Patent ID: 8492748

Claim:
A structure comprising: at least one 2-dimensional carbon lattice structure located on a top surface of an insulator layer; and a gate stack, from bottom to top, of a gate dielectric and a gate conductor, said gate stack including a horizontal portion, a non-horizontal curved portion, and a pillar portion, wherein a vertical distance between said gate stack and said top surface of said insulator layer is not greater than a thickness of said at least one 2-dimensional carbon lattice structure within said horizontal portion, increases with a lateral distance from said horizontal portion within said non-horizontal curved portion, and a portion of said gate conductor within said pillar portion protrudes below a bottom surface of said non-horizontal curved portion in a region that does not overlie said at least one 2-dimensional carbon lattice structure and contacts a top surface of a horizontal portion of said gate dielectric within said pillar portion that is in direct contact with said top surface of said insulator layer.