中国半导体行业协会封装分会会刊

中国电子学会电子制造与封装技术分会会刊

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电子与封装 ›› 2016, Vol. 16 ›› Issue (8): 19 -23. doi: 10.16257/j.cnki.1681-1070.2016.0092

• 电路设计 • 上一篇    下一篇

改进DICE结构的D触发器抗SEU设计

孙 敬1,2,陈振娇2,陶建中1,2,张宇涵2   

  1. 1.江南大学,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
  • 收稿日期:2016-04-12 出版日期:2016-08-20 发布日期:2016-08-20
  • 作者简介:孙 敬(1990—),女,安徽宿州人,硕士研究生,研究方向为抗辐照加固SRAM设计。

Design of Radiation Hardened D Flip-Flop Based on DICE

SUN Jing1,2,CHEN Zhenjiao2,TAO Jianzhong12,ZHANG Yuhan2   

  1. 1.Jiangnan University,Wuxi 214062,China;2.China Electronics Technology Group Corporation No.58 Research Institute,Wuxi 214035,China
  • Received:2016-04-12 Online:2016-08-20 Published:2016-08-20

摘要: 基于DICE结构主-从型D触发器的抗辐照加固方法的研究,在原有双立互锁存储单元(DICE)结构D触发器的基础上改进电路结构,其主锁存器采用抗静态、动态单粒子翻转(SEU)设计,从锁存器保留原有的DICE结构。主锁存器根据电阻加固与RC滤波的原理,将晶体管作电阻使用,使得电路中存在RC滤波,通过设置晶体管合理的宽长比,使其与晶体管间隔的节点的电平在SEU期间不变化,保持原电平状态,从而使电路具有抗动态SEU的能力。Spectre仿真结果表明,改进的D触发器既具有抗动态SEU能力,又保留了DICE抗静态SEU较好的优点,其抗单粒子翻转效果较好。

关键词: 单粒子翻转, DICE, D触发器, 静态SEU, 动态SEU

Abstract: In the paper,the research of master-slave type D flip-flop radiation hardening method facilitates the improvement of circuit structure of the DICE-based type D flip-flop.The master latch adopts the design of anti-static and anti-dynamic SEU while the slave latch retains the original DICE structure.The master latch generates RC filter using transistors as resistance and enables anti-dynamic capability by setting reasonable length/width ratio.The Spectre simulation results show that the improved D flip-flop is equipped with strong anti-dynamic SEU capability and retains good anti-static SEU capability.

Key words: single event upset(SEU), DICE, D flip-flop, static SEU, dynamic SEU

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