Monolithic MLCC Structure for High Capacitance Density
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Solution Overview
Problem
Existing multilayered ceramic capacitors face challenges in miniaturization, leading to increased assembly costs and alignment issues, while maintaining improved volumetric efficiency and electrical properties.
Innovation Solution
A monolithic multilayered ceramic capacitor design with multiple capacitive couples encased in a continuous ceramic, featuring a ceramic separator between adjacent couples and active electrodes perpendicular to the circuit board, eliminating the need for leads and reducing failure modes.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Volume of stationary object
If individual MLCC's are assembled as stacks with common leads or leadless stacks, then volumetric efficiency is improved, but assembly complexity and cost increase due to alignment and bond integrity issues
Solution Approach 1:
The patent merges multiple capacitor units into a single monolithic structure where multiple capacitive couples are integrated within one continuous ceramic body. This eliminates the need for separate MLCC assemblies and their associated leads or leadless stacks, thereby improving volumetric efficiency while reducing assembly complexity to a single component installation.
Solution Approach 2:
The monolithic capacitor is segmented into multiple capacitive couples within a single structure, each with its own ceramic separator. This internal segmentation allows multiple capacitance values to be achieved in one component without requiring external stacking, resolving the contradiction by providing volumetric efficiency through integration while avoiding assembly complexity.
2Volume of stationary object
If further miniaturization of MLCC's is pursued, then volumetric efficiency is improved, but manufacturing cost and assembly difficulty increase
Solution Approach 1:
Multiple capacitor functions are merged into a single monolithic component manufactured in one process, eliminating the need for multiple miniaturized MLCC's that would require complex assembly. This approach achieves volumetric efficiency while maintaining ease of manufacture through conventional single-component fabrication techniques.
3Adaptability or versatility
If multiple independent capacitors are stacked, then functionality is improved, but alignment precision and bond integrity requirements increase
Solution Approach 1:
Multiple capacitive couples are merged into a single monolithic structure with internal ceramic separators, providing enhanced functionality through multiple capacitance values in one component. This eliminates alignment precision requirements between separate units, as all capacitive couples are precisely positioned within the single continuous ceramic body during manufacturing.
Data Source
AI summary
Provided is a monolithic multilayered ceramic capacitor comprising multiple capacitive couples encased in a continuous ceramic. The continuous ceramic further comprises a ceramic separator between adjacent capacitive couples. Each capacitive couple comprises active electrodes wherein first active electrodes of adjacent active electrodes of each capacitive couple are in electrical contact with a first external termination and second active electrodes of adjacent active electrodes of each capacitive couple are in electrical contact with a second external termination.