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Multi-state data storage leaving binary behind

Stepping 'beyond binary' to store data in more than just 0s and 1s

Date:
October 12, 2020
Source:
ARC Centre of Excellence in Future Low-Energy Electronics Technologies
Summary:
Electronic data is being produced at a breath-taking rate. Around ten zettabytes (ten trillion gigabytes) of data is stored in global server farms, and that's doubling every two years. With computing already consuming 8% of global electricity, low-energy data-storage is a key priority. Next-generation 'multi-state' memory offers a highly energy efficient, low-cost, fast-access solution: stepping 'beyond binary' to store more data than just zeros and ones.
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FULL STORY

Electronic data is being produced at a breath-taking rate.

The total amount of data stored in data centres around the globe is of the order of ten zettabytes (a zettabyte is a trillion gigabytes), and we estimate that amount doubles every couple of years.

With 8% of global electricity already being consumed in information and communication technology (ICT), low-energy data-storage is a key priority.

To date there is no clear winner in the race for next-generation memory that is non-volatile, has great endurance, highly energy efficient, low cost, high density, and allows fast access operation.

The joint international team comprehensively reviews 'multi-state memory' data storage, which steps 'beyond binary' to store more data than just 0s and 1s.

MULTI-STATE MEMORY: MORE THAN JUST ZEROES AND ONES

Multi-state memory is an extremely promising technology for future data storage, with the ability to store data in more than a single bit (ie, 0 or 1) allowing much higher storage density (amount of data stored per unit area.

This circumvents the plateauing of benefits historically offered by 'Moore's Law', where component size halved abut every two years. In recent years, the long-predicted plateauing of Moore's Law has been observed, with charge leakage and spiralling research and fabrication costs putting the nail in the Moore's Law coffin.

Non-volatile, multi-state memory (NMSM) offers energy efficiency, high, nonvolatility, fast access, and low cost.

Storage density is dramatically enhanced without scaling down the dimensions of the memory cell, making memory devices more efficient and less expensive.

NEUROMORPHIC COMPUTER MIMICKING THE HUMAN BRAIN

Multi-state memory also enables the proposed future technology neuromorphic computing, which would mirror the structure of the human brain. This radically-different, brain-inspired computing regime could potentially provide the economic impetus for adoption of a novel technology such as NMSM.

NMSMs allow analog calculation, which could be vital to intelligent, neuromorphic networks, as well as potentially helping us finally unravel the working mechanism of the human brain itself.

THE STUDY

The paper reviews device architectures, working mechanisms, material innovation, challenges, and recent progress for leading NMSM candidates, including:

  • Flash memory
  • magnetic random-access memory (MRAM)
  • resistive random-access memory (RRAM)
  • ferroelectric random-access memory (FeRAM)
  • phase-change memory (PCM)

Story Source:

Materials provided by ARC Centre of Excellence in Future Low-Energy Electronics Technologies. Note: Content may be edited for style and length.


Journal Reference:

  1. Qiang Cao, Weiming Lü, X. Renshaw Wang, Xinwei Guan, Lan Wang, Shishen Yan, Tom Wu, Xiaolin Wang. Nonvolatile Multistates Memories for High-Density Data Storage. ACS Applied Materials & Interfaces, 2020; 12 (38): 42449 DOI: 10.1021/acsami.0c10184

Cite This Page:

ARC Centre of Excellence in Future Low-Energy Electronics Technologies. "Multi-state data storage leaving binary behind." ScienceDaily. ScienceDaily, 12 October 2020. <www.sciencedaily.com/releases/2020/10/201012115937.htm>.
ARC Centre of Excellence in Future Low-Energy Electronics Technologies. (2020, October 12). Multi-state data storage leaving binary behind. ScienceDaily. Retrieved December 11, 2023 from www.sciencedaily.com/releases/2020/10/201012115937.htm
ARC Centre of Excellence in Future Low-Energy Electronics Technologies. "Multi-state data storage leaving binary behind." ScienceDaily. www.sciencedaily.com/releases/2020/10/201012115937.htm (accessed December 11, 2023).

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