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US 2019/0198245 A1Published application
Ceramic-polymer composite capacitors and manufacturing method
AssigneeSabic Global Technologies B.V.
InventorsMark Sanner, Neal Pfeiffenberger
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Abstract
Capacitors including ceramic composite materials, and associated methods are shown. In selected examples, ceramic materials for capacitor dielectrics are processed at low temperatures that permit incorporation of low temperature components, such as polymer components.
Claims28
A capacitor, comprising:
- a first electrode, and a second electrode;
- a composite dielectric material located between the first electrode and the second electrode, wherein the composite dielectric material includes:
- a cold sintered first phase component;
- and
- a self-healing polymer second phase component.
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A flexible capacitor, comprising:
- a first electrode, and a second electrode;
- a fracture resistant composite dielectric material located between the first electrode and the second electrode, wherein the composite dielectric material includes:
- a cold sintered first phase component;
- a self-healing polymer second phase component, wherein the self-healing polymer second phase component lowers the modulus of elasticity of the fracture resistant composite dielectric material;
- wherein the first electrode, second electrode, and flexible composite dielectric material form a planar stack;
- and
- a first end connection coupled to the first electrode and a second end connection coupled to the second electrode on two sides of the planar stack, wherein the planar stack is suspended between the first end connection and the second end connection, and allowed to flex.
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A method of forming a capacitor, comprising:
- assembling an amount of a powder, including a cold sinterable ceramic powder and a polymer powder;
- applying an activating solvent to the amount of powder;
- applying sufficient heat and pressure to activate sintering of the powder below a destructive temperature of the polymer powder to form a cold sintered composite dielectric material;
- and
- locating the cold sintered composite dielectric material between at least two electrodes to form a capacitor.
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Dependencies are inferred from the claim text.