Multi-layer Ceramic Capacitor Electrode Taper for Position Accuracy
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing methods for producing multi-layer ceramic capacitors face challenges in accurately detecting deviations of internal electrodes from design positions, particularly during lamination and cutting processes, which affects insulation properties and environmental resistance, especially with the miniaturization of components.
Innovation Solution
A method involving the formation of internal electrode patterns with a narrow width portion on unsintered ceramic sheets, allowing for visual inspection to detect deviations by measuring the width dimensions of exposed cut surfaces, enabling precise adjustment of cut and lamination positions to enhance position accuracy.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Volume of moving object
If the multi-layer ceramic electronic component is miniaturized, then the component size is reduced, but the position accuracy of internal electrodes deteriorates
Solution Approach 1:
The patent applies local quality by creating a drawn portion with a specific tapered shape at a localized region of the internal electrode. This drawn portion has a width that gradually changes from a first width at the main electrode to a second width at the end surface, forming a distinct geometric feature that enables precise position detection without affecting the overall miniaturization of the component.
Solution Approach 2:
The patent employs asymmetry by designing the drawn portion with a non-uniform width profile along its length. The width transitions asymmetrically from the main electrode to the end surface, creating a unique geometric signature that facilitates accurate visual inspection and measurement of electrode position deviations.
2Volume of moving object
If the marker dimension is reduced for miniaturization, then the component size is reduced, but the detection accuracy of deviation amount deteriorates
Solution Approach 1:
The patent changes the geometric parameters of the internal electrode by incorporating a drawn portion with a specific width profile. Instead of using a separate marker, the electrode itself is designed with a tapered width that changes from a first width to a second width, creating an inherent measurement feature that maintains detection accuracy in miniaturized components.
Solution Approach 2:
The patent makes the internal electrode multi-functional by having it serve both its electrical function and its position indication function. The drawn portion of the electrode acts as both a conductive element and a visual reference for measuring position deviations, eliminating the need for separate markers and maintaining accuracy in miniaturized designs.
3Measurement precision
If visual inspection is performed on multiple surfaces, then the detection accuracy of deviation is improved, but the inspection time and cost increase
Solution Approach 1:
The patent extracts the position measurement function to a specific geometric feature (the drawn portion with tapered width) that is visible from a single end surface. By concentrating the measurement information in this exposed portion, the need to inspect multiple surfaces is eliminated, reducing inspection time and cost while maintaining detection accuracy.
Solution Approach 2:
The patent uses the width dimension of the drawn portion as a new measurement dimension for detecting position deviations. Instead of requiring inspection from multiple spatial surfaces, the varying width of the drawn portion provides positional information that can be measured from a single end surface, effectively converting a multi-surface problem into a single-surface measurement.
Data Source
AI summary
A multi-layer ceramic electronic component includes: first internal electrodes each including a first main electrode and a first drawn portion extending from the first main electrode to a first end surface facing in a first direction; and second internal electrodes each including a second main electrode and a second drawn portion extending from the second main electrode to a second end surface facing the first end surface in the first direction, the first and second internal electrodes being alternately laminated, the first drawn portion having a width dimension along a second direction that decreases toward the first end surface and having a predetermined width dimension in the first end surface, the second direction being orthogonal to the first direction, the second drawn portion having a width dimension along the second direction that increases toward the second end surface and having the predetermined width dimension in the second end surface.