Multilayer Ceramic Capacitor Vertical Mounting for High Density
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Solution Overview
Problem
There is a need to miniaturize and increase the capacitance of multilayer ceramic capacitors to meet the demands of miniaturized and multi-functional electronic devices, particularly in high frequency applications, while ensuring effective noise removal and efficient mounting on circuit boards.
Innovation Solution
A multilayer ceramic capacitor design with a ceramic body having dielectric layers stacked in a thickness direction, internal electrodes with lead parts exposed on side surfaces, and external electrodes connected to these lead parts, covered by an insulating layer, which allows for increased capacitance and secure mounting on a printed circuit board with improved mounting density.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Volume of moving object
If the multilayer ceramic capacitor is miniaturized to meet the demand for smaller electronic devices, then the device size is reduced, but the capacitance increases and mounting density improves
Solution Approach 1:
The patent changes the mounting orientation from horizontal to vertical (standing upright), utilizing the height dimension of the capacitor body. This dimensional change allows the capacitor to achieve higher mounting density and effective capacitance per unit area on the circuit board, resolving the contradiction between miniaturization and capacitance requirement.
2Volume of moving object
If the capacitor is miniaturized for high frequency applications, then the device size is reduced, but the noise removal effectiveness must be maintained
Solution Approach 1:
By mounting the capacitor vertically and extending external electrodes to the main surface, the patent creates optimal electrical connection paths that effectively bypass high frequency noise while maintaining compact dimensions. This dimensional reconfiguration improves noise removal performance without increasing device size.
3Productivity
If the external electrodes are extended to the main surface, then the mounting density is improved, but the device complexity increases
Solution Approach 1:
The patent employs asymmetric electrode configuration where external electrodes are selectively extended to the main surface based on functional requirements. This asymmetric design optimizes mounting density for high-frequency applications while avoiding unnecessary complexity in structures that do not require such extensions.
Data Source
AI summary
There is provided a multilayer ceramic capacitor including: a ceramic body including dielectric layers and satisfying T/W>1.1 when a width thereof is defined as W and a thickness thereof is defined as T; first internal electrodes each having a first lead part exposed to at least one side surface of the ceramic body; second internal electrodes each having a second lead part exposed to the at least one side surface of the ceramic body; first and second external electrodes electrically connected to the first lead part and the second lead part, respectively, and extended from the side surface of the ceramic body to which the first lead part and the second lead part are exposed to at least one of the first and second main surfaces; and an insulating layer formed to cover the first and second external electrodes formed on the first and second side surfaces.