Abstract:
A spacer member (14) for electrical components (16), especially small-diameter components (such as resistors, diodes, and capacitors) is mounted on a printed circuit board (12). Where the printed circuit board (12) has a first hole (30) disposed therethrough, the walls of such first hole comprising electrically conducting material, the spacer (14), which comprises an electrically insulating member, has a second hole (28) disposed therethrough. The first and second holes (30,28) are in substantial alignment, the walls of the second hole (28) comprising electrically insulating material. The electrical component (16) is disposed on the spacer member (14), with a lead (22) comprising a stress bend portion (24) and an end portion (26) disposed through the first and second holes (30,28). The end portion (26) can be soldered to the walls of the first hole (30) with the solder being substantially prevented from "wicking" up the component lead (22) to the stress bend portion (24) of the lead by the electrically insulating spacer member (14), and specifically by the electrically insulated walls of the second hole (28).
Abstract:
A spacer member (14) for electrical components (16), especially small-diameter components (such as resistors, diodes, and capacitors) is mounted on a printed circuit board (12). Where the printed circuit board (12) has a first hole (30) disposed therethrough, the walls of such first hole comprising electrically conducting material, the spacer (14), which comprises an electrically insulating member, has a second hole (28) disposed therethrough. The first and second holes (30,28) are in substantial alignment, the walls of the second hole (28) comprising electrically insulating material. The electrical component (16) is disposed on the spacer member (14), with a lead (22) comprising a stress bend portion (24) and an end portion (26) disposed through the first and second holes (30,28). The end portion (26) can be soldered to the walls of the first hole (30) with the solder being substantially prevented from "wicking" up the component lead (22) to the stress bend portion (24) of the lead by the electrically insulating spacer member (14), and specifically by the electrically insulated walls of the second hole (28).
Abstract:
An electric component part has its lead terminals (55) bent in thickness directions in a middle section thereof at at least two positions so that a step section (l4b) virtually in parallel to the bottom of a circuit substrate (ll) is formed with the intention of absorbing the external force applied to the part by changing the shape of the lead terminals (55). Increase in the part layout area due to the formation of the horizontal step section can be avoided, when necessary, by shifting the terminal lead out position on the component part inward thereby to minimize the jetty dimensions.
Abstract:
An electrical assembly having an integrated circuit package (14) which has a plurality of electrical conductors (22) fixed thereto. The electrical conductors form mechanical and electrical connections. Each of the electrical conductors has a root (24) at one end and a tip (32) at the other end. The root of each conductor is attached to the integrated circuit package to form a fixed electrical and mechanical connection. The tip of each conductor is adapted to be connected to a surface at a predetermined location. Each of the electrical conductors has at least two bends (26, 28) between the root and the tip for providing strain relief when the tip is connected to a surface.
Abstract:
A flexible electrical connection, and method for making such a connection, for mounting an electronic device (20), such as a semiconductor chip made primarily of silicon, on an organic substrate (10), such as a printed circuit board made of a glass material impregnated with epoxy resin, are disclosed. The flexible electrical connection comprises a circuit line (11) attached to the surface of the organic substrate and having a floating terminus (16) in a relatively low adhesive area of the organic substrate where it is desired to mount the electronic device on the organic substrate. The floating terminus includes a stress relief bend (17), and the flexible electrical connection relieves stresses, such as thermal stresses, which may otherwise damage the physical and/or electrical connection between the electronic device and the floating terminus of the flexible electrical connection when the electronic device is mounted on the surface of the organic substrate.
Abstract:
An electric component part has its lead terminals (55) bent in thickness directions in a middle section thereof at at least two positions so that a step section (l4b) virtually in parallel to the bottom of a circuit substrate (ll) is formed with the intention of absorbing the external force applied to the part by changing the shape of the lead terminals (55). Increase in the part layout area due to the formation of the horizontal step section can be avoided, when necessary, by shifting the terminal lead out position on the component part inward thereby to minimize the jetty dimensions.
Abstract:
Die Erfindung betrifft eine Leistungshalbleitereinrichtung (1) mit einem eine erste und eine zweite elektrisch leitende Kontaktfläche (2a und 2b) aufweisenden Substrat (3) auf dem Leistungshalbleiterbauelemente (4) angeordnet und mit dem Substrat (3) elektrisch leitend verbunden sind, und mit einem elektrischen Kondensator (5), der zum elektrischen Anschluss des Kondensators ein elektrisch leitendes erstes und ein elektrisch leitendes zweites Kondensatoranschlusselement (5a und 5b) aufweist, wobei die Kondensatoranschlusselemente mit dem Substrat elektrisch leitend druckkontaktiert sind. Die Erfindung schafft eine Leistungshalbleitereinrichtung, deren Kondensatoren zuverlässig elektrisch leitend mit dem Substrat der Leistungshalbleitereinrichtung verbunden sind. Abbildung 2.
Abstract:
A printed circuit board (10) mounted with a power module (20) having both a plurality of lead terminals (21) for soldering and at least one screw terminal (22) for screwing includes a through hole (1) which receives the lead terminal (21) and is soldered to the lead terminal (21), and an electrode section (3) provided with a screw hole (4) fastened to the screw terminal (22) via a screw (23). A groove (6) is formed between the electrode section (3) and the through hole (1) so as to intersect with two common tangents (11 a, 11 b) each connecting, to an outer periphery of a land (2) of the through hole (1), an outer periphery of a contact area (5) of the electrode section (3) which is in contact with a head bearing surface (23c) of a screw (23) or a washer (23d).