Composite Oxide Capacitor Dielectric for High Capacitance and Breakdown Field
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Solution Overview
Problem
Existing capacitors using composite oxides face limitations in terms of capacitance and dielectric breakdown field, necessitating further improvements.
Innovation Solution
A capacitor design utilizing a dielectric material composed of O, Cs, W, and at least one of Ti, Zr, or Hf, with specific compositional and structural characteristics, enhancing both capacitance and dielectric breakdown field.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If conventional composite oxides are used as dielectric material, then the capacitor structure is simple and easy to manufacture, but the capacitance and dielectric breakdown field are limited
Solution Approach 1:
The patent uses a composite oxide dielectric material containing Cs, W, and at least one of Ti, Zr, or Hf. This composite material approach combines multiple elements to achieve both high capacitance and high dielectric breakdown field, resolving the contradiction between performance improvement and material complexity by selecting specific element combinations that work synergistically
Solution Approach 2:
The patent optimizes the compositional parameters of the dielectric material, specifically controlling the ratios of Cs, W, and the transition metals (Ti, Zr, Hf). By adjusting these chemical composition parameters, the patent achieves enhanced capacitance and dielectric breakdown field while maintaining manufacturability
2Ease of manufacture
If the dielectric material composition is simplified for ease of manufacture, then manufacturing cost decreases, but capacitance and dielectric breakdown field are compromised
Solution Approach 1:
The patent maintains relatively simple fabrication processes while optimizing the chemical composition parameters of the dielectric layer. The use of standard sputtering or chemical vapor deposition techniques with controlled stoichiometry allows ease of manufacture to be preserved while achieving high capacitance through precise compositional control of the Cs-W-transition metal oxide system
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The proposed capacitor achieves high capacitance and dielectric breakdown field, thereby increasing energy density.
Implementation Method 1
a capacitor comprising a first electrode, a second electrode, and a dielectric material disposed between the first electrode and the second electrode
Implementation Method 2
advantageous in terms of a capacitance and a dielectric breakdown field
Data Source
AI summary
The present disclosure provides a capacitor that is advantageous in terms of a capacitance and a dielectric breakdown field. According to the present disclosure, a capacitor comprises a first electrode, a second electrode, and a dielectric material. The dielectric material is disposed between the first electrode and the second electrode. The dielectric material comprises a composite oxide. The composite oxide is composed of O, Cs, W, and at least one selected from the group consisting of Ti, Zr, and Hf.