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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的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Coffin-Manson(C-M,基于塑性应变的低周疲劳模型)、Engelmaier(考虑温度循环频率的C-M修正模型)、Syed(基于蠕变能量密度的累积损伤模型)等经典模型的适用性与局限性。研究表明,Norris-Landzberg(N-L)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,为焊点寿命预测模型的选择与优化提供了理论依据,并对未来模型的完善方向提出了展望。

     

    Abstract: With the development of electronic devices towards high power density and miniaturization, the reliability of solder joints as critical interconnect structures has become increasingly prominent. This review systematically summarizes the research progress in reliability life prediction models for solder joints of electronic components, and compares the applicability and limitations of classical models such as Coffin-Manson (C-M, a low-cycle fatigue model based on plastic strain), Engelmaier (a C-M modified model considering temperature cycling frequency), and Syed model (a cumulative damage model based on creep energy density). It indicates that the Norris-Landzberg acceleration model, by simultaneously considering multiple variable parameters such as cycling frequency, temperature variation range, and maximum temperature, demonstrates unique advantages in characterizing the synergistic effects of complex thermal stress and temperature variation stress. After parameter modification, this model exhibits high predictive accuracy in the evaluation of storage life for electronic products, providing a theoretical basis for the selection and optimization of solder joint life prediction models, and offering insights into future directions for model improvement.

     

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