Multilayer Ceramic Capacitor Size Segmentation for Substrate Mounting
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Solution Overview
Problem
The challenge is to efficiently mount multilayer ceramic capacitors on reduced-size mounting substrates due to size mismatches between the capacitors and the substrates, which affects their effective utilization in electronic apparatuses.
Innovation Solution
The solution involves designing electronic components with specific laminate structures, including dielectric and inner electrode layers, and external electrodes that allow for efficient mounting on substrates with perpendicular edge portions, utilizing a fired layer and resin layer configuration to optimize size compatibility and reliability.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If multilayer ceramic capacitors with normalized sizes are used, then manufacturing and handling are simplified, but mounting efficiency on reduced-size substrates deteriorates due to size mismatch
Solution Approach 1:
The patent applies parameter changes by providing multilayer ceramic capacitors in multiple size specifications (0402, 0302, 0202, 0102 types) with varying length, width, and height dimensions. This allows selection of appropriate capacitor sizes to match different substrate areas, thereby improving mounting efficiency while maintaining standardized manufacturing processes for each size category.
2Volume of moving object
If mounting substrate size is reduced, then electronic apparatus size is minimized, but the number of mountable capacitors is limited due to area constraints
Solution Approach 1:
The patent applies segmentation by dividing the capacitor population into multiple size categories (0402, 0302, 0202, 0102 types) that can be mixed and matched on the same substrate. This segmentation allows optimal space utilization by placing smaller capacitors in limited areas while maintaining the total quantity of capacitors mounted, thus increasing the number of mountable components on reduced-size substrates.
3Quantity of substance
If capacitor size is reduced to increase quantity, then more capacitors can be mounted, but individual capacitor capacity and performance may deteriorate
Solution Approach 1:
The patent applies local quality by allowing different capacitor sizes and capacities to be used in different locations on the substrate based on local circuit requirements. Larger capacitors with higher capacity can be placed where more capacitance is needed, while smaller capacitors are used in space-constrained areas, thereby maintaining overall system reliability and performance while increasing the total number of capacitors mounted.
Data Source
AI summary
An electronic component is able to be mounted on a mounting substrate on which a first electronic component and a second electronic component are able to be mounted. When dimensions of the first electronic component and the second electronic component in a width direction is designated as W1 and W2, respectively, and dimensions of the first electronic component and the second electronic component in a length direction are designated as L1 and L2, respectively, dimensions of the electronic component in the width direction and the length direction are any one of combinations of W1 and L2, and of W2 and L1. The electronic component includes a third laminate and a pair of third external electrodes. Each of the pair of third external electrodes includes a fired layer, and a resin layer provided on an external surface of the fired layer.