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Monolithically Stackable 1T1C 3-D DRAM: A Technical Survey

delete2026-02-19
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PRE
AI
K
K. J. Lee
S
Sungwon Cho
P
Po-Kai Hsu
J
Janak Sharda
S
Suman Datta
Shimeng Yu 封面图
Shimeng Yu (Shimeng Yu)
DOI:10.1109/TED.2026.3659106delete
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摘要

摘要

En 中文
本文为理解单晶体管-单电容器(1T1C)3-D动态随机存取存储器(DRAM)的先进挑战与前景提供了框架。文章首先概述了2-D DRAM缩放的极限及对单片垂直集成的需求,随后考察了单元架构,比较了垂直位线(VBL)和水平位线(HBL)布局,并通过关态漏电、浮体诱导的寄生双极结型晶体管(BJT)激活以及字线(WL)电容耦合分析电荷损失机制。随后,本文回顾了访问晶体管设计及从硅到非晶半导体的通道材料选择,以及兼容的电容器几何结构和工艺集成问题。接着,本文扩展至阵列和外围架构选择,分析了WL/BL布线、选择器(SL)辅助感测,并比较了CMOS-near-array(CNA)、CMOS-under-array(CUA)和CMOS-bonded-array(CBA)等集成方案。该分析阐明了布线寄生参数、键合节距和热预算如何共同定义3-D DRAM的可扩展性极限。通过将器件物理、工艺集成和架构层次整合为一个统一框架,本研究为未来十年实用的单片3-D DRAM技术定义了技术路径。
Keyword:
3-D dynamic random access memory (DRAM)
CMOS-bonded-array (CBA)
high-aspect-ratio (HAR) process integration

期刊

IEEE Transactions on Electron Devices 封面图
IEEE Transactions on Electron Devices
IF:
3.2
论文数:
792
被引数:
3.7W

机构

G
georgia institute of technology
学者数:
2.2K
论文数: 1.1K
被引数: 0
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