Abstract:
Disclosed are electrical connectors and methods of assembling an electrical connector having "standard" (i.e., with electrical contacts having in-line tails), jogged (i.e., with electrical contacts having jogged tails but not connected orthogonally to another connector through a substrate), and/or "orthogonal" (i.e., with electrical contacts having jogged tails that are used in an orthogonal application) leadframe assemblies in the same connector. This provides the flexibility of using some of the available contacts in an orthogonal application and, at the same time, having remaining contacts available for routing on the midplane PCB.; Though this could be done using only orthogonal leadframe assemblies, the combination of standard leadframe assemblies with orthogonal leadframe assemblies creates additional spacing between the PCB vias, so that signal traces can be more easily routed on the midplane PCB.
Abstract:
Enlarged spacing is provided between rows of vias in a ball grid array (BGA) multilayered printed wiring board land pattern in which the lands in the pattern are connected to the vias by a link connector by rotating, elongating, and/or truncating selected consecutive link connectors and rotating their respective corresponding vias in a row or column or selected consecutive rows or columns to achieve the enlarged spacing between rows or columns of vias in the BGA land pattern. Enhanced spacing between selected grid columns or rows of vias is provided such that some of the grid pitches for the vias are equal to that of the standard BGA and at least some are of a greater grid pitch.
Abstract:
Es wird eine elektrische Vorrichtung mit einem Trägerelement (11), insbesondere einer Leiterplatte, vorgeschlagen. Diese Vorrichtung weist zumindest eine auf dem Trägerelement (11) angeordnete Anschlussfläche (16) auf, die zur Kontaktierung eines Bauelements (50) dient. Die Öffnung ist dadurch gekennzeichnet, dass die benetzbare Anschlussfläche (16) jeweils aus zumindest zwei Teilflächen (28, 31) besteht, wobei eine der Teilflächen (28) schmaler als die andere Teilfläche (31) ist.
Abstract:
Die Erfindung betrifft ein Trägerelement zur Befestigung und elektrischen Verbindung einer oder mehrerer Leuchtdiodeneinheiten (20,75), insbesondere eine Leiterplatte, mit einer oder mehreren Montagestellen für jeweils eine Leuchtdiodeneinheit, wobei jede Montagestelle eine oder mehrere Kontaktstellen zur elektrischen Verbindung mit der Leuchtdiodeneinheit aufweist, die in elektrischer Verbindung mit Leiterelementen des Trägerelements stehen, wobei eine Leuchtdiodeneinheit an einer Montagestelle derart verdrehsicher befestigbar ist, daß ein elektrischer Kontakt zwischen einem oder mehreren Kontaktelementen der Leuchtdiodeneinheit mit einer oder mehreren Kontaktstellen (11a,11b,13a,13b) des Trägerelements hergestellt wird, welches dadurch gekennzeichnet ist, daß die Leuchtdiodeneinheit an einer Montagestelle in mehreren gegeneinander verdrehten Stellungen derart befestigbar ist, daß eines oder mehrere ihrer Kontaktelement jeweils mit einer oder mehreren Kontaktstellen (11a,11b,13a,13b) der Montagestelle in elektrischer Verbindung stehen. Gemäß einem weiteren Aspekt betrifft die Erfindung ein Trägerelement, bei dem ein optisches Bauelement (80,85) zum Zusammenwirken mit einer Leuchtdiodeneinheit (20) in mehreren Positionen befestigt werden kann, die sich jeweils aus einer anderen Position durch Drehen des optischen Elements um eine Achse ergeben. Die Erfindung stellt weiterhin eine Leuchte zur Verfügung, welche ein oder mehrere derartige Trägerelemente aufweist, sowie ein Verfahren zum Bestücken eines solchen Trägerelements.
Abstract:
A chip component mounting structure and a chip component mounting method are disclosed that are adapted to increase the chip component mounting density. In the chip component mounting structure, an LED is surface-mounted on a signal electrode and a common ground electrode formed on a substrate. The areas of the signal electrode and the common ground electrode are different, and the LED is bonded to the signal electrode and the common ground electrode using a conductive adhesive (21).
Abstract:
A semiconductor device includes a wiring pattern formed on a board, and a semiconductor chip bonded to the wiring pattern by ultrasonic welding. The wiring pattern is formed such that when the semiconductor chip is disposed on the wiring pattern, a range shared between the wiring pattern and positional variation regions of portions to be bonded of the semiconductor chip accompanied by the ultrasonic welding becomes as wide as possible. Such a semiconductor device makes it possible to ensure a sufficient positional deviation range of a wiring pattern with respect to a positional deviation in each bump type electrode, and hence to cope with a multipin structure for flip-chip mounting and to improve both an initial bonding characteristic and a mounting reliability.
Abstract:
Two pairs of diagonally linked squares with rounded edges are used as fixed contacts in the production of keyboards. A direct connection is ensured in the diagonal direction; the squares consist of conductive lacquer (carbon lacquer) and cover copper pads on a printed circuit board.
Abstract:
A printed circuit board assembly includes two-dimensional arrays of connectors (14,16) to provide significantly higher data transfer rates than typical one-dimensionally arranged connectors, without sacrificing board space. The assembly includes a plurality of connection pads (14,16) on each printed circuit board (10,12). A layer of anisotropically conducting material (26) is placed between the connection pads and the boards are held together by fastening screws (28).
Abstract:
A novel packaging system for VLSI circuits allows low-cost construction and maintenance of complex high density high-performance devices with low power requirements. The devices can be individually created by software means from a small selection of standardizable IC chips by disposing a plurality of chips in leadless chip carriers in a mosaic on a substrate, and configuring them by software to selectively communicate with other chips of the mosaic or even to individually change their operating function. The immediate juxtaposition of the chip carries in the mosaic eliminates transmission line data skew, and also allows considerable savings in chip space and power requirements by dispensing with interconnection drivers, receivers and bonding pads. The chip carrier mosaics may be assembled into modules suitable for plug-in connection to an interconnecting backplane to create even larger devices, and individual modules can be dynamically tested in their high-performance mode by configuring one or more modules as test modules and either plugging them into modules to be tested or making them a permanent part of the device's module array.
Abstract:
The present invention pertains to a submount (1) for mechanically and electrically coupling an electronic component (4) to a carrier (6). The submount (1) has a mounting portion (10) for mounting the submount to the carrier and has attachment portions (12a, 12b, 12c, 12d) for holding the electronic component. The submount further has primary electric contacts (14a, 14b) for cooperation with respective electrical conductors (61a, 61b) in the carrier, and secondary electric contacts (16a, 16b, 16c) for cooperation with respective electric contacts of the electronic component. The secondary electric contacts are electrically connected to primary electric contacts. The attachment portions are coupled to the mounting portion by respective extension portions (18a, 18b, 18c) that are laterally stretchable in a plane defined by the mounting portion to allow a displacement of the attachment portions in a direction away from the mounting portion.