Abstract:
A flexible circuit has a roll-molded thermoplastic resin base sheet with an integrally molded mounting structure located to receive a light emitting diode device in an illuminating position. The mounting structure is a pin receptacle constructed to receive a pin of the light emitting diode device. An electrically conductive portion is carried by the resin base and positioned for electric connection to conductors of the device. Another flexible circuit carries discrete integrated circuit chips and a field of fastener elements extending from a surface of a resin strip carrying conductive traces interconnecting the chips.
Abstract:
The present invention refers to a three-dimensional moulded interconnect device, a so-called 3D MID. In particular, the present invention refers to a 3D MID for attachment to a flexible flat cable. Further, the present invention refers to a corresponding method for detachably contacting a three-dimensional moulded interconnect device. In order to improve a 3D MID in a way that a particularly reliable and economic electric connection can be formed to a flexible flat cable, the circuit carrier comprises according to the present invention a pressing plate (114) for pressing at least one connection region (132) of the flexible flat conductor (112) onto at least one contact region (110). The flexible flat conductor (112) can be inserted at least partially between the pressing plate (114) and the substrate (110) and the contact region (110) comprises a convex bulge for contacting the connection region (132).
Abstract:
The invention concerns a method for producing electronic modules with ball connector (7) or integrated preforms capable of being soldered on a printed circuit (3) and a device for implementing said method. The invention concerns a method for producing electronic modules in the form of ball housings combining a ball grid array (7) or geometrically identical preforms for interconnecting or shielding and surface-mounted components (2) on the same surface of a substrate (1), thereby enabling said module to be directly connectable by soldering on a printed circuit (3). The balls (7) and the components (2) are transferred in one single step onto the substrate (1) by means of a gripping device adapted to the topography of the module to be produced.
Abstract:
The invention relates to an electric component for printed boards, especially an HF coaxial connector. According to the invention, the housing (1) of the component is fixed on the printed board (7) by way of solder joints between the SMD soldered connections provided on the bottom part (6) of said housing and respective soldered connections on the printed circuit. Said housing (1) has several solderable bolts (11) on its bottom part (6) for additionally fixing the housing to the printed circuit board (7). Said bolts engage with the continuous contacting bolt holes (12) assigned to them on the circuit board (7) and are soldered in said bolts.
Abstract:
An adapter is interposed between a device (12) having a pattern of pins projecting therefrom and a PCB (13) having contacts connected to various components. The body (11) of the adapter is made of platable dielectric material and is formed with holes (23) corresponding to the pattern of pins of the device (12) and also along one or more edges with pads (26) corresponding in number to the holes (23). The holes (23) are plated with conductive material which may be used to establish electrical contact with the pins (46); however, preferably clips (37) are installed in each hole and in electrical contact therewith, the clips (37) having converging fingers (39) which frictionally engage the pins (46) and also electrically contact the same. Electrically conductive traces (41) are located on the body (11), each having a first end connected to the plating of a hole (23) and a second end leading to one of the pads (26). The traces (41) may be formed by a plate and etch process similar to that used in PCB fabrication. The pads (26) of the body are plated with a material such as solder and are electrically connected to the second ends of the traces (41) opposite the holes. The pins (46) of the device fit into the holes (23) of the body (11) and the plated pads (26) on the body (11) are soldered to contacts on the PCB (13).
Abstract:
A multi-layer circuit board comprised of two or more circuit board substrates (10, 12) shaped by injection molding with mating interconnecting pins (22) and holes (24) and banded together with an electrically insulated adhesive material (28). Circuit leads (14, 16, 18, 20) are provided on both sides of each substrate recessed into channels (85) formed in the surface of the substrate during the molding process. Electrical interconnection of the layers of circuitry occurs where the conductive materials of the circuit leads (14, 16) passes down through component lead holes (26) axially located in the interconnecting pins (22) and around the exterior of the interconnecting pins where contact is made with the conductive material coating on the interior of the interconnecting holes (24). A method of making the multi-layer board includes injection molding the substrates (10, 12) in a suitable shaped mold (74, 76) plating substantially all of the surface of the substrates with the conductive material (82) masking with a plating resist (84), plating again with conductive material (88), removing the plating resist and flash-etching to remove the conductive material (82) initially plated and masked by the plating resist (84) so as to define the circuit leads (14, 16, 18, 20). The preferred method uses a roller to apply the plating resist to some surfaces of the substrates.
Abstract:
Multilayer articles that include electrical circuits are prepared by the adhesive transfer of electrical circuit elements to the surface of an adhesive. A number of different methodologies are used, with all of the methodologies including the use of simple layers of circuit-forming material on a releasing substrate and structuring to generate circuit elements which can be transferred to an adhesive surface. In some methodologies, a structured releasing substrate is used to selectively transfer circuit-forming material, either from protrusions on the releasing substrate or from depressions on the releasing substrate. In other methodologies, an unstructured releasing substrate is used and either embossed to form a structured releasing substrate or contacted with a structured adhesive layer to selectively transfer circuit-forming material.
Abstract:
The present invention generally relates to techniques and structures that permit a CSP RF-MEMS to be assembled without the need for a solder mask. By having a mesa above the substrate, and having the chip soldered to traces on top of the mesa, the traces do not need a solder mask thereover outside of the mesa. If any solder mask is present, the solder mask is present only on top of the mesa and not on the sidewalls of the mesa or on the substrate.