Patent ID: 7183603

Claim:
A semiconductor device, comprising: word lines formed on a semiconductor substrate in a word line direction; bit lines formed on the semiconductor structure in a bit line direction, wherein the bit lines are separated from the word lines and the bit line direction is perpendicular to the word lines; active regions defined on the semiconductor substrate, wherein the active regions have a major axis slanted to the word lines direction and to the bit line direction; capacitor storage nodes arranged in a line in the word line direction overlapping the word lines and arranged in a zigzag pattern in the bit line direction, the zigzag pattern centered on the bit lines; and storage node contacts electrically connecting the active regions with the capacitor storage nodes, wherein the storage node contacts are self-aligned with the bit lines, separated from each other by the word lines, have a width in the word line direction larger than in the bit line direction, and overlap areas of the capacitor storage nodes.