循环等离子体治疗,以提高大批导电电阻切换记忆的突触性能
Janguk Han1, Hyungjun Park1, Yoon Ho Jang1
1Department of Materials Science and Engineering and Inter-University Semiconductor Research Center, Seoul National University, Gwanak-ro 1, Daehag-dong, Gwanak-gu, Seoul 08826, Republic of Korea.
ACS applied materials & interfaces
|October 21, 2025
概括
循环等离子治疗 (CPT) 通过提高耐力和减少变化,增强了批量导电电阻切换记忆 (RSM). 这种方法对神经形态计算应用有前途.
科学领域:
- 材料科学 材料科学 材料科学
- 电气工程 电气工程
- 纳米技术纳米技术
背景情况:
- 等离子体治疗可以增强电导丝电阻切换记忆 (RSM).
- 大量导电RSM为神经形态计算提供模拟切换,但面临耐久性问题.
- 为了提高散装导体RSM性能,存在有限的策略.
研究的目的:
- 引入和评估循环等离子治疗 (CPT) 来增强散装导体RSM.
- 研究CPT对W/HfO2/TiN (WHT) RSM的耐力和变异性的影响.
- 评估CPT增强的RSM对神经形态计算任务的适用性.
主要方法:
- 开发了一种循环等离子治疗 (CPT),在HfO2沉积过程中使用周期性的Ar等离子暴露,通过等离子增强的原子层沉积.
- 制造和比较W/HfO2/TiN (WHT) RSM与没有CPT.
- 分析设备性能,包括耐久性,周期变化和设备变化.
主要成果:
- CPT显著提高了设备的耐用性,从10^4到10^6周期.
- 通过CPT,循环对循环和设备对设备的变化分别减少了77%和78%.
- 在MNIST分类模拟中,CPT处理的WHT RSM在MNIST分类模拟中实现了91.4%的准确性.
结论:
- 通过引入氧气空位,CPT有效地减轻了散装导体RSM中的切换降解.
- 增强的耐力和减少的变异使得CPT处理的RSM适合用于神经形态计算.
- CPT提出了一项可行的战略,用于推进散装导体电阻切换内存技术.
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