摘要:
When a forward bias is applied between a selected unit electrode of scanning electrodes and a selected unit electrode of data electrodes to cause a selected pixel concerning both of the selected unit electrodes to emit light, and a reverse bias is applied between nonselected unit electrodes of the scanning electrodes and nonselected unit electrodes of the data electrodes, thereby preventing crosstalk caused by a semi-excited state of the nonselected pixels, all of the scanning electrodes and all of the data electrodes are short-circuited once, immediately before a predetermined unit electrode of the data electrode, which should be selected in accordance with selection of each of the unit electrodes of the scanning electrodes, is selected, to set all of the pixels at a zero bias.
摘要:
A method of mounting a semiconductor device first forms a barrier layer on one surface of an semiconductor substrate made of Si. Then, a first Au layer is formed on the barrier layer. Accordingly, a semiconductor device is provided. The barrier layer is formed of metal for preventing mutual diffusion of Si in the Si semiconductor substrate with Au in the first Au layer at a high temperature of 600.degree. C. or higher. A step of acquiring a package substrate forms a metal coated layer on a base first and then forms a second Au layer on the surface of the metal coated layer. Then, the semiconductor device is placed on the package substrate with the first and second Au layers contacting with each other, and the semiconductor device and the package substrate are scrubbed against each other. Consequently, the first and second Au layers form Au--Au eutectic layer, thereby connect the semiconductor device to the package substrate.
摘要:
Disclosed herein is a recording medium comprising an alumina hydrate having an average pore radius of 20 to 200 .ANG. and a half breadth of pore radius distribution of 20 to 150 .ANG..
摘要:
A semiconductor sensor has piezo resistor elements formed in deformable semiconductor portions for forming a Wheatstone bridge circuit, and a fault detecting circuit is associated with the Wheatstone bridge circuit for producing a warning signal indicative of occurrence of a fault in the Wheatstone bridge circuit, wherein the fault detecting circuit has two pairs of window comparators independently monitoring two output nodes of the Wheatstone bridge circuit to see whether or not the voltage level at each of the output nodes ranges between the upper limit and the lower limit of a normal voltage range so that a destruction of one of the piezo resistor elements is detectable.
摘要:
A printing plate blank is formed by disposing successively a base layer, a photosensitive layer susceptible of peeling development, and a peeling support layer (or a laminate of a photosensitive silver salt layer including a photosensitive silver halide, an organic silver salt and a reducing agent). A printing plate is prepared by forming a polymerized part in the photosensitive layer through imagewise exposure and peeling apart the peeling support layer (or the laminate) together with the yet-unpolymerized port of the photosensitive layer to leave the polymerized part of the photosensitive layer on the base layer. The resultant printing plate is provided with an improved printing durability primarily by inclusion of a polymerizable compound in the base layer effective for firmly fastening the polymerized part to the base layer and additionally by subjecting the thus-prepared printing plate to additional exposure, heating and/or pressure application.
摘要:
A connection device attached to an outlet end of a pipe of pressurized fluid such as compressed air and used for connecting the pipe to a supply inlet of a utilization device, having an automatically operated valve built therein and arranged to be opened by only pressing it against the inlet of the utilization device to supply the pressurized fluid to the utilization device and closed by only separating it from the inlet of the utilization device to shut off any leakage of the fluid. In the device of this invention, the structure and arrangement of the automatic valve are improved for enabling size reduction of the device. Accordingly, the device of this invention is especially suitable in the case where a plurality of devices are arranged on a single base member and plural pipes connected thereto are automatically connected to and disconnected from corresponding plural utilization devices at the same time.
摘要:
This invention relates to a high-speed magnetic tape transfer apparatus which has a reel motor for transferring tape wrapped around a cylinder having a rotary head at high speed and a capstan motor for transferring the tape at a standard speed. A detection section detects either a predetermined amount of the magnetic tape wound around a reel, a predetermined speed of the tape, or a predetermined current flowing in the reel motor, and generates a signal responsive thereto. A control section switches a device for transferring the magnetic tape from the reel motor to the capstan motor in response to the detection signal.
摘要:
According to a magnetic tape high-speed braking apparatus, a cam groove for setting various operation modes is formed in a cam gear. A high-speed mode such as a high-speed search is set on the cam gear at that portion thereof which corresponds to an end portion of a loading state. When a loading motor rotates in a predetermined loading direction, a worm gear is rotated in a first direction via pulleys, a belt and gears. In high-speed search mode, a cam pin of a cam lever engaged with the cam gear is fixed to a recess of a rotatable lock lever. When a tape end is detected and the cam gear rotates in a direction opposite to the first direction, the cam pin is separated from the recess by a projection of worm gear member, a lock release lever and a spring. Accordingly, the cam lever, a brake connector, a brake switching lever and a brake slider are actuated to press brake shoes of main brakes abutting on the brake slider, against a feed reel stand and a take-up reel stand, thereby instantaneously braking these reel stands.
摘要:
This fastener driving device is equipped with an impact force applying device that repeatedly applies impact forces to a fastener; and a load cell that detects a reaction force acting on the impact force applying device. The impact force applying device stops the applying of the impact force to the fastener on the basis of a detection result of the reactive force.