Highly accurate and efficient prediction of effective thermal conductivity of sintered silver based on deep learning method

•Microstructure-based FE simulation was implemented to evaluate ETC of sintered Ag.•Database was created with actual microstructures and reliable FE simulated values.•The trained CNN can predict ETC of sintered Ag both accurately and efficiently.•Prediction accuracy of CNN outperforms analytical and machine learning models.•The model trained by sintered Ag dataset can be used to predict ETC of sintered Cu.