High performance capacitor with high dielectric constant material
First Claim
1. A capacitor, comprising:
- a top conductor layer of a conductive material;
a bottom conductor layer of said conductive material; and
at least one intermediate dielectric layer of a dielectric material disposed between said top layer and said bottom layer;
wherein said at least one intermediate dielectric layer is comprised of a dielectric material with a dielectric constant in the range 800 to 1,000,000; and
at least one interface layer comprised of a mix of said conductive material and said dielectric material disposed between said at least one intermediate dielectric layer and said top conductor layer or said bottom conductor layer.
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Accused Products
Abstract
A multilayered high performance capacitor formed of two or more conductors with a dielectric layer and one or more a dielectric-conductor interface layer sandwiched in between the conductors. The capacitor may be fabricated using many thin layers, at the nano level, providing a nanocapacitor. The capacitor may employ an interleaved structured where numerous conductor layers are interleaved with other conductor layers. The dielectric layers may be multilayered or a single layer and may consist of materials with high dielectric constants ranging from 800 to over 1 million, including materials in the perovskite-oxide family. The capacitor can be shaped, sized and the appropriate materials selected to obtain breakdown voltages within the range of 0.1 to over 11 MV/cm and to obtain specific energies and energy densities equivalent to or exceeding the power characteristics of known capacitors, fuel cells, and batteries. The nanocapacitor may be combined with other nanocapacitors to form stacks, packs, or grids of cells where the cells may be connected in series, parallel or both to provide increased energy or power characteristics.
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Citations
25 Claims
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1. A capacitor, comprising:
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a top conductor layer of a conductive material; a bottom conductor layer of said conductive material; and at least one intermediate dielectric layer of a dielectric material disposed between said top layer and said bottom layer;
wherein said at least one intermediate dielectric layer is comprised of a dielectric material with a dielectric constant in the range 800 to 1,000,000; andat least one interface layer comprised of a mix of said conductive material and said dielectric material disposed between said at least one intermediate dielectric layer and said top conductor layer or said bottom conductor layer. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. A capacitor, compromising:
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a top conductor layer of a conductive material; a bottom conductor layer of said conductive material; and at least one intermediate dielectric layer of a dielectric material disposed between said top layer and said bottom layer;
wherein said at least one intermediate dielectric layer is comprised of a dielectric material with a dielectric constant in the range of 800 to 1,000,000; andat least one intermediate conductor layer comprised of said conductive material disposed between a first intermediate dielectric layer and a second intermediate dielectric layer. - View Dependent Claims (10, 11, 12)
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13. A capacitor, comprising:
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a top conductor layer of a conductive material; a bottom conductor layer of said conductive material; at least one intermediate dielectric layer of a dielectric material disposed between said top layer and said bottom layer;
wherein said at least one intermediate dielectric layer is comprised of a dielectric material with a dielectric constant in the range 800 to 1,000,000;at least one interface layer comprised of a mix of said conductive material and said dielectric material disposed between said at least one intermediate dielectric layer and said top conductor layer or said bottom conductor layer; at least one intermediate conductor layer comprised of said conductive material disposed between a first intermediate dielectric layer and a second intermediate dielectric layer of said at least one intermediate dielectric layer; and wherein said capacitor produces specific energies in the range of 5-10,000 Whr/kg and said capacitor produces energy densities in the range of 20-76,000 Whr/l.
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14. A grid of capacitors interconnected, wherein each of said capacitors comprises:
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a top conductor layer of a conductive material; a bottom conductor layer of said conductive material; and at least one intermediate dielectric layer of a dielectric material disposed between said top layer and said bottom layer;
wherein said at least one intermediate dielectric layer is comprised of a dielectric material with a dielectric constant in the range 800 to 1,000,000; andat least one interface layer comprised of a mix of said conductive material and said dielectric material disposed between said at least one intermediate dielectric layer and said top conductor layer or said bottom conductor layer.
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15. A method of fabricating a multilayer capacitor, comprising the steps of:
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depositing a bottom conductor layer of a conductive material onto a substrate to form a capacitor device; heating the device; masking selected areas of the device; depositing an interface layer of an interface material mixture the device removing the maskant; heating the device; masking selected areas of the device; depositing a dielectric layer of a dielectric material on the device; removing the maskant; heating the device; depositing a top conductor layer of said conductive material on the device; and heating the device. - View Dependent Claims (16, 17, 18, 19, 20, 21, 22, 23, 24, 25)
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Specification