读取能量为 0.11pJ/bit 的嵌入式 NanoBridge 非易失性存储器及其在 28 纳米 32 位 RISC-V 微控制器单元中的集成

IF 1.5 4区物理与天体物理 Q3 PHYSICS, APPLIED

Japanese Journal of Applied Physics Pub Date : 2023-12-20 DOI:10.35848/1347-4065/ad1775

X. Bai, R. Nebashi, M. Miyamura, Kazunori Funahashi, K. Okamoto, Hideaki Numata, N. Iguchi, T. Sakamoto, M. Tada

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引用次数: 0

摘要

为高能效微控制器单元开发了 28 纳米 512KB 纳桥非易失性存储器。由于分电极 NanoBridge 的导通/导通比大，利用反相器感应方案实现了 0.11pJ/bit 的读取能量。与相同技术节点的 ReRAM 和 SONOS 商用嵌入式 NOR 闪存相比，读取能量分别降低了 71% 和 54%。此外，还制作了嵌入 2Mb NanoBridge 无电压存储器的 28 纳米 32 位 RISC-V 微控制器单元，并实现了 80MHz 的工作频率。

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A 0.11pJ/bit read energy embedded NanoBridge non-volatile memory and its integration in a 28nm 32-bit RISC-V microcontroller units

A 28nm 512Kb NanoBridge non-volatile memory is developed for an energy-efficient microcontroller unit. 0.11pJ/bit read energy is achieved by utilizing an inverter sense scheme thanks to large ON/OFF conductance ratio of a split-electrode NanoBridge. The read energy is 71% and 54% less than those of a ReRAM and a SONOS commercial embedded NOR Flash at the same technology node, respectively. Moreover, a 28nm 32-bit RISC-V microcontroller unit embedded with a 2Mb NanoBridge non-voltage memory is fabricated and achieves 80MHz operation frequency.

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来源期刊

Japanese Journal of Applied Physics 物理-物理：应用

CiteScore

3.00

自引率

26.70%

发文量

818

审稿时长

3.5 months

期刊介绍： The Japanese Journal of Applied Physics (JJAP) is an international journal for the advancement and dissemination of knowledge in all fields of applied physics. JJAP is a sister journal of the Applied Physics Express (APEX) and is published by IOP Publishing Ltd on behalf of the Japan Society of Applied Physics (JSAP). JJAP publishes articles that significantly contribute to the advancements in the applications of physical principles as well as in the understanding of physics in view of particular applications in mind. Subjects covered by JJAP include the following fields: • Semiconductors, dielectrics, and organic materials • Photonics, quantum electronics, optics, and spectroscopy • Spintronics, superconductivity, and strongly correlated materials • Device physics including quantum information processing • Physics-based circuits and systems • Nanoscale science and technology • Crystal growth, surfaces, interfaces, thin films, and bulk materials • Plasmas, applied atomic and molecular physics, and applied nuclear physics • Device processing, fabrication and measurement technologies, and instrumentation • Cross-disciplinary areas such as bioelectronics/photonics, biosensing, environmental/energy technologies, and MEMS