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设计孔隙以抑制蛇形连接器和弹性体之间的界面上的裂纹产生,用于高耐久度的可拉伸电子产品
Seungkyu Lee1, Jun Chang Yang2, Steve Park1
1Department of Materials Science and Engineering, Korea Advanced Institute of Science and Technology (KAIST), 34141, Republic of Korea. stevepark@kaist.ac.kr.
Materials horizons
|June 23, 2025
概括
聚合物矩阵中的工程孔可以防止蛇形互连的裂,增强可拉伸电子产品. 这提高了可伸缩LED阵列等设备的机械和电气稳定性.
科学领域:
- 材料科学 材料科学 材料科学
- 机械工程 机械工程
- 电气工程 电气工程
背景情况:
- 蛇形互连是可拉伸电子产品的关键,使刚性材料能够变形.
- 目前的研究重点是改善互联网的伸展性.
- 在聚合物封装的蛇形互连中,接口裂纹是一个主要的挑战.
研究的目的:
- 为了解决聚合物封装蛇形互连的接口裂纹.
- 为了提高可拉伸电子产品的机械和电气稳定性.
- 展示开发的战略的实际应用.
主要方法:
- 在围绕蛇形相互连接的聚合物矩阵中引入几何工程孔.
- 优化孔径几何结构以抑制裂.
- 评估机械性能 (故障时的应变,疲劳寿命) 和电稳定性.
- 制造和测试可伸缩发光二极管 (LED) 阵列和电热器.
主要成果:
- 通过几何工程设计的毛孔有效地抑制了在拉伸时的界面裂.
- 与没有毛孔的相比,带有优化毛孔的蛇形连接显示出更好的机械稳定性.
- 在存在优化毛孔的情况下,观察到更强的电稳定性.
- 使用开发的策略,成功展示了可伸缩的LED阵列和电热器.
结论:
- 在聚合物矩阵中的几何工程孔是一个可行的策略,以减轻蛇形相互连接中的界面裂纹.
- 这种方法显著提高了可伸缩电子设备的可靠性和性能.
- 这些发现为更坚固,更实用的可拉伸电子应用铺平了道路.
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