Patent ID: 7361993

Claim:
A structure, comprising: an electrically conductive wire formed in a dielectric layer on a substrate, an entire top surface of said wire coplanar with a top surface of said dielectric layer, said wire comprising a conformal and electrically conductive first liner and an electrically conductive first core conductor; a passivation layer on said top surface of said dielectric layer and said top surface of said wire, said passivation layer comprising a lower dielectric layer on said top surfaces of said dielectric layer and said wire, an intermediate dielectric layer on a top surface of said lower dielectric layer and an upper dielectric layer on a top surface of said intermediate dielectric layer; a trench in said passivation layer, said trench extending from a top surface of said passivation layer to said top surface of said wire; a conformal and electrically conductive second liner on sidewalls of said trench and in direct physical and electrical contact with said top surface of said wire; a terminal pad comprising an electrically conductive second core conductor and said second liner, said second core conductor filling all portions of said trench not filled by said second liner, a top surface of said second core conductor and surfaces of said second liner not in contact with said second core conductor or said passivation layer coplanar with a top surface of said passivation layer, a first perimeter defined by all sides of said terminal pad aligned entirely within a second perimeter defined by all sides of said wire; a ball-limiting-metallurgy pad on a top surface of said terminal pad and overlapping all sides of said terminal pad; and a solder bump on a top surface of said ball-limiting-metallurgy pad.