Programmable metallization cells and methods of forming the same
AssigneeSeagate Technology LLC
InventorsVenkatram Venkatasamy, Ming Sun, Michael Xuefei Tang
Life of this patent
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Abstract
A programmable metallization cell (PMC) that includes an active electrode; a nanoporous layer disposed on the active electrode, the nanoporous layer comprising a plurality of nanopores and a dielectric material; and an inert electrode disposed on the nanoporous layer. Other embodiments include forming the active electrode from silver iodide, copper iodide, silver sulfide, copper sulfide, silver selenide, or copper selenide and applying a positive bias to the active electrode that causes silver or copper to migrate into the nanopores. Methods of formation are also disclosed.
Claims15
A programmable metallization cell (PMC) comprising:
- an active electrode;
- a nanoporous layer disposed on the active electrode, the nanoporous layer formed through formation and processing of a polymer selected from:
- polypyrrole, poly(3-methylothiophene), and polyaniline;
- and
- dispersed nanopores, wherein the nanopores are at least partially filled with material from the active electrode;
- and
- an inert electrode disposed on the nanoporous layer.
A programmable metallization cell (PMC) comprising:
- an active electrode, the active electrode having a thickness of about 50 Å to about 5000 Å, and the active electrode comprising silver iodide (AgI), silver sulfide (AgS), silver selenide (AgSe), copper iodide (CuI), copper sulfide (CuS), or copper selenide (CuSe);
- a nanoporous layer disposed on the active electrode, the nanoporous layer having a thickness of about 100 Å to about 500 Å, and wherein the nanoporous layer comprises:
- a continuous dielectric material, wherein the continuous dielectric material can comprise:
- polymers selected from:
- polypyrrole, poly(3-methylothiophene), and polyaniline;
- and
- dispersed nanopores, wherein the nanopores have diameters from about 2 nm to about 200 nm, and wherein the nanopores are at least partially filled with material from the active electrode;
- and
- an inert electrode disposed on the nanoporous layer, the inert electrode having a thickness of about 50 Å to about 5000 Å, and the inert electrode comprising tungsten (W), nickel (Ni), molybdenum (Mo), platinum (Pt), gold (Au), palladium (Pd), or rhodium (Rh).
A programmable metallization cell (PMC) comprising:
- an active electrode;
- a nanoporous layer disposed on the active electrode, the nanoporous layer formed through formation and processing of diblock polymers selected from:
- polypyrrole, poly(3-methylothiophene), and polyaniline;
- and
- an inert electrode disposed on the nanoporous layer.
Dependencies are inferred from the claim text.