Patent ID: 8294214
Filing Date: 2012-10-23
Classification: H01L

Abstract:
1. A semiconductor device comprising: a semiconductor substrate of a rectangular shape having a first long side, a second long side opposed to the first long side, a first short side and a second short side opposed to the first short side; a plurality of first bumps formed over the semiconductor substrate and arranged along the first long side; a plurality of second bumps formed over the semiconductor substrate and arranged along the second long side; an interlayer insulating film formed under the first bumps and the second bumps; a plurality of first wirings formed under the interlayer insulating film such that the plurality of first wirings are overlapped with the first bumps in a plan view; and a plurality of dummy wirings formed under the interlayer insulating film such that the plurality of dummy wirings are overlapped with the first bumps in a plan view and are formed at the same layer as the first wirings, wherein the plurality of first wirings extend along the first long side, wherein the plurality of first wirings are formed between the first long side and the plurality of dummy wirings in a plan view, and wherein the dummy wirings are arranged such that the number of dummy wirings arranged near the first or second short sides is larger than the number of dummy wirings arranged near a central portion of the first long side.