Abstract:
In the case of the conductor film (4) resting on a base the contact conductor tracks are arranged on a tab attachment (5) so as to run parallel to each other. Furthermore, in the base an open shaft (6) which runs obliquely downward is provided, on whose obliquely sloping bottom surface the tab attachment (5) with the contact conductor tracks which are free at the top comes to rest. For making contact, a plug socket, together with its contact spring element (8) passed outward and facing the bottom surface of the shaft (6), is inserted into the shaft (6) in the direction of the free tab end and is fastened in the end position in a locking manner.
Abstract:
A bus bar of a branch joint box, which is formed by punching a metal sheet into a preset pattern of a circuit and is formed, at a predetermined location of the circuit, with a tab to be plated with metal having excellent electrical conductivity such that a connector of a wiring harness is connected to the tab through plug-in, including a separate bus bar portion which is formed by punching a separate metal sheet and includes the tab; wherein after the tab of the separate bus bar portion has been plated with the metal, the separate bus bar portion is inserted into a predetermined portion of the bus bar so as to be mounted on the bus bar.
Abstract:
A microelectronic connection component includes a dielectric sheet having an area array of elongated, strip-like leads. Each lead has a terminal end fastened to the sheet and a tip end detachable from the sheet. Each lead extends horizontally parallel to the sheet, from its terminal end to its tip end. The tip ends are attached to a second element, such as another dielectric sheet or a semiconductor wafer. The first and second elements are then moved relative to one another to advance the tip end of each lead vertically away from the dielectric sheet and deform the leads into a bent, vertically extensive configuration. The preferred structures provide semiconductor chip assemblies with a planar area array of contacts on the chip, an array of terminals on the sheet positioned so that each terminal is substantially over the corresponding contact, and an array of metal S-shaped ribbons connected between the terminals and contacts. A compliant dielectric material may be provided between the sheet and chip, substantially surrounding the S-shaped ribbons.
Abstract:
The electrical length of a strip transmission line structure is adjusted by adding conductive projections from the ground planar conductors which extend in depth toward the strip conductor and in length along the strip conductor. These projections may preferably be formed by inward deformation of the ground planes at the desired locations. In strip transmission lines having the strip conductor positioned between two ground planes, projections are preferably added in aligned pairs with each ground plane providing one of the projections of the pair.
Abstract:
A control circuit for a gearmotor is located internal to a plastic gearbox to reduce handling damage and damage resulting from exposure to the environment. The control circuit includes a metal track which provides an electrical conductive path for input power to an electric motor and electrical components and thereby eliminates the need for a printed circuit board. The metal track includes a plurality of alternative control circuits paths, the appropriate circuit being chosen during assembly of the gearmotor by selectively piercing knock-out tabs in the metal track. The metal track includes locking receptacles for receiving switch and d.c. motor electrical terminals and further includes crimping receptacles for receiving electrical component lead wires. The metal track is located on the internal surface of the plastic gearbox cover by integrally molded posts and is secured to the cover by ultrasonically or heat staking the posts.
Abstract:
A two-layer or multilayer printed circuit board (1) comprises a support plate (2) carrying a first conductor pattern (3) and a second conductor pattern (21) which is connected to the support plate (2) via an adhesive layer (13) consisting of adhesive material, a solder-stop layer (30) being applied to the second conductor pattern. A hole (14, 15) is formed in the adhesive layer (13), via which hole a solder section (4, 5) of the first conductor pattern (3) can be electrically connected to a solder section (22, 23) of the second conductor pattern (21) via a soldered joint (37, 38), a further hole (31, 32) being formed in the solder-stop layer (30), which hole communicates with the hole (14, 15) in the adhesive layer (13), the cross-sectional area of the further hole being divisible in two areas of equal shape and equal surface content, one of the areas being coincident with the cross-sectional area of the hole (14, 15) in the adhesive layer (13) and the other area being situated completely inside a closed area of the solder section (22, 23) of the second conductor pattern (21).
Abstract:
A magnetic unit according to the present invention has a recess formed in a plate which is capable of accomodating terminals, FPC and conductive joining member, thus preventing the terminals, the conductive joining member, and the like from projecting out in the direction of thickness of a magnetic head, and consistently preventing short circuits in the terminal portion from occuring by preventing contact of the terminals and a base, as well as allowing thinner magnetic head units and FDDs to be produced. A ground circuit pattern portion formed on the FPC and the core are directly connected, such that even when a carriage having a gimbal plate mounted thereto is formed from a metal, no insulating sheets are required, which allows grounding of a magnetic core to be appropriately carried out at an electrical potential different from that of a chassis. In addition, no insulating members and the like are required, unlike conventional magnetic head units, thereby decreasing the number of parts to be used and allowing thinner magnetic head units to be produced. With the periphery of the FPC in a bent state, since the terminals and the circuit pattern can be connected, the occupying area can be decreased with respect to the gimbal plate of the FPC, allowing smaller gimbal plates and smaller magnetic head units to be produced.
Abstract:
An electrical assembly which includes a first circuit member (e.g., TCM) with at least one conductive pin projecting therefrom for being frictionally and electrically engaged by a flexible portion of circuit means of a second circuit member (e.g., PCB). An opening is provided within the PCB relative to the flexible portions such that these portions project at least partly across the opening and frictionally engage respective conductive portions of the pin when inserted within the opening. Each of these flexible portions in turn is part of a circuit layer which may be coupled to respective conductive planes or the like within the PCB, while the respective conductive portions of the pin may in turn be electrically coupled to various conductive layers within/upon the TCM.
Abstract:
A carrier board has electronic circuit components mounted thereon which are conductively connected to carrier board connectors which are in turn interconnected to an interconnect board. The interconnect board has a plurality of first conductors and second conductors that are separated and positioned to intersect to form a plurality of intersections. The first and second conductors may be selectively placed into conductive contact at selected intersect points to thereby form a desired electronic circuit. The interconnect board specifically includes a deformable material between the first and second conductors which are conductively connectable alternately and selectively through the imposition of pressure and temperature.
Abstract:
A compact photoflash unit comprising a plurality of flashlamps having lead-in wires connected to a circuit board containing thereon radiation-sensitive switching circuitry for sequentially flashing the lamps. Electrically conductive reflector panels are positioned between the lamps and the circuit board, and a sheet of electrically insulating material is interposed between the reflectors and the circuit board to prevent shorting of the circuitry on the circuit board by the conductive reflector. The insulating sheet, which may be of transparent plastic, is provided with T-shaped tabs which interlock with slots in the circuit board to secure the aligned position of the insulating sheet thereon. In assembling the photoflash unit, the insulating sheet is placed on the circuit board prior to mounting the lamps, and the T-shaped tabs of the sheet are inserted in the circuit board slots to secure the aligned location of holes in the insulating sheet with lamp-mounting eyelets in the circuit board.