Patent ID: 7746118

Claim:
A single electron based flexible multi-functional logic circuit comprising: first and second single electron transistors SET 1 and SET 2 respectively having side gates Gate 1 and Gate 2 and input voltage ports Vin 1 and Vin 2 ; a constant current source VD for supplying a predetermined current; a first field effect transistor FET 1 for maintaining a predetermined drain voltage applied to the first and second single electron transistors SET 1 and SET 2 by the constant current source VD; at least a second field effect transistor FET 2 for determining flow of current to the first and second single electron transistors SET 1 and SET 2 ; and two ports Port 1 and Port 2 for changing a current flow direction depending on whether the second field effect transistor FET 2 is turned on or off.