An intermediate wiring layer, lowermost vias and uppermost vias of a
semiconductor integrated circuit are disposed within a zone of wiring
tracks, which are superposed by wiring traces of an uppermost wiring
layer and wiring traces of a lowermost wiring layer, as seen from the
direction normal to the plane. The lowermost vias are disposed so as to
fit in a 4-row, 1-column rectangle, and the uppermost vias are disposed
so as to fit in a 2-row, 2-column rectangle. The center of a via unit,
which comprises the uppermost vias, as seen from the direction normal to
the plane is disposed at the intersecting portion of the lowermost wiring
layer and uppermost wiring layer. The center of a via unit, which
comprises the lower vias, as seen from the direction normal to the plane
is offset by a prescribed amount from the center of the via unit, which
comprises the uppermost vias, as seen from the direction normal to the
plane.