Abstract:
An electrical connector for connecting an integrated circuit (IC) to a receptacle such as a socket includes a base module to which is attached an IC module. The base module contains, on one surface, pins for insertion into the socket, and, on another surface, base pads, which are connected to the pins by conductors located inside the base module. A custom IC module is then formed on the base module. The base pads connect electrically with respective larger pads in the IC module to ensure good electrical contact despite size variations which may exist in the base module. The IC module contains IC pads on an external surface, which connect with the base pads by way of internal interconnections constructed into the IC module. An integrated circuit (IC) is bonded to the IC pads. The base module is formed from a ceramic material and the IC module is formed from a polymer material, such as polyimide.
Abstract:
An anisotropic electrically conductive adhesive film (1) having fine through holes (2) independently electroconductively passing through an insulating film in the thickness direction, at least one end portion of both the end portions of the each through hole on the front and back surfaces of said film being blocked with a bump-form metal projection (4) having a larger base area than the area of the opening portion of the through hole, wherein the insulating film comprises a thermoplastic polyimide resin having a melt viscosity at 400°C of not higher than 1×10⁸ poise is disclosed. The film is interposed between materials to be connected to provide a connection structure.
Abstract:
The invention uses a programmable interconnect substrate having a plurality of conductive and interconnectable vias located on one or both surfaces thereof. A customised pattern of bonding pads is then formed over the one or both surface of the substrate which correspond to the terminal footprints of specific surface mounted packages intended to be mounted on the substrate. A generalised pattern of bonding pads may also be formed on the surface of the substrate for electrically connecting terminals of bare dice thereto by means of thin wire. All bonding pads are electrically connected to one or more vias by direct electrical contact or by a conductive trace extending from the bonding pad to a nearly via.
Abstract:
The present invention provides an anisotropic electrically-conductive film connector comprising a conductive layer (2) and an adhesive layer (1) provided on at least one surface of the conductive layer, the conductive layer having a plurality of conductive elements (3) electrically independent of each other, wherein, each of the conductive elements comprises a metal material having a substantially uniform thickness. The present invention also provides an anisotropic electrically-conductive film connector which has a metal material which is uneven on its junction side surface.
Abstract:
Es wird ein Verfahren zur Herstellung von durchkontak tierten elektrischen Leiterplatten beschrieben, bei dem eine Platte aus Isolierstoffmaterial mit in rasterartigem Muster angeordneten Durchkontaktierungslöchern versehen wird, deren Wandungen mit einer Metallschicht überzogen wer den und die auf mindestens einer Seite mit einer leitfähigen Metallschicht bedeckt wird. Die Metallschicht wird nach dem Metallisieren der Löcher bildmässig abgedeckt, und die nicht abgedeckten Bereiche der Metallschicht werden entweder durch Metallablagerung verstärkt oder durch Ät zen entfernt. Zugleich mit der Metallschicht wird ein Teil der Löcher in der Weise abgedeckt, dass im fertigen Pro dukt nur der gewünschte Anteil aller Löcher als Leitkontakt wirksam wird. Das Verfahren erlaubt die Fertigung von vor gebohrtem bzw. vorgelochtem und vormetallisiertem Ba sismaterial für gedruckte Schaltungen in Grosserie.
Abstract:
The adhesive layer of the novel transfer tape contains electrically and thermally conductive particles such as silver which are preferably spherical and are larger than the thickness of the adhesive between particles. When used to bond two rigid substrates together, pressure is applied to the substrates to flatten the particles to the thickness of the adhesive between particles, thus making good electrical and thermal connection between the substrates through each particle.
Abstract:
Provided is an electrical junction box having a novel structure capable of preventing vehicle fire after the infiltration of water without depending on a waterproofing structure of the electrical junction box. An electrical junction box (10) includes a bus bar circuit unit (12) obtained by arranging a plurality of bus bars (28a to 28g) including a power source-side bus bar (28c) to be connected to a power source line and a ground-side bus bar (28d) to be connected to a ground line on insulated boards (26a, 26b). In the electrical junction box (10), the power source-side bus bar (28c) and the ground-side bus bar (28d) are arranged adjacent to each other, and an oxide deposition inhibiting structure (42) is provided in exposed portions (44a to 44c) of the insulated board (26a) exposed through a gap between the power source-side bus bar (28c) and the ground-side bus bar (28d).