Programmable metallization cells and methods of forming the same
AssigneeSeagate Technology LLC
InventorsVenkatram Venkatasamy, Ming Sun, Michael Xuefei Tang
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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.
Claims9
A programmable metallization cell (PMC) comprising:
- an active electrode comprising silver iodide (AgI), silver sulfide (AgS), silver selenide (AgSe) copper iodide (CuI), copper sulfide (CuS), or copper selenide (CuSe);
- a sink layer disposed on the active electrode, the sink layer comprising silver (Ag) or copper (Cu);
- 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
- wherein the sink layer is disposed between the nanoporous layer and the active electrode, and wherein material from the active electrode at least partially fills the nanopores after application of a positive voltage on the active electrode.
Dependencies are inferred from the claim text.