Patent ID: 7776705

Claim:
A method of forming one or more inductors on a substrate, the method comprising: forming a plurality of integrated circuits on the substrate; forming a metal layer over the plurality of integrated circuits; forming a passivation layer over the metal layer and the plurality of integrated circuits; forming a plurality of openings in the passivation layer thereby exposing a portion of the metal layer; forming a copper barrier layer over the passivation layer and the plurality of passivation layer openings; forming a photoresist layer over the copper barrier layer; anisotropically etching the photoresist layer to form at least one trench; substantially filling the at least one trench with a copper material to form a copper layer having at least one inductor portion, each inductor portion having an uppermost portion; removing the photoresist layer; annealing the copper layer; forming a dielectric material over the copper layer; removing horizontal sections of the dielectric material including the dielectric material from the uppermost portion of each inductor portion of the copper layer thus leaving a vertical portion of the dielectric material on sidewalk of each inductor portion; and etching through portions of the copper barrier layer contained within the plurality of passivation layer openings to expose the metal layer.