An Improved Algorithm for Drift Diffusion Transport and Its Application on Large Scale Parallel Simulation of Resistive Random Access Memory Arrays

Da-Wei Wang; Wenchao Chen; Wen-Sheng Zhao; Guo-Dong Zhu; Zhen-Guo Zhao; Jose E. Schutt-Aine; Wen-Yan Yin

doi:10.1109/ACCESS.2019.2902406

IEEE Access (Jan 2019)

An Improved Algorithm for Drift Diffusion Transport and Its Application on Large Scale Parallel Simulation of Resistive Random Access Memory Arrays

Da-Wei Wang,
Wenchao Chen,
Wen-Sheng Zhao,
Guo-Dong Zhu,
Zhen-Guo Zhao,
Jose E. Schutt-Aine,
Wen-Yan Yin

Affiliations

Da-Wei Wang: ORCiD; Key Laboratory of Advanced Micro-Nano Electronic Devices and Smart Systems of Zhejiang Province, College of Information Science and Electronic Engineering, Innovative Institute of Electromagnetic Information and Electronic Integration, Zhejiang University, Hangzhou, China
Wenchao Chen: Key Laboratory of Advanced Micro-Nano Electronic Devices and Smart Systems of Zhejiang Province, College of Information Science and Electronic Engineering, Innovative Institute of Electromagnetic Information and Electronic Integration, Zhejiang University, Hangzhou, China
Wen-Sheng Zhao: ORCiD; School of Electronics and Information, Hangzhou Dianzi University, Hangzhou, China
Guo-Dong Zhu: Key Laboratory of Advanced Micro-Nano Electronic Devices and Smart Systems of Zhejiang Province, College of Information Science and Electronic Engineering, Innovative Institute of Electromagnetic Information and Electronic Integration, Zhejiang University, Hangzhou, China
Zhen-Guo Zhao: Institute of Applied Physics and Computational Mathematics, Beijing, China
Jose E. Schutt-Aine: Electrical and Computer Engineering Department, University of Illinois at Urbana–Champaign, Urbana, IL, USA
Wen-Yan Yin: ORCiD; Key Laboratory of Advanced Micro-Nano Electronic Devices and Smart Systems of Zhejiang Province, College of Information Science and Electronic Engineering, Innovative Institute of Electromagnetic Information and Electronic Integration, Zhejiang University, Hangzhou, China

DOI: https://doi.org/10.1109/ACCESS.2019.2902406
Journal volume & issue: Vol. 7
pp. 31273 – 31285

Abstract

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A hybrid finite volume-finite element method which can avoid overestimation of volume shared by each vertex in the meshing grid is proposed to solve the diffusive transport governed continuity equation. The simulation results demonstrate that the improved algorithm can eliminate unphysical distortions as compared to the conventional Scharfetter Gummel method. Based on the proposed algorithm, a parallel-computation simulator is developed for large-scale electrothermal simulation of resistive random access memory (RRAM) arrays, in which the domain decomposition method and J parallel adaptive unstructured mesh applications infrastructure are adopted. The validity, speedup, and scalability of the parallel simulator are investigated on the TianHe-2 supercomputer. Based on the simulated results, the electrothermal characteristics and reliability analysis of large-scale RRAM arrays are investigated in detail.

Published in IEEE Access

ISSN: 2169-3536 (Online)
Publisher: IEEE
Country of publisher: United States
LCC subjects: Technology: Electrical engineering. Electronics. Nuclear engineering
Website: https://ieeexplore.ieee.org/xpl/RecentIssue.jsp?punumber=6287639

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