Patent ID: 7781862

Claim:
A two terminal switching device, comprising: a first conductive terminal; a second conductive terminal in spaced relation to the first conductive terminal; a nanotube article having a plurality of nanotubes, said nanotube article being arranged such that the nanotube article is in permanent and direct physical contact with both the first and second conductive terminals; and stimulus circuitry in electrical communication with at least one of the first and second conductive terminals, said stimulus circuitry configured to create a first voltage difference between the first conductive terminal and the second conductive terminal, to induce a change in the resistance of the nanotube article between the first and second conductive terminals from a relatively low resistance to a relatively high resistance, said stimulus circuitry configured to create a second voltage difference between the first conductive terminal and the second conductive terminal, to induce a change in the resistance of the nanotube article between the first and second conductive terminals from a relatively high resistance to a relatively low resistance, wherein the relatively high resistance of the nanotube article between the first and second conductive terminals corresponds to a first state of the two terminal switching device, and wherein the relatively low resistance of the nanotube article between the first and second conductive terminals corresponds to a second state of the two terminal switching device, wherein the first and second states of the two terminal switching device are nonvolatile.