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电子元件焊点可靠性寿命预测模型研究进展

Research Progress on the Life Prediction Model of Solder Joint Reliability in Electronic Devices

  • 摘要: 随着电子设备向高功率密度与微型化方向发展,焊点作为关键互连结构,其可靠性问题日益凸显。本综述系统梳理了电子元器件焊点可靠性寿命预测模型的研究进展,对比分析了经典模型的适用性与局限性,如基于塑性应变的适用于低周疲劳预测的C-M模型、考虑温度循环频率的C-M修正模型(Engelmaier模型)和基于蠕变能量密度的累积损伤模型(Syed模型)等。研究表明,Norris-Landzberg加速模型通过同时考虑循环频率、温度变化范围和最高温度等多变量参数,在表征复杂温度应力与温变应力的协同效应方面展现出独特优势。经参数修正后,该模型在电子产品贮存寿命评估中表现出较高的预测精度,为焊点寿命模型的选择与优化提供参考,在此基础上,本文进一步讨论未来寿命预测模型的发展方向。未来可结合物理信息神经网络与数字孪生等方法,进一步提升Norris-Landzberg加速模型在多尺度和复杂工况下的预测精度与工程适用性。

     

    Abstract: With the development of electronic devices toward higher power density and miniaturization, the reliability of solder joints, which serve as critical interconnect structures, has become an increasingly important concern. This review systematically summarizes recent advances in life prediction models for solder joint reliability and compares the applicability and limitations of representative classical models, including the Coffin–Manson (C–M) model for low-cycle fatigue prediction based on plastic strain, the Engelmaier model as a modified C–M model incorporating the effect of thermal cycling frequency, and the Syed model as a cumulative damage model based on creep strain energy density. The results indicate that the Norris–Landzberg acceleration model exhibits distinct advantages in characterizing the synergistic effects of thermal stress and temperature-varying stress by simultaneously accounting for multiple parameters, including cycling frequency, temperature range, and maximum temperature. After parameter modification, this model demonstrates relatively high prediction accuracy in the storage-life assessment of electronic products, thereby providing a reference for the selection and optimization of solder joint life prediction models. On this basis, future development directions for life prediction models are further discussed. The integration of physics-informed neural networks and digital twin technologies is expected to further improve the prediction accuracy and engineering applicability of the Norris–Landzberg acceleration model under multiscale and complex operating conditions.

     

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