Patent ID: 7314798
Filing Date: 2008-01-01
Classification: B82Y,H01L

Abstract:
1. A method of fabricating a storage device in an array of storage devices, comprising: forming first and second trenches in a semiconductor substrate, wherein: forming first and second source/drain regions underlying the first and second trenches respectively; forming a charge storage stack, wherein the charge storage stack lines the first and second trenches and overlies a portion of the semiconductor substrate between the first and second trenches, and wherein the charge storage stack includes a layer of discontinuous storage elements (DSEs); and forming a first control gate overlying the first source/drain regions and the charge storage stack, wherein a set of the DSEs overlie the portion of the semiconductor substrate between the first and second trenches, and the set of DSEs lies between the first control gate and the portion of the semiconductor substrate: and forming a first diffusion region between the first and second trenches, wherein: