期刊
ACS APPLIED MATERIALS & INTERFACES
卷 12, 期 38, 页码 42449-42471出版社
AMER CHEMICAL SOC
DOI: 10.1021/acsami.0c10184
关键词
nonvolatile memory; multistates; multilevel; high-density storage; in-memory computing; brainlike computing
资金
- National Natural Science Foundation of China [51871112, 11974145]
- 111 Project [B13029]
- Shandong Provincial Natural Science Foundation [ZR2018MA035]
- ARC Professional Future Fellowship [FT130100778]
- ARC Centre of Excellence in Future Low-Energy Electronics Technologies [CE170100039]
- Australian Research Council [DP190103316]
- Nanyang Assistant professorship grant from Nanyang Technological University
- Academic Research Fund Tier 1 from Singapore Ministry of Education [RG108/17, RG177/18]
- Academic Research Fund Tier 3 from Singapore Ministry of Education [MOE2018-T3-1-002]
In the current information age, the realization of memory devices with energy efficient design, high storage density, nonvolatility, fast access, and low cost is still a great challenge. As a promising technology to meet these stringent requirements, nonvolatile multistates memory (NMSM) has attracted lots of attention over the past years. Owing to the capability to store data in more than a single bit (0 or 1), the storage density is dramatically enhanced without scaling down the memory cell, making memory devices more efficient and less expensive. Multistates in a single cell also provide an unconventional in-memory computing platform beyond the Von Neumann architecture and enable neuromorphic computing with low power consumption. In this review, an in-depth perspective is presented on the recent progress and challenges on the device architectures, material innovation, working mechanisms of various types of NMSMs, including flash, magnetic random-access memory (MRAM), resistive random-access memory (RRAM), ferroelectric random-access memory (FeRAM), and phase-change memory (PCM). The intriguing properties and performance of these NMSMs, which are the key to realizing highly integrated memory hierarchy, are discussed and compared.
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