基于神经网络的集成电路芯片全生命周期寿命预测方法

By constructing a dual-track BIST architecture and an improved neural network, and combining the Wisfeld-Lyman algorithm to extract chip physical structure features, the problems of data source distortion and insufficient model fitting ability in the lifetime prediction of high-density integrated circuit chips are solved. This achieves accurate lifetime prediction and a self-healing mechanism, and improves the reliability of the prediction results.

CN122220794BActive Publication Date: 2026-07-17JIANGNAN UNIV +1
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
JIANGNAN UNIV
Filing Date
2026-05-15
Publication Date
2026-07-17

AI Technical Summary

Technical Problem

Existing chip lifetime prediction technologies suffer from problems such as data source distortion, missing structural features, and insufficient model fitting ability in high-density integration environments. This leads to deviations between prediction results and actual conditions, making it difficult to capture the nonlinear degradation patterns under multi-parameter coupling.

Method used

A neural network-based approach is adopted to acquire multi-source data by constructing a dual-track on-chip self-test (BIST) architecture, extracting chip physical structure features using the Wisfeld-Lehman algorithm, combining simulation data augmentation technology, and constructing an improved neural network for accurate lifetime prediction, thereby realizing a system-level self-healing mechanism.

Benefits of technology

It enables accurate prediction and management of the lifespan of high-density integrated circuit chips, improves the generalization level of the model and the credibility of the prediction results, solves the accuracy problem of complex structure mapping and nonlinear prediction, and provides system-level safe and reliable closed-loop protection.

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Abstract

本发明公开了一种基于神经网络的集成电路芯片全生命周期寿命预测方法,属于半导体集成电路可靠性测试与机器学习技术领域。所述方法通过引入WL图算法将3D物理结构转化为可计算特征向量,并配合改进型RNN及自注意力机制精准捕捉多物理场耦合下的非线性退化规律,大幅提升了对不同封装结构热应力风险的评估能力;其次,利用双轨制BIST硬件实测数据与仿真增强数据的深度融合,构建了全覆盖的训练集,增强了模型的泛化水平;最后,构建了系统级的安全可靠闭环,凭借的失效检测与寿命预测系统自愈机制解决了模型自身不可靠的问题,提高了芯片全生命周期内预测结果的可信度,为高价值芯片的视情维护提供了坚实保障。
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Citation Information

Patent Citations

  • Chip service life detection method and service life prolonging method

    CN119511030A

  • Integrated circuit aging effect prediction and circuit life reliability evaluation method

    CN121766235A