The correction method proposed in this paper could effectively eliminate measurement errors. The results showed that the aging effects of negative-bias temperature instability (NBTI) was the primary aging mechanism. In the experiment, 24 XILINX 7-series FPGAs (28 nm) were evaluated for 10+ years of circuit operation using accelerated tests. Furthermore, we employed four machine learning (ML) technologies that were based on accurate measurement datasets to predict FPGA aging trends. Moreover, we proposed a correction method to correct temperature-induced measurement errors in accelerated tests. For this, we used a ring oscillator (RO)-based test structure to extract data and build a dataset that could be used to predict aging trends and determine the primary aging mechanisms of 28-nm FPGAs. However, few studies have focused on understanding aging mechanisms or estimating the aging trend of 28-nm FPGAs. Aging results in FPGA performance degradation over time and, ultimately, hard faults. Although current generation FPGAs have advantages over previous models, the phenomenon of circuit aging has become more significant with the sharp reduction in the process size of FPGAs. Commercial off-the-shelf (COTS) field-programmable gate arrays (FPGAs) with a 28-nm process have become popular devices for computing systems.
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