Patent ID: 7642646

Claim:
A semiconductor device comprising: a semiconductor substrate; an electrode pad formed over the semiconductor substrate; a plurality of wires in proximity to and around the electrode pad, the plurality of wires being adjacent to each other; a protective film covering an edge portion of the electrode pad, the plurality of wires, and a gap between the electrode pad and the plurality of wires, the protective film having an opening over the electrode pad; and a metal bump formed over the electrode pad, the metal bump having, on a surface thereof opposite the electrode pad, a concave portion located above the opening of the protective film and a convex portion located above an edge portion of the electrode pad, the plurality of wires, and the gap between the electrode pad and the plurality of wires, and a gap between adjacent wires, wherein the gap between the electrode pad and the plurality of wires is not wider than 1 μm, the gap between adjacent wires is not wider than 1 μm, and an upper face of the convex portion is substantially flat.