摘要:
The amorphous silicon film is formed over the microcrystalline silicon film, and plasma treatment is performed on the amorphous silicon film in a mixed gas atmosphere of H2 and Ar at a pressure higher than 1000 Pa, so that etching is performed to expose the microcrystalline silicon film. In the etching, the etching rate of the amorphous silicon film and that of the microcrystalline silicon film is large.
摘要:
A semiconductor device in which light leakage due to misalignment is prevented even when a black matrix layer is not expanded to a designed value or more is provided. In a semiconductor device including a dual-gate thin film transistor in which a semiconductor layer is sandwiched between a bottom gate electrode and a top gate electrode, the top gate electrode is formed of a first black matrix layer, and the top gate electrode overlaps with the semiconductor layer.
摘要:
Inter-carrier interference caused by frequency fluctuations, amplitude fluctuations, phase fluctuations, or the like is reduced without reducing a transmission efficiency. A receiving end has a canceling filter section that alleviates the inter-carrier interference caused by the frequency fluctuations, the amplitude fluctuations, the phase fluctuations, or the like through filtering processing. A transmitting end has a precoding section that facilitates determination of demodulation data in a vector demodulation section on the receiving end through precoding processing. Or, the receiving end has a trellis decoding section that decodes the demodulation data through trellis decoding processing.
摘要:
An object is to prevent light leakage caused due to misregistration even when the width of a black matrix layer is not expanded to a designed value or larger. One embodiment of the present invention is a semiconductor device including a single-gate thin film transistor in which a first semiconductor layer is sandwiched between a bottom-gate electrode and a first black matrix layer. The first semiconductor layer and the first black matrix layer overlap with each other.
摘要:
A fourth constant-voltage power circuit directly powered from an on-vehicle battery is connected, in parallel through a serial resistor, to a second constant-voltage power circuit powered from the on-vehicle battery through an output contact of a power relay, and is connected to a drive power terminal of a microprocessor. When the output contact is closed, the microprocessor operates with an output voltage of the second constant-voltage power circuit, and an output current of the fourth constant-voltage power circuit is limited to less than or equal to a predetermined value by the serial resistor. During the operation stop at which a power switch is open, a micro standby current is supplied from the fourth constant-voltage power circuit to the microprocessor.
摘要:
A communication apparatus that is capable of enabling communication even when IPsec life time information is taken over. The communication apparatus is connected to a network via a network interface device and operates in a first power mode or a second power mode with less power consumption. A notification unit notifies the network interface device of IPsec life time information when shifting to the second power mode from the first power mode. A storage unit stores first time information showing time of shifting to the second power mode from the first power mode. An acquisition unit acquires the life time information from the network interface device when shifting to the first power mode from the second power mode. A correction unit corrects the life time information based on second time information showing time of shifting to the first power mode from the second power mode and the first time information.
摘要:
All data symbols used in data transmission of a modulated signal are precoded by switching between precoding matrices so that the precoding matrix used to precode each data symbol and the precoding matrices used to precode data symbols that are adjacent to the data symbol along the frequency axis and the time axis all differ. A modulated signal with such data symbols arranged therein is transmitted.
摘要:
All data symbols used in data transmission of a modulated signal are precoded by hopping between precoding matrices so that the precoding matrix used to precode each data symbol and the precoding matrices used to precode data symbols that are adjacent to the data symbol in the frequency domain and the time domain all differ. A modulated signal with such data symbols arranged therein is transmitted.
摘要:
A transmission scheme for transmitting a first modulated signal and a second modulated signal in the same frequency at the same time. According to the transmission scheme, a precoding weight multiplying unit multiplies a precoding weight by a baseband signal after a first mapping and a baseband signal after a second mapping and outputs the first modulated signal and the second modulated signal. In the precoding weight multiplying unit, precoding weights are regularly hopped.
摘要:
An object is to reduce off-state leakage current between a source electrode and a drain electrode. One embodiment of the present invention is a semiconductor device including a gate electrode, gate insulating films and formed to cover the gate electrode, an active layer formed over the gate insulating films and located above the gate electrode, silicon layers and formed over side surfaces of the active layer and the gate insulating films, and a source electrode and a drain electrode formed over the silicon layers. The active layer is not in contact with each of the source electrode and the drain electrode.