摘要:
A case main body and an upper plate are reliably fitted together, a seal is formed between the fitting surfaces, and a magnetic circuit is prevented from malfunctioning. A solenoid-controlled valve, which connects a solenoid section (2) and a valve section (30), comprises a cylindrical case main body (3) having a solenoid coil (4) housed therein and having a connecting section (3A) at one end, an upper plate (6) having a locking surface (6B) adapted to be fitted to the connecting section (3A), and a connector (5) integrally provided with the upper plate (6). A seal section (20) is joined to an outer surface between the fitting surfaces of the connecting section (3A) and the upper plate (6).
摘要:
Provided is a data recording/reproducing device and a method thereof, by which copy protection can be realized privately by an easy method using the established conventional unauthorized copy prevention functions. A data recording/reproducing device (100) (a) receives a pass-code corresponding to a user, (b) protect content data to be reproduced only by the user, and records the protected content data into a storage medium, using the pass-code which is obtained to record the content data, and (c) reproduces the content data, which has been protected to be reproduced only by the user and recorded in the storage medium, using the pass-code which is obtained to reproduce the content data.
摘要:
Since structural portions of a device made of a plurality of materials are different from one another in mechanical hardness, it is very difficult to uniformly lap the structural portions. This is attributable to generation of machining recessions due to differences in lapped amount when large fixed abrasive grains are used, and generation of lapping marks caused by that the dropped abrasive grains rotate. Accordingly, in order to cope with the disadvantage, it is essential to surely grip abrasive grains of small size to a surface of a surface plate. [Solving Means]Abrasive grains are fixedly forced into a surface of a lapping tool with mechanical pressure and then the surface of the lapping tool including the abrasive grains is subjected to plasma processing, whereby an improvement in adhesion between the abrasive grains and a surface plate and reduction in the number of loose abrasive grains, which are dropped from the surface of the lapping tool, can be achieved, so that it is possible to realize lapping, in which a surface of a device made of a plurality of materials is made very plane.
摘要:
A magnetic head slider having an air bearing surface overcoat that has excellent corrosion resistance and wear resistance despite its very small thickness is provided. In one embodiment, a method of producing a magnetic head slider comprises the steps of forming, on the air bearing surface of the slider, an air bearing surface overcoat which is a film stack of an amorphous silicon film and a hard amorphous carbon film, removing the surface region from the hard amorphous carbon film by the irradiation with an ion beam which is tilted with respect to a normal to the air bearing surface, and forming a rail in the air bearing surface on which the air bearing surface overcoat has been formed. The amount of the diamond component in the hard amorphous carbon film must not be smaller than about 45% and, desirably, in a range of about 60% to 85%. A high density and covering performance are obtained when the angle of irradiating the ion beam is not smaller than about 60 degrees from a normal to the air bearing surface of the magnetic head slider and when the acceleration voltage for the ion beam is not higher than about 300 V in the step of removing part of the air bearing surface overcoat.
摘要:
Embodiments of the invention provide an air bearing surface protection film having good corrosive resistance, electrical insulative property and mechanical wear resistance in the state of an extremely thin film. In one embodiment, an air bearing surface protection film having good corrosive resistance, electrical insulative property and mechanical wear resistance in a state of an extremely thin film is obtained by disposing a thin silicon nitride film having high density, high electric resistance, chemical stability and high adhesion with a substrate as a lowermost air bearing surface protection film and disposing a film comprising tetrahedral amorphous carbon and nitrogen as an uppermost air bearing surface protection film.
摘要:
An automatic soldering mechanism is for jetting a solder jet flow to a printed-circuit board to carry out a soldering of the printed-circuit board. The automatic soldering mechanism comprises a solder tank for storing a molten solder and a solder jetting nozzle section for jetting the solder jet flow higher than a melt surface of the molten solder within the solder tank in an inert gas atmosphere.
摘要:
A data readout time adjuster to be used for a video-on-demand system includes the following units. A readout time adjusting data storage unit stores image data for adjusting readout time to be provided to subscribers who have not been assigned the readout right and are waiting for a start of a readout operation. The image data for adjusting readout time cause no inconvenience even if a transmission of the image data is interrupted any time. A readout start position check unit checks an expected time of an occurrence of the readout right and a readout start position at the expected time in response to an additional data transmission request. A readout control unit makes at least one of the readout unit and a private readout unit exclusively provided or the readout time adjusting data storage unit read the image data for adjusting readout time stored in the readout time adjusting data storage unit until the time of the occurrence of the readout right, for the subscribers who have checked the expected time and the readout start position. A readout time adjusting data transmission control unit controls the transmission unit to transmit the image data for adjusting readout time read by the readout control unit to the subscribers who are waiting for the readout right until the time of the occurrence of the readout right.
摘要:
A method of forming a thin film by a bias sputtering method using a first target made of a refractory metal mainly composed of W and a second target made of a conductive material mainly composed of a low-melting-point metal which comprises, upon sputtering the first target made of the refractory metal mainly composed of W, decreasing high energy particles incident to a substrate in a state where a desired bias voltage is applied to a substrate thereby forming a thin film of the refractory metal mainly composed of W with low resistivity and less stress and, subsequently, upon sputtering the second target made of the conductive material mainly composed of the low-melting-point metal, accelerating the growth of crystals in a state where a desired voltage is applied to a substrate thereby forming in lamination a thin film of the conductive material mainly composed of the low-melting-point metal with a large crystal grain size on the thin film made of the refractory metal mainly composed of W.
摘要翻译:通过使用由主要由W构成的难熔金属制成的第一靶和由主要由低熔点金属构成的导电性材料构成的第二靶的偏压法形成薄膜的方法,其特征在于, 由主要由W组成的难熔金属制成的第一靶,在将基板上施加期望的偏置电压的状态下降低入射到基板的高能粒子,从而形成主要由低电阻率的W构成的难熔金属的薄膜, 并且随后在溅射由主要由低熔点金属构成的导电材料制成的第二靶时,在所需电压施加到基板上的状态下加速晶体的生长,从而形成薄层 主要由难熔金属制成的薄膜上的主要由低熔点金属构成的导电材料薄膜主要由 W.
摘要:
A semiconductor optical device having a region in which semiconductor or carriers in the semiconductor and light are interact, for example, an active region for a semiconductor laser, an optical wave guide region of an optical modulator, etc., includes a quantum well structure having a well region and a barrier region. The semiconductor optical device is remarkably improved with the degree of design freedom as it relates to parameters such as thickness and selection of material without deteriorating the quantum effect, by introducing a super lattice super-layer structure into the barrier region of the quantum well structure or defining the strain for the well region and the barrier region.
摘要:
A sputtering process and an apparatus for carrying out the same for forming a film of a film forming material over the surface of a substrate. A target formed of the film forming material is held on a sputtering electrode receiving a voltage, and the substrate is disposed at a predetermined distance and opposite to the target. A high-density plasma is produced by producing a cusp field between the target and the substrate and a bias voltage is applied to the surface of the substrate to make ions of the high-density plasma fall on the surface of the substrate in order to make the particles of the film forming material sputtered from the target deposit in a thin film over the surface of the substrate.