Abstract:
This invention relates to the field of lighting modules employing light emitting diodes (LEDs), and more particularly to LED modules suitable for exposed lens plate luminaires. There is herein provided an LED module having a printed circuit board comprising at least two layers, wherein the interface between two layers at a side surface of the printed circuit board is covered by a protrusion of an optically transmissive cover plate. The same said optically transmissive cover plate is also adapted to cover at least one LED positioned in or on the printed circuit board.
Abstract:
There are provided a multi-piece-array in which it is difficult for chipping, cracking, or breaking to occur from the vicinity of dividing grooves at the time of division or after division and which has high reliability, and a method of manufacturing the multi-piece-array. A multi-piece-array 1 is formed by laminating a plurality of ceramic layers s1 and s2 and has a front surface 2 and a back surface 3. The multi-piece-array 1 includes a product region 4a where a plurality of wiring board portions 4 having a rectangular shape in plan view and including cavities 5 are arranged in a matrix, an edge portion 6 that is positioned along the periphery of the product region 4a, and dividing grooves 8 and 9 that are formed on at least one of the front surface 2 and the back surface 3 along boundaries between the wiring board portions 4 and 4 and boundaries between the wiring board portions 4 and the edge portion 6. The deepest portions 8b of the dividing grooves 8 and 9 have an arc shape and each of the dividing grooves 8 and 9 includes a middle portion 8a between the deepest portion 8b and a groove inlet 8c on a cross-section orthogonal to an extending direction. The width w2 of the deepest portion 8b is greater than the width w3 of the groove inlet 8c and the width w1 of the middle portion 8a is equal to or less than the width w3 of the groove inlet 8c.
Abstract:
Die Erfindung betrifft eine bandförmige Leuchtmittelvorrichtung (1), eine Lampe (12) mit wenigstens einer solchen bandförmigen Leuchtmittelvorrichtung (1) und ein Verfahren zum Herstellen der bandförmige Leuchtmittelvorrichtung (1). Die bandförmige Leuchtmittelvorrichtung (1) für eine Lampe (12), insbesondere LED-Lampe, weist auf: Wenigstens einen ersten Abschnitt (5, 5') und wenigstens einen zweiten Abschnitt (6, 6'), wobei der erste Abschnitt (5, 5') gegenüber dem zweiten Abschnitt (6, 6') eine reduzierte Biegesteifigkeit aufweist, wobei die bandförmige Leuchtmittelvorrichtung (1) in dem wenigstens einen ersten Abschnitt (5, 5') mit der reduzierten Biegesteifigkeit derart gebogen ist, dass eine ebene Ausgangsform der bandförmigen Leuchtmittelvorrichtung (1) eine dreidimensionale Endform annimmt.
Abstract:
There are provided a multi-piece-array in which it is difficult for chipping, cracking, or breaking to occur from the vicinity of dividing grooves at the time of division or after division and which has high reliability, and a method of manufacturing the multi-piece-array. A multi-piece-array 1 is formed by laminating a plurality of ceramic layers s1 and s2 and has a front surface 2 and a back surface 3. The multi-piece-array 1 includes a product region 4a where a plurality of wiring board portions 4 having a rectangular shape in plan view and including cavities 5 are arranged in a matrix, an edge portion 6 that is positioned along the periphery of the product region 4a, and dividing grooves 8 and 9 that are formed on at least one of the front surface 2 and the back surface 3 along boundaries between the wiring board portions 4 and 4 and boundaries between the wiring board portions 4 and the edge portion 6. The deepest portions 8b of the dividing grooves 8 and 9 have an arc shape and each of the dividing grooves 8 and 9 includes a middle portion 8a between the deepest portion 8b and a groove inlet 8c on a cross-section orthogonal to an extending direction. The width w2 of the deepest portion 8b is greater than the width w3 of the groove inlet 8c and the width w1 of the middle portion 8a is equal to or less than the width w3 of the groove inlet 8c.
Abstract:
The present invention provides thin-laminate panels (i.e., thin-laminate panels (2) having dielectric layers (8) about 0.006 inches (0.15 mm) or less and conductive layers (6) on either side of the dielectric layer (8)), wherein the edges of the dielectric layers of the panels are free of conductive material, such as copper. The thin-laminate panel is designed to provide necessary capacitance for all or a substantial number of the integrated circuits to be formed thereon. The thin-laminate panels of the present invention may be tested for manufacturing defects, such as short circuits, before further processing of the panels to produce PCBs. 'Finishing' methods for shearing sheets of unfinished thin-laminate into the finished thin-laminate panels of the present invention in a manner that does not cause smearing of the conductive material onto the dielectric layer are also provided.
Abstract:
La présente invention concerne l'interconnexion de deux dispositifs électroniques (2 et 3), par l'intermédiaire d'un dispositif d'interconnexion (1). Selon l'invention, le dispositif d'interconnexion (1) comporte des rainures métallisées (17, 18) dans son chant, chacune en liaison électrique avec un de ses contacts inférieurs (15). Des doses de soudure (20), partiellement logées dans les rainures (17, 18), assurent la fixation du dispositif d'interconnexion (1) sur le dispositif électronique (3), ainsi que les liaisons électriques entre les dispositifs (1 et 3).
Abstract:
Dans ce composant (10), une puce comporte un microsystème réalisé notamment par dépôt, photolithographie et micro-usinage de couches successives. Le microsystème comporte une pluralité de plots de liaison électrique (16). La puce est pourvue d'un enrobage externe (20) pour permettre son report sur un substrat (28). Cet enrobage porte en surface une pluralité de métallisations externes (22) reliées électriquement, au travers du matériau d'enrobage, aux plots de la puce situés en vis-à-vis et noyés dans l'épaisseur du matériau d'enrobage. Le composant enrobé a dans le sens de la longueur et de la largeur sensiblement les mêmes dimensions que celles de la puce avant enrobage. L'enrobage n'est formé que sur une partie réduite de la puce, essentiellement dans la région des plots et des métallisations, la partie non enrobée étant une partie sensible du microsystème, préservée des contraintes mécaniques engendrées par l'application et le durcissement du matériau d'enrobage.
Abstract:
A method for electrically connecting planar element substrates (12) to form an array (10) by forming conductive bridges (16) between metal pads (14) located on the surface of array elements (12). The conductive bridges (16) are formed to be nearly coplanar with the planar elements (12) and are made to connect the end faces (14b) of pads (14) which are fused to the planar substrate (12). Metal wire (16a), solder (16b-c), a conductive polymer (16d), or a suspension of conductive particles in paste (16e) are used to form the bridges. The bridges (16) have a low profile, occupy a very small area and reduce the need for highly accurate alignment of adjacent substrates (12) within the tiled array (10) before electrical connections are formed. These low profile bridges (16) are especially advantageous tn that they allow a protective plastics or similar cover sheet, or a liquid crystal laminate, to be surface mounted on the adjacent array (10) without causing detrimental surface blemishes or ridges. The small area of the bridges (16) greatly reduces the non-transmitting area of the visual display. The bridges (16), being substantially narrower than the pads (14) which they connect, are more likely to connect the intended pads (14) and less likely to "short" pads (14) which are not in accurate alignment.