Patent ID: 8847324

Claim:
An integrated circuit transistor structure comprising: a body of semiconductor material, the body having first and second longitudinally spaced doped source/drain volumes and further having at least a first surface, the body further having a channel volume located longitudinally between the first and second source/drain volumes; a gate conductor disposed outside the body, the gate conductor having a first portion facing the first surface and being located longitudinally at least partly along at least part of the channel volume; and a dielectric material between the gate conductor and the first surface of the body, the body containing an adjustment volume, longitudinally within the channel volume and spaced behind the first surface by a first distance and spaced longitudinally from both the first and second source/drain volumes, wherein the adjustment volume comprises an adjustment volume material having, at each longitudinal position, an electrical conductivity which differs from that of the adjacent body material at the same longitudinal position, at least while the transistor is in an off-state.