Patent ID: 7595561

Claim:
A semiconductor device comprising: an internal circuit; inner-side and outer-side peripheral circuit units electrically connected to said internal circuit and arranged on at least one peripheral edge of said internal circuit; and inner-side and outer-side pads, each of said inner-side pads being electrically connected to one of said inner-side peripheral circuit units, each of said outer-side pads being electrically connected to one of said outer-side peripheral circuit units, wherein said pads are circuit-under-pad (CUP) pads each immediately above one of said peripheral circuit units, wherein distances between centers of immediately adjacent pairs of said inner-side pads are alternately changed so that two different distances P 2 and P 3 are alternately set between centers of said inner-side pads, and a distance P 1 between centers of immediately adjacent pairs of said outer-side pads is approximately uniform, wherein the distances P 1 and P 2 and P 3 satisfy: P2<P3; and P 2 +P 3=2· P 1, and wherein spacings S 2 and S 3 between immediately adjacent sides of respective said immediately adjacent pairs of said inner-side pads and a spacing S 1 between immediately adjacent sides of said immediately adjacent pairs of said outer-side pads satisfy: S2<S1<S3.