Patent ID: 8338965

Claim:
A semiconductor chip comprising: a semiconductor substrate on which an integrated circuit is formed; and a plurality of electrodes which are provided on the semiconductor substrate and are arranged into a plurality of first groups each including more than two electrodes and respectively lined along a plurality of paralleling first straight lines which extend along one side of the semiconductor substrate and, further, into a plurality of second groups each including more than two electrodes and respectively lined along a plurality of second straight lines which extend diagonally from the first straight lines; wherein the second straight lines extend so as to not cross each other in an area that the second straight lines overlap the semiconductor substrate; wherein two adjacent lines of the second straight lines are line symmetrical about a third line that is perpendicular to the first straight lines and at an axis of symmetry between the two adjacent lines of the second straight lines; and wherein all the electrodes are provided only on the first straight lines and the second straight lines.