Abstract:
This invention provides a laminated circuit board capable of setting constants of various circuit devices mounted on the laminated circuit board by selective connection between wiring layers, and a laminated circuit board capable of arbitrarily setting distributed circuit constants in a high frequency wiring layer interposed between two shield wiring layers. The laminated circuit board includes a plurality of wiring layers (11-1m) each having a conductive pattern formed on an insulator layer, a connection wiring layer (2) laminated on the surface of a plurality of laminated wiring layers, a plurality of terminal patterns (21 to 2n, 20) formed in a mutually insulated state on the connection wiring layer, a plurality of vias (P1 to Pn) for electrically connecting at least two of the terminal patterns to the corresponding patterns of the wiring layers, and connection means for connecting mutually and selectively the terminal patterns.
Abstract:
According to a process for producing a thermal layout, not only massive heat sinks are provided for absorbing heat, but also an optimized number of thermoconductive strips which distribute the heat over the printed circuit board. In the collecting zones are arranged higher capacity sinks into which the heat is transmitted. The thermoconductive strips may be thermoconductors (TL) provided for that purpose and more massive than the conductive strips for the electric connections, or conductive strips for electric connections, the electroconductors (EL), may also be used for heat transfer. An optimum design interconnects the TL'S and EL's into a functional whole, a thermal management network. With a certain technique, which could be called pocket groove technique, "cooling channels" of a type may be created. Such thermoconductors may be included in the electric layout, so that a thermal layout is superimposed on the connection layout (TL/EL network). Heat distribution and transfer may thus be calculated and optimized by a computer in the same way as the electric distribution by the conductive strips, i.e. the known electric layout, which is produced by a computer-assisted process.
Abstract:
The invention provides an electronic device that includes a first functional body, a second functional body, and at least one connection member connecting the first functional body to the second functional body. The at least one connection member has a spiral pattern, and is suspended in air to allow tor stretching, flexing or compressing.
Abstract:
The present invention provides electrically conductive sheet materials (10) that contain columns of electrically conductive particles aligned to form continuous columns (19) between lateral faces of the conductive sheet material (10). The particle columns (19) are arranged so that the sheet is conductive through the thickness, but is electrically insulating in lateral directions. The present invention also provides methods by which such electrically conductive sheet materials (10) can be made. The present invention is able to provide conductive pathways in a precise, regular array, at a very fine pitch.
Abstract:
The initial intention in the semi-finished product of the invention is to provide a functional separation between the requirement for mechanical strength and the previously concomitant requirement, for completing a circuit, in order to bring the pure circuit connection, especially for signals, "closer" to the electrical and technical properties of chips. To do this, the layout miniaturisation is optimised without regard for the mechanical strength of the substrate. Instead of a printed circuit board (MCM), a semi-finished product which can be developed into a printed circuit board is made. The semi-finished product of the invention consists of an extremely thin film (8) with a plurality of extremely small holes (14) made simultaneously by an etching process. The hole diameters can be reduced by almost an order of magnitude (down to 20 mu m), facilitating, for instance, definite sub-100 mu m technology. Such a semi-finished product (19) does not act as a mechanical support but is designed only for signal conduction. The semi-finished product (19) which carries the densely packed wiring pattern, is bonded to a not densely packed power supply plane (22) acting as the service plane and the printed circuit board thus made is finally secured to a mechanical support (20).
Abstract:
본 발명의 도전성 접착 필름은 태양 전지 셀의 표면 전극과, 배선 부재를 전기적으로 접속하기 위한 도전성 접착 필름이며, 절연성 접착제 (2)와 도전성 입자 (1)을 함유하고, 상기 도전성 입자 (1)의 평균 입경을 r(㎛), 상기 도전성 접착 필름의 두께를 t(㎛)로 할 때, (t/r)의 값이 0.75 내지 17.5의 범위 내이고, 상기 도전성 입자 (1)의 함유량이 상기 도전성 접착 필름의 전체 부피를 기준으로 1.7 내지 15.6 부피%인 것이다.
Abstract:
A conductive adhesive film is provided to reduce costs in electrical connection between terminals using the conductive adhesive film and to improve connection reliability between the terminals. A plurality of conductive particles(3) are dispersed on a conductive adhesive film(1) in the insulating adhesive materials(2). Each conductive particle has predetermined intervals(P) is arranged in the insulating adhesive material. The conductive adhesive film electrically connects the first terminal and the second terminal. The first terminal and the second terminal comprise a plurality of terminal parts(102t) arranged to the respective first direction (H).