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14 nm FinFET和65 nm平面工艺静态随机存取存储器中子单粒子翻转对比

张战刚 雷志锋 童腾 李晓辉 王松林 梁天骄 习凯 彭超 何玉娟 黄云 恩云飞

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14 nm FinFET和65 nm平面工艺静态随机存取存储器中子单粒子翻转对比

张战刚, 雷志锋, 童腾, 李晓辉, 王松林, 梁天骄, 习凯, 彭超, 何玉娟, 黄云, 恩云飞

Comparison of neutron induced single event upsets in 14 nm FinFET and 65 nm planar static random access memory devices

Zhang Zhan-Gang, Lei Zhi-Feng, Tong Teng, Li Xiao-Hui, Wang Song-Lin, Liang Tian-Jiao, Xi Kai, Peng Chao, He Yu-Juan, Huang Yun, En Yun-Fei
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  • 使用中国散裂中子源提供的宽能谱中子束流, 开展14 nm FinFET工艺和65 nm平面工艺静态随机存取存储器中子单粒子翻转对比研究, 发现相比于65 nm器件, 14 nm FinFET器件的大气中子单粒子翻转截面下降至约1/40, 而多位翻转比例从2.2%增大至7.6%, 源于14 nm FinFET器件灵敏区尺寸(80 nm × 30 nm × 45 nm)、间距和临界电荷(0.05 fC)的减小. 不同于65 nm器件对热中子免疫的现象, 14 nm FinFET器件中M0附近10B元素的使用导致其表现出一定的热中子敏感性. 进一步的中子输运仿真结果表明, 高能中子在器件灵敏区中产生的大量的射程长、LET值大的高Z二次粒子是多位翻转的产生诱因, 而单粒子翻转主要来自于p, He, Si等轻离子的贡献.
    Based on the wide-spectrum neutron beam (covering thermal neutrons and E > 10 MeV neutrons, with maximum energy of 1.6 GeV) provided by the China Spallation Neutron Source (CSNS), this paper focuses on the single event effect study of 14 nm FinFET large-capacity SRAM and 65 nm planar process SRAM device, using combined techniques of irradiation experiment, reverse analysis, and Monte-Carlo neutron transport simulation. The aim is to reveal the effect of integrated circuit process changing on the sensitivity of neutron induced single-bit and multiple-bit upsets (MBU), and to analyze the inner mechanisms, including the distribution of secondary particles in the sensitive volume, the characteristics of deposited charges, etc. The results show that compared with the 65 nm device, single event upset (SEU) cross section of the 14 nm FinFET device, induced by E > 10 MeV neutrons, is reduced by about 40 times, while the MBU ratio increases from 2.2% to 7.6%, which is due to the reduction of sensitive volume size of the 14 nm FinFET device (80 nm × 30 nm × 45 nm), pitch, and critical charge (0.05 fC). The main forms of MBU are double-bit upset, triple-bit upset and quadruple-bit upset. Unlike the phenomenon that the 65 nm device is immune to thermal neutrons, the use of the 10B element near M0 in the 14 nm FinFET device causes it to present the thermal neutron sensitivity to a certain extent. The SEU cross section induced by thermal neutrons is about 4.8 times smaller than that induced by E > 10 MeV neutrons. Based on the device cross-section and memory area images obtained from the reverse analysis, a device model is established and neutron transport simulation based on Geant4 toolkit is carried out. The E > 10 MeV neutrons result in abundant secondary particle distribution in the sensitive volume of the device, covering n, p into even W. The neutron energy and presence or absence of the W plug near the sensitive volume have an importantinfluence on the type and probability of secondary particles in the sensitive volume. The analysis and calculations show that a large number of high-Z secondary particles with long range and large LET values generated by high-energy neutrons in the sensitive volume of the device are the inducement of MBU, and SEUs mainly result from the contribution of light ions such as p, He, and Si.
      通信作者: 雷志锋, leizf@ceprei.com
    • 基金项目: 国家级-国家自然科学基金项目(61704031)
      Corresponding author: Lei Zhi-Feng, leizf@ceprei.com
    [1]

