Patent ID: 7781817
Filing Date: 2010-08-24
Classification: H01L

Abstract:
1. A semiconductor structure, comprising: a semiconductor substrate which includes a top substrate surface, wherein the top substrate surface defines a first reference direction that is perpendicular to the top substrate surface; a control gate electrode region on and above the semiconductor substrate; a first semiconductor body region on and above the semiconductor substrate, wherein the first reference direction is directed from the top substrate surface toward the first semiconductor body region; a second semiconductor body region on and above the first semiconductor body region, wherein the second semiconductor body region overlaps the first semiconductor body region in the first reference direction; a first gate dielectric region on and in direct physical contact with side walls of the first semiconductor body region, wherein the first gate dielectric region is disposed between the first semiconductor body region and the control gate electrode region; and a second gate dielectric region on and in direct physical contact with side walls of the second semiconductor body region, wherein the second gate dielectric region is disposed between the second semiconductor body region and the control gate electrode region,