摘要:
A three-dimensional multi-layer molded electronic device and method for manufacturing same, wherein the device comprises at least two molded, three-dimensional substrates having mating surfaces, each substrate including a layer of patterned conductive material on at least one surface and electrically conductive vias at selected locations of the substrate for interconnection of the conductive layers, wherein the substrates are electrically joined at their mating surfaces and the circuit layers are aligned and interconnected to form a multi-layer, three-dimensional circuit which may include molded-in structural features.
摘要:
A three-dimensional multi-layer electronic device and method for manufacturing same, wherein the device comprises a three-dimensional substrate including a conductive trace on at least one surface of the substrate, a thin layer of dielectric material substantially covering a desired portion of the conductive trace(s) on the substrate, the dielectric layer including vias at selected locations, and applying a coating of conductive material on the dielectric layer and in the vias, and defining a conductive trace in the material to thereby form a multi-layer, interconnected three-dimensional electronic device. Additional layers of dielectric material and conductive traces may be similarly applied to create the desired number of circuit layers. Molded-in structural features, and/or vias may be defined in the appropriate layers to accommodate the attachment and/or interconnection of other electronic devices to the device.
摘要:
A circuit board assembly is disclosed comprising a pair of three-dimensional substrates having integral, metallized connectors. The connector of the first substrate protrudes therefrom, while the connector of the second substrate is recessed therein. The geometries of the protruding connector and the recessed connector are different such that they deform when assembled to provide an electrical connection and a detachable physical connection. In one embodiment, the recessed connector has a parabolic cross-section and the protruding connector has a circular cross-section. A flexible molded edge connector for the circuit board assembly is also disclosed.
摘要:
An apparatus is provided for securing electronic devices in a vehicle. A ventilation duct is provided beneath the instrument panel for conveying air in the vehicle. The ventilation duct includes an outer surface. An overlay substrate is laid upon and secured against the outer surface or acts as the wall of the duct, and is adapted for carrying electronic devices thereon. This design improves packaging efficiency within the vehicle. This invention can also be applied to other automotive applications such as on door panels, instrument panels and package trays.
摘要:
An apparatus is provided for both conveying air and for housing electronic devices in a vehicle. The apparatus comprises a molded ventilation duct with a parallel housing secured to the duct for housing electronic devices. The housing is molded integrally with the duct and metallized with electronic circuitry and devices. This design improves packaging efficiency underneath the vehicle instrument panel.
摘要:
A method of supporting an electrical circuit on an electrically insulative base substrate comprises embossing a first circuit pattern on the substrate, and plating or etching a second circuit pattern over the first circuit pattern such that the first and second circuit patterns are in physical contact with each other for electrical communication therebetween. Plated through-holes are provided for facilitating support of a twisted pair of electrical conductors on a base substrate.
摘要:
A fully additive method of applying a circuit pattern to a three-dimensional, nonconductive part comprises: pretreating the surface of the part; pad-printing a surface catalyst in a solvent carrier onto the surface in the shape of a desired circuit pattern; and applying an electroless copper deposit onto the surface catalyst, thereby providing a copper layer on the surface in the desired circuit pattern shape.
摘要:
A method of attaching a flexible plastic film having electronic circuit traces to a rigid plastic substrate. The film and substrate are made from different incompatible plastic materials that do not bond to one another and have different CTE. The use of different or incompatible materials is useful where the properties of the backing structure and film are selected to achieve different results. For example, the flexible film may be selected from a material that provides a high melting point to withstand soldering while the backing material is selected from a low-cost and light weight plastic material that has a lower melting point. The film has conductive traces on at least one surface thereof and a backing surface. A heat activated adhesive is applied to the backing surface. The film is placed within an open injection mold and the mold is closed. A hot plastic resin is injected into the mold adjacent the adhesive. The resin heats the adhesive above its activation temperature and causes the adhesive to bond to both the backing surface and the plastic resin. The resin is allowed to cool and the finished circuit assembly is removed from the mold.
摘要:
A method for making multi-layer electronic circuit boards 64 having “blind” type apertures 28, 30 which may be selectively and electrically grounded and further having selectively formed air bridges and/or crossover circuits 45, 46.
摘要:
A circuit board includes a substantially non-conductive substrate and first and second rigid sheets. The first sheet forms a grid pattern substantially encapsulated by the substrate, and a portion of the first sheet extends beyond a boundary of the substrate to form a first interconnection terminal. The second sheet is also substantially encapsulated by the substrate and has a portion which extends beyond the boundary of the substrate to form a second interconnection terminal. The second sheet acts as an electromagnetic interference shield, and also has a coefficient of thermal expansion less than a coefficient of thermal expansion of the substrate.