1191results about How to "Suppress fluctuations" patented technology

The invention provides a semiconductor device capable of suppressing a short channel effect and fluctuation in a threshold. The semiconductor device includes: a plurality of first transistors formed in a first region in a semiconductor layer in a multilayer substrate having, on a semiconductor substrate, an insulating layer and the semiconductor layer in order from the semiconductor substrate; a plurality of second transistors formed in a second region in the semiconductor layer; a first impurity layer formed in a region opposed to the first region in the semiconductor substrate; a second impurity layer formed in a region opposed to the second region in the semiconductor substrate; and a first isolation part that isolates the first and second regions from each other and electrically isolates the first and second impurity layers from each other to a degree that at least current flowing between the first and second impurity layers is interrupted.

A light source device capable of suppressing generation of color unevenness, and a display device using the same are provided. The light source device 1 is provided with a plurality of excitation light sources 11 which are arranged at prescribed intervals D on a substrate 10 and emit blue light, and a phosphor layer 12 which converts part of the blue light emitted from the excitation light sources into red light and green light and arranged at a distance from the excitation light sources 11 to oppose the substrate 10. Fluctuation of intensity of each color light due to nonuniform application of the phosphor layer is difficult to occur as compared with a configuration in the past where the phosphor layer is formed adjacent to each excitation light source.

The present invention provides the laser irradiation apparatus that has a galvanometer mirror and an f-theta lens optical system, can offset the change of the energy due to the transmittance change of the f-theta lens, and can scan a laser beam while the change of the energy on a substrate is suppressed. Further, the laser beam energy that is incident on the lens is controlled in advance by combining the optical system changing the branching ratio of polarization of the laser beam and the optical system having dependence on direction of polarization of the laser beam and changed continuously according to the transmittance of the lens on which the laser beam is incident. The laser energy is controlled to offset the transmittance of the lens, and thereby energy fluctuation of the laser beam irradiation of a substrate can be prevented.

The present invention provides a method for controlling the shrinkage of formed ceramic bodies, by which it is possible to suppress fluctuation of the shrinkage of formed ceramic bodies and to cause the shrinkage to approximate the target rate. The method comprises controlling the shrinkage of formed ceramic bodies in manufacturing ceramic products by a predetermined manufacturing process from ceramic powder ground by a dry-type ball mill. Such control can be achieved by determining a correlation between the change in the amount of the ground ceramic powder taken out from the dry-type ball mill with elapse time and the shrinkage during firing of the formed ceramic body, and thereafter adjusting the manufacturing conditions based on the previously-determined conditions for the above-mentioned manufacturing process and the correlation with respect to the shrinkage obtained.

The present invention provides a liquid crystal display device capable of shortening the time required for stabilizing the brightness and the chromaticity to the temperature change. The input of an LED driver is connected to the output of a PWM controller, so that the electric power supplied to the respective LED groups of red, green and blue are controlled with a PWM method. A feedback control means for controlling the PWM controller includes a brightness setting means, a color setting means, a multiplication means for receiving the outputs from the brightness setting means and the color setting means, a comparison means fed with the output of the multiplication means at one of the inputs thereof, a light sensor temperature compensation means for compensating for fluctuations of the output of the light detection means due to temperature changes, a liquid crystal display panel temperature compensation means for compensating for fluctuations of the spectral transmittance of the liquid crystal display panel due to temperature changes, an addition means for summing the result of detection by the light detection means and the output of the light sensor temperature compensation means, and a multiplication means for multiplying the output of the addition means by the output of the liquid crystal display panel temperature compensation means.

