Patent ID: 8694949

Claim:
A semiconductor chip comprising: a semiconductor board having a surface comprised of a quadrangle in a plan view, the surface having a first side, a second side facing the first side, a third side crossing the first and second sides, and a fourth side facing the third side and crossing the first and second sides; a first memory interface circuit formed on the surface of the semiconductor board, the first memory interface circuit being arranged along the first side of the surface of the semiconductor board in the plan view, the first memory interface circuit being arranged closer to the first side of the surface of the semiconductor board than the second side of the surface of the semiconductor board in the plan view, the first memory interface circuit having a first data unit; and a second memory interface circuit formed on the surface of the semiconductor board, the second memory interface circuit being arranged along the third side of the surface of the semiconductor board in the plan view, the second memory interface circuit being arranged closer to the third side of the surface of the semiconductor board than the fourth side of the surface of the semiconductor board in the plan view, the second memory interface circuit having a second data unit.