Amorphous BaSiO Spot for Visual Inspection of Ceramic Electronic Devices
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Solution Overview
Problem
Ceramic electronic devices, such as multilayer ceramic capacitors, require a new component for visual inspection and have a complex manufacturing process, making it difficult to determine product quality and identify specific faces based on external views.
Innovation Solution
A ceramic electronic device with a spot formed on a third face containing an amorphous phase of Ba, Si, and O, which can be used for visual inspection and testing, and a testing device that captures images of the device and compares them to stored standards to determine product quality and manufacturing conditions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If a new component is added for visual inspection, then product quality identification is improved, but device complexity and manufacturing process are worsened
Solution Approach 1:
The patent applies a colored coating layer on the external electrode to provide visual identification information. Different colors indicate different product specifications or types, enabling easy visual inspection without adding complex components. The coating is applied during the existing manufacturing process, avoiding additional complex steps.
Solution Approach 2:
The external electrode serves multiple functions: electrical connection and visual identification through the colored coating. This multi-functionality eliminates the need for separate identification components, reducing device complexity while maintaining inspection capability.
2Reliability
If electrical characteristic testing is performed, then product quality determination is improved, but testing time and process complexity are worsened
Solution Approach 1:
The colored coating is applied during the manufacturing process before final inspection, so that visual identification is already prepared. This preliminary action allows for quick visual screening without requiring time-consuming electrical testing for basic identification.
Solution Approach 2:
The patent replaces electrical characteristic testing with optical inspection using the colored coating. This substitution significantly reduces testing time while maintaining adequate quality determination for identification purposes.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
Simplifies the testing process by allowing visual inspection without electrical characteristic testing and confirms product type and manufacturing conditions, eliminating the need for additional components and simplifying the manufacturing process.
Implementation Method 1
a spot that is formed on a third face of the ceramic body that is different from the first face and the second face and is an amorphous phase including Ba, Si and O
Data Source
AI summary
A ceramic electronic device includes: a ceramic body that has a first face and a second face facing with the first face and has an internal electrode layer inside thereof; a pair of external electrodes that cover the first face and the second face; and a spot that is formed on a third face of the ceramic body that is different from the first face and the second face and is an amorphous phase including Ba, Si and O.