Abstract:
A circuit board includes an electrically conductive sheet having an insulative coating surrounding the conductive sheet, with a surface of the insulative coating around an edge of the conductive sheet having an arcuate or rounded shape. At least one electrical conductor is conformally deposited on at least the rounded insulative coating around the edge of the conductive sheet and defined via photolithographic and metallization techniques. Each electrical conductor on the insulative coating thereon around the edge of the conductive sheet conforms to the arcuate or rounded shape of the insulative coating and, therefore, has an arcuate or rounded shape.
Abstract:
A transmission board (10) comprises a frame body (30) and a surface board (20) supported by the frame body (30) and having a transmission circuit. The frame body (30) has plugging edges (33, 34) that project from the edges of the surface board (20) for guiding the terminals of mating connectors to connection pads on the surface board (20). The plugging edges have guiding slopes 33A and 33B, and 34A and 34B. At least the plugging edges of the frame body (30) are made of a metal or resin molding.
Abstract:
Methods and apparatuses for shaping a corner of a printed circuit board are disclosed. An apparatus in accordance with one embodiment includes a carrier configured to releasably contact a printed circuit board, a curved contact surface positioned to roll against a corner of the printed circuit board. Optionally, another curved contact surface can be positioned to roll against another corner of the printed circuit board. The contact surface can be rotatable relative to the carrier about a rotation axis that is generally parallel to at least a portion of the curved contact surface. The contact surface can be continuous or discontinuous, and can shape the corner of the printed circuit board with a reduced tendency for damage to the printed circuit board. Multiple contact surfaces can be rotatable about different rotation axes.
Abstract:
The invention relates to a circuit carrier and a method for producing it, the circuit carrier having a substrate with two oppositely arranged areas. The terminal contacts of a flat connector strip are arranged in the edge regions of the areas. A through contact is arranged under at least one of the terminal contacts with concealed electrical connection to the rear side of the terminal contact and the top side of the terminal contact exhibits an undisturbed morphology and planar surface.
Abstract:
In one embodiment, a plurality of thickfilm dielectric layers are printed on a substrate, with each successive layer being printed over a previous layer, and with each layer having sloped walls. After printing a first subset of the plurality of thickfilm dielectric layers, a first conductive thickfilm is printed over at least the walls of the first subset of dielectric layers. Then, after printing a second subset of the plurality of thickfilm dielectric layers, a second conductive thickfilm is printed over the second subset of dielectric layers (with the first and second conductive thickfilms being electrically coupled).
Abstract:
A connector pad is provided having a base, a top opposite the base, and tapered sidewalls therebetween. The tapering minimizes stress concentrations when the connector pad is bonded into, or on the surface of a structure. The connector pad consists of a plurality of structural load carrying plies suitable for sandwiching a flat structurally integrated wiring array therebetween. A plurality of plated through holes formed in the connector pad enable access to the wiring array therein.
Abstract:
The present invention provides an electronic device comprising a base substrate to be surface-mounted on a circuit board, one or more electronic component elements mounted on a surface of the base substrate and/or therein, an external electrode provided on an end portion of the base substrate and in the form of a post perpendicular to a rear surface of the base substrate for connecting the one or more electronic component elements to the circuit board. Furthermore, the base substrate is provided on its end portion with a slope crossing a side surface and a rear surface of the base substrate. A surface of the external electrode is exposed on the slope.
Abstract:
A semiconductor device comprises a semiconductor element and electrodes electrically connected to the semiconductor element, the semiconductor element and the electrodes being sealed by a sealing agent having an insulating property, the electrodes being exposed around a mounting surface that is joined via a joining agent to an external mounting circuit board, wherein the electrodes are shaped so that the joining agent is visually identifiable from side surfaces surrounding the mounting surface when the mounting surface is joined via the joining agent to the mounting circuit board.
Abstract:
A connector pad is provided having a base, a top opposite the base, and tapered sidewalls therebetween. The tapering minimizes stress concentrations when the connector pad is bonded into, or on the surface of a structure. The connector pad consists of a plurality of structural load carrying plies suitable for sandwiching a flat structurally integrated wiring array therebetween. A plurality of plated through holes formed in the connector pad enable access to the wiring array therein.
Abstract:
A liquid crystal display includes a liquid crystal panel having a plurality of pads, a printed circuit board, a tape carrier package electrically interconnecting the liquid crystal panel and the printed circuit board, an electrode lead portion formed on a rear surface of the tape carrier package, an anisotropic conductive film connected to at least one of the plurality of pads of the liquid crystal panel and formed at a first side of the electrode lead portion, and a solder resist formed at a second side of the electrode lead portion and contacting the anisotropic conductive film.