Patent ID: 6939791

Claim:
An method for forming an electronic structure, comprising the steps of: providing a substrate layer that includes a first electronic device; forming a passivating layer on the substrate layer and in mechanic contact with the substrate layer, wherein the passivating layer is on the first electronic device and is in mechanical contact with the first electronic device; forming a first insulative layer on the passivating layer and in mechanical contact with the passivating layer; forming a first damascene conductive wire/stud in the first insulative layer; removing a top portion of the first insulative layer such that an upper portion of the first damascene conductive wire/stud is above the first insulative layer after said removing; forming a metallic capping layer on the first insulative layer such at the metallic capping layer is in conductive contact with the first damascene conductive wire/stud; subtractively etching a portion of the metallic capping layer to form a subtractive etch metallic cap on the upper portion of the first damascene conductive wire/stud such that the subtractive etch metallic cap is in conductive contact with the first damascene conductive wire/stud; forming a second insulative layer on the first insulative layer, wherein the second insulative layer covers the subtractive etch metallic cap; and forming a damascene conductive wiring line structure within the second insulative layer such that the damascene conductive wiring line structure is above the subtractive etch metallic cap and conductively coupled to the subtractive etch metallic cap.