Acoustic Wave Component Terminal Layout for Shock Resistance
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Solution Overview
Problem
Electronic components with acoustic wave elements mounted on substrates are prone to damage when subjected to shocks due to inadequate terminal design, leading to low reliability.
Innovation Solution
The electronic component features a substrate with a quadrangular shape and strategically positioned terminals, where larger terminals are placed adjacent to corners and smaller terminals are positioned between them, distributing shock and enhancing structural integrity.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If terminals are uniformly sized and positioned on the substrate, then manufacturing is simple, but shock resistance is poor causing component damage
Solution Approach 1:
The patent applies local quality by making terminal sizes non-uniform: first terminals at corner positions have larger areas than second terminals at side positions. This local differentiation optimizes shock resistance at critical corner locations while maintaining simpler terminal configurations at less vulnerable side positions, resolving the contradiction between reliability and device complexity.
2Reliability
If larger terminals are used throughout, then shock resistance improves, but manufacturing precision requirements increase
Solution Approach 1:
The patent implements local quality by specifying that only first terminals at corner positions have larger areas, while second terminals at side positions have smaller areas. This localized approach concentrates manufacturing precision requirements only where structurally necessary (corner terminals), rather than requiring high precision across all terminals, thus resolving the contradiction between reliability and manufacturing precision.
3Reliability
If terminals are positioned only at corners, then shock distribution is simplified, but electrical connection versatility decreases
Solution Approach 1:
The patent merges the functions of corner positioning (for shock resistance) and side positioning (for electrical versatility) by placing first terminals at corners and second terminals at side positions. This combination allows the component to achieve both good shock distribution through corner terminals and enhanced electrical connection versatility through additional side terminals, resolving the contradiction between reliability and adaptability.
Data Source
AI summary
An electronic component includes a first substrate having a substantially quadrangular planar shape and having a first surface and a second surface, the first surface and the second surface being opposite to each other, an element disposed on the first surface, four first terminals located adjacent to four corners on the second surface, respectively, and a second terminal located between the first terminals at respective ends of each of two sides opposite to each other of the second surface, an area of the second terminal being smaller than an area of each of the first terminals at the respective ends of each of the two sides, a width of the second terminal in an extension direction of each of the two sides being equal to or less than a width of each of the first terminals at the respective ends of each of the two sides in the extension direction.