Patent ID: 8242542

Claim:
A semiconductor structure comprising: an encapsulated semiconductor portion occupying an entirety of a volume defined by a set of surfaces, not directly contacting a source-side conductive material portion or a drain-side conductive material portion, configured to store quantized electrical charges therein, configured to enable quantum tunneling of an electrical current from or into each of said source-side conductive material portion and said drain-side conductive material portion, and including at least one dopant atom, and said set of surfaces comprises: a bottom surface of a first dielectric material portion having a first thickness and contacting a gate conductor, a bottom surface of a second dielectric material portion having a second thickness and vertically spacing said encapsulated semiconductor portion from said source-side conductive material portion, a bottom surface of a third dielectric material portion having said second thickness and vertically spacing said encapsulated semiconductor portion from said drain-side conductive material portion, side surfaces of at least one shallow trench isolation structure, and a top surface of an insulator layer, wherein each of said second and third dielectric material portions contiguously extends from one of first and second side surfaces of said first dielectric material portion at least to a periphery of said at least one shallow trench isolation structure.