    Lu D D, Dunga M V, Lin C S, Niknejad A M, Hu C 2007 IEEE International Electron Devices Meeting Washington, DC, USA, December 10–12, 2007 p565

    [2]

    Park T, Choi S, Lee D H, Yoo J R, Lee B C, Kim J Y, Lee C G, Chi K K, Hong S H, Hynn S J, Shin Y G, Han J N, Park I S, Chung U I, Moon J T, Yoon E, Lee J H 2003 Symposium on VLSI Technology Kyoto, Japan, June 10–12, 2003 p135

    [3]

    Manoj C R, Meenakshi N, Dhanya V, Rao V R 2007 International Workshop on Physics of Semiconductor Devices Mumbai, India, December 16–20, 2007 p134

    [4]

    Ma C, Li B, Zhang L, He J, Zhang X, Lin X, Chan M 2009 10th International Symposium on Quality Electronic Design San Jose, CA, USA, March 16–18, 2009 p7

    [5]

    Bhuva B 2018 IEEE International Electron Devices Meeting (IEDM) San Francisco, CA, USA, December 1–5, 2018 p34.4.1

    [6]

    Lei Z F, Zhang Z G, En Y F, Huang Y 2018 Chin. Phys. B 27 066105Google Scholar

    [7]

    JESD89 A Measurement and Reporting of Alpha Particle and Terrestrial Cosmic Ray-Induced Soft Errors in Semiconductor Devices JEDEC standard, October 2006

    [8]

    May T C, Woods M H 1979 IEEE Trans. Electron Dev. ED-26 2

    [9]

    Autran J L, Munteanu D, Sauze S, Gasiot G, Roche P 2014 IEEE Radiation Effects Data Workshop (REDW) Paris, France, July 14–18, 2014 p1

    [10]

    Auden E C, Quinn H M, Wender S A, O’Donnell J M, Lisowski P W, George J S, Xu N, Black D A, Black J D 2019 IEEE Trans. Nucl. Sci. Early Access 1

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    Weulersse C, Houssany S, Guibbaud N, Segura-Ruiz J, Beaucour J, Miller F, Mazurek M 2018 IEEE Trans. Nucl. Sci. 65 1851Google Scholar

    [12]

    Zhang H, Jiang H, Brockman J D, Assis T R, Fan X, Bhuva B L, Narasimham B, Wen S J, Wong R 2017 IEEE International Reliability Physics Symposium (IRPS) Monterey, CA, USA, April 2–6, 2017 p3 D-3.1

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    Seifert N, Jahinuzzaman S, Velamala J, Ascazubi R, Patel N, Gill B, Basile J, Hicks J 2015 IEEE Trans. Nucl. Sci. 62 2570Google Scholar

    [14]

    Fang Y, Oates A S 2011 IEEE Trans. Dev. Mater. Reliab. 11 551Google Scholar

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    王勋, 张凤祁, 陈伟, 郭晓强, 丁李利, 罗尹虹 2019 物理学报 68 052901Google Scholar

    Wang X, Zhang F Q, Chen W, Guo X Q, Ding L L, Luo Y H 2019 Acta Phys. Sin. 68 052901Google Scholar

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    Ziegler J F, Biersack J P, Littmark U 1985 The Stopping and Range of Ions in Solids (New York: Pergamon Press)

    [17]

    SRIM & TRIM, Ziegler J F http://www.srim.org/ [2019-7-11]

    [18]

    Zhang Z G, Lei Z F, En Y F, Liu J 2016 Radiation Effects on Components & Systems Conference (RADECS) Bremen, Germany, September 19–23, 2016 Paper H14

    [19]

    Sierawski B D, Mendenhall M H, Reed R A, Clemens M A, Weller R A, Schrimpf R D, Blackmore E W, Trinczek M, Hitti B, Pellish J A, Baumann R C, Wen S J, Wong R, Tam N 2010 IEEE Tran. Nucl. Sci. 57 3273

    [20]

    Agostinelli S, Allison J, Amako K, et al. 2003 Nucl. Instrum. Meth. Phys. Res. A 506 250Google Scholar

    [21]

    Zhang Z G, Liu J, Sun Y M, Hou M D, Tong T, Gu S, Liu T Q, Geng C, Xi K, Yao H J, Luo J, Duan J L, Mo D, Su H, Lei Z F, En Y F, Huang Y 2014 10th International Conference on Reliability, Maintainability and Safety (ICRMS) Guangzhou, China, August 6–8, 2014 p114

  • 图 1  实验现场图(中子束流孔道位于测试板背后, 中子束流对准被测器件)

    Fig. 1.  Experimental setup (neutron beam channel is loca-ted behind the test board, and aligned with the device under test).

