An integrated circuit comprises a rectangular semiconductor chip, on which gate-array and storage sections are provided. The gate-array section includes a plurality of lines of I/O circuits formed at the same or predetermined intervals along one side of the semiconductor chip, and an array of standard cells is formed in the areas where no I/O circuits exist on the semiconductor chip. The storage section is arranged in areas of the gate-array section so as not to disturb the I/O circuits.
