微电子的权力定律可靠性绘图
1Department of Electrical and Electronic Engineering, Ariel University, Ariel 40700, Israel.
Micromachines
|September 27, 2025
概括
修订功率定律时间图改进了微电子可靠性预测. 新的方法确保准确地推断出时间到故障数据,避免使用现有技术过度乐观或悲观的结果.
科学领域:
- 材料科学 材料科学 材料科学
- 电气工程 电气工程
- 可靠性工程可靠性工程
背景情况:
- 当前微电子可靠性分析经常使用功率定律时间绘图.
- 这种方法假设退化遵循功率定律,根据初始参数值 (S0) 推断出时间到故障.
- 不准确的S0值可能导致显著夸大或低估的寿命预测.
研究的目的:
- 为可靠性预测重新审视和改进功率定律时间绘图.
- 开发一种更准确的方法来推断微电子中的时间到故障.
- 为了解决目前依赖于精确初始指标值的方法的局限性.
主要方法:
- 将 x 轴转换为时间,提升为 1/m 的次数.
- 通过将一个多项式的二次项设置为零来确定指数'm'.
- 使用对二次多项式的线性拟合来找到正确的时间功率.
主要成果:
- 拟议的转换产生了更准确的可靠性预测.
- 在加速测试条件下实现了现实的时间到故障估计.
- 展示了一种独立于特定物理模型的数据绘图的经验方法.
结论:
- 修订后的绘图原理为微电子可靠性分析提供了更强大的方法.
- 准确的权力定律指数的确定对于可靠的寿命预测至关重要.
- 这种经验方法提高了基于降解数据的组件寿命的可预测性.
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