Abstract:
The semiconductor device includes a memory cell including a first transistor including a first channel formation region, a first gate electrode, and first source and drain regions; a second transistor including a second channel formation region provided so as to overlap with at least part of either of the first source region or the first drain region, a second source electrode, a second drain electrode electrically connected to the first gate electrode, and a second gate electrode; and an insulating layer provided between the first transistor and the second transistor. In a period during which the second transistor needs in an off state, at least when a positive potential is supplied to the first source region or the first drain region, a negative potential is supplied to the second gate electrode.
Abstract:
Provided is a process for the preparation of t-butoxycarbonylamine compounds, which comprises using phosgene or a phosgene equivalent, t-butanol, and an organic base. Even when applied to a primary or secondary amine compound having low nucleophilicity, the process enables highly selective preparation of a t-butoxycarbonylamine compound at a low cost. In the process, a t-butoxycarbonylamine compound is prepared using: phosgene or a phosgene equivalent; t-butanol; an organic base; and either a primary or secondary amine compound or a primary or secondary ammonium salt.
Abstract:
A power transmission control device is used for a hybrid vehicle including an internal combustion engine and a motor (MG) as power sources, and includes a manual transmission and a friction clutch. A torque of the motor (MG torque) is generally adjusted to the smaller one (=MG torque final reference value) of an MG torque reference value determined based on an accelerator opening and an MG torque limit value determined based on a clutch return stroke. Based on satisfaction of a predetermined condition relating to a clutch pedal operation performed by a driver, the MG torque is intentionally adjusted to a value shifted from the MG torque final reference value in place of the MG torque final reference value. As a result, a driving force which is more appropriate or better meets a driver's intention can be obtained.
Abstract:
It is an object to provide a semiconductor device with a novel structure in which stored data can be held even when power is not supplied, and does not have a limitation on the number of writing operations. A semiconductor device includes a plurality of memory cells each including a transistor including a first semiconductor material, a transistor including a second semiconductor material that is different from the first semiconductor material, and a capacitor, and a potential switching circuit having a function of supplying a power supply potential to a source line in a writing period. Thus, power consumption of the semiconductor device can be sufficiently suppressed.
Abstract:
One object of the present invention is to provide a regulator circuit with an improved noise margin. In a regulator circuit including a bias circuit generating a reference voltage on the basis of the potential difference between a first power supply terminal and a second power supply terminal, and a voltage regulator outputting a potential to an output terminal on the basis of a reference potential input from the bias circuit, a bypass capacitor is provided between a power supply terminal and a node to which a gate of a transistor included in the bias circuit is connected.
Abstract:
An object is to provide a semiconductor device with a novel structure, which can hold stored data even when not powered and which has an unlimited number of write cycles. A semiconductor device is formed using a material capable of sufficiently reducing the off-state current of a transistor, such as an oxide semiconductor material that is a widegap semiconductor. The use of a semiconductor material capable of sufficiently reducing the off-state current of a transistor allows data to be held for a long time. In addition, the timing of potential change in a signal line is delayed relative to the timing of potential change in a write word line. This makes it possible to prevent a data writing error.
Abstract:
A semiconductor device includes a plurality of memory cells including a first transistor and a second transistor, a reading circuit including an amplifier circuit and a switch element, and a refresh control circuit. A first channel formation region and a second channel formation region contain different materials as their respective main components. A first gate electrode is electrically connected to one of a second source electrode and a second drain electrode. The other of the second source electrode and the second drain electrode is electrically connected to one of input terminals of the amplifier circuit. An output terminal of the amplifier circuit is connected to the other of the second source electrode and the second drain electrode through the switch element. The refresh control circuit is configured to control whether the switch element is turned on or off.
Abstract:
There are provided a nitrogen-containing heterocyclic compound such as a substituted amino-pyridine-N-oxide compound represented by formula (1), which is useful as a synthetic intermediate for an agrochemical and the like; and a method for producing the nitrogen-containing heterocyclic compound. (In formula (1), R1 and R2 each represents a hydrogen atom or an unsubstituted or substituted alkyl group; R3 represents a hydrogen atom, an unsubstituted or substituted alkylcarbonyl group or the like; R4 represents an unsubstituted or substituted alkylcarbonyl group, an unsubstituted or substituted arylcarbonyl group or the like; A represents a hydroxyl group, a thiol group or the like; m represents any one of integers of 1 to 4; k represents any one of integers of 0 to 3; and k+m≦4.)
Abstract translation:提供了可用作农药等的合成中间体的含氮杂环化合物,例如由式(1)表示的取代的氨基 - 吡啶-N-氧化物化合物; 和含氮杂环化合物的制造方法。 (式(1)中,R 1和R 2各自表示氢原子或未取代或取代的烷基; R 3表示氢原子,未取代或取代的烷基羰基等; R 4表示未取代或取代的烷基羰基,未取代的 或取代的芳基羰基等; A表示羟基,硫醇基等; m表示1〜4的整数中的任一个; k表示0〜3的整数中的任一个; k + m< 1l; 4。 )
Abstract:
A semiconductor device with a novel structure and a driving method thereof are provided. A semiconductor device includes a non-volatile memory cell including a writing transistor including an oxide semiconductor, a reading p-channel transistor including a semiconductor material different from that of the writing transistor, and a capacitor. Data is written to the memory cell by turning on the writing transistor so that a potential is supplied to a node where a source electrode of the writing transistor, one electrode of the capacitor, and a gate electrode of the reading transistor are electrically connected, and then turning off the writing transistor so that a predetermined amount of electric charge is held in the node. In a holding period, the memory cell is brought into a selected state and a source electrode and a drain electrode of the reading transistor are set to the same potential, whereby the electric charge stored in the node is held.
Abstract:
A silicon carbide substrate includes: a base substrate having a diameter of 70 mm or greater; and a plurality of SiC substrates made of single-crystal silicon carbide and arranged side by side on the base substrate when viewed in a planar view. In other words, the plurality of SiC substrates are arranged side by side on and along the main surface of the base substrate. Further, each of the SiC substrates has a main surface opposite to the base substrate and having an off angle of 20° or smaller relative to a {0001} plane.