Abstract:
An appliqué for forming a surface coating to a substrate is disclosed. The appliqué contains a sectioned metal foil that provides a large area electrical circuit for connecting electrical devices. The appliqué may provide additional functions including lightning strike protection. The substrate may be an aircraft surface.
Abstract:
An illumination assembly includes a compliant substrate comprising a first and second electrically conductive foil separated by an electrically insulating layer. The insulating layer includes a polymer material loaded with particles that enhance thermal conductivity of the insulating layer. A plurality of LED dies are disposed on the first conductive foil.
Abstract:
A power converter including a printed circuit board (PCB) having a plurality of heat conductive layers configured to sink heat generated by the power converter electronics. Each of these heat conductive layers are comprised of thermally conductive material configured as planar sheets, each of these heat conductive layers being coupled to at least one wire to sink heat therefrom, such as via a wire of an input cable and/or output cable. Advantageously, a more compact power converter is realized having improved power output while operating within safety guidelines.
Abstract:
A mask for producing a printed circuit board is defined in which the conductor elements of the printed circuit pattern are delineated by a constant width etch band (20). This means that all conductors (3a, 3b, 9) are separated from neighboring areas of conductive material (22) by the same distance. Thus etch rates across the printed circuit pattern do not vary according to the separation of the conductors (3a, 3b, 9).
Abstract:
A method for manufacturing printed circuit boards has a double etch process to form interconnection wiring. A metal layer is formed on the substrate. An etch resist layer is applied to the metal layer. The layer is selectively removed to allow for selective etching of the metal layer. A second etch resist layer is applied to the metal layer not previously etched. The side walls of the metal layer are also protected by the resist. The second etch resist layer is then selectively removed to allow for a second etching of the metal layer. After the second etching, the interconnection wiring remains in the desired pattern. The second etch resist layer, which may be tin, can be left on the wiring to improve component soldering.
Abstract:
A process for providing a dielectric substrate with a composite surface comprising a metal plated portion side-by-side an unplated portion. The process includes: depositing a metallic film over the surface of the substrate; removing a narrow band of the film to electrically isolate one portion of the film from another; immersing the substrate in an electroplating bath capable of dissolving the film; cathodizing one of the film portions in the bath to electroplate that portion while the other portion dissolves therein to expose the underlying substrate. The thusly exposed substrate may subsequently be painted.
Abstract:
A process for manufacturing an electronic component having attaches includes providing a first component having a first attach, forming trenches on a portion of the first attach with a laser to form a solder stop, and providing a second component comprising a second attach. The process further includes providing solder between the first attach and the second attach to form a connection between the first component and the second component, where the trenches contain the solder to a usable area. A device produced by the process is disclosed as well.
Abstract:
A surface mounted light emitting device having superior reliability with a focus on low cost producibility, in which a protective element can be formed without lowering the efficiency of light emission from a light emitting element, is provided.Since, for example, a printed resistance 16, as a protective element, is formed on at least the top surface side, the back surface side, or the inside of an insulating film 2 and, for example, the printed resistance 16, as a protective element, is formed on the rear surface side of the installation surface of a light emitting element 11, light emitted from the light emitting element 11 is not obstructed due to light blocking, light absorption or the like by, for example, the printed resistance 16, as a protective element.