High-temperature capacitors and methods of making the same
AssigneeGeneral Electric Company
InventorsDaniel Qi Tan, Yang Cao, Patricia Chapman Irwin, Donald Cunningham
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Abstract
High-temperature, multiple-layer polymer (MLP) capacitors with a stacked electrode arrangement are disclosed. The capacitor electrodes are separated by a polymer dielectric that is stable at high temperatures. In some embodiments, the polymer dielectric also has a high permittivity and is filled with high-permittivity nanoparticles, which enables the capacitor to achieve a very high capacitance density.
Claims23
A capacitor comprising:
- an electrode stack, including two or more electrodes disposed in a stacked configuration and a polymer dielectric disposed between each of the two or more electrodes;
- wherein the polymer dielectric is comprised of polyetherimide or cyanoethyl cellulose.
A power converting system, comprising:
- a power converter configured to receive DC power from a DC input bus and output a voltage to an output bus for powering a load;
- and
- one or more capacitors comprising an electrode stack that includes two or more electrodes disposed in a stacked configuration and a polymer dielectric disposed between each of the two or more electrodes;
- wherein the polymer dielectric includes of polyetherimide and/or cyanoethyl cellulose.
An electronic device, comprising:
- a first set of circuit components disposed on a bottom substrate configured to be soldered to a circuit board and provide electrical couplings between the bottom substrate and the circuit board;
- a second set of circuit components disposed on a top substrate configured to be soldered to the bottom substrate and provide electrical couplings between the top substrate and the bottom substrate;
- and
- one or more capacitors disposed on the bottom substrate and/or the top substrate adjacent to the first and/or second set of circuit components;
- wherein the capacitors are disposed on the top and/or bottom substrate before the top and bottom substrates are soldered.
A method of fabricating a capacitor, comprising:
- forming at least one polymer film;
- depositing a metal layer over the at least one polymer film;
- winding the at least one polymer film onto a drum to form an electrode stack comprising at least two layers of the polymer film;
- and
- cutting the electrode stack into several parallel-plate capacitors;
- wherein the polymer film includes polyetherimide and/or cyanoethyl cellulose.
A method of fabricating a capacitor, comprising:
- forming a polymer substrate on a silicon wafer;
- forming a bottom electrode over the polymer substrate;
- forming a polymer dielectric over the bottom electrode;
- and
- forming a top electrode over the polymer dielectric;
- wherein the wherein the polymer film includes polyetherimide and/or cyanoethyl cellulose.
Dependencies are inferred from the claim text.