Abstract:
A method for the interconnection of stacked packages encapsulating, for example, a semiconductor chip containing an integrated circuit, for example a memory. Packages with connection pins (21) are stacked and fixedly joined to each other by means of a coating of resin for example. The pins of the packages are cut so as to be flush with the faces (31, 32) of the stack (3). The connection (C) of the packages with one another and their connection to connection pads (35) of the stack is done on the faces of the stack. The connection pads are, if necessary, provided with connection pins (36).
Abstract:
A device with an electric circuit configuration includes electrical components and a pressed grid stamped from a metal strip for electrically conductively connecting the electrical components to one another. The pressed grid has bent-over large-area peripheral regions and a plug part with connection pins stamped out of the metal strip.
Abstract:
An integrated interior trim and electrical assembly for use in an automotive vehicle includes an integrated electrical junction box and an interior trim panel. The interior trim panel has a generally rigid substrate covered by an aesthetically pleasing covering material. The junction box includes a flexible printed circuit board, a rigid printed circuit board, a busbar and insulator assembly, and a conductive deposited trace. The integrated interior trim and electrical assembly employs a sheet-like electrically conductive circuit layer which distributes electricity between a switch and an electricity activated device. A sheet-like electrically conductive layer is partially external from and partially disposed inside of an electrical junction box wherein it is electrically connected to one or more of the other circuit layers also contained within the junction box. Portions of the sheet-like electrically conductive layer external to the junction box are also suitable for integration with a series of occupant operable switches. Another aspect of the present invention employs a conductive elastomeric pad between internal circuit layers. A portion of an electrical junction box is molded within an interior trim panel substrate. Integrated interior trim and electrical assembly, a sheet-like electrically conductive layer is formed and affixed within an interior trim panel.
Abstract:
A conductive component for carrying electrical signals constructed from a molded polymer substrate and a conductive coating adhered to the substrate, the coating defining a continuous electrical pathway between at least two terminals. Preferably, molded plastic such as liquid crystal polymer is formed to make circuits having conductive ink adhered thereto in order to provide inexpensive and versatile printed circuit boards for carrying electrical traces and other components and to provide printed formed contacts. The conductive solderable inks can be adhered to the substrate, for example, via screen printing, brush, spraying, dipping, masking, vacuum plating or vacuum deposition with subsequent oven drying, reflowing in a vapor phase, post curing or plating.
Abstract:
An automotive instrument cluster case is molded of a resin material. A rigid rear wall of the case has a planar outer surface including a connector region having two adjacent flaps, each flap molded with a thin flexible section and a rigid terminal section. Printed circuit paths are applied to the plane outer surface including the flaps. Then the flaps are deformed into the case, with the flexible section being curved and the terminal sections being spaced apart with the circuit paths forming terminal strips facing one another to form a connector socket. Interlocking stop elements molded on the inner surface hold the flaps apart to receive a male connector.
Abstract:
A circuit board for an instrument cluster comprises injection-molded plastic springs connecting islands of the circuit board to a main portion of the circuit board. Each island further has integrally-molded clips residing in the plane of the island. The clips are adapted for insertion and retention of terminals of electrical gauge movements. When the electrical gauge movements are attached to the circuit board via the clips, the springs provide compliance so that the gauge movements can then be attached to one or more face plates of the instrument cluster. The compliance provided by the springs allows tolerance stack-ups among the various components of the instrument cluster assembly to be overcome.
Abstract:
An insulating part for an electronic device includes a first metallized outer surface capable of cooling one or more electronic components disposed on the insulating part. The insulating part also includes one or more additional metallized outer surfaces, such as a set of cooling ribs, to provide improved cooling for the electronic components. These additional outer surfaces are coupled electrically and thermally to the first metallized outer surface, and to each other by recesses containing a heat transfer element, such as a metallization or a soldered connection. Thus, heat transferred to the first outer surface is further dissipated among the several additional cooling surfaces.
Abstract:
A method for manufacturing a curved surface multi-layer wiring board having the through-holes and high accurate inner patters with a high reliability. A curved surface multi-layer wiring board is manufactured by processes for forming the inner pattern on the copper clad substrates, and for perforating the holes to the substrates and prepregs, and for laying-up these substrates and prepregs, then for pressing these substrates and prepregs in the formation mould. Then the outer pattern are formed by the laser exposure process after the through holes are connected between the layers. A method is also provided for repeating the laying-up processes in order to obtain a curved surface multi-layer wiring board of which is a three dimensional curved surface.
Abstract:
Printed circuits which reside on three dimensional surfaces are disclosed. Using a first technique, a three dimensional surface is formed on a substrate having a high melting point or permitting a high degree of infrared energy transmittance. The surface contains a layer of metalization maintained at a depth of less than two microns. An infrared laser then moves around the surface and selectively vaporizes metalization leaving a desired printed circuit pattern. The remaining metalization is plated to a useable depth. Using a second technique, a fiber optic bundle is machined on one end to mate with the three dimensional surface. The three dimensional surface, metalized and coated with photo resist, resides in intimate contact with this first end. A second end of the cable is flat and resides in intimate contact with two dimensional master photo artwork. A pattern is exposed on the photoresist through the fiber optic bundle, and the metalization is etched using conventional techniques.
Abstract:
A new and improved printed circuit board tool and method of making and using it, to produce three dimensional printed circuit boards having grooves with strongly bonded or laminated metallic pads therein. The printed circuit board tool includes a metallized male mold substrate having a plurality of groove forming projections disposed in the substrate surface. The method of making the metallized mold includes forming a female parent or predecessor master tool that may be used to produce a large number of the metallized male molds for producing new and improved three-dimensional printed circuit boards. The new and improved three-dimensional printed circuit board includes a substrate composed of a high heat deflective plastic, and a plurality of recesses or grooves molded into the substrate surface for receiving therein the fine pitch, closely spaced-apart leads of an integrated circuit. A plurality of metallized sunken pads or lands are adhered or bonded within the grooves for establishing an electrical path within each groove.