Stacked organic memory devices and methods of operating and fabricating
The present invention provides a multi-layer organic memory device that can operate as a non-volatile memory device having a plurality of stacked and/or parallel memory structures constructed therein. A multi-cell and multi-layer organic memory component can be formed with two or more electrodes having a selectively conductive media between the electrodes forming individual cells, while utilizing a partitioning component to enable stacking of additional memory cells on top of or in association with previously formed cells. Memory stacks can be formed by adding additional layers—respective layers separated by additional partitioning components, wherein multiple stacks can be formed in parallel to provide a high-density memory device.
1. A method of fabricating at least a first organic memory cell and a second organic memory cell arranged in a vertical manner with respect to each other comprising:
layering an organic material over a first electrode;
depositing a second electrode unto the organic material; and
depositing at least one partition component that isolates the first and second organic memory cells, the at least partition component facilitates access to at least one of the first organic memory cell and the second organic memory cell by being biased in a forward direction.
2. The method of claim 1 , further comprising depositing an antireflective coating on the at least one partition component.
3. The method of claim 1 , further comprising layering a conductivity facilitating passive material over the first electrode prior to layering the organic material.
4. The method of claim 3 , the passive material comprises one or more of copper sulfide, copper oxide, manganese oxide, titanium dioxide, indium oxide, silver sulfide, silver-copper-sulfide complex, gold sulfide, cerium sulfate, ammonium persulfate, iron oxide, lithium complexes, and palladium hydride.
5. The method of claim 1 , further comprising forming the second memory cell on top of the first in a vertical stack arrangement.
6. The method of claim 1 , further comprising etching vertical columns to form a plurality of memory cells.
7. The method of claim 6 , further comprising depositing a dielectric material between memory cells and planarizing the material to the surface of the diode.
8. The method of claim 7 , further comprising layering a word line over the memory cells.
9. The method of claim 6 , further comprising partitioning each memory cell with a partition component.
10. The method of claim 9 , further comprising forming a plurality of columns of memory devices to increase memory device density.
11. The method of claim 1 wherein the partition component further facilitates stacking of memory cells and at least one of reading from or writing to the organic material.
12. The method of claim 1 , the partition component comprises at least one of a diode, a thin-filmed diode (TFD), a zener diode, an LED, a transistor, a thin-filmed transistor (TFT), a Silicon Controlled Rectifier (SCR), Uni Junction Transistor (UJT), and a Field Effect Transistor (FET).
13. The method of claim 1 , the electrodes comprise at least one of copper, copper alloy, silver alloy, aluminum, chromium, germanium, gold, magnesium, manganese, indium, iron, nickel, palladium, platinum, titanium, zinc, alloys thereof, indium-tin oxide, polysilicon, doped amorphous silicon, metal silicides, copper-silver alloy, copper-zinc alloy Hastelloy®, Kovar®, Invar®, Monel®, Inconel®, brass, stainless steel, and magnesium-silver alloy.
14. A tangible computer-readable medium having stored thereon, instructions for fabricating at least a first organic memory cell and a second organic memory cell arranged in a vertical manner with respect to each other comprising:
instructions for layering an organic material over a first electrode;
instructions for depositing a second electrode unto the organic material; and
instructions for depositing at least one partition component that isolates the first and second organic memory cells, the at least partition component facilitates access to at least one of the first organic memory cell and the second organic memory cell by being biased in a forward direction.
15. The tangible computer-readable medium of claim 14 , further comprising instructions for depositing an antireflective coating on the at least one partition component.
16. The tangible computer-readable medium of claim 14 , further comprising instructions for layering a conductivity facilitating passive material over the first electrode prior to layering the organic material.
17. The tangible computer-readable medium of claim 14 , further comprising instructions for forming the second memory cell on top of the first in a vertical stack arrangement.
18. The tangible computer-readable medium of claim 14 , further comprising instructions for etching vertical columns to form a plurality of memory cells.
19. The tangible computer-readable medium of claim 14 , further comprising instructions for depositing a dielectric material between memory cells and planarizing the material to the surface of the diode.
20. The tangible computer-readable medium of claim 14 , further comprising instructions for layering a word line over the memory cells.