Multilayer Ceramic Capacitor Metal Nanostructures
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Solution Overview
Problem
Current multilayer ceramic electronic components face challenges in achieving high capacitance due to limitations in designing efficient structures between ceramic and internal electrode layers, particularly in reducing the interval between electrodes while increasing the surface area.
Innovation Solution
Incorporating metal nanostructures with a height less than the ceramic layer, which are cylindrical or star-shaped, made of the same material as the metal layer, to protrude into the ceramic layer, thereby reducing the interval between internal electrode layers and increasing the surface area, allowing for higher capacitance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Quantity of substance
If the thickness of the dielectric layer is thinned to increase the number of stacked layers, then the capacitance increases, but the manufacturing precision and structural stability deteriorate
Solution Approach 1:
The patent introduces metal nanostructures that protrude vertically into the dielectric layer from the internal electrode surface, transforming a two-dimensional electrode surface into a three-dimensional structure. This dimensional change increases the effective electrode surface area without requiring additional stacking layers, thereby increasing capacitance while maintaining manageable dielectric layer thickness and manufacturing precision.
Solution Approach 2:
The metal nanostructures create a porous-like three-dimensional surface morphology on the internal electrodes. This increased surface roughness and porosity provide greater surface area for capacitance formation while maintaining the same physical footprint, allowing high capacitance without excessive thinning of dielectric layers that would compromise manufacturing precision.
2Quantity of substance
If the interval between electrodes is reduced to increase capacitance, then the component size decreases, but the manufacturing difficulty increases
Solution Approach 1:
The patent applies local quality by creating metal nanostructures only at specific locations on the internal electrode surfaces where they protrude into the dielectric layer. This localized structural modification increases the surface area and reduces the effective interval between electrodes at critical points, enhancing capacitance without requiring complex overall structural redesign or uniform reduction of all dimensional parameters.
3Quantity of substance
If the surface area of electrodes is increased to increase capacitance, then the capacitance increases, but the component footprint increases
Solution Approach 1:
The patent resolves this contradiction by utilizing the vertical dimension through protruding metal nanostructures. Instead of expanding the electrode surface area horizontally (which would increase footprint), the structure extends vertically into the dielectric layer, increasing surface area within the existing component footprint and maintaining compact dimensions.
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 implementation of metal nanostructures effectively increases capacitance by reducing the interval between electrode layers and enhancing the surface area, resulting in a significant 290% increase in capacitance compared to traditional designs.
Implementation Method 1
The implementation of metal nanostructures effectively increases capacitance by reducing the interval between electrode layers and enhancing the surface area, resulting in a significant 290% increase in capacitance compared to traditional designs.
Data Source
AI summary
There are provided a ceramic sheet product for a ceramic electronic component, a multilayer ceramic electronic component using the same, and a method of manufacturing the multilayer ceramic electronic component. The ceramic sheet product for a ceramic electronic component includes a ceramic layer; a metal layer formed on the ceramic layer; and metal nanostructures contacting the metal layer and protruding from the metal layer to an inner portion of the ceramic layer. With the multilayer ceramic electronic component using the ceramic sheet product for a ceramic electronic component, an interval between electrodes is reduced to thereby allow for the increase of capacitance, whereby a multilayer ceramic electronic component having high capacitance may be provided.