使用Hf-Zr-O铁电道连接器,实验演示了每个开关0.75位的组合编码内容可定位存储器
Manh-Cuong Nguyen1, Jiwon You2, Yonguk Sim3
1Department of Materials Science and Engineering 3-D Convergence Center, Inha University, Incheon 22212, Korea. rino.choi@inha.ac.kr.
Materials horizons
|May 1, 2024
概括
我们开发了用于更密集的数据存储的组合编码内容可定位存储器 (CECAM). 这种使用铁电道连接的新方法与传统方法相比,显著增加了内容密度.
科学领域:
- 材料科学 材料科学 材料科学
- 电气工程 电气工程
- 计算机科学 计算机科学
背景情况:
- 内容可定位存储器 (CAM) 对于高效的数据检索至关重要.
- 现有的CAM技术在数据密度和功耗方面存在局限性.
- 铁电材料为非挥发性和低功耗内存应用提供了潜力.
研究的目的:
- 为了展示一种新的组合编码内容可定位存储器 (CECAM) 概念.
- 与现有的CAM设备相比,实现显著更高的数据存储密度.
- 为了验证CECAM的性能,使用铁电道结 (FTJ) 交叉杆阵列.
主要方法:
- 一个CECAM架构的制造和实验验证.
- 在横杆阵列中使用 hafnium-zirconium oxide (HZO) 铁电道结 (FTJ).
- 在多开关CECAM中编码多位数据并执行完美匹配搜索.
主要成果:
- 与HZO FTJ一起展示了CECAM,实现了低电流运行和待机功率降低.
- 在各种 CECAM 尺寸中,通过低匹配电流 (sub-nA) 验证了完美匹配的搜索.
- 实现的内容密度为0.667位/交换机 (N=3) 和0.75位/交换机 (N=4),比传统TCAM增加33%和50%.
结论:
- 对于内存设备来说,CECAM可以大幅增加内容密度.
- 使用HZO FTJ可实现低功耗,高密度的非挥发性内存解决方案.
- 这项技术为未来的高性能计算和数据存储系统提供了有希望的进步.
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