Abstract:
Le dispositif de l'invention comporte un bus (B) constitué de tronçons de largeurs constantes et de longueurs quelconques. La largeur des tronçons du bus varie d'un tronçon à l'autre, le tronçon relié à un émetteur (E) ayant la plus grande largeur. Chaque jonction entre deux tronçons est reliée par une ligne en dérivation (L2 à Ln) à un dispositif électronique (D2 à Dn). Les lignes ont des longueurs quelconques même impédance caractéristique. Le tronçon extrême (B1) du bus est relié à un dispositif électronique (D1). Le tronçon extrême et les lignes sont chargés par une impédance égale à l'impédance caractéristique des lignes. Dans le cas d'une distribution symétrique des signaux, la distribution se fait, à partir d'un émetteur différentiel (E'), par deux bus identiques (B, B') reliés par des lignes différentielles (Ld2 à Ldn) aux dispositifs électroniques (D'2 à D'n).
Abstract:
Cross talk noise sensitivity in a printed circuit net (22) is reduced by routing alongside one another the portions (34B, 38A) of first and second conductors which are adjacent to an intermediate point (18) to which both the first and second conductors are connected. By such routing inter-net cross talk is reduced while the resultant intra-net cross talk is maintained at tolerable levels.
Abstract:
A configuration for routing electrical signals between a conventional electronic integrated circuit (IC) and an opto-electronic subassembly is formed as an array of signal paths carrying oppositely-signed signals on adjacent paths to lower the inductance associated with the connection between the IC and the opto-electronic subassembly. The array of signal paths can take the form of an array of wirebonds between the IC and the subassembly, an array of conductive traces formed on the opto-electronic subassembly, or both.
Abstract:
The invention relates to a laboratory sample instrument (200) with a cable holding space (185) in which a printed circuit board cable device (100) is arranged, more particularly to a dispenser or a pipette. The printed circuit board cable device has at least one printed circuit board (102), which has a first and a second side of the board, and, arranged in succession, at least one first printed circuit board section (A), at least one second printed circuit board section (B) and at least one third printed circuit board section (C), with the printed circuit board having a number of conductor tracks (121,122) which, at least in sections, are arranged parallel with respect to one another on the printed circuit board and extend from a first track section, which is arranged in the first printed circuit board section, via the second printed circuit board section to the third printed circuit board section, in which a second track section is arranged, wherein, in the second printed circuit board section, at least one conductor track (121a, 122a) is arranged on the first side of the board and at least one conductor track (121b, 122b) is arranged on the second side of the board.
Abstract:
A plasma display device includes a chassis base supporting a plasma display panel. A printed circuit board (1217) having a plurality of scan integrated circuits is mounted on the chassis base. Lines of a first flexible printed circuit (119) and of a second flexible printed circuit (219) connect the scan electrodes (32) to the scan integrated circuits. The lines of each of the first and second flexible printed circuits include a first outer line (151; 251) and a second outer line (152; 252) at respective sides of each of the first and second flexible printed circuits, at least one inner line (153; 253) between the first outer line and the second outer line, and at least one dummy line (154; 254) at an outer side of the first outer line. The second outer line (152) of the first flexible printed circuit (119) is connected to the dummy line (254) of the second flexible printed circuit (219).
Abstract:
An end of a first line and an end of a second line of a first write wiring pattern are arranged on both sides of a third line of a second write wiring pattern. Circular connection portions are provided at the ends of the first line and the second line. In addition, through holes are formed in respective portions of a base insulating layer below the connection portions. Each connection portion comes in contact with a connecting region of a suspension body within the through hole.
Abstract:
Provided are a wiring board capable of mounting either a frontside incident type solid-state imaging element and a backside incident type solid-state imaging element and a solid-state imaging device. The wiring board 1 is a wiring board having a to-be-arranged region 1a at which the solid-state imaging element is arranged, and is provided with a plurality of first electrode pads 12 formed inside the to-be-arranged region 1a and a plurality of second electrode pads 13 formed outside the to-be-arranged region 1a, each of which is electrically connected to each of the first electrode pads 12. Further, the solid-state imaging device mounts the backside incident type solid-state imaging element or the frontside incident type solid-state imaging element on the wiring board 1.
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:
An electronics device comprising a carrier, such as a printed circuit board, a substrate or a chip, and an electric conductor on a surface of the carrier. The surface of the conductor (2) facing away from the carrier has a surface structure (3, 4; 6, 7) in the form of flanges which are defined by etched grooves.