Patent ID: 8470681

Claim:
A method for fabricating a resistor with bistable or multi-stable switchable resistance, said method comprising steps of: producing a first electrode; depositing a perturbation element on the first electrode; depositing an insulating dielectric structure with a confined conductive region through said insulating dielectric structure over the first electrode, the confined conductive region providing a first resistance state and a second resistance state and the resistance state of the confined conductive region being switchable between the first resistance state and the second resistance state by a control signal; wherein the perturbation element locally exerts mechanical stress on the insulating dielectric structure located in a vicinity of said perturbation element at least during forming of the confined conductive region; wherein a position of the confined conductive region is self-aligned to a position of the perturbation element; and depositing the second electrode facing the first electrode with the insulating dielectric structure at least partially contained between said first electrode and the second electrode, wherein said second electrode comprises a shape corresponding to a negative of a shape of said first electrode.