Patent ID: 8809695

Claim:
A substrate for an electronic circuit, the substrate comprising: a plurality of contact areas, a plurality of dielectric areas formed around the contact areas, wherein the dielectric areas comprise a base-emitter of a bipolar-transistor made of oxide, and a conductor path made of a metallic material, wherein each of the plurality of contact areas is completely surrounded by and in contact with a respective one of the dielectric areas, wherein at least two of the contact areas are connected with each other by the conductor path, and wherein the conductor path completely covers the contact areas and the dielectric areas, wherein the dielectric areas are completely located in a first plane and the conductor path is completely located in a second plane that is vertically separated from and in parallel with the first plane such that there is no crossover between the conductor path and the dielectric areas, wherein the conductor path comprises an elongated portion having a rectangular shape with a constant width and a bulge portion having a circular shape, wherein the elongated portion is in contact with the bulge portion on two sides of the circular shape, and wherein the elongated portion and the bulge portion of the conductor path are completely located in the second plane.