Memory device
AssigneeAdvanced Micro Devices, Inc.
InventorsJuri H. Krieger, Nikolai Yudanov
Life of this patent
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Abstract
Disclosed is a memory storage and retreivel device containing (a) an electrically conductive first electrode; (b) an electrically conductive second electrode; and (c) a layer stack intermediate the first and second electrodes containing (d) at least one active layer containing at least one polymer with variable electrical conductivity; and (e) at least one passive layer containing a material for varying the electrical conductivity of the at least one active layer upon application of an electrical potential difference between the first and second electrodes.
Claims34
A memory storage and retrieval device, comprising:
- (a) an electrically conductive first electrode;
- (b) an electrically conductive second electrode;
- and
- (c) a layer stack intermediate said first and second electrodes, said layer stack comprising:
- (d) at least one active aver comprising at least one polymer material with variable electrical conductivity, said electrical conductivity of said at least one active layer is reversibly varied upon introduction of charged species thereinto and removed of said charged species therefrom;
- and
- (e) at least one passive layer comprised of a material for varying said electrical conductivity of said at least one active layer upon application of an electrical potential difference between said first and second electrically conductive electrodes, said at least one passive layer is comprised of a said material for reversibly donating said charged species to and accepting said charged species from said active layer.
A memory storage and retrieval device, comprising:
- an electrically conductive first electrode;
- an electrically conductive second electrode;
- and
- a layer stack intermediate said first and second electrodes, said layer stack compnsing:
- at least one active aver comprising at least one polymer material with variable electrical conductivity, said electrical conductivity of said at least one active layer is reversibly varied upon introduction of charged species thereinto and removed of said charged species therefrom;
- and
- at least one passive layer comprised of a material for varying said electrical conductivity of said at least one active layer upon application of an electrical potential difference between said first and second electrically conductive electrodes, said at least one passive layer is comprised of a said material for reversibly donating said charged species to and accepting said charged species from said active layer, said at least one passive layer comprises at least one super-ionic conductor material or intercalation compound.
A memory storage and retrieval device, comprising:
- an electrically conductive first electrode;
- an electrically conductive second electrode;
- and
- a layer stack intermediate said first and second electrodes, said layer stack comprising:
- at least one active layer comprising at least one polymer material with variable electrical conductivity, said electrical conductivity of said at least one active layer is reversibly varied upon introduction of charged species thereinto and removed of said charged species therefrom, said at least one polymer is selected from the group consisting of polyaniline, polythiophene, polypyrrole, polysilane, polystyrene, polyfuran, polyindole, polyazulene, polyphenylene, polypyridine, polybipyridine, polyphthalocyanine, poly(ethylenedioxythiophene) and polyacetylene;
- and
- at least one passive layer comprised of a material for varying said electrical conductivity of said at least one active layer upon application of an electrical potential difference between said first and second electrically conductive electrodes, said at least one passive layer is comprised of a said material for reversibly donating said charged species to and accepting said charged species from said active layer.
Dependencies are inferred from the claim text.