Abstract:
An electronic device includes one or more active or passive electronic components, one or more metal coupons, and a printed circuit board. The one or more active electronic components are mounted on a first side of a printed circuit board while the one or more metal coupons are mounted on a second side of the printed circuit board. The electronic device further includes an adhesive that bonds at least a portion of the metal coupon to the second side of the printed circuit board. A method of making the electronic devices includes the steps of forming a metal coupon into a predetermined shape followed by adhering the metal coupon to a printed circuit board.
Abstract:
A method of fabricating a film carrier is provided. The method comprises the steps of providing a film; forming a metallic layer on the film, patterning the metallic layer by etching to form a plurality of metallic leads; and, patterning the film by etching to form a plurality of openings so that processing time and manufacturing cost are reduced.
Abstract:
A substrate assembly is disclosed including a substrate and a plurality of spring-biased electrical contacts formed thereon for establishing electrical contact with the lead elements of an IC device. The substrate assembly also comprises a layer of resilient conductive material formed on a surface of the substrate, the spring-biased electrical contacts being formed in the resilient conductive material layer in situ on the substrate. Each spring-biased electrical contact includes a surface or surfaces configured to bias against and electrically contact an IC device lead element. The present invention also encompasses methods of fabricating substrate assemblies according to the invention, including heat treating the substrate assembly after formation to achieve desired spring characteristics.
Abstract:
Curved out of plane metal components are formed on PCB substrates (11) by electroplating two layers (13, 14) of the same metal such that each layer has a different internal stress. This produces as curvature of the layer (13, 14) which enables coils, curved cantilever beams and springs to be fabricated. The amplitude and direction of curvature can be controlled by controlling the stress and thickness of each layer. The stress is controlled by controlling the composition of the electroplating bath.
Abstract:
A light emitting diode (LED) assembly has a printed circuit board, multiple conductors and multiple light emitting diodes (LEDs). The printed circuit board has multiple mounting holes. The conductors are mounted on the PCB and serve respectively as positive electrode conductors and negative electrode conductors. Each conductor has a contact pin and at least one through hole with an inner edge. Each LED is mounted on the positive electrode conductor and the negative electrode conductor and has a die and two contact tabs. Each contact tab has a through hole having an inner edge and multiple hooks extending from the inner edge of the through hole in the contact tab and hooking the inner edge of the at least one through hole in the conductor. Consequently, neither solder nor welding is required to assemble the LED assembly.
Abstract:
In the direct current cut structure of the present invention, two capacitors are provided in parallel between signal transmission line patterns facing each other on a substrate, and each of the two capacitors is electrically connected to each surface of each transmission line pattern that is exposed through a hole part provided on the substrate. It is preferable for the two capacitors to have different capacity. If there is no need to cover such a broad band, only one capacitor can also connected to either side of each transmission line pattern exposed through the hole part.
Abstract:
A connection structure is between bus bars and relay terminals in an electrical connection box to be mounted on an automobile. Each bus bar is produced by punching an aluminum-based metal plate into a desired circuit configuration. An end of each bus bar is bent so that the end is connected to each respective relay terminal. Each bus bar end is welded to the respective relay terminal. Connection parts between the bus bars and the relay terminals are embedded in a molded insulation. Alternatively, grease is applied to and fills in exteriors and clearances of the connection parts.
Abstract:
A power circuit section including a plurality of bus bars is disposed through an insulation layer on a circuit arrangement surface of a heat radiation member. An end of each of the bus bars is folded up from the circuit arrangement surface to form an external connection terminal. An enclosure wall member that surrounds the power circuit section including the external connection terminal is disposed on the heat radiation member. A connector housing contains an external connection connector that comprises a bottom portion provided with terminal, a through-hole into which the external connection terminal is inserted, and a hood that surrounds the external connection terminal. The external connection connector can be coupled to another connector together with the external connection terminal. A waterproof layer is formed within the enclosure wall member so that at least a part of the power circuit section is sealed and the terminal through-hole is sealed.
Abstract:
A method for interconnecting flat cable is disclosed. The flat cable has a plurality of conductors attached to an insulating layer. The method includes removing an insulation layer from a first and second flat cable portions to expose the plurality of conductors, applying a thermal plate to the exposed plurality of conductors of the first flat cable portion, applying solder to first flat cable portion, placing the plurality of conductors of second flat cable portion over the plurality of conductors of first flat cable portion having applied solder, applying a transparent plate over the first and second flat cable portions, scanning a laser beam through the transparent plate to reflow the solder between the first and second flat cable portions.
Abstract:
A microelectronic interposer is made by providing a sacrificial layer over the surface of a planar body. Apertures are formed passing through the body and the sacrificial layer. A layer of an electrically conductive structural material is deposited in each of the apertures and over the sacrificial layer, proximate to each aperture to thereby form contacts. The sacrificial layer is removed leaving the contacts with outwardly flaring peripheral portions spaced vertically above the surface of the planar body.