摘要:
A semiconductor device provided with a thin-film transistor comprising a polycrystalline semiconductor thin film (2) formed on an insulating substrate (100). The semiconductor device comprises a channel region (80), a source region (91), and a drain region (92), each disposed on both sides of the channel region (80) in the semiconductor thin film (100). The channel region (90) comprises both a first conductive impurity and a second conductive impurity, the conductive type of the second conductive impurity being opposite the conductive type of the first conductive impurity, and is structured by layering a first layer in which the first conductive impurity and the second conductive impurity are canceled and a second layer in which either of the first conductive impurity or the second conductive impurity is dominant, wherein a gate electrode (4) is formed so as to face the first layer (2a) via an insulating film (3). The source region (91) and the drain region (92) have a conductive type that is opposite the conductive type that is dominant in the second layer (2b). This structure reduces OFF-current and makes it easy to control threshold voltage.
摘要:
A power supply system includes a plurality of electric products; a power generation apparatus capable of varying an amount of power generation; and a power control apparatus for controlling power supply from the power generation apparatus to the plurality of electric products. Each of the plurality of electric products is structured to be capable of outputting a first power request signal for requesting a desired amount of power. The power control apparatus receives the plurality of first power request signals respectively from the plurality of electric products, generates a second power request signal for requesting an amount of power which is determined in accordance with a total amount of power requested by the plurality of first power request signals, and outputs the second power request signal to the power generation apparatus. The power generation apparatus increases or decreases the amount of power generation so as to match the amount of power generation with a target amount of power generation which is determined in accordance with the second power request signal.
摘要:
Disclosed is a method of manufacturing a silver halide emulsion, the method comprising the step of ultrafiltrating and electrodialyzing a silver halide emulsion containing silver halide grains and gelatin having an average molecular weight of 500 to 70,000, by means of an ultrafiltration unit having an ultrafiltration membrane, whereby the emulsion is desalted and concentrated.
摘要:
A manuscript display apparatus includes a bow-shaped main body having a light emitting body housed therein translucent diffusion plate arranged on top of the main body to diffuse light emitted from the light emitting body, a support portion rotatably supported with respect to the main body, and a half mirror supported at the tip end of the support portion. When the manuscript display apparatus is to be used, a manuscript sheet is placed on top of the diffusion plate in such a way that its surface on which a manuscript is written faces down to th diffusion plate. The light emitted from the light emitting body is diffused by the diffusion plate and uniformly illuminate the manuscript sheet from the underside thereof. The light that passes through the manuscript sheet is reflected off the half mirror and therefor the manuscript is displayed as a virtual image. Because the virtual image is reversed at the half mirror, the virtual image displays the manuscript of the manuscript sheet in its original form.
摘要:
A camshaft made of cast iron containing at least one element selected from the group consisting of Bi, Te, Se, As, Sb and Sn in a total amount of 0.0001 to 0.1 weight %, preferably, 0.001 to 0.1 weight %. The cast iron may further contain at least one element selected from the group consisting of Ni, Cu and Co, in an amount of 0.2 to 5.0 weight %. Furthermore, in the camshaft of the present invention, a carbide area ratio at the sliding surface of the cam lobe portion is not less than 40%, the chilled carbide has an average grain diameter of not more than 15 .mu.m, and the sliding surface of the cam lobe portion has a hardness of not less than HRC 53.
摘要:
A microscope comprises a cantilever having a distal end equipped with an electrically conductive probe allowing current to flow and having a fine tip whose voltage is controllable, a position control mechanism for controlling position of a sample with respect to a base end of the cantilever, a small displacement measuring mechanism for measuring a deflection amount of the cantilever, and a deflection control mechanism for controlling deflection of the cantilever so as to adjust a distance between the fine tip of the probe and the sample. A method for measuring surfaces using this novel microscope comprises steps of: maintaining deflection of the cantilever at a constant value by using the small displacement measuring mechanism and the deflection control mechanism; applying a constant voltage between the electrically conductive probe and the sample; scanning the sample along surface of the sample with the probe, while a tunneling current is maintained at a constant value by using the position control mechanism; and measuring a control amount of the position control mechanism in a direction vertical to the sample and a control amount of the deflection control mechanism.
摘要:
A clean room having an air-conditioner unit built in the shell of an airtight main room in such a manner as to form part of the internal wall of the main room. This air-conditioner unit is provided with an external casing of a small thickness and this external casing is provided with an air inlet and an air outlet which is fitted with a high-performance filter. The casing has an air blower disposed therein. The airtight main room is mainly formed of a plurality of gate-shaped frames disposed in parallel as regularly spaced on a floor surface. The air-conditioner unit and a control unit are disposed in the spaces intervening between the adjacent vertical members of the gate-shaped frames. The internal wall of the main room is formed of wall panels and the front panel of the casing of the air-conditioner unit.
摘要:
Method for producing an extrusion die and resulting die for making a honeycomb structure provided with axially extending separate passages. Feed passages and interconnected pooling slots are formed in a metallic die body respectively from opposed end surfaces so as to be communicated with each other. A metallic plate is secured to the end surface provided with the interconnected pooling slots and formed in that plate to communicate with the pooling slots are narrower interconnected extrusion slots having the same shape and size as those of walls of the desired honeycomb structure.
摘要:
Method for producing an extrusion die and resulting die for making a honeycomb structure provided with axially extending separate passages. Feed passages and interconnected pooling slots are formed in a metallic die body respectively from opposed end surfaces so as to be communicated with each other. A metallic plate is bonded as by brazing to the end surface provided with the interconnected pooling slots and formed in that plate to communicate with the pooling slots are narrower interconnected extrusion slots having the same shape and size as those of walls of the desired honeycomb structure. Before securing the metal plate to the end surface, holes are made either in the plate or in the end surface, or both, to increase the bonding contact area therebetween.
摘要:
Provided is a liquid curable silicone rubber composition containing the following components of (A), (B), (C) and (D): (A) 100 parts by weight of an organopolysiloxane having one or more silicon atom-bonded alkenyl groups on average in one molecule, (B) (B-1) an organohydrogenpolysiloxane having at least three silicon atom-bonded hydrogen atoms in one molecule, wherein at least one of the hydrogen atoms is present as a siloxane unit represented by the formula of R1HSi02/2 (wherein R1 represents a non-substituted or substituted monovalent hydrocarbon group containing no aliphatic unsaturated bond) in the molecule and (B-2) a linear organohydrogenpolysiloxane having one silicon atom-bonded hydrogen atom only at each of both terminals of the molecular chain and having no aliphatic unsaturated bond(s) in a molecule, [provided that the blending amount of component (B-1) and component (B-2) is an amount such that the molar ratio of silicon atom-bonded hydrogen atoms contained in component (B-1) and component (B-2):alkenyl groups contained in component (A) ranges from (0.8:1.0) to (2.5:1.0), and the total number of silicon atom-bonded hydrogen atoms contained in component (B-2) is 70 to 100% of the total number of silicon atom-bonded hydrogen atoms contained in component (B-1) and component (B-2); provided that when the aforementioned numerical value is 100%, component (B) consists only of (B-2).] (C) a hydrosilylation reaction catalyst: an amount to cure the present composition, and (D) 0.1 to 50 parts by weight of a reinforcing silica fine powder. A coated woven fabric with a silicone rubber-coated layer formed of a cured product of this liquid curable silicone rubber composition is suitable as a coated woven fabric for use in airbags.