双极切换特性和BST铁电薄膜的反应衰变效应,用于电阻应用的随机访问存储器件设备
Yao-Chin Wang1, Kai-Huang Chen2, Ming-Cheng Kao2
1Department of Electronic Engineering, Cheng Shiu University, Kaohsiung 83347, Taiwan.
Nanomaterials (Basel, Switzerland)
|April 25, 2025
概括
酸酸 (BST) 薄膜是为非挥发性RAM设备开发的. 这些铁电BST薄膜显示了对先进的内存应用有前途的电阻切换特性.
科学领域:
- 材料科学 材料科学 材料科学
- 固态物理 固态物理
- 电气工程 电气工程
背景情况:
- 铁电记忆材料对于非挥发性RAM至关重要.
- 酸酸 (BST) 是这些应用的有前途的候选物.
研究的目的:
- 为非易失性存储器设备合成和描述BST薄膜.
- 评估基于BST的内存电池的铁电和电阻切换特性.
主要方法:
- 在TiN/Si基板上进行BST薄膜沉积的Sol-gel方法.
- 快速的热,用于缺陷修复和再结晶.
- 用于结构和形态分析的XPS,XRD和SEM.
- 对Al/BST/TiN和Cu/BST/TiN内存设备的电气特性.
主要成果:
- 在回火后,BST片表现出所需的结晶和表面形态.
- /BST/TiN和Cu/BST/TiN设备显示出良好的记忆窗口,双极切换和非挥发性特征.
- 在重置状态下,衰变行为遵循一阶动力学:r=0.19[O2-]1.1.
结论:
- 对于非挥发性RAM应用,BST铁电薄膜是可行的.
- 制造的Cu/BST/TiN和Al/BST/TiN设备显示出出色的记忆性能.
- 基于BST的RRAM设备为未来的非易失性内存技术提供了可行的解决方案.
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