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Solid State Drive(SSD)에 대한 가속열화시험 데이터 모델링 및 분석
문병민(Byeong Min Mun),최영진(Young Jin Choi),지유민(You Min Ji),이용중(Yong Jung Lee),이근우(Keun Woo Lee),나한주(Han Joo Na),양중섭(Joong Seob Yang),배석주(Suk Joo Bae) 한국신뢰성학회 2018 신뢰성응용연구 Vol.18 No.1
Purpose: Accelerated degradation tests can be effective in assessing product reliability when degradation leading to failure can be observed. This article proposes an accelerated degradation test model for highly reliable solid state drives (SSDs). Methods: We suggest a nonlinear mixed-effects (NLME) model to degradation data for SSDs. A Monte Carlo simulation is used to estimate lifetime distribution in accelerated degradation testing data. This simulation is performed by generating random samples from the assumed NLME model. Conclusion: We apply the proposed method to degradation data collected from SSDs. The derived power model is shown to be much better at fitting the degradation data than other existing models. Finally, the Monte Carlo simulation based on the NLME model provides reasonable results in lifetime estimation.