Abstract:
Two electronic components having fine pitch arrays of terminals can be disconnectably interconnected by a multiple electrical connector that includes a pair of intermeshable members (22). Each of those members (22) has an electrically insulative body (23) with a structured surface including a plurality of tapered elements (26). Tapered sides of those elements (26) fit flush against each other when the two members (22) intermesh, and the members become strongly adhered to each other when the tangent of the half angle β of said tapered sides is no greater than the coefficient of friction of the material of the contacting surfaces. Each of the members (22) has a plurality of electrically conductive segments 15A, 15B in position to make good electrical contact when the members (22) intermesh.
Abstract:
Deux composants électroniques présentant des réseaux à pas fins de bornes peuvent être interconnectés de manière déconnectable par un connecteur électrique multiple comprenant une paire d'éléments (22) interconnectables. Chacun de ces éléments (22) présente un corps isolant (23) présentant une surface structurée comprenant une pluralité d'éléments coniques (26). Les faces coniques de ces éléments (26) s'emboîtent de manière affleurante l'une contre l'autre lorsque les deux éléments (22) s'interconnectent, et lesdits éléments sont fortement collés l'un à l'autre lorsque la tangente du demi angle beta desdites faces coniques n'est pas supérieure au coefficient de frottement du matériau des surfaces de contact. Chacun des éléments (22) présente une pluralité de segments électroconducteurs (15A, 15B) en position pour assurer un bon contact électrique lorsque les éléments (22) s'interconnectent.
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.
Abstract:
The invention concerns an apparatus of chamfering edges of planar plates, particularly of printed wiring boards. According to the invention the plates are stacked in a first step and then chamfered in such a manner that the lower edge of an upper plate and the upper edge of a lower plate are chamfered simultaneously.
Abstract:
Die Erfindung betrifft ein Verfahren zur Aufteilung einer kontinuierlich hergestellten metallkaschierten Laminatbahn (13) kommisionsweise in einzelne Platten (15) in beliebiger Grösse mittels Rechnereinsatz und einer Säge. Die zugehörige Vorrichtung besteht aus einer durch den Rechner bahngesteuerten NC-Säge (14), deren im Sägekopf (47) befindliches Sägeblatt (31) entlang den Schnittkanten eine Seitenabstützung besitzt. Diese Seitenabstüztung enthält Schneidenplättchen (37a,b), die mit einer Seitenfläche unter leichtem Druck an das Sägeblatt (31) angelegt sind und mit einer weiteren schmalen Kantenfläche die Schnittkante auf der metallkaschierten Laminatbahn (13) abstützten. Zur Besäumung des drucklos ausgehärteten Pressrandes sind vor dem Sägekopf am Rande der metallkaschierten Laminatbahn feststehende Kreissägen mit einer Seitenabstützung des Sägeblatts angeordnet.
Abstract:
@ A series of first parallel printed contacts extends inward from a beveled first end of a card. Conductors extend over the surface on ends of the contact and are electrically connected together and with large contact terminals at the ends of the parallel series of contacts. A second parallel series of contacts extends inward from the beveled first edge on the second side of the card, and conductors are looped around each other and individually terminate in a triangular array of connectors which extend through the card to make electrical contact with the first conductors on the first surface. Large end contact terminals are provided at ends of the second series of contact. Adhesive-backed covers cover the conductors and connectors and inner portions of the contacts and terminals. The first conductors and second conductors are so arranged that large sections of each conductor in one group of conductors do not overlie conductors on the opposite side of the card. Holes can be punched through the card in selected locations to selectively interrupt conductors on one side of the card without interrupting conductors on the opposite side of the card.
Abstract:
The present invention relates to a circuit board (2) comprising at least one electrical connection arrangement (12, 13; 14, 15) that is arranged to be electrically connected to a corresponding electrical component (4) when said electrical component (4) is mounted to the circuit board (2). The circuit board (2) comprises at least one aperture (11, 11', 11''), where, for at least one of said electrical components (4), a corresponding aperture (11, 11', 11") is arranged to receive said electrical component (4). Then, a part of the electrical component (4) rests in the aperture (11, 11', 11'') when the electrical component (4) is mounted to the circuit board (2).