Patent ID: 7964906
Filing Date: 2011-06-21
Classification: H01L

Abstract:
1. A semiconductor device comprising: a semiconductor layer; a plurality of charge-accumulating layers formed at a predetermined interval from each other on said semiconductor layer through a first insulating film; a second insulating film formed on each of said plurality of charge-accumulating layer; a control gate including a silicide film formed on said second insulating film; a third insulating film formed between said control gates so that a top most surface of said third insulating film is lower than a top surface of said control gate but is higher than a top surface of said second insulating film; a fourth insulating film formed into a concave shape so as to cover the top most surface of said third insulating film and a side surfaces of said control gate positioned higher than the top most surface of said third insulating film; and a fifth insulating film formed on said control gate and said fourth insulating film, wherein a region directly adjacent to neighboring stacks, each of said neighboring stacks including the first insulating film, the charge-accumulating layer, and the second insulating film, is occupied by a third insulating film.