Multilayer Ceramic Capacitor Interposer Protrusion Bending Strength
Solution Overview
Problem
Multilayer ceramic capacitors with interposers face challenges in bending strength due to gaps between the capacitor and the board, leading to potential bending issues when the board is distorted.
Innovation Solution
The design incorporates interposers with protrusions extending from one to another on both sides of the capacitor main body, increasing the contact area and enhancing bending strength, while also featuring recess portions to manage solder and reduce acoustic noise.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-generated harmful factors
If an interposer is provided on the side of the capacitor main body mounted on a board, then acoustic noise is suppressed or prevented, but bending strength deteriorates due to gap between capacitor and board
Solution Approach 1:
The invention extends the interposer structure in the width direction by adding protrusions that bridge between opposite interposers. This dimensional extension creates additional contact points with the board, transforming the support structure from point-contact to line-contact, thereby improving bending strength while preserving the acoustic noise suppression function.
Solution Approach 2:
The protrusions act as intermediary elements that extend from one interposer to another, creating a continuous support structure. This intermediary structure fills the gap between the capacitor main body and the board, providing mechanical support and preventing bending while maintaining the acoustic isolation function of the interposers.
2Strength
If protrusions extend from one interposer to another, then bending strength is improved, but device complexity increases
Solution Approach 1:
The invention merges the functions of multiple interposers by connecting them with protrusions that extend between opposite interposers. This integration creates a unified support structure that provides both acoustic noise suppression and enhanced bending strength, reducing the need for separate reinforcement components.
Solution Approach 2:
The interposer structure is segmented into multiple functional zones: the main interposer bodies for acoustic isolation and the protruding portions for mechanical support. This segmentation allows each part to optimize its specific function while working together as a cohesive structure.
Data Source
AI summary
A multilayer ceramic capacitor includes a capacitor main body including a multilayer body including dielectric layers and internal electrode layers alternately laminated, and external electrodes each provided at one of two end surfaces of the multilayer body and connected to the internal electrode layers, and two interposers provided on both sides in a length direction of a surface of the capacitor main body. The two interposers each include a protrusion extending from one of the two interposers to another of the two interposers.