摘要:
A DRAM includes a sense amplifier which is activated when first and second nodes are set respectively to L and H levels to amplify a potential difference between paired bit lines. The DRAM further includes a write column select gate which is activated when the first node is set to L level to write a data signal on a pair of write data lines into a corresponding sense amplifier when a corresponding write column select line is set to H level. In this way, the data signal can be written into the sense amplifier simultaneously with sensing and amplification of memory cell data, which can enhance the random access rate.
摘要:
In a memory circuit, a transistor formed in the same process as that of a logic transistor is used for peripheral circuitry except for a region to be supplied with high voltage. Thus, the manufacturing process can be simplified and a logic-merged memory operating at a high speed is provided.
摘要:
This DRAM includes a driver circuit which is provided to be common to a plurality of columns and which lowers level of one of selected first and second bit lines to “L” level in accordance with potentials of first and second write data lines. Therefore, as compared with a conventional DRAM in which a driver circuit is provided for each column, the number of transistors is decreased and a layout area is reduced.
摘要:
A DRAM includes two main column selecting lines provided at each sense amplifier zone, eight sub column selecting lines provided at each sense amplifier zone to correspond to each memory block, two sub decoder column selecting lines provided at each sub decoder zone, a sub column decoder provided at each crossing portion of the sense amplifier zone and the sub decoder zone to select one sub column selecting line from corresponding eight sub column selecting lines in accordance with a signal from the two main column selecting lines and the two sub decoder column selecting lines. The area of the sense amplifier zone can be reduced compared to that of a conventional DRAM in which all signal lines for column selection were provided at a sense amplifier zone.
摘要:
Disclosed is a method of fabricating a fine pattern by using selective surface reaction such as silylation reaction. A resist for dry development is applied on a semiconductor wafer having an alignment mark formed at a predetermined reference position and comprising a stepped portion. By selectively irradiating the resist by ultraviolet light or electron beams in accordance with a predetermined pattern with reference to the position of the alignment mark, the pattern is transferred onto the resist. A silylated layer of high etching-resistant is selectively formed in a surface of the resist by causing silylation reaction at least in a region of the alignment mark and either a region irradiated by energy beams or a non-irradiated region. This is induced by irradiation of the electron beams or the ultra-violet light, and resulted from the resist heated to a predetermined temperature. Thereafter, before developing the pattern transferred onto the resist, by scanning the resist in a region including at least the alignment mark with the electron beams, the registration of the pattern with the semiconductor wafer is checked. The check of the registration is performed by detecting electrons reflected from the alignment mark and an Auger electrons emitted from the silicon atoms in the silylated layer. The resist can be removed without damaging the underlying substrate even if out-of-registration is detected.
摘要:
An image heating apparatus includes a rotatable image heater including: an electroconductive layer; a pressor, press-contacting the heater, for forming a nip in which an image on a recording material is to be heated; an urging member, provided inside the heater, for urging the heater toward the pressor; and an excitation coil for induction-heating the electroconductive layer. When the length of the heater with respect to a rotational axis direction thereof is Lb, the length of the pressor with respect to the rotational axis direction is Lr, the outside distance of bent portions of the coil at both end portions thereof with respect to the rotational axis direction is LcoilA, and the inside distance of the bent portions with respect to the rotational axis direction is LcoilB, the lengths Lb and Lr and the distance LcoilA and LcoilB satisfy the following relationship: LcoilA>Lb>Lr>LcoilB.
摘要:
Provided is a power system capable of supplying power steadily to the outside even at a low temperature. A power supply unit disposed in the power system is configured to calculate an amount of power needed to heat a fuel cell to a temperature threshold when the temperature thereof measured by an FC sensor is below the temperature threshold, set an SOC lower limit by adding the calculated amount of power to a discharge threshold of a secondary battery, and control the power supply to a first power supply portion in the range of the SOC lower limit.
摘要:
An image heating apparatus includes a rotatable image heater including: an electroconductive layer; a pressor, press-contacting the heater, for forming a nip in which an image on a recording material is to be heated; an urging member, provided inside the heater, for urging the heater toward the pressor; and an excitation coil for induction-heating the electroconductive layer. When the length of the heater with respect to a rotational axis direction thereof is Lb, the length of the pressor with respect to the rotational axis direction is Lr, the outside distance of bent portions of the coil at both end portions thereof with respect to the rotational axis direction is LcoilA, and the inside distance of the bent portions with respect to the rotational axis direction is LcoilB, the lengths Lb and Lr and the distance LcoilA and LcoilB satisfy the following relationship: LcoilA>Lb>Lr>LcoilB.
摘要:
A vehicle is described that can efficiently cool or heat a group of components, in view of appropriate operating temperature ranges of respective components configuring a fuel cell power supply system, while realizing saving of a mounting space in the vehicle and cost of the vehicle. The vehicle mounted with a fuel cell power supply system includes at least a fuel cell, and an accumulating unit includes a capacitor and a secondary battery connected to the fuel cell. A motor serves as a power source for the vehicle to which output sections of the fuel cell and the accumulating unit are connected. A PDU provided between the output sections and the motor. A component group of the power supply system, including the fuel cell, the accumulating unit, and the PDU, is cooled by a cooling medium which flows inside the vehicle, in order from one having a lowest heating generation amount.
摘要:
A vehicle suitable in consideration of each of an electric power supply amount to a motor and a mounting space of a fuel cell or the like is provided. The outputs of a fuel cell and a battery are raised in voltage by a voltage raising device, and electric power of these raised voltages is supplied to a motor. A total output voltage of the fuel cell and the battery, and their total volume can be correspondingly reduced. The total volume of a group is reduced including the fuel cell, the battery and the voltage raising device, and a mounting space of the group in the vehicle. A space of a frame on an upper side of a floor panel and a lower side of a seat in a vehicle interior space can be utilized effectively as the mounting space of the group, without enlarging the space of the frame.