US 7,746,118 B2 · Single electron based flexible multi-functional logic circuit and the transistor thereof

Abstract

The present invention relates to a flexible multi-functional logic circuit which switches a current direction to a serial or parallel direction using at least two single electron transistors (SETs) having the same pattern and as many field effect transistors (FETs) as the number of the single electron transistors and performs operations on multi-valued signals using Coulomb oscillation that is the unique characteristic of SET to enable conversion of a single logic circuit to four basic logic circuits of NAND, OR, NOR and AND gates and a device using the same.

Claims9

Dependent claims

A single electron based flexible multi-functional logic circuit comprising:

first and second single electron transistors SET1 and SET2 respectively having side gates Gate1 and Gate2 and input voltage ports Vin1 and Vin2;
a constant current source VD for supplying a predetermined current;
a first field effect transistor FET1 for maintaining a predetermined drain voltage applied to the first and second single electron transistors SET1 and SET2 by the constant current source VD;
at least a second field effect transistor FET2 for determining flow of current to the first and second single electron transistors SET1 and SET2;
and
two ports Port1 and Port2 for changing a current flow direction depending on whether the second field effect transistor FET2 is turned on or off.

3 more elements

Dependencies are inferred from the claim text.

Facts

Application

12/281,846Filed 11 Sep 2007

Priority

KR 10-2006-013009719 Dec 2006

Published

US 2009/0251172 A18 Oct 2009

Granted

29 Jun 2010

Term ends

Not estimatedThe source records don’t support an estimate.

Classification6 codes

H03K 19/20
Logic circuits, i.e. having at least two inputs acting on one output ; Inverting circuits: characterised by logic function, e.g. AND, OR, NOR, NOT…
B82Y 10/00
Nanotechnology for information processing, storage or transmission
H10D 30/402
FETs having zero-dimensional [0D], one-dimensional [1D] or two-dimensional [2D] charge carrier gas channels: single electron transistors; Coulomb…
H03K
Pulse technique

Single electron based flexible multi-functional logic circuit and the transistor thereof

Life of this patent

Single electron based flexible multi-functional logic circuit and the transistor thereof

Life of this patent

Abstract

Claims9