Patent ID: 8188461

Claim:
A memory device comprising: a word line extending in a first direction, a first insulating film over the word line, a first opening reaching the word line in the first insulating film, a bit line extending in a second direction that is extended across the first direction over the first insulating film, a second insulating film over the bit line, a second opening reaching the bit line in the second insulating film, and a layer containing an organic compound over one side surface of the bit line and the first and second openings, wherein the layer containing the organic compound is formed over a curved surface of a side wall of the first insulating film, wherein the layer containing the organic compound is in contact with a side wall of the second insulating film, wherein the layer containing the organic compound is overlapped with an upper surface of the bit line, wherein the second opening is wider than the first opening, wherein the width of the word line is wider than the second opening, wherein the layer containing the organic compound is on and in direct contact with both a part of the bit line and a part of the word line, and wherein the bit line comprises a tapered shape of conductive material.