1. 江南大学 物联网学院工程学院,江苏,无锡,214062
2. 中国电子科技集团公司 第58研究所,江苏,无锡,214035
纸质出版:2016
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孙敬, 陈振娇, 陶建中, 薛海卫, 徐新宇. 基于TDICE单元的SRAM抗SEU加固设计[J]. 微电子学与计算机, 2016, 33(7): 39-43.
SUN Jing, CHEN Zhen-jiao, TAO Jian-zhong, et al. Hardened SRAM Design Based on TDICE Cell[J]. 2016, 33(7): 39-43.
双立互锁存储单元(DICE)
在保持状态下是一种可靠有效的单粒子翻转(SEU)加固方法
但是
基于DICE单元的SRAM在读操作下会发生抗SEU失效.相比抗单个敏感节点翻转的效果
DICE抗多个敏感节点翻转的能力较弱.为此
在DICE结构的基础上采用读写分离机制
以解决DICE单元在读写过程中的节点翻转问题.同时
根据电阻加固原理
在DICE存储单元的节点之间增加NMOS管
即TDICE (Transistor DICE)结构
其利用晶体管隔离反馈回路中的节点间的连接
提高了SRAM的抗多节点翻转能力.Spectre仿真结果表明: 基于TDICE单元的SRAM具有较强的抗单粒子翻转能力.
Dual Interlocked Storage Cell (DICE) is a reliable and effective method for Single Event Upset (SEU) reinforcement in maintaining state. However
SEU still occur in DICE cell-based SRAM
due to the weakness 0f DICE cell during reading and writing. Compared with the single node
the effect of DICE resistance multiple-node upset is weak. A separated-read-write structure is proposed to handle the DICE cells upset during reading and writing. And according to the resistance reinforcement principle
Transistor DICE (TDICE) is used that adding NMOS between the events of DICE. TDICE increases the effect of DICE resistance multiple-node upset through the connection between events in a transistor isolation feedback loop. The simulation results show that
TDICE shows a nearly complete tolerance SET with multiple-node upset. Spectre simulation results show that the SRAM based on the TDICE unit has a strong ability to resist a single event upset.
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胡明浩, 李磊, 饶全林. 基于RHBD技术CMOS锁存器加固电路的研究[J]. 微电子学与计算机, 2010, 27(7): 206-209. DOI: 206
刘琳, 赵元富, 岳素格. SEU加固存储单元多节点翻转的准三维数值模拟[J]. 微电子学与计算机, 2010, 27(5): 99-102. DOI: 99
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