Patent ID: 6757197
Filing Date: 2004-06-29
Classification: G11C

Abstract:
A file storage type non-volatile semiconductor memory device comprising:a memory cell array region including a plurality of memory cells arranged in a column direction and a row direction, each of the memory cells having first and second non-volatile memory elements that are controlled by one word gate and first and second control gates; a plurality of sector regions obtained by dividing the memory cell array region in the column direction; a plurality of control gate driver sections each of which is provided for each of the sector regions; four main control gate lines extending in the row direction in each of the sector regions; and a plurality of sub control gate lines extending in the column direction in each of the sector regions, and each of the sub control gate lines connecting the first and second control gates which are adjacent to each other in the row direction and belonged to different two of the memory cells which are adjacent to each other in the row direction, wherein the sub control gate lines are sequentially connected to one of the four main control gate lines in the row direction, in each of the sector regions.