Ceramic Electronic Component Thick Electrode Extraction
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Solution Overview
Problem
Conventional ceramic electronic components face challenges in improving performance due to thickness differences between electrode extraction and capacitance generation sections, leading to potential overlap issues and reduced dielectric breakdown voltage.
Innovation Solution
A ceramic electronic component design featuring internal electrodes with thick extraction sections that are strategically positioned to minimize overlap with opposed sections, maintaining a thickness ratio that enhances electrical connection reliability while preventing delamination, and optimizing manufacturing to maintain designed characteristics.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the electrode extraction section is made thicker to improve electrical connection reliability, then the connection reliability improves, but the thickness difference between extraction and capacitance generation sections increases causing overlap issues and reduced dielectric breakdown voltage
Solution Approach 1:
The patent applies local quality by making the extraction section of internal electrodes thicker than the capacitance generation section. This localized thickness variation improves electrical connection reliability at the extraction terminals while maintaining appropriate thickness in the capacitance generation section to preserve dielectric breakdown voltage and prevent overlap issues.
2Reliability
If the electrode extraction section is made thicker to ensure proper electrical connection, then the connection reliability improves, but the manufacturing precision becomes more difficult to control
Solution Approach 1:
The patent segments the internal electrode into two distinct functional sections: a capacitance generation section with standard thickness and an extraction section with increased thickness. This segmentation allows independent optimization of each section's dimensions, improving electrical connection reliability in the extraction section while maintaining manufacturing precision through clear dimensional specifications for each segment.
3Strength
If the thick extraction section is positioned to minimize overlap with opposed sections, then dielectric breakdown voltage is maintained, but the device complexity increases
Solution Approach 1:
The patent employs asymmetry in the electrode configuration by positioning the thick extraction sections of opposing electrodes at different locations along the stacking direction. This asymmetric arrangement minimizes overlap between thick sections of opposing electrodes, maintaining dielectric breakdown voltage while the systematic implementation keeps device complexity manageable.
Data Source
AI summary
In a ceramic electronic component, a section of a first extraction section located closer to a first end surface defines a first thick section. The first thick section is at least about 1.5 times as thick as a first central section of a first opposed section in a direction. The length of the first thick section is within the range of about ¼ to about ¾ of a distance from a tip of a second opposed section closer to the first end surface, to the first end surface in the direction.