Comparative analysis and evaluation of ageing forecasting methods for semiconductor devices in online health monitoring

• URL: http://arxiv.org/abs/2503.20403v1
• Date: Wed, 26 Mar 2025 10:24:20 GMT
• Title: Comparative analysis and evaluation of ageing forecasting methods for semiconductor devices in online health monitoring
• Authors: Adrian Villalobos, Iban Barrutia, Rafael Pena-Alzola, Tomislav Dragicevic, Jose I. Aizpurua,
• Abstract summary: The primary aging mechanism in discrete semiconductors and power modules is the bond wire lift-off, caused by crack growth due to thermal fatigue.<n>This research presents a comprehensive assessment of different forecasting methods for failure forecasting applications.
• Score: 0.0
• License: http://creativecommons.org/licenses/by-nc-nd/4.0/
• Abstract: Semiconductor devices, especially MOSFETs (Metal-oxide-semiconductor field-effect transistor), are crucial in power electronics, but their reliability is affected by aging processes influenced by cycling and temperature. The primary aging mechanism in discrete semiconductors and power modules is the bond wire lift-off, caused by crack growth due to thermal fatigue. The process is empirically characterized by exponential growth and an abrupt end of life, making long-term aging forecasts challenging. This research presents a comprehensive comparative assessment of different forecasting methods for MOSFET failure forecasting applications. Classical tracking, statistical forecasting and Neural Network (NN) based forecasting models are implemented along with novel Temporal Fusion Transformers (TFTs). A comprehensive comparison is performed assessing their MOSFET ageing forecasting ability for different forecasting horizons. For short-term predictions, all algorithms result in acceptable results, with the best results produced by classical NN forecasting models at the expense of higher computations. For long-term forecasting, only the TFT is able to produce valid outcomes owing to the ability to integrate covariates from the expected future conditions. Additionally, TFT attention points identify key ageing turning points, which indicate new failure modes or accelerated ageing phases.

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