    图 2  实验终端的中子能谱

    Fig. 2.  Neutron energy spectrum of the experimental terminal.

    图 3  65 nm平面工艺和14 nm FinFET工艺SRAM的中子(E > 10 MeV)SEU截面对比

    Fig. 3.  Comparison of neutron (E > 10 MeV) SEU cross section of 65 nm planar and 14 nm FinFET SRAM devices.

    图 4  65 nm平面工艺和14 nm FinFET工艺SRAM的热中子SEU截面对比

    Fig. 4.  Comparison of thermal neutron SEU cross section of 65 nm planar and 14 nm FinFET SRAM devices.

    图 5  (a) Li离子和(b) He离子在硅材料中的LET值与能量的关系

    Fig. 5.  Relationship between LET value and energy of (a) Li ion and (b) He ion in silicon material.

    图 6  14 nm FinFET SRAM的重离子实验结果

    Fig. 6.  Heavy ion experiment results of 14 nm FinFET SRAM.

    图 7  65 nm平面工艺和14 nm FinFET工艺SRAM的中子MBU比例对比(使用图2的全能谱)

    Fig. 7.  Comparison of neutron MBU ratio of 65 nm planar and 14 nm FinFET SRAM devices (using the full spectrum in Fig. 2).

    图 8  14 nm FinFET SRAM的反向分析 (a)横切面; (b)存储区图像

    Fig. 8.  Reverse analysis of 14 nm FinFET SRAM: (a) Cross section; (b) memory area image.

    图 9  65 nm SRAM的反向分析 (a) 横切面; (b) 存储区图像

    Fig. 9.  Reverse analysis of 65 nm SRAM: (a) Cross section; (b) memory area image.

    图 10  14 MeV和1600 MeV中子在器件灵敏区中产生的二次粒子分布(器件模型中的W材料被二氧化硅替代)

    Fig. 10.  14 MeV and 1600 MeV neutron induced secondary particle distribution in the device SV (W material in the device model is replaced by silica).

    图 11  14 MeV和1600 MeV中子在器件灵敏区中产生的二次粒子分布(真实器件模型)

    Fig. 11.  14 MeV and 1600 MeV neutron induced secondary particle distribution in the device SV (real device model).

    图 12  14 MeV和1600 MeV中子在器件灵敏区中产生的二次粒子的LET值与射程

    Fig. 12.  The LET value and range of secondary particles generated by 14 MeV and 1600 MeV neutrons in the device SV.

    图 13  14 MeV和1600 MeV中子在器件灵敏区中的沉积电荷

    Fig. 13.  The deposition charge of 14 MeV and 1600 MeV neutrons in the device SV.

    表 1  被测器件参数

    Table 1.  Parameters of devices under test.

    编号SRAM工艺型号容量供电电压(core)/V封装形式
    1#65 nm平面CY7 C1663 KV188 Mb × 181.8BGA, 非倒装
    2#14 nm FinFET8 Mb × 160.8BGA, 倒装
    下载: 导出CSV

    表 2  14 nm FinFET SRAM和65 nm SRAM的存储单元尺寸和灵敏区参数

    Table 2.  Memory cell size and SV parameters for the 14 nm FinFET SRAM and 65 nm SRAM devices.

