Patent ID: 8901733

Claim:
A circuit component comprising: a semiconductor substrate; a dielectric layer directly on said semiconductor substrate, wherein a via is in said dielectric layer and penetrates through said dielectric layer; a conductive pad directly on said dielectric layer, said conductive pad coupled to said semiconductor substrate through said via; a passivation layer on said dielectric layer and directly on a surface of said conductive pad opposite said dielectric layer, wherein a first opening in said passivation layer exposes a contact point of said conductive pad, in which a thickness of the conductive pad covered by the passivation layer is greater than a thickness of the conductive pad exposed by the first opening in the passivation layer; a polymer layer on said passivation layer and said contact point and in said first opening, wherein a second opening in said polymer layer exposes said contact point; and a conductive interconnect on said contact point and said polymer layer, wherein said conductive interconnect is coupled to said contact point through said second opening, wherein said conductive interconnect comprises a conductive layer on said contact point and said polymer layer, wherein said conductive layer comprises a copper-containing layer, a nickel layer on said conductive layer opposite said contact point, and a solder on said nickel layer.