SEMICONDUCTOR MEMORY DEVICE HAVING TWISTED BIT-LINES FOR MAINTAINING UNIFORMITY OF CELL PATTERNS

摘要

PURPOSE: A semiconductor memory device having twisted bit-lines is provided to form reliable cells by maintaining uniformity of cell patterns. CONSTITUTION: A plurality of transistors are formed in uniform and continuous patterns on a cell array region of a semiconductor memory device. A plurality of storage elements are electrically connected to the transistors in uniform and continuous patterns. Word line couples and bit line couples are perpendicular to each other. The bit line couples crosses each other in an insulating state on a predetermined region in which the transistors and the bit line couples are not electrically connected to each other.