Abstract:
Es wird eine Leiterplatte (5) beschrieben, die aus mindestens zwei in Abformtechnik hergestellten Leiterplatten-Einzellagen (10) aus Kunststoff besteht, die jeweils eine erste und eine zweite Funktionsseite aufweisen sowie mindestens eine mikrostrukturierte Positioniergestaltung (16) auf der ersten und auf der zweiten Funktionsseite und mindestens einen mikrostrukturierten, mit einer Metallisierung (18) versehenen Leitergraben (12) auf einer der Funktionsseiten. Auf diese Weise ist mit geringem Aufwand die Herstellung von Leiterplatten mit hoher Packungsdichte möglich.
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:
A device includes a chip (111), and a resin package (112, 151, 314) sealing the chip, the resin package having resin projections (117, 154, 318) located on a mount-side surface of the resin package. Metallic films (113, 155, 315) are respectively provided to the resin projections. Connecting parts (118, 101, 163, 245, 313, 341, 342) electrically connect electrode pads of the chip and the metallic films.
Abstract:
An electrical connection box for use in a vehicle has bus bars (10, 11) in a casing with upstanding connection tabs (10a, 11a) which are alongside and spaced from each other. Insulation resin embeds the tabs while leaving exposed projecting portions. A connector (20) attached to the casing has a housing (21) containing terminals (7, 8) respectively engaged with the projecting portions of the tabs. The resin material provides a recess (15) located between the tabs (10a, 11a) and the housing of said connector (20) has a partition wall (22) of insulating material which lies between the terminals (7, 8) and extends into the recess (15), to prevent leak current between the terminals.
Abstract:
A substrate (S) with at least two metallized polymer bumps (PS), especially a polymer stud grid array, is configured in such a way that the polymer bumps (PS) have at least one step (ST) and at least one elevation (E). The geometry of the solder bumps (PS) ensures that the soldered connections to the wiring (V) are secure and guarantees reproducible layer thickness for the solder (L).
Abstract:
The invention relates to an electrically conductive unit (1) extending by means of electrically conductive paths (10, 29), which are directly or indirectly applied onto a case (2), for creating a screening against electromagnetic radiation and/or for the draining of electrical currents.
Abstract:
The preferred embodiment apparatus employs an interior trim panel (23) and an electrical harness (25) for use in an automative vehicle. In one aspect of the present invention, the interior trim panel has a generally rigid substrate (27) covered by an aesthetically pleasing covering material (29). In another aspect of the present invention, an electrical harness (25) is provided with integrally created switch contacts (71; 73; 91; 101) and integrally created connector terminals (271). The invention includes an electrical harness (25) made by injection molding a catalytic platable polymeric resin (41) in a first injection mold. Next, a second shot of a non-catalytic polymeric resin (43) is injection molded over portions of the catalytic platable polymeric resin (41) in a second mold. The surfaces of catalytic platable polymeric resin (41) which remain exposed after overmolding of non-catalytic polymeric resin (43) define multiple circuits (45). An adhesion promoter is applied to these exposed circuit areas and then these exposed surfaces are plated with an electroless copper which is attracted to the catalyst in catalytic platable resin (41). The polymeric resins are preferably selected from those having a relatively high heat deflection temperature. The non-catalytic polymeric resin (43) acts as an insulator while the raised and plated portions of catalytic platable polymeric resin (41) act as electricity carrying, conductive circuits or traces (45).
Abstract:
The new structure comprises: an injection moulded three-dimensional substrate (S) made from an electrically insulating polymer; two-dimensionally configured polymer bumps (PS) formed during the injection-moulding process on the underside of the substrate (S); external connections (AA) formed on the polymer bumps (PS) by solderable end surfaces; conducting paths (LZ) at least on the underside of the substrate (S) to connect the external connections (AA) to inner connections (IA1); and at least one chip (C1) mounted on the substrate (S) with connections (CA1) which are electro-conductively linked to the inner connections. The novel structure, which is suitable for single-, few- or multi-chip modules, combines the advantages of a Ball Grid Array with those of MID (Moulded Interconnection Devices) technology, and the manufacture and metallization of the polymer bumps (PS) can be done within the framework of the process steps needed for MID technology and at minimal additional cost.
Abstract:
According to the invention, teeth (Z) are incorporated into a three-dimensional, injection-moulded substrate (S) during the injection moulding process, said teeth being located in the outer edge area and/or in the area of a recess. A metallic coating (M) is then applied to the substrate (S). Extremely finely structured electrically conductive cross connections are produced when said metal coating (M) is removed in the area of the teeth (Z), especially after the teeth (Z) have been ground down or cut off.
Abstract:
A circuit card having module strain relief and heat sink support is provided. The circuit card comprises a printed circuit board having a front and a back, a module mounted to the front of the printed circuit board, and a stiffening structure mounted to the back of the printed circuit card directly opposite from the module to provide rigidity to the printed circuit board. The module has a plurality of electrical leads making electrical connection with the printed circuit board and anchoring the module to the printed circuit board. The stiffening structure is coextensive with the plurality of electrical leads along the printed circuit board, and is of sufficient thickness and strength to resist flexure of an area of the printed circuit board in contact with the stiffening structure in response to shock and vibration applied to the module.