摘要:
A strain or stress gauge 1A is presented for measuring the stress of a structure or a member. The gauge 1A comprises a bundle of electric conductive fibers 3, and a pair of terminals 4, for measuring an electric resistance of the bundle of electric conductive fibers provided on both ends thereof. It presents a strain or stress gauge having a simple structure, which can be produced inexpensively, and its size can be chosen freely. It is possible to know not only the state of a strain or stress but also the history of stress in a structure or a structural member which, by the characteristics of a specific curve relating the stress/strain relationship of the gauge.
摘要:
A semiconductor device employs interconnecting films on film circuit as ground lines which extend to the periphery of the film circuit where there is a further connection to a conductive reinforcing plate. Advantageously the conductive reinforcing plate reduces electrical noise from interfering with the semiconductor device and prevents the semiconductor device from radiating undesired signals. The interconnecting films also reduce cross-talk between signal lines of the semiconductor device.
摘要:
A push-on fixer for screw engagement in which a plurality of radially extending notches are formed in a circumferential edge region of a circular hole formed at a center portion of a thin discoid body, and a plurality of inner plate spring pieces are formed on the circumferential edge region of the circular hole so as to allow insertion of an aiming screw into the circular hole and so as to clamp the inserted aiming screw, is provided. An aiming screw is inserted into an aiming screw insertion hole of a lamp body of an automobile head lamp, and is retained so as to be prevented from coming out of the lamp body. A plurality of outer plate spring pieces which press against a push-on fixer abutment surface of the lamp body and a plurality of clamp release claws for releasing the clamping of the screw by the screw clamp plate spring pieces are formed on the outer circumferential edge of the thin discoid body.
摘要:
A headlight for a motor vehicle which can selectively be used as an ordinary headlight or a fog light. A yellow cover is slidably mounted slidable along the axial direction of the bulb of the headlight so that it can be moved between a position where is surrounds the bulb, in which light emitted by the bulb must pass through the cover before reaching the reflector, and a position where the light from the bulb can proceed directly to the reflector without passing through the cover.
摘要:
An improved semiconductor device and method of manufacturing employs interconnecting films on film circuit as ground lines which extend to the periphery of the film circuit where there is a further connection to a conductive reinforcing plate 25. Advantageously, the conductive reinforcing plate reduces electrical noise from interfering with the semiconductor device and prevents the semiconductor device from radiating undesired signals. The interconnecting films also reduce cross-talk between signal lines of the semiconductor device.
摘要:
An IC (semiconductor device) comprises a package substrate provided on its face side with a plurality of wiring patterns such as electrode lands and wirings and provided on its back side with a plurality of electrode bumps corresponding to the wiring patterns, an IC chip mounted on the face side of the package substrate in a face-up manner, a sealing resin sealing the IC chip, and an indication provided on the back side of the package substrate for indicating the position of the IC chip. A method of inspecting a failure reason in the case of some failure of the IC chip comprises the steps of forming an opening by removing from the back side the package substrate in the region surrounded by the indication, mounting the IC chip on a test substrate, passing an electric current to the IC chip for operation, and inspecting and analyzing the reason of failure by a photo-emission analyzing method. The photo-emission analysis can be conducted without processing an upper layer wiring portion or the like of the IC chip.