Abstract:
An electrically conductive adhesive comprises electrically conductive particles mixed in a non-conductive base at such a mixing ratio that the conductive particles are not in contact with one another. When this adhesive is disposed between facing electrodes, it provides electric conductivity between the facing electrodes but maintains electric insulation in the lateral direction.
Abstract:
A prefabricated printed circuit board including a plurality of laminated planar-printed circuit-carrying members, each of the printed circuits having points of connection which are placed in congruent relation upon lamination, and having exposed planar surfaces which are covered over the entire area thereof with an etchable electrically conductive material such as copper. When employed to connect a specific group of components, the bonded layer is etched to a desired pattern, including points of electrical connection, following which the electrical components are mounted upon areas of the etched surface to be placed in electrical communication therewith.