Multilayer Ceramic Component Insulating Coating Parallel Mounting
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Solution Overview
Problem
Multilayer ceramic electronic components, such as three-terminal vertically laminated-type multilayer ceramic capacitors, often mount sloped on substrates due to thickness differences in external electrodes, making parallel mounting challenging.
Innovation Solution
The design includes a laminated body with a first external electrode and a pair of second external electrodes, along with insulating coating portions that extend to cover the electrodes, ensuring the maximum thickness of the insulating coating portions is greater than the external electrodes, allowing for parallel or substantially parallel mounting on a substrate.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If external electrodes have different thicknesses, then the component can be mounted in a sloped arrangement, but parallel mounting becomes difficult
Solution Approach 1:
An insulating coating is introduced as an intermediary layer between the external electrodes and the mounting surface. This coating has a thickness greater than that of the external electrodes, creating a compensated interface that enables parallel mounting despite electrode thickness variations. The insulating coating acts as a mediator that absorbs the thickness difference and provides a uniform mounting surface.
2Ease of operation
If insulating coating thickness is greater than external electrode thickness, then parallel mounting is enabled, but the component structure becomes more complex
Solution Approach 1:
The insulating coating serves multiple functions simultaneously: it provides electrical insulation between adjacent external electrodes, acts as a mechanical support layer for parallel mounting, and compensates for thickness variations in the external electrodes. By combining these functions into a single structural element, the design avoids additional complex components while achieving the desired mounting capability.
Data Source
AI summary
A multilayer ceramic electronic component includes a laminated body, a first external electrode, a pair of second external electrodes, and a pair of insulating coating portions. The insulating coating portions extend in a laminating direction between each of the second external electrodes and the first external electrode on a second principal surface, and from the second principal surface to respective portions of first and second side surfaces. A maximum thickness of the first external electrode on the second principal surface is larger than a maximum thickness for each of the second external electrodes on the second principal surface. A maximum thickness for each of the insulating coating portions on the second principal surface is larger than the maximum thickness of the first external electrode on the second principal surface.