Bulk inversion in FinFETs and the implied insignificance of the effective gate width

Three- and two-dimensional numerical simulations of double-gate (DG) and triple-gate (TG) FinFETs having undoped thin bodies have revealed the significance of bulk-inversion current in I/sub on/, as well as I/sub off/, and the consequent insignificance of the commonly defined effective gate width in comparisons of DG and TG currents.