Patent ID: 7279794
Filing Date: 2007-10-09
Classification: H01L

Abstract:
1. A semiconductor device comprising: a substrate having a wire pattern containing a plurality of leads; and a semiconductor chip having a plurality of electrodes which are mounted on the substrate so as to face the wire pattern, wherein the electrodes are arranged to be classified into a plurality of first groups respectively lined along a plurality of paralleling first straight lines which extend along one side of the semiconductor chip and into a plurality of second groups respectively lined along a plurality of second straight lines which extend in a direction so as to intersect with the first straight lines, wherein each of the leads associated with the first groups of electrodes and each of the leads associated with the second groups of electrodes contain a connecting part facing any one of the electrodes, an extension part extending from the connecting part along any one of the first straight lines and in a direction parallel to the first straight lines, and a draw-out part which is drawn from the extension part and extends in a direction so as to intersect with the first straight line, wherein a width of the extension part is substantially equal to a width of the connecting part, and wherein the width of the extension part and the width of the connecting part are measured in a direction substantially vertical to the first straight lines.