Four-Terminal Electronic Component Orientation Identification
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Solution Overview
Problem
The orientation of four-terminal electronic components, such as capacitor modules, becomes difficult to determine when the center-to-center distances between their side electrodes are similar, making it challenging to mount them correctly on smaller mounting boards, especially when high precision imaging is required.
Innovation Solution
A four-terminal electronic component design featuring four external electrodes arranged such that the shape defined by joining their centers on the main surface forms a substantially square, with a linear orientation identifying mark passing through the intersection of diagonals, facilitating easy orientation determination using imaging devices.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Area of stationary object
If the center-to-center distances between side electrodes are made similar for miniaturization, then the mounting area is reduced, but the orientation determination becomes difficult
Solution Approach 1:
The patent applies asymmetry by configuring the four external electrodes such that they form a substantially square shape when their centers are joined, while introducing an asymmetric orientation identifying mark (such as a triangular mark or differentiating feature on one electrode) that breaks the rotational symmetry. This allows the component to maintain a compact square footprint for miniaturization while providing an asymmetric visual cue for easy orientation identification during mounting.
2Measurement precision
If high precision imaging is used to determine orientation, then accurate mounting is achieved, but the device complexity and cost increase
Solution Approach 1:
The patent employs visual differentiation through orientation identifying marks that can be detected by simple imaging devices. The marks may involve color differences, pattern variations, or geometric distinctions on one or more external electrodes, enabling orientation determination with standard imaging equipment rather than requiring high-precision specialized imaging systems.
3Volume of moving object
If the electrode arrangement is made symmetric for compactness, then the component size is reduced, but the mounting orientation becomes ambiguous
Solution Approach 1:
The patent segments the electrode configuration by distinguishing one electrode (or one side of the square arrangement) as having a unique orientation identifying mark, while the other electrodes remain relatively uniform. This segmentation creates a reference point that guides correct orientation during mounting, allowing the overall compact square geometry to be maintained while providing clear directional information.
Data Source
AI summary
An electronic component includes a substantially rectangular parallelepiped electronic component body and first to fourth external electrodes. The first to fourth external electrodes are arranged such that a shaped defined by joining the centers of portions of the first to fourth external electrodes on a first main surface with a substantially straight line is substantially square. The first main surface is provided with a substantially linear orientation identifying mark disposed thereon. The orientation identifying mark passes through an intersection of two diagonals of the substantially square shape and extends along the longitudinal direction or the width direction.