Patent ID: 7911062

Claim:
A semiconductor device comprising: a semiconductor chip having four side edges, each of the four side edges being located between two adjacent corners, and having a plurality of electrodes; a plurality of leads electrically connected to the plurality of electrodes of the semiconductor chip by bonding wires; and a resin for implementing the semiconductor chip, wherein the plurality of leads include at least a first group of leads, the leads of the first group being directly adjacent one another and having first rigidity and a second group of leads, the leads of the second group being directly adjacent one another and having second rigidity higher than the first rigidity, the first group of leads having first ends provided at a center region of at least the one side edge of the semiconductor chip and adjacent at least one end region of at least the one side edge of the semiconductor chip, and the second group of leads having first ends provided adjacent a region between the center region and the at least one end region of at least the one side edge, such that the leads of the first group are closer to a corner than leads of the second group.