The invention discloses an integrated control method of cold-rolling strip steel flatness and lateral thickness difference, comprising: moderately and mainly controlling the shape of the strip steel section on the upstream rack of a cold-rolling mill, and mainly controlling strip steel flatness on the downstream rack; based on a profiler configured on a No.1 rack inlet of the cold-rolling mill, actually measuring and hot rolling incoming material section shape and flatness and rolling technological parameter measured values of each rack, wherein the rolling technological parameter measured values comprise rolling force and a plate shape regulating mechanism measured value; actually measuring the cold-rolling strip steel flatness on the basis of a shape meter configured on the cold-rollingmill outlet; performing feed-forward control to the shape of the strip steel section by taking the upstream rack, in particular the No. 1 rack as a key point; and performing feedback control to the strip steel flatness by taking the downstream rack, in particular an end rack as a key point to realize integrated control to the cold-rolling strip steel flatness and lateral thickness difference. Theinvention performs integrated coordination control by the strip steel flatness and section shape and reduces cold-rolling strip steel lateral thickness difference on the basis of further improving cold-rolling strip steel flatness quality.

A pumping system for use in medical applications where liquids must be infused and aspirated from a mammalian patient, and whose economics are such that it is cost effective to simply dispose of it after a single use. The system features positive displacement pump(s) such as reciprocating pump(s) containing a damping mechanism to dampen out the peaks and valleys in the fluid pressure that is pumped, which is important for preventing cavitation. The system furthermore features a shut-off valve on the extraction side so that certain injected fluids such as contrast medium, are not immediately pumped out of the patient. In a preferred embodiment, the system also features means for independently controlling the fluid pressure/volume on the infusion and extraction sides, self-priming capability, a continuous fluid path, and visual air bubble detection, with viewports located at important points in the fluid path, such as at pumps and valves.

A head tracking system (400) is proposed in the present invention that determines a rotation angle (300) of a head (100b) of a user (100) with respect to a reference direction (310), which is dependent on a movement of a user (100). Here the movement of a user should be understood as an act or process of moving including e.g. changes of place, position, or posture, such as e.g. lying down or sitting in a relaxation chair. The head tracking system according to the invention comprises a sensing device (410) for measuring a head movement to provide a measure (401) representing the head movement, and a processing circuit (420) for deriving the rotation angle of the head of the user with respect to the reference direction from the measure. The reference direction (310) used in the processing circuit (420) is dependent on the movement of the user. The advantage of making the reference direction (310) dependent on a movement of a user is that determining the rotation angle (300) of the head (100b) is independent of the environment, i.e. not fixed to environment. Hence whenever the user (100) is e.g. on the move and his body parts undergo movement the reference direction is adapted to this movement.

There is a demand of a solid-state imaging device capable of being driven at a high speed and in which the shading of sensitivity and illuminance defect can be prevented from being caused. A solid-state imaging device (20) comprises a light-receiving sensor section disposed on the surface layer portion of a substrate (21) for performing a photoelectric conversion, a charge transfer section for transferring a signal charge read out from the light-receiving sensor section, a transfer electrode (27) (28) made of polysilicon formed on a substrate (21) at a position approximately above the charge transfer section through an insulating film (26), and an interconnection made of polysilicon and interconnected to the transfer electrode (27) (28). At least one of the polysilicon transfer electrode (27)(28) and the interconnection is formed on a polysilicon layer (27a) (28a) by selectively depositing a high-melting point metal having a resistance value lower than that of polysilicon. Also, there is provided a solid-state imaging device in which a fluctuation of a work function of the transfer electrode can be avoided and a manufacturing method thereof. The solid-state imaging device (10) comprises a buffer layer (1) containing a metal silicide layer (16) is formed between the transfer electrodes (3), (4) and a shunt interconnection layer (7) formed of a metal layer.

A heating medium supply system is provided which is capable of sufficiently suppressing a temperature fluctuation of a heating medium, by the time when a heat exchanging device recovers heat of the heating medium, by leveling the temperature fluctuation fluctuating inevitably with time. The heating medium supply system includes: a heat collecting unit configured to heat a liquid heating medium by sunlight; a heat exchanging device configured to heat water supplied thereto by means of the heating medium supplied thereto from the heat collecting unit; heating medium supply piping for supplying the heating medium from the heat collecting unit to the heat exchanging device; and a heating medium heater for heating the heating medium and a temperature measuring device configured to measure a temperature of the heating medium, which are provided on the heating medium supply piping.

