One electron-based smallest flexible logic cell

doi:10.1063/1.4761935

One electron-based smallest flexible logic cell

2012-10-29

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DOI：10.1063/1.4761935

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A one electron-based operating half-adder, the smallest arithmetic block, has been implemented on silicon-on-insulator structure whose basic element is a nanoscale single-electron transistor (SET) with two symmetrical side-wall gates. Grayscale contour plots of the resulting cell output voltages exhibit the Coulomb blockade-induced periodic alternating high/low features. Their voltage transfer characteristics display typical Sum and Carry-Out functions for binary, multi-valued (MV), and binary-MV mixed input voltages. Moreover, the half-adder function converts into a subtraction mode by adjusting control gates of the SET element. This flexible multi-valued cell provides an arithmetic block for the SET MV logic family of high density integration, operating with ultra-low power. (C) 2012 American Institute of Physics. [http://dx.doi.org/10.1063/1.4761935]

Keywords:

MULTIPLE-VALUED LOGIC

SINGLE-ELECTRON

TRANSISTORS

MEMORY

HOLE

DOT

One electron-based smallest flexible logic cell

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