摘要:
A movable trailing edge is composed of a main body including a structural frame member in which a spar and a rib intersect with each other, and a first outer plate that covers the main body. The first outer plate is placed on and cover the structural frame member, a rotating probe is pressed against the first outer plate from the obverse side thereof to friction stir weld the first outer plate and the side end face of the structural frame member. Joint parts are arranged in a dotted pattern.
摘要:
A processing apparatus includes a sealed vacuum chamber which contains a processing portion; a pressure controlling system which keeps the internal pressure of the sealed vacuum chamber constant at a predetermined level by exhausting the ambient gas in the sealed vacuum chamber; and an ambient gas recirculating system which recirculates the ambient gas exhausted from the sealed vacuum chamber back into the sealed vacuum chamber; wherein the ambient as recirculated by the ambient gas recirculating system is blown into the sealed vacuum chamber so that a gas flow is generated in a predetermined direction along the processing portion.
摘要:
A processing apparatus includes a sealed vacuum chamber which contains a processing portion; a pressure controlling system which keeps the internal pressure of the sealed vacuum chamber constant at a predetermined level by exhausting the ambient gas in the sealed vacuum chamber; and an ambient gas recirculating system which recirculates the ambient gas exhausted from the sealed vacuum chamber back into the sealed vacuum chamber; wherein the ambient as recirculated by the ambient gas recirculating system is blown into the sealed vacuum chamber so that a gas flow is generated in a predetermined direction along the processing portion.
摘要:
A processing apparatus includes a sealed vacuum chamber which contains a processing portion; a pressure controlling system which keeps the internal pressure of the sealed vacuum chamber constant at a predetermined level by exhausting the ambient gas in the sealed vacuum chamber; and an ambient gas recirculating system which recirculates the ambient gas exhausted from the sealed vacuum chamber back into the sealed vacuum chamber; wherein the ambient gas recirculated by the ambient gas recirculating system is blown into the sealed vacuum chamber so that a gas flow is generated in a predetermined direction along the processing portion.
摘要:
An exposure apparatus includes a gap measuring device for measuring a gap between a mask, having a mask membrane, and a substrate, a gap adjuster for adjusting the gap between the mask and the substrate and a driver for relatively moving the mask and the substrate relative to each other. The gap adjusting device adjusts the gap when the mask and the substrate are placed at a position at which they are opposed to each other in an area smaller than a predetermined area.
摘要:
A cooling system that is capable of cooling a working vehicle, such as a wheeled loader, at a good efficiency and at a reduced level of noise. Plural radiators are arranged in a V-shaped form within a plane behind an engine mounted in the rear of the engine compartment of the vehicle. The radiators are spread a part rearwardly to form a space between them. A cooling fan is mounted in this space. The side surfaces of the radiators are provided with intake ports that are covered by openable side covers. The top of each intake ports is covered by a hood whose top surface can be tilted rearwardly and downwardly.
摘要:
A spark plug assembly is produced in the following manner. Namely, an insulator having an axial through-hole with a metallic terminal fixed at an end thereof and a center electrode fixed at the other end and with packing layers of bulk powders of a conductive glass seal layer, a resistor and the like being formed in the through-hole between the metallic terminal and the center electrode. Subsequently, the spark plug assembly is heated so that the temperature of the side closer to the center electrode is higher than that of the side closer to the metallic terminal along the longitudinal axis of the insulator. Then, the packing layers of the bulk powders within the through-hole are pressed between the center electrode and the metallic terminal by applying pressure to the heated spark plug assembly so that the metallic terminal comes closer to the center electrode along the axis of the through-hole with the position of the center electrode being fixed relative to the through-hole.
摘要:
In a method for setting appropriate initial-failure screening conditions when mass-producing semiconductor devices of multiple types, devices of each type being manufactured in a small number, the step of subjecting products of every type to an acceleration test is excluded, and instead, the failure ratio on the market of semiconductor devices of each type is estimated using a testing semiconductor device. Specifically, {circle around (1)} first, all types of semiconductor devices to be developed and mass-produced are classified into several groups. {circle around (2)} A test semiconductor device is developed which has the same number of elements, the same gate area, the same multi-layer wiring length and the same number of contact holes as the average number of elements, the average gate area, the average wiring length and the average number of contact holes of the semiconductor devices included in one of the type groups, respectively. The testing semiconductor device has main features (design rules, MOSFET structure, wiring structure, etc.) common to the types included in its corresponding type group, and a failed portion thereof, if any, can be easily detected by an analysis using a tester.
摘要:
In a spark plug (100), the resistor composition constituting a resistor (15) contains semiconductive ceramic particles, offering a superior load life characteristic. Also, the value of (.alpha.2-.alpha.1)/.alpha.1 >=-0.30, where a value of electric resistance between a terminal (13) and a center electrode (3) is .alpha.1 at 20.degree. C. and .alpha.2 at 150.degree. C., so that deterioration of the radio frequency noise prevention performance at high temperatures can be effectively suppressed. The resistor composition contains semiconductive ceramic particles whose temperature coefficient of electric resistance shows a positive value, or a negative value of relatively small absolute value, (e.g., TiO.sub.2 particles having a rutile type crystalline structure, titanate or zirconate of alkali earth metal elements, titanium suboxide, etc.), or titanium metal. Thus, the invention provides a resistor-incorporated spark plug which is enabled to offer a stable load life characteristic even when a high load acts thereon, and which is unlikely to deteriorate in the radio frequency noise prevention performance even under high temperatures.
摘要:
An exposure method including the steps of providing a wafer and a mask having a membrane and a pattern formed thereon, arranging the mask and the wafer opposite to each other, obtaining information corresponding to deformation of the membrane of the mask, reducing the influence of the deformation of the membrane, and transferring the pattern of the mask to the wafer by exposing the mask to radiant energy. Also disclosed is an exposure device for performing this exposure method.