A semiconductor chip and a semiconductor device mounting the semiconductor chip capable of increasing a capacitance of a capacitor without reducing the number of signal bumps or power bumps of a package and the number of C4 solder balls of the semiconductor chip, and achieving a stable power supply with suppressing fluctuations of power at a resonance frequency without a limitation in a position to mount a capacitor for lowering noise of a signal transceiving interface block. In the semiconductor device, a via hole is provided to the semiconductor chip, a power-supply electrode connected to the via hole is provided to a back surface of the semiconductor chip, and a capacitor is mounted to the electrode on the back surface. And, a high-resistance material is used for a material of a power-supply via hole inside the semiconductor chip, thereby increasing the resistance and lowering the Q factor.

In an image forming apparatus, an area applied with a lubricant, i.e., an area of a lubricant layer having a uniform thickness, is obtained by spreading the lubricant by a lubricant smoothing blade. The area applied with a lubricant covers an area cleaned by a cleaning blade, i.e., a contact portion of the cleaning blade with a photoconductor.

The invention discloses a model prediction based cut tobacco dryer outlet moisture control method. Aiming at characteristics of complicated state changes of a cut tobacco dryer during working and diversity of production process modes, an intelligent integrated optimizing control system for the cut tobacco dryer based on an intelligent prediction model and an artificial intelligent operating mode is constructed so as to achieve comprehensive optimization and automation during cut tobacco drying. Aiming at different stages and different production process modes in production, a model capable of describing dynamic process characteristics depending on feed quantity and feed moisture is constructed. On the basis of the model, an on-line optimizing control algorithm which is capable of simultaneously or selectively adjusting multiple process variables, adapting to changes of the feed quantity and the feed moisture and overcoming mutual interference among the variables and influences of various uncertainties during cut tobacco drying and has self-adaptive and self-adjustment functions is designed, and strict requirements on outlet cut tobacco moisture in different working conditions can be met.

In the manufacture of a semiconductor device having a high-performance and high-reliability, a silicon nitride film 17 for self alignment, which film is formed to cover the gate electrode of a MISFET, is formed at a substrate temperature of 400° C. or greater by plasma CVD using a raw material gas including monosilane and nitrogen. A silicon nitride film 44 constituting a passivation film is formed at a substrate temperature of about 350° C. by plasma CVD using a raw material gas including monosilane, ammonia and nitrogen. The hydrogen content contained in the silicon nitride film 17 is smaller than that contained in the silicon nitride film 44, making it possible to suppress hydrogen release from the silicon nitride film 17.

A novel control device for a vehicle power steering apparatus or system is improved for providing preferable steering convergnecy even under the execution of VSC, while ensuring the steering smoothness under normal running conditions. In the control device, the target value of total modification torque to be added to steering torque through an power steering apparatus, is calculated based upon steering assist torque, calculated based upon at least steering torque; steering converging torque, based upon a steering velocity; and behavioral deterioration-suppressing torque for suppressing unwanted steering motions which would cause further deterioration of a vehicle behavior under oversteered or understeered conditions. In this calculation, when a predetermined condition is satisfied, the degree of contribution of the target value of the behavioral deterioration-suppressing torque to the target value of the total modification torque is rendered higher than the degree of contribution of the target value of the steering converging torque to the target value of the total modification torque.

The invention discloses a method for outputting active power by using a smoothing permanent-magnet direct-driving wind power generating system of a direct-current-side flywheel energy storage unit. The method comprises the following steps of: controlling a motor-side converter; controlling a grid-side converter; and controlling an energy-storage-unit-side converter. By cooperated control of the motor-side converter, the grid-side converter and the energy-storage-unit-side converter, a wind power generator set can generate relatively-smoothed active output in the situation of change of a wind speed, and operating requirements of frequency modulation and voltage regulation of the system are met. The method has the advantages that: 1, based on the requirement of power smoothing control, maximum wind energy tracking control is realized; and 2, the network-side active power is smoothed, the quality of electric energy is improved, and the grid-connected operating characteristic of the wind power generating system is improved.