Patent ID: 7619270

Claim:
An electronic device comprising: a substrate including a first trench that includes a first wall, a second wall, and a bottom lying between the first and second walls, wherein the first wall and the second wall extend from a primary surface of the substrate; a first dielectric layer lying along the first and second walls of the first trench; discontinuous storage elements, wherein: a first portion of the discontinuous storage elements lies at least within the first trench; and the first dielectric layer lies between the first portion of the discontinuous storage elements and the first and second walls of the first trench; a second dielectric layer; a first gate electrode, wherein at least a part of the first portion of the discontinuous storage elements lies between the first gate electrode and the wall of the first trench, wherein: the second dielectric layer lies between the first portion of the discontinuous storage elements and the first gate electrode; the first gate electrode includes a first surface and a second surface, wherein the first surface is farthest from the bottom of the first trench, and the second surface is opposite the first surface; and the second surface of the first gate electrode overlies a plurality of discontinuous storage elements within the first portion of the storage elements along the bottom of the first trench; and a second gate electrode overlying the first gate electrode and the primary surface of the substrate.