UltraRAM

UltraRAM is an emerging storage device technology and brand name that aims to "combine the non-volatility of a data storage memory, like flash, with the speed, energy-efficiency, and endurance of a working memory, like DRAM," which means it could retain data like a hard drive.[1] Silicon-based UltraRAM devices have demonstrated extrapolated data storage times (estimated lifespan based on testing) of at least 1,000 years and endurance up to 1,000 times greater than flash, offering significant potential improvements over existing memory technologies.[2]

It is being developed by researchers at Lancaster University’s Physics and Engineering Department, in collaboration with the University of Warwick’s Physics Department, who described it in a paper in 2022.[3]

Though initial experiments at Lancaster have demonstrated its principles, UltraRAM remains largely theoretical,[4] with ongoing efforts to improve quality, refine fabrication, and scale the technology for practical use.[5] Additionally, the array-level simulations has been demonstrated to highlight the promise of this technology.[6] [7]

Schematic cross-section of a device with corresponding material layers. (Image credit: Lancaster University)
  1. ^ "Mass production of revolutionary computer memory moves closer with ULTRARAM on silicon wafers for the first time". ScienceDaily. Retrieved 2022-04-08.
  2. ^ Hayne, Manus (2022). "ULTRARAM: Toward the Development of a III–V Semiconductor, Nonvolatile, Universal Memory". Advanced Electronic Materials. 8 (5): 2100923. doi:10.1002/aelm.202100923.
  3. ^ Hodgson, Peter D.; Lane, Dominic; Carrington, Peter J.; Delli, Evangelia; Beanland, Richard; Hayne, Manus (2022-01-05). "ULTRARAM: A Low-Energy, High-Endurance, Compound-Semiconductor Memory on Silicon". Advanced Electronic Materials. 8 (4): 2101103. doi:10.1002/aelm.202101103. ISSN 2199-160X. S2CID 248070399.
  4. ^ "'UltraRAM' breakthrough could merge storage and RAM into one component". PCWorld. Retrieved 2022-04-08.
  5. ^ Mark Tyson (2022-01-10). "UltraRAM Breakthrough Brings New Memory and Storage Tech to Silicon". Tom's Hardware. Retrieved 2022-04-08.
  6. ^ Kumar, Abhishek (2024). "A Physics-based Compact Model for ULTRARAM Memory Device". IEEE EDTM: 1–3. doi:10.1109/EDTM58488.2024.10512293.
  7. ^ Kumar, Abhishek (2024). "Compact Modeling of Compound Semiconductor Memory ULTRARAM: A Universal Memory Device". 2024 Device Research Conference (DRC). doi:10.1109/DRC61706.2024.10605295.

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