摘要:
A semiconductor data processor has a first memory(6) constituting a cache memory, a second memory(20) capable of being a cacheable area or a non-cacheable area by the first memory, and a read buffer(12) capable of carrying out an operation for outputting data corresponding to a read access when the second memory is read accessed as the non-cacheable area. The designation of the cacheable area and the non-cacheable area for the second memory is determined by the designation of a cacheable area or a non-cacheable area for a memory space to which the second memory is mapped. The designation may be carried out in the operation mode of the data processor or by setting a control register, for example.
摘要:
In a high frequency power amplifier circuit that supplies a bias to an amplifying FET by a current mirror method, scattering of a threshold voltage Vth due to the scattering of the channel impurity concentration of the FET, and a shift of a bias point caused by the scattering of the threshold voltage Vth and a channel length modulation coefficient λ due to a short channel effect are corrected automatically. The scattering of a high frequency power amplifying characteristic can be reduced as a result.
摘要:
A fine wiring line profile with satisfactory precision is formed from a multilayer film containing a first layer made of an aluminum alloy and a second layer formed thereon made of a molybdenum-niobium alloy, by simultaneously etching the two layers constituting the multilayer film through only one etching operation while preventing the upper layer from forming overhangs. An etchant for etching a multilayer film containing an aluminum alloy layer formed over a substrate and a molybdenum-niobium alloy layer formed thereon having a niobium content of 2-19% by weight contains an aqueous solution of an acid mixture containing phosphoric acid, nitric acid, and an organic acid; and a method of etching is carried out with this etchant. The etchant preferably has a phosphoric acid concentration Np of 50-75% by weight, a nitric acid concentration Nn of 2-15% by weight, and an acid ingredient concentration defined by Np+(98/63)Nn of 55-85% by weight.
摘要:
The main object of the present invention is to control the alignment of the ferroelectric liquid crystal by a simple method without the need of an alignment process such as the rubbing process and the photo alignment process in a liquid crystal display using a ferroelectric liquid crystal; to solve better the light scattering generated at the interface between the polarizing plate and the other functional layers compared with the case of separately providing the polarizing plate by the use of an alignment layer having the alignment function of controlling the alignment of the ferroelectric liquid crystal and the polarizing function of changing a non polarized light beam to a linear polarized light beam and thereby restrain the deterioration of the light transmittance, to achieve a thin shape and a light weight of the liquid crystal display. The invention achieves the object by using a columnar alignment layer having a column structure with plate-like molecule having the photo dichroism in the visible light range as one of the alignment layers for controlling the alignment of the ferroelectric liquid crystal and forming a reactive liquid crystal layer produced by fixing a reactive liquid crystal including a polymerizable liquid crystal material on the side to be contacted with the ferroelectric liquid crystal on the columnar alignment layer, showing the nematic phase on the columnar alignment layer.
摘要:
A solenoid valve includes a main valve having a valve member which switches over flow paths by contacting with and separating from valve seats in a valve casing, a solenoid operating portion to drive the valve member, and a manually-operated device including an operation rod air-tightly and slidably accommodated in a rod-insertion hole provided in the valve casing and abuts against an end surface of a movable iron core to push the movable iron core in its axial direction, and an operating member movably mounted to a mounting surface of the valve casing to drive the operation rod.
摘要:
To simplify and facilitate working/grinding or the like on a valve hole in a body for a valve reduce a manufacturing cost of the body for a valve. A body for a valve 10 provided with a valve hole for inserting a valve member slidably therein is formed by splitting the body for a valve on split faces 13 including an axial line of the valve hole and extending along directions of flow paths 12p, 12a, 12b, 12r communicating towards the valve hole from ports P, A, B, R opened to a body outer face and mutually joining body portion pieces which are respectively molded individually.
摘要:
A silver or silver alloy thin layer on a substrate is etched by an etching liquid uniformly without producing an etching residue while avoiding side etching due to over etching. The etching liquid contains silver ions in a range from 0.005 to 1 weight %. The etching liquid is fed to a tank or an etching liquid feeding apparatus, and then brought into contact with the silver or silver alloy thin layer on the substrate.
摘要:
An etchant for patterning thin metal films by wet etching and in particular, an etchant for use in producing semiconductor devices, such as semiconductor elements and liquid-crystal display elements, is for application to a multilayer film having a first layer made of aluminum or an aluminum alloy having formed thereon a second layer made of aluminum or an aluminum alloy each containing at least one element selected from nitrogen, oxygen, silicon, and carbon, and has a phosphoric acid content of from 35 to 65% by weight and a nitric acid content of from 0.5 to 15% by weight; and an etching is performed using the etchant.
摘要:
The present invention provides a gear mechanism of a power transmitting system, which includes a crank gear operatively coupled with a crankshaft, and a first driven gear that is coupled with a first balance shaft via a damping mechanism that allows relative rotation between the driven gear and the balance shaft. The damping mechanism includes a friction damper that generates frictional force when the first driven gear and a counter gear fixed to the first balance shaft rotate relative to each other within a predetermined rotational phase range or angle, and a stopper rubber or rubbers that elastically deforms to generate elastic force when the first driven gear and the first balance shaft rotate relative to each other beyond the predetermined rotational angle.
摘要:
A manifold valve in which mounting of a magnetometric sensor is easy and wiring is easy and which is easy to handle in maintenance and has a position detecting function is obtained. This valve is formed of a solenoid valve 1 and a manifold base 2 onto which the solenoid valve 1 is mounted. The solenoid valve 1 includes a magnet 20 mounted to a piston 12a to detect a position and a depression 22 in which a sensor is to be mounted and which is provided in a position corresponding to the magnet 20. The manifold base 2 includes a magnetometric sensor 21 provided to a position corresponding to the depression 22 in a projecting state and the magnetometric sensor 21 is automatically mounted in the depression 22 when the solenoid valve 1 is mounted onto the manifold base 2.