Patent ID: 8264029
Filing Date: 2012-09-11
Classification: H01L

Abstract:
1. A semiconductor device comprising: a plurality of first bit lines comprising a plurality of upper faces, the plurality of first bit lines provided on a substrate, the substrate comprising a surface; an insulating layer that is provided between the plurality of first bit lines on the substrate, the insulating layer comprising opposing side faces, wherein an upper face of the insulating layer is higher than a plurality of upper faces of the plurality of first bit lines; a plurality of channel layers provided on the side faces of the insulating layer and coupled to the respective first bit lines of the plurality of first bit lines; and an ONO film comprising a top oxide film, a tunnel oxide film, and a plurality of charge storage layers, the top oxide film and the tunnel oxide film each comprising top, bottom and side surfaces, wherein the plurality of charge storage layers is provided between the side surfaces of the top oxide film and the tunnel oxide film, further wherein at least a portion of the bottom surface of the top oxide film is in direct contact with the top surface of the tunnel oxide film.