and the drain region. The lower drain-side auxiliary gate is electrically insulated from the semiconductor substrate, the main gate electrode and the upper drain-side auxiliary gate. Methods of fabricating the high-voltage MOS transistors are also provided.
摘要:
High-voltage MOS transistors with a floated drain-side auxiliary gate are provided. The high-voltage MOS transistors include a source region and a drain region provided in a semiconductor substrate. A main gate electrode is disposed over the semiconductor substrate between the drain region and the source region. A lower drain-side auxiliary gate and an upper drain-side auxiliary gate are sequentially stacked over the semiconductor substrate between the main gate electrode and the drain region. The lower drain-side auxiliary gate is electrically insulated from the semiconductor substrate, the main gate electrode and the upper drain-side auxiliary gate. Methods of fabricating the high-voltage MOS transistors are also provided.
摘要:
A nonvolatile memory device includes a semiconductor substrate, a device isolation layer, a tunnel insulation layer, a floating gate, a buried floating gate, and a control gate. A trench is in the substrate that defines an active region of the substrate adjacent to the trench. A device isolation layer is on the substrate along the trench. A tunnel insulation layer is on the active region of the substrate. A floating gate is on the tunnel insulation layer opposite to the active region of the substrate. A buried floating gate is on the device isolation layer in the trench. An intergate dielectric layer is on and extends across the floating gate and the buried floating gate. A control gate is on the intergate dielectric layer and extends across the floating gate and the buried floating gate.
摘要:
A nonvolatile memory device includes a semiconductor substrate, a device isolation layer, a tunnel insulation layer, a floating gate, a buried floating gate, and a control gate. A trench is in the substrate that defines an active region of the substrate adjacent to the trench. A device isolation layer is on the substrate along the trench. A tunnel insulation layer is on the active region of the substrate. A floating gate is on the tunnel insulation layer opposite to the active region of the substrate. A buried floating gate is on the device isolation layer in the trench. An intergate dielectric layer is on and extends across the floating gate and the buried floating gate. A control gate is on the intergate dielectric layer and extends across the floating gate and the buried floating gate.
摘要:
Methods of forming an electronic device may include forming a gate electrode on a semiconductor substrate, and forming first and second impurity doped regions of the semiconductor substrate on opposite sides of the gate electrode. An insulating layer may be formed on the semiconductor substrate including the first and second impurity doped regions, and first and second holes may be formed in the insulating layer, with the first and second holes respectively exposing portions of the first and second impurity doped regions. In addition, first and second epitaxial semiconductor layers may be formed in the respective first and second holes on the exposed portions of the first and second impurity doped regions of the semiconductor substrate. Related devices are also discussed.
摘要:
Methods of forming an electronic device may include forming a gate electrode on a semiconductor substrate, and forming first and second impurity doped regions of the semiconductor substrate on opposite sides of the gate electrode. An insulating layer may be formed on the semiconductor substrate including the first and second impurity doped regions, and first and second holes may be formed in the insulating layer, with the first and second holes respectively exposing portions of the first and second impurity doped regions. In addition, first and second epitaxial semiconductor layers may be formed in the respective first and second holes on the exposed portions of the first and second impurity doped regions of the semiconductor substrate. Related devices are also discussed.
摘要:
Methods of forming an electronic device may include forming a gate electrode on a semiconductor substrate, and forming first and second impurity doped regions of the semiconductor substrate on opposite sides of the gate electrode. An insulating layer may be formed on the semiconductor substrate including the first and second impurity doped regions, and first and second holes may be formed in the insulating layer, with the first and second holes respectively exposing portions of the first and second impurity doped regions. In addition, first and second epitaxial semiconductor layers may be formed in the respective first and second holes on the exposed portions of the first and second impurity doped regions of the semiconductor substrate. Related devices are also discussed.
摘要:
Provided is a channel estimation apparatus and method. In the channel estimation apparatus, a channel estimator performs channel estimation onto a received symbol and output a channel estimation result. The channel estimation result is stored in an estimation buffer along with a channel estimation result compensated in a preamble phase compensator. The preamble phase compensator receives a channel estimation result for pilot subcarriers of a data symbol and a preamble channel estimation result from the estimation buffer, acquires a phase rotation value between them, and compensates the preamble channel estimation result with the phase rotation value. When FCH and DL-MAP are demodulated, pilot subcarriers in the Nth PUSC symbol have been used to estimate the channel of the Nth PUSC symbol.
摘要:
A method and apparatus for processing time windowing to transmit a signal in a Broadband Wireless Access (BWA) communication system based on Orthogonal Frequency Division Multiple Access (OFDMA). A signal of a first interval included in a previous symbol prior to a current symbol is stored as a signal of a previous symbol interval. The current symbol includes a guard interval and an effective symbol interval subsequent to the guard interval. The current symbol is windowed by overlapping the stored signal of the first interval with a signal of a second interval included in the current symbol subsequent to the previous symbol. A windowed signal is transmitted.