Patent ID: 7118962

Claim:
A method for manufacturing a nonvolatile memory device, comprising the steps of: forming gates of a stack type structure on an active region of a semiconductor substrate; forming a source/drain in the substrate at both sides of the gate of the stack type structure; forming a first interlayer insulating film on the entire surface of substrate where the source/drain is formed; forming a plurality of trenches having a predetermined depth in the first interlayer insulating film of the region not adjacent to a contact forming region; depositing a conductive material on the entire surface of the substrate where the trenches are formed; forming a conductive pattern by selectively etching the conductive material; forming a second interlayer insulating film on the first interlayer insulating film where the conductive pattern is formed; forming a first contact hole connecting to parts of the source/drain and a second contact hole connecting to the conductive pattern by selectively etching the second interlayer insulating film; and forming an electrode pad and a contact by burying the first contact hole and the second contact hole with a conductive material.