Patent ID: 8283649

Claim:
A memristor comprising: a substrate having a plurality of protrusions, wherein each of the plurality of protrusions extends in a first direction; a first electrode provided over at least one of the plurality of protrusions, wherein the first electrode conforms to the shape of the at least one protrusion such that the first electrode has a crest, wherein the crest has a substantially rounded peak; a switching material positioned upon the first electrode; a second electrode positioned upon said switching material such that a portion of the second electrode is substantially in line with the crest of the first electrode along the first direction, wherein an active region in the switching material is to be formed between the crest of the first electrode and the portion of the second electrode that is substantially in line with the crest of the first electrode; and a plurality of field concentration elements positioned between the first electrode and the second electrode, each of said plurality of field concentration elements having a tip that faces a direction that is substantially perpendicular to the first direction and toward each other.