Patent ID: 7704829
Filing Date: 2010-04-27
Classification: H01L

Abstract:
1. A method for fabricating a nonvolatile memory device, comprising: forming a source region in an active region of a semiconductor substrate; forming an insulating film having an opening that partially exposes the source region; forming a conductive film on the insulating film, the conductive film being electrically connected with the source region through the opening; patterning the conductive film to form a source line connected with the source region and crossing the active region; forming spacers at sidewalls of the source line and on the insulating film; removing a portion of the insulating film, while leaving another portion of the insulating film remaining below the spacers; conformally forming a charge storage layer on the active region, the spacers, and the source line; forming word lines on the charge storage layer on the active region, the word lines being formed to have a spacer-like configuration that is self-aligned with respect to the sidewalls of the spacers; and forming a drain region in the active region adjacent the word lines and spaced apart from the source region.