capacitor
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Solution Overview
Problem
There is a growing demand for capacitors with higher capacity to meet the needs of smaller and thinner electronic products, yet existing capacitors struggle to achieve this without compromising on size or reliability.
Innovation Solution
A capacitor design featuring a structure with multiple openings and electrodes, including a first and second internal electrode, a floating electrode, and external electrodes, utilizing anodizing aluminum oxide with insulating layers and dielectric layers to maximize surface area and distribute voltage, thereby increasing capacity and reducing breakdown risk.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Quantity of substance
If conventional capacitor structures are used, then manufacturing simplicity is maintained, but capacity is insufficient for modern electronic devices
Solution Approach 1:
The capacitor electrode structure is segmented into multiple distinct layers: first internal electrode, floating electrode, second internal electrode, first external electrode, and second external electrode. This segmentation allows each layer to perform specific functions, increasing overall capacitance while managing structural complexity through functional specialization.
Solution Approach 2:
The patent transitions from conventional planar electrode arrangements to a multi-dimensional stacked configuration with electrodes positioned at different heights and locations. The first and second internal electrodes are disposed at different positions relative to the porous structure, creating a three-dimensional electrode architecture that increases capacitance without proportionally increasing footprint area.
2Quantity of substance
If higher capacity capacitors are designed, then electronic device performance improves, but breakdown voltage decreases increasing failure risk
Solution Approach 1:
The voltage distribution is segmented across multiple electrode layers and dielectric interfaces. The first internal electrode, floating electrode, and second internal electrode create multiple dielectric breakdown paths, so that the total breakdown voltage is the sum of voltages across each interface, thereby increasing overall breakdown voltage while maintaining high capacitance.
Solution Approach 2:
The patent incorporates insulating layers at critical interfaces (first insulating layer between first internal electrode and floating electrode, second insulating layer between floating electrode and second internal electrode) to prevent premature breakdown. These insulating layers act as protective cushions that distribute and mitigate stress concentrations before they can cause catastrophic failure.
3Quantity of substance
If electrode surface area is increased to boost capacity, then manufacturing precision requirements increase
Solution Approach 1:
The patent applies different material properties and structural characteristics to different local regions: the porous structure provides high surface area in specific zones, insulating layers are applied selectively at critical interfaces, and electrodes are positioned at optimized locations. This local differentiation allows high capacitance through maximized surface area while maintaining manufacturability by concentrating precision requirements only where absolutely necessary.
4Volume of moving object
If compact capacitor designs are implemented, then electronic device size is reduced, but structural stress increases leading to higher failure likelihood
Solution Approach 1:
Insulating layers are strategically placed at interfaces between electrodes and porous structures to cushion and distribute mechanical stress before it can concentrate and cause failure. This protective layering maintains structural integrity in compact designs by preventing stress concentration points that would otherwise lead to cracking or delamination.
Solution Approach 2:
The capacitor employs a composite structure combining porous materials (for high surface area), conductive electrode materials, and insulating materials. This composite architecture provides both the compact size needed for modern devices and the structural strength required to withstand manufacturing and operational stresses, as each material contributes its optimal properties to the overall structure.
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 design achieves high capacity with enhanced breakdown voltage and reduced likelihood of failure due to structural stress, making it suitable for compact electronic devices.
Implementation Method 1
The structure may includes anodizing aluminum oxide
Implementation Method 2
The capacitor may further include a first opening side insulating layer that covers the first openings
Data Source
AI summary
A capacitor according to an aspect includes a structure that has a first surface where a plurality of openings are positioned, a first internal electrode that is disposed on at least a portion of the region where the plurality of openings are positioned, a floating electrode that is disposed on a partial region of the first internal electrode, a second internal electrode that is disposed on the floating electrode, a first external electrode that is disposed on the first surface and is connected to the first internal electrode, and a second external electrode that is disposed on the first surface and is connected to the second internal electrode.