Semiconductor device

Abstract

Abstract PURPOSE:To increase the cell density by annularly placing cell regions and wiring regions in the four triangular sections obtained by partitioning a quadrangular chip with the diagonal lines, along and in parallel with the perimetrical sides, thereby narrowing the width of the wiring regions. CONSTITUTION:The device is provided with a construction in which a quadrangular chip is partitioned into four with the diagonal lins and internal cell regions 1 and wiring regions 2 are placed in the four respective triangular sections along and in parallel with the perimetrical sides, that is, a structure in which cell regions the lengths of which sequentially become shorter from the outermost perimetry to the center are annularly arranged in a quadrangle along the perimetrical sides. The interconnections between the individual cells in the cell regions are uniformized since the wiring regions 2 are also annular as with the cell regions 1, and it is possible to narrow the width of the wiring regions 2. Then, a power supply and grounding wiring pattern 3 is connected to a power supply terminal V and a ground terminal G of an input/output terminal region 4 and provided along the perimeter of the chip and the diagonal lines. Accordingly, the wiring is shortened, the voltage drop decreases, and the operation of the cell circuit is assured.

Inventors

• 👤 Yasunori Ouchi

Bibliographic Details