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COMBINATORIAL CODES FOR ERROR DETECTION
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作者 夏树涛 符方伟 《Acta Mathematicae Applicatae Sinica》 SCIE CSCD 1999年第4期444-446,共3页
关键词 COMBINATORIAL codeS FOR error detection
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Verification of SEU resistance in 65 nm high-performance SRAM with dual DICE interleaving and EDAC mitigation strategies 被引量:2
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作者 Ze He Shi-Wei Zhao +5 位作者 Tian-Qi Liu Chang Cai Xiao-Yu Yan Shuai Gao Yu-Zhu Liu Jie Liu 《Nuclear Science and Techniques》 SCIE EI CAS CSCD 2021年第12期64-76,共13页
A dual double interlocked storage cell(DICE)interleaving layout static random-access memory(SRAM)is designed and manufactured based on 65 nm bulk complementary metal oxide semiconductor technology.The single event ups... A dual double interlocked storage cell(DICE)interleaving layout static random-access memory(SRAM)is designed and manufactured based on 65 nm bulk complementary metal oxide semiconductor technology.The single event upset(SEU)cross sections of this memory are obtained via heavy ion irradiation with a linear energy transfer(LET)value ranging from 1.7 to 83.4 MeV/(mg/cm^(2)).Experimental results show that the upset threshold(LETth)of a 4 KB block is approximately 6 MeV/(mg/cm^(2)),which is much better than that of a standard unhardened SRAM with an identical technology node.A 1 KB block has a higher LETth of 25 MeV/(mg/cm^(2))owing to the use of the error detection and correction(EDAC)code.For a Ta ion irradiation test with the highest LET value(83.4 MeV/(mg/cm^(2))),the benefit of the EDAC code is reduced significantly because the multi-bit upset proportion in the SEU is increased remarkably.Compared with normal incident ions,the memory exhibits a higher SEU sensitivity in the tilt angle irradiation test.Moreover,the SEU cross section indicates a significant dependence on the data pattern.When comprehensively considering HSPICE simulation results and the sensitive area distributions of the DICE cell,it is shown that the data pattern dependence is primarily associated with the arrangement of sensitive transistor pairs in the layout.Finally,some suggestions are provided to further improve the radiation resistance of the memory.By implementing a particular design at the layout level,the SEU tolerance of the memory is improved significantly at a low area cost.Therefore,the designed 65 nm SRAM is suitable for electronic systems operating in serious radiation environments. 展开更多
关键词 Double interlocked storage cell(DICE) error detection and correction(EDAC)code Heavy ion Radiation hardening technology Single event upset(SEU) Static random-access memory(SRAM)
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