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US 9,178,153 B2Granted
Memristor structure with a dopant source
AssigneeHewlett-Packard Development Company, L.P.
InventorsMinxian Max Zhang, Jianhua Yang, R. Stanley Williams
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Abstract
A memristor including a dopant source is disclosed. The structure includes an electrode, a conductive alloy including a conducting material, a dopant source material, and a dopant, and a switching layer positioned between the electrode and the conductive alloy, wherein the switching layer includes an electronically semiconducting or nominally insulating and weak ionic switching material. A method for fabricating the memristor including a dopant source is also disclosed.
Claims20
A memristor including:
- an electrode;
- a conductive alloy including a conducting material, a dopant source material, and a dopant;
- and
- a switching layer positioned between the electrode and the conductive alloy, wherein the switching layer includes an electronically semiconducting or nominally insulating and weak ionic switching material, wherein:
- the dopant source material is soluble in the conducting material;
- the dopant is soluble in the dopant source material;
- and
- and the free energy of formation of a compound including the dopant and the material comprising the dopant source material is more negative than the free energy of formation of a compound including the dopant and the material comprising the conducting material and less negative that the free energy of formation of a compound including the dopant and the material comprising the electrode.
5 more elements
A memristor, including:
- an electrode;
- a conductive alloy including a conducting material, a dopant source material dispersed in the conducting material, and a dopant dispersed in the dopant source material;
- and
- a switching layer positioned between the electrode and the conductive alloy, wherein the switching layer includes an electronically semiconducting or nominally insulating and weak ionic switching material.
1 more element
Dependencies are inferred from the claim text.