Abstract:
Disclosed are a compatible circuit and a terminal. The compatible circuit comprises a printed circuit board (PCB) of which the existing structure is not changed, and a group of compatible devices which are in a pin-to-pin form and have different internal structures, wherein the compatible devices and the PCB are assembled together; the internal structures of the compatible devices are matched with a link compatibility selection requirement; and the compatible devices are configured to conduct link selection output on at least two links which are input and need compatibility, in accordance with the link compatibility selection requirement.
Abstract:
L'invention se rapporte à un circuit imprimé flexible (10, 200) de forme longitudinale, comprenant au moins une piste conductrice (101, 201, 202, 203) s'étendant sur la longueur du circuit imprimé flexible, le circuit imprimé flexible comprenant au moins une zone de pliage (105, 205) conformée pour autoriser le passage dudit circuit imprimé flexible d'un état déplié à un état plié dans lequel la piste conductrice forme au moins une boucle d'antenne.
Abstract:
Provided is a flexible substrate wherein a connection portion between the flexible substrate and an electric circuit board meets requirements of narrow wiring pitch and low resistance at the connection portion. An electric circuit structure, which has the flexible substrate and the electric circuit board to which the flexible substrate is connected, is also provided. A wiring pattern (22) is formed on a flexible base film (21), a connection terminal (25) connected electrically to an electrode terminal of another electric circuit board is arranged at an end portion of the wiring pattern (22), and the connection terminal (25) includes wide connection terminals (25b, 25c) having a terminal width extending across plural lines of the wiring pattern (22).
Abstract:
A package substrate (231) incorporating a build-up substrate having at least one structure in which a conductor layer and interlayer resin insulating layer are alternately laminated such that a conductive connecting pin (110) for establishing the electrical connection with another substrate is secured to said build-up substrate. Said package substrate comprises a pad (16) for securing said conductive connecting pin (110), wherein said pad (16) is covered with an organic resin insulating layer (15) having an opening (18) and connected to an inner conductor layer through a via hole, and said conductive connecting pin (110) is secured to said pad exposed to the outside through the opening through a conductive adhesive agent (17) formed in the opening.
Abstract:
Provided is a multilayer printed wiring board (1) in which multiple via holes (4 to 7) that connect a first power supply wiring (2) with a second power supply wiring (3) are aligned in a line in parallel to a direction along which current flows. In order to prevent current from being concentrated on the via hole (4) connected to a farthest end of the power supply wiring (2) among the via holes (4 to 7), a narrow portion (8) between the via hole (4) and the via hole (5) is narrowed to increase a resistance. A narrow portion (9) that is narrowed is disposed similarly at a farthest end of the power supply wiring (3) of the second conductor layer.
Abstract:
L'invention concerne un procédé de positionnement d'un circuit intégré (3) du type dit à montage en surface, notamment du type "D 2 PAK-7", et de soudure sur un substrat à plages métallisées isolées (50 à 52). Typiquement les plages métallisées isolées sont en cuivre et ont une épaisseur supérieure ou égale à 50 microns. La distance séparant (L 7 ) les plages métallisées sous-jacentes aux broches de grille (31) et de première source (32) étant critique, cette distance est rendue égale à celle séparant les deux broches (31, 32). Pour pouvoir opérer un positionnement et un alignement optiques des broches (31 à 33, 35 à 37) par rapport aux plages métallisées (50 à 52), on dépose entre les paires de broches des bandes (40 à 43) de vernis isolant formant repères d'index.
Abstract:
Die Erfindung schlägt vor, Steckelemente wie Schaltelemente, beispielsweise Relais oder Sicherungen, anstelle von Flachsteckzungen mit Kontaktstiften (3) zu versehen, die dort angeordnet sind, wo die Seitenkanten der bisherigen Flachsteckzungen angeordnet sind. Für jede Flachsteckzunge wird also ein Paar von Kontaktstiften verwendet, gegebenenfalls auch ein dritter Kontaktstift in der Mitte. Diese Kontaktstifte lassen sich in durchkontaktierte Bohrungen (5) einer Leiterplatte (4) einpressen, so dass zur Anbringung eines solchen Schaltelements oder Steckelements kein Sockel mehr erforderlich ist. Auch eine direkte Verbindung der Schaltelemente in SMT Technik wird vorgeschlagen.