Analytical modeling of Accumulation-Mode Suspended-Gate MOSFET and process challenges for very low operating power devices

Abstract

For the first time, an analytical model of an Accumulation-Mode Suspended-Gate MOSFET is proposed. For very low power operation, adhesion energies of gate and gate oxide as low as 130µJ/m2 are required as well as sub-2.3N/m doubly clamped gate. Experimentally a 0.2N/m suspended silicon nanowire was processed, opening perspectives for device downscaling.