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:
A method for propagating a signal from an output driver on a PCB to a number of chips on the PCB. The signal is propagated from a first transmission line connected to the output driver, to a second transmission line connected to the first transmission line and a first chip, and to a third transmission line connected to the first transmission line and a second chip. The second transmission line has a length greater than or equal to 10 times the length of the first transmission line, and the third transmission line has a length greater than or equal to 10 times the length of the first transmission line. The lengths of the first transmission line, the second transmission line, and the third transmission line cause a reduction in reflections of the signal due to a change in impedance at a junction of the first, second, and third transmission lines.
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:
Die vorliegende Erfindung stellt eine Trägervorrichtung (10) für elektrische Bauelemente bereit mit: einer ersten leitfähigen Ebene (23') zum Bereitstellen eines Bezugspotentials (23); und mindestens einer elektrisch von der ersten Ebene (23') isolierten zweiten Ebene (11') mit strukturierten Leitungen (11) zum Anbinden elektrischer Anschlusseinrichtungen (12) externer Bauelemente und zum Anbinden interner Bauelemente auf der Trägervorrichtung (10), wobei die Leitungen (11) zum Anbinden elektrischer Anschlusseinrichtungen (12) externer analoger Bauelemente und/oder Sensoren Bezugspotentialleitungen (16, 17) aufweisen, welche sich an einem ersten Stempunkt (18) sammeln, und die Leitungen (11) zum Anbinden interner Bauelemente Bezugspotentialleitungen (19, 20, 21) aufweisen, welche sich an einem zweiten Sternpunkt (22) sammeln und über mindestens eine Durchkontaktierungseinrichtung (23") mit der ersten Ebene (23') galvanisch gekoppelt sind und/oder die Durchkontaktierungseinrichtung (23") den ersten und/oder zweiten Stempunkt (18, 22) bildet.
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.
Abstract:
A packaging assembly for semiconductor memory modules using synchronous clocking signals distributed to each module within a package. The clock distribution network on the assembly is characterized by including a transmission line termination means, preferably a resistor, coupled immediately adjacent to one of the assembly input pins.