Patent ID: 7786020

Claim:
A method for fabricating a nonvolatile memory device, the method comprising: repeatedly stacking a stacked structure over a substrate to form a multi-stacked structure, wherein the stacked structure includes a conductive layer and an insulation layer; forming a photoresist pattern over the multi-stacked structure; first-etching an uppermost stacked structure of the multi-stacked structure using the photoresist pattern as an etch barrier; second-etching a resultant structure formed by the first-etching through the use of a breakthrough etching; slimming the photoresist pattern to form a slimmed photoresist pattern; and third-etching the uppermost stacked structure using the slimmed photoresist pattern as an etch barrier and, at the same time, etching a stacked structure disposed under the uppermost stacked structure and exposed by the first-etching.