Electrical circuit assemblies

Claim 1

In combination, a pair of electrical circuit assemblies; a support upon which the electrical circuit assemblies are mounted, each electrical circuit assembly comprising a stack of a plurality of substantially identically constructed modules, each such module comprising a substantially planar electrically insulating substrate extending at right angles to a longitudinal axis of symmetry of the stack, each module having circuit elements on only one major substrate surface thereof and being provided with a layer of electrically conductive material wholly coating an opposite major substrate surface, means for electrically interconnecting the modules to form a completed electrical circuit, the modules, at least partially, being held in required locations in the stack by a plurality of members extending parallel to the longitudinal axis of symmetry of and at least wholly along the stack, at least one of said members being an electrical conductor member which interconnects the electrically conductive coatings of the modules, the electrically conductive coatings of said modules and the electrical conductor member connected thereto together forming an extensive body which is maintained at zero potential so as to reduce undesired electrical interaction between the circuit elements of said modules; the pair of electrical circuit assemblies being mounted on the support adjacent to one another by the plurality of members co-operating with the support, the support extending generally in a plane at right angles to the longitudinal axis of symmetry of each stack; and a common module disposed at an extremity of the pair of electrical circuit assemblies, the common module having a substrate which extends parallel to the substrates of the pair of electrical circuit assemblies and which is sized such that a portion of the common module extends over and constitutes part of each stack of modules.