Edge termination for an electrical circuit device

Claim 1

In an electrical circuit device including a substrate of electrically insulating material having a first planar surface upon which is disposed an electrical circuit component; an adjoining second generally planar surface angularly disposed relative to said first planar surface; said planar surfaces conjointly defining a line of intersection therebetween; an aperture extending inwardly from said second planar surface and having its entrance opening solely confined to said second planar surface; a terminal lead having a portion thereof seated within said aperture and having its remaining portion extending outwardly from said entrance opening; a conducting edge termination coating deposited transversely of said second planar surface and extending from said aperture over said line of intersection and onto said first planar surface to provide a continuous path between said electrical circuit component and said terminal lead; and a layer of conducting solder deposited on said edge termination coating: the combination therewith of a continuous groove formed in the second planar surface of said substrate, said groove having one end communicating with said aperture and having its opposite end traversing said line of intersection to conjointly communicate with each of said first and second planar surfaces and underlying said deposited edge termination coating; whereby an uninterrupted conducting path of solder and its underlying edge termination coating extends from said lead to connect with said electrical circuit component.