Stretchable Trace with Multi-Angle Segments for Stress Distribution
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Conventional stretchable electronic modules with single curved angles are inadequate in managing tensile stress across multiple directions, leading to potential damage and performance degradation when subjected to multi-directional stretching forces.
Innovation Solution
A tensile electronic module featuring a stretchable trace with multiple curved angles, composed of two arcs and at least three circular segments with varying central angles, connected between electrical components to distribute stress effectively across different directions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If a stretchable trace with a single curved angle is used, then the structure is simple and easy to manufacture, but it cannot effectively reduce tensile stress from multiple stretching directions
Solution Approach 1:
The stretchable trace is divided into multiple circular segments with different central angles (first circular segment with first central angle, second circular segment with second central angle, etc.) instead of using a single curved angle. This segmentation allows the trace to accommodate stress from multiple stretching directions while maintaining manufacturability through standardized circular arc designs
Solution Approach 2:
Different portions of the stretchable trace are assigned different curved angles locally. The first circular segment has a first central angle optimized for stress in one direction, while the second circular segment has a second central angle optimized for stress in another direction. This local differentiation of geometric properties enables multi-directional stress distribution
2Reliability
If a stretchable trace with multiple curved angles is used, then multi-directional tensile stress is reduced, but the structural complexity increases
Solution Approach 1:
The stretchable trace is divided into multiple circular segments with different central angles (first circular segment with first central angle, second circular segment with second central angle, etc.) instead of using a single curved angle. This segmentation allows the trace to accommodate stress from multiple stretching directions while maintaining manufacturability through standardized circular arc designs
Solution Approach 2:
The invention utilizes various curved angles (circular arcs) to design the stretchable trace. By employing different central angles in different circular segments, the curved geometry effectively distributes tensile stress from multiple directions, leveraging curvature to achieve stress reduction without requiring complex multi-component structures
Data Source
AI summary
A tensile electronic module and electronic device using the same are provided. The tensile electronic module includes two electrical components and a stretchable trace connected between the two electrical components. The stretchable trace includes two arcs and at least three circular segments. The circular segments are connected to each other and have at least two various central angles. Each of the arcs is configured at one end of the circular segments for respectively connecting with one of the electrical components. The tensile electronic module proposed in the invention achieves to reduce tensile stress of the stretchable trace in multiple directions and can be further applied to an electronic device which is stretchable or having a curved surface. Damages caused by stress accumulation when the stretchable trace is stretched in different directions are therefore avoided. Therefore, it is believed reliability and service life of the electronic device are greatly improved.