Single layer electronic capacitors with very thin dielectrics and methods to produce same
OwnerLarry A. Liebowitzinventor
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Abstract
A SLC has a thin ceramic dielectric layer less than 0.0035 inches thick and as low as 0.0005 inches or less. Electrodes are thick and strong enough either singly or together to give the structure required physical strength for manufacture, handling, and usage. Electrodes are composed of (1) a ceramic metal composite, (2) a porous ceramic infiltrated with metal or other conductive material, (3) a resin filled with metal or other conductive material, or (4) combinations of the above. The very thin and, in itself, fragile dielectric layer provides exceedingly high capacity per unit area with temperature stability and low losses. A 0.00001-inch thick dielectric of titanium dioxide is also used.
Claims31
A single-layer capacitor (SLC), comprising:
- a first conductive electrode having a first planar face area;
- a second conductive electrode having a second planar face area, said face areas being parallel one to the other;
- a dielectric layer having a first planar surface and a second planar surface parallel to said first planar surface;
- said first planar face of said first electrode being in continuous contact with said first planar surface of said dielectric layer with low electrical resistance between them,
- said second planar face of said second electrode being in continuous contact with said second planar surface of said dielectric layer with low electrical resistance between them,
- wherein said dielectric has a thickness t between said first and second planar surfaces less than approximately 0.0025 inches, and said first electrode having a second face, at least a portion of said second face for making an external electrical connection to said portion, said second face of said first electrode being substantially parallel to said first face of said first electrode.
A method of producing a SLC having a planar dielectric layer sandwiched between first and second planar conductive electrodes, said sandwich of said dielectric and electrode layers together having a thickness not less than approximately 0.003 inches, said dielectric layer having a thickness not exceeding approximately 0.0015 inches, comprising the steps of:
- a) providing a planar precursor dielectric layer having opposed planar faces;
- b) connecting at least one said face of said precursor dielectric layer to a respective conductive electrode layer, said electrode layer being one of an electrode and a precursor to said electrode in said produced SLC;
- c) processing said connected layers by at least one of, chemical, thermal, and mechanical action to join said connected layers, to modify said precursor dielectric layer to said dielectric layer having said thickness not exceeding 0.0025 inches, and when using said precursor to said electrode layer to modify said electrode layer precursor to said SLC electrode.
Dependencies are inferred from the claim text.