垂直集成的CMOS三元逻辑设备具有低静电消耗和高封装密度
Joon-Kyu Han1, Jung-Woo Lee1,2, Young Bin Kim3
1School of Electrical Engineering, Korea Advanced Institute of Science and Technology (KAIST), 291 Daehak-ro, Yuseong-gu, Daejeon 34141, Republic of Korea.
ACS applied materials & interfaces
|October 25, 2023
概括
一个新的三元逻辑设备通过使用三个稳定状态来提高能源效率,减少晶体管和功耗. 与传统系统相比,这种垂直集成的设计提供了较小的足迹.
科学领域:
- 半导体设备物理学 半导体设备物理
- 多价值逻辑系统是多价值逻辑系统.
- 节能计算架构的节能计算架构.
背景情况:
- 二进制逻辑系统在能源效率和晶体管数量方面面临限制.
- 多值逻辑为更简单的架构和更低的功耗提供了途径.
- 三元逻辑需要能够利用三个稳定的状态的设备.
研究的目的:
- 为了展示一个新的垂直集成互补金属氧化物半导体三元逻辑装置.
- 在三元逻辑系统中实现能源效率和减少足迹.
- 探索在基于晶体管的门开关 (TTS) 上集成薄膜晶体管 (TFT) 的潜力.
主要方法:
- 在TTS上对TFT进行单体集成,以创建混合设备.
- 利用TFT和TTS的不同的开启和关闭状态来实现三个逻辑状态 (0,1,2).
- 电气表征用于验证设备的功能和性能指标.
主要成果:
- 一个四电极三元逻辑装置 (S,D,G_TFT,G_TTS) 的演示,通过电气地将TTS的排水与TFT的源连接起来.
- 实现对应于三元逻辑值0,1,2的低,中,高电流状态.
- 在"1"状态下显著减少静电消耗,这是由于TTS的低状态外泄漏电流.
- 与横向部署的结构相比,设备足迹大约减少了两倍.
结论:
- 展示的垂直集成三元逻辑设备提供了更高的能源效率和更小的足迹.
- 混合TFT-over-TTS架构为更简单,更节能的多值逻辑系统提供了一个有希望的途径.
- 这种方法有可能推动下一代计算架构的发展.
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