Abstract:
An article and process provides accurate alignment and a temporary bond between flexible circuit layers (12) and stiffening members (16) during the lay-up process prior to subsequent lamination steps. Plated metal features (26) located on the flexible circuitry (12) are extruded through holes (30) in an intermediate adhesive layer (14), then compressed against the wall of a hole (32) in the stiffening member (16). The extruded material (26) is plastically deformed and thereby temporarily secures the assembly (10) of flexible circuit (12), adhesive (14) and stiffening member (16) through a friction fit in the hole (32). This temporary bond allows the assembly to be picked up and placed on a lamination plate while retaining alignment of the components.
Abstract:
A microelectronic connection component includes a dielectric sheet (34) having an area array of elongated, strip-like leads (60). Each lead has a terminal end (66) fastened to the sheet and a tip end (68) 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 (86). 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 invention concerns a conduction film (4) lying on a substrate, the conductor tracks in the film being disposed so that they run parallel to each other on to a tab (5). Located in the substrate is a socket (6) which extends downwards at an angle and on whose inclined floor the tab (5) with the exposed top surfaces of the conductor tracks lies. For contacting, a plug with outwards-biased spring contact elements (8) which face the floor of the socket (6) is inserted into the socket (6) in the direction of the open end of the tab and locked in the end position.
Abstract:
The description relates to a process for manufacturing an at least two-layer printed circuit with a base plate, a first conductor plane with contact areas (pads) and a second conductor plane with connecting areas (solder eyes) in which a conductive film with an adhesive layer is laminated on the base plate with the first conductor plane and the pads, whereby the adhesive layer and the conductive film has holes corresponding to the pads of the first conductor plane. The perforated conductive film with the adhesive layer is pressed on the base plate with the first conductor plane at a pressure of 50 to 150 bar and a temperature of at least 80 °C and thus laminated, whereby the contact areas of the first conductor plane are caused at least partially to bulge through the holes in the adhesive layer towards the surface of the connecting areas of the second conductor plane so that the surfaces of the connecting areas are at a distance from the surface of the connecting areas of the second conductor plane which is shorter than the thickness of the connecting areas. The second conductor plane with the connecting areas (solder eyes) is then produced from the conductive film, whereby the solder eyes of the second conductor plane border the holes in the adhesive layer, whereupon the pads of the first conductor plane can be electrically connected to the corresponding solder eyes in the second conductor plane by soldering or by the application of a conductive paste.
Abstract:
Method and apparatus (10) for forming power distribution systems or parts thereof during punching operations. A planar member (16) of conductive material is located proximate to a substrate (14) upon which the power distribution system or part thereof is to be formed. A punch (18) is used to form the conductors (12) from the planar member (16) and deposit the conductors (12) on the substrate (14). The action of the punch (18) causes mechanical interference between the conductor (12) and the substrate (14) thereby securing the conductor to the substrate. The power distribution system or part thereof may comprise a terminal assembly, an electric switch, a heat sink of an electronic module, or an electrical circuit board.
Abstract:
Electrical circuitry (32) is comprised of a plurality of layers (30, 100) each layer (30, 100) including one or more electrical pathways (36, 38) each layer (30, 100) also including insulation (34) for insulating at least part of one layer (30) from another layer (100). The pathways (36, 38) comprise repeating patterns (40, 42). Each pathway (36, 38) of each layer (30, 100) can communicate with the pathways (36, 38) of the next adjacent layers (30, 100). Some portions of the patterns (40, 42) which comprise the pathways (36, 38) of each layer (30, 100) can be at least partially aligned with some portion of the patterns (40, 42) of pathways (36, 38) of the other layers (30, 100). Other portions of the pathways (36, 38) of the layers (30, 100) remain unaligned. A pulse laser (134) can be used to sever unaligned portions of the pathways (36, 38) as appropriate to create the desired electrical circuitry (32). Components can be secured to the electrical circuitry as required. Further, such circuitry can be used in the construction of the final metallization layers of chips such as gate arrays.
Abstract:
Die Erfindung betrifft eine elektrische Schaltung mit einem Schaltungsträger (3) in der Art einer wenigstens teilweise flexiblen Leiterplatte. Der Schaltungsträger (3) weist elektrische, elektronische o. dgl. Bauteile (2), wie einen Elektromotor (2a), Schalter (2b), Widerstand, Kondensator, Spule, IC, Steckanschluß o. dgl. auf. Weiter besitzt der Schaltungsträger (3) Leiterbahnen zur elektrischen Verbindung der Bauteile (2) sowie Kontaktflächen (5) zur elektrischen Kontaktierung der Bauteile (2). Die Kontaktfläche (5) ist wenigstens teilweise in der Ebene des Schaltungsträgers (3) freigeschnitten, derart dass die Kontaktfläche (5) eine Flexibilität in eine außerhalb der Ebene (6) des Schaltungsträgers (3) verlaufende Richtung aufweist, insbesondere in der Art einer Kontaktzunge. Ein Kontaktelement (8) zur elektrischen Kontaktierung des Bauteils (2) liegt mit einem Anpressdruck derart an der Kontaktfläche (5) an, dass die Kontaktfläche (5) aus der Ebene (6) des Schaltungsträgers (3) ausgelenkt ist.
Abstract:
The present invention relates to a selectively conductive toy building element, comprising: a body adapted for releasable engagement to at least one other toy building element body or to a corresponding baseplate, the body including at least one conductive portion having at least one contact area adapted to generate pressure on a conductive portion or contact area of an adjacent toy building element body, in such a way that ensures electrical conduction between said toy building elements in a desired location and direction.