Patent ID: 7057267

Claim:
A semiconductor device comprising: a substrate on which are formed a first group and a second group of leads; and a semiconductor chip having a first group and a second group of electrodes, the first group and the second group of electrodes being arranged respectively in first and second regions which sandwich a region between first and second straight lines on the semiconductor chip, the first and second straight lines being parallel to each other, wherein the semiconductor chip is mounted on the substrate so that the first group of electrodes faces the first group of leads and the second group of electrodes faces the second group of leads, wherein each of the second group of leads has a bent portion, the bent portion being formed so that a contour of an inner side of each of the bent portion draws a curve, and wherein the first group of leads is drawn out in a direction extending away from the second group of electrodes, each of the second group of leads is drawn out so as to pass between the first group of electrodes, and the bent portion is positioned on a portion of the substrate opposed to the region between the first and second straight lines.