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Long-Term Lifetime Prediction of Power MOSFET Devices Based on LSTM and GRU Algorithms

Author

Listed:
  • Mesfin Seid Ibrahim

    (Centre for Advances in Reliability and Safety, New Territories, Hong Kong
    Kombolcha Institute of Technology, Wollo University, Kombolcha P.O. Box 208, Ethiopia)

  • Waseem Abbas

    (Centre for Advances in Reliability and Safety, New Territories, Hong Kong)

  • Muhammad Waseem

    (Centre for Advances in Reliability and Safety, New Territories, Hong Kong
    Department of Electrical and Electronic Engineering, The Hong Kong Polytechnic University, Hung Hom, Hong Kong)

  • Chang Lu

    (Centre for Advances in Reliability and Safety, New Territories, Hong Kong)

  • Hiu Hung Lee

    (Centre for Advances in Reliability and Safety, New Territories, Hong Kong)

  • Jiajie Fan

    (Institute of Future Lighting, Academy for Engineering & Technology, Fudan University, Shanghai 200433, China
    Shanghai Engineering Technology Research Center for SiC Power Device, Fudan University, Shanghai 200433, China
    Institute of Wide Bandgap Semiconductor Materials and Devices, Research Institute of Fudan University in Ningbo, Fudan University, Ningbo 315336, China)

  • Ka-Hong Loo

    (Centre for Advances in Reliability and Safety, New Territories, Hong Kong
    Department of Electrical and Electronic Engineering, The Hong Kong Polytechnic University, Hung Hom, Hong Kong)

Abstract

Predicting the long-term lifetime of power MOSFET devices plays a central role in the prevention of unprecedented failures for power MOSFETs used in safety-critical applications. The various traditional model-based approaches and statistical and filtering algorithms for prognostics have limitations in terms of handling the dynamic nature of failure precursor degradation data for these devices. In this paper, a prognostic model based on LSTM and GRU is developed that aims at estimating the long-term lifetime of discrete power MOSFETs using dominant failure precursor degradation data. An accelerated power cycling test has been designed and executed to collect failure precursor data. For this purpose, commercially available power MOSFETs passed through power cycling tests at different temperature swing conditions and potential failure precursor data were collected using an automated curve tracer after certain intervals. The on-state resistance degradation data identified as one of the dominant failure precursors and potential aging precursors has been analyzed using RNN, LSTM, and GRU-based algorithms. The LSTM and GRU models have been found to be superior compared to RNN, with MAPE of 0.9%, 0.78%, and 1.72% for MOSFET 1; 0.90%, 0.66%, and 0.6% for MOSFET 5; and 1.05%, 0.9%, and 0.78%, for MOSFET 9, respectively, predicted at 40,000 cycles. In addition, the robustness of these methods is examined using training data at 24,000 and 54,000 cycles of starting points and is able to predict the long-term lifetime accurately, as evaluated by MAPE, MSE, and RMSE metrics. In general, the prediction results showed that the prognostics algorithms developed were trained to provide effective, accurate, and useful lifetime predictions and were found to address the reliability concerns of power MOSFET devices for practical applications.

Suggested Citation

  • Mesfin Seid Ibrahim & Waseem Abbas & Muhammad Waseem & Chang Lu & Hiu Hung Lee & Jiajie Fan & Ka-Hong Loo, 2023. "Long-Term Lifetime Prediction of Power MOSFET Devices Based on LSTM and GRU Algorithms," Mathematics, MDPI, vol. 11(15), pages 1-23, July.
  • Handle: RePEc:gam:jmathe:v:11:y:2023:i:15:p:3283-:d:1202978
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