    器件存储单元尺寸/
    μm × μm
    灵敏区尺寸/
    μm × μm
    灵敏区厚度/nm重离子LET阈值/
    MeV·cm2·mg–1
    临界电荷/fC
    14 nm FinFET SRAM0.37 × 0.180.08 × 0.03450.10.05
    65 nm SRAM1.0 × 0.50.20 × 0.194500.22 [18]1[19]
    下载: 导出CSV
  • [1]

    Lu D D, Dunga M V, Lin C S, Niknejad A M, Hu C 2007 IEEE International Electron Devices Meeting Washington, DC, USA, December 10–12, 2007 p565

    [2]

    Park T, Choi S, Lee D H, Yoo J R, Lee B C, Kim J Y, Lee C G, Chi K K, Hong S H, Hynn S J, Shin Y G, Han J N, Park I S, Chung U I, Moon J T, Yoon E, Lee J H 2003 Symposium on VLSI Technology Kyoto, Japan, June 10–12, 2003 p135

    [3]

    Manoj C R, Meenakshi N, Dhanya V, Rao V R 2007 International Workshop on Physics of Semiconductor Devices Mumbai, India, December 16–20, 2007 p134

    [4]

    Ma C, Li B, Zhang L, He J, Zhang X, Lin X, Chan M 2009 10th International Symposium on Quality Electronic Design San Jose, CA, USA, March 16–18, 2009 p7

    [5]

    Bhuva B 2018 IEEE International Electron Devices Meeting (IEDM) San Francisco, CA, USA, December 1–5, 2018 p34.4.1

    [6]

    Lei Z F, Zhang Z G, En Y F, Huang Y 2018 Chin. Phys. B 27 066105Google Scholar

    [7]

    JESD89 A Measurement and Reporting of Alpha Particle and Terrestrial Cosmic Ray-Induced Soft Errors in Semiconductor Devices JEDEC standard, October 2006

    [8]

    May T C, Woods M H 1979 IEEE Trans. Electron Dev. ED-26 2

    [9]

    Autran J L, Munteanu D, Sauze S, Gasiot G, Roche P 2014 IEEE Radiation Effects Data Workshop (REDW) Paris, France, July 14–18, 2014 p1

    [10]

    Auden E C, Quinn H M, Wender S A, O’Donnell J M, Lisowski P W, George J S, Xu N, Black D A, Black J D 2019 IEEE Trans. Nucl. Sci. Early Access 1

    [11]

    Weulersse C, Houssany S, Guibbaud N, Segura-Ruiz J, Beaucour J, Miller F, Mazurek M 2018 IEEE Trans. Nucl. Sci. 65 1851Google Scholar

    [12]

    Zhang H, Jiang H, Brockman J D, Assis T R, Fan X, Bhuva B L, Narasimham B, Wen S J, Wong R 2017 IEEE International Reliability Physics Symposium (IRPS) Monterey, CA, USA, April 2–6, 2017 p3 D-3.1

    [13]

    Seifert N, Jahinuzzaman S, Velamala J, Ascazubi R, Patel N, Gill B, Basile J, Hicks J 2015 IEEE Trans. Nucl. Sci. 62 2570Google Scholar

    [14]

    Fang Y, Oates A S 2011 IEEE Trans. Dev. Mater. Reliab. 11 551Google Scholar

    [15]

    王勋, 张凤祁, 陈伟, 郭晓强, 丁李利, 罗尹虹 2019 物理学报 68 052901Google Scholar

    Wang X, Zhang F Q, Chen W, Guo X Q, Ding L L, Luo Y H 2019 Acta Phys. Sin. 68 052901Google Scholar

    [16]

    Ziegler J F, Biersack J P, Littmark U 1985 The Stopping and Range of Ions in Solids (New York: Pergamon Press)

    [17]

    SRIM & TRIM, Ziegler J F http://www.srim.org/ [2019-7-11]

    [18]

    Zhang Z G, Lei Z F, En Y F, Liu J 2016 Radiation Effects on Components & Systems Conference (RADECS) Bremen, Germany, September 19–23, 2016 Paper H14

    [19]

    Sierawski B D, Mendenhall M H, Reed R A, Clemens M A, Weller R A, Schrimpf R D, Blackmore E W, Trinczek M, Hitti B, Pellish J A, Baumann R C, Wen S J, Wong R, Tam N 2010 IEEE Tran. Nucl. Sci. 57 3273

    [20]

    Agostinelli S, Allison J, Amako K, et al. 2003 Nucl. Instrum. Meth. Phys. Res. A 506 250Google Scholar

    [21]

    Zhang Z G, