Multilayer Ceramic Condenser Alternating Electrode Stacking
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Solution Overview
Problem
Existing multilayer ceramic condensers face challenges in maintaining thickness uniformity of dielectric layers during miniaturization and high integration, leading to potential short-circuiting and reduced insulation resistance.
Innovation Solution
A method involving the alternated stacking of ceramic green sheets with stripe-type inner electrode patterns, followed by cutting and covering with ceramic slurry to form a multilayer main body with minimal dielectric layer steps, ensuring excellent connectivity and capacitance while maintaining uniform thickness.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Volume of moving object
If dielectric layers are thinned and highly stacked to achieve miniaturization, then the condenser size is reduced and integration is improved, but thickness uniformity of dielectric layers deteriorates leading to potential short-circuiting and reduced insulation resistance
Solution Approach 1:
The patent applies preliminary action by forming a laminate structure with precisely controlled alternated stacking of first and second dielectric layers before the actual condenser assembly. The laminate is prepared in advance with uniform thickness control, and inner electrode patterns are pre-formed on the dielectric layers. This preliminary preparation ensures thickness uniformity is maintained even when dielectric layers are thinned for miniaturization, preventing short-circuiting and maintaining insulation resistance.
2Quantity of substance
If inner electrode patterns are highly stacked to increase capacitance, then the capacitance value is improved, but the complexity of maintaining connectivity and thickness uniformity increases
Solution Approach 1:
The patent applies segmentation by dividing the condenser into a multilayer structure with alternating first and second dielectric layers, each containing inner electrode patterns. The laminate is segmented into multiple thin layers that are alternately stacked, with each layer contributing to the overall capacitance. This segmentation allows high stacking density for increased capacitance while maintaining manageable complexity through systematic alternation of layers and pre-formed electrode patterns.
Solution Approach 2:
The patent utilizes another dimension by transitioning from a single-layer or low-stack structure to a highly stacked multilayer configuration. The alternated stacking of first and second dielectric layers creates a three-dimensional layered architecture that maximizes capacitance within a compact volume. This dimensional approach allows numerous electrode patterns to be stacked vertically while maintaining connectivity through the alternating layer structure.
3Reliability
If dielectric layers are removed to improve accelerated life of insulation resistance, then the reliability is improved, but the manufacturing process complexity increases
Solution Approach 1:
The patent applies taking out by selectively removing or eliminating unnecessary dielectric layers from the structure. By extracting only the essential dielectric layers needed for insulation while removing excess layers, the patent improves accelerated life of insulation resistance. This extraction approach maintains reliability by preserving critical insulation functions while simplifying the overall structure and reducing manufacturing complexity compared to processing thick multi-layer structures.
Data Source
AI summary
Disclosed are a multilayer ceramic condenser and a method of manufacturing a multilayer ceramic condenser. There is provided a method of manufacturing a multilayer ceramic condenser, including: printing a plurality of stripe-type inner electrode patterns on a ceramic green sheet in parallel; forming a laminate by stacking ceramic green sheets on which a plurality of stripe-type inner electrode patterns are formed; cutting the laminate so that a first inner electrode pattern and a second inner electrode pattern are alternately stacked; and forming a first side part and a second side part by applying ceramic slurry in order to cover the side of the laminate to which both the first inner electrode pattern and the second inner electrode pattern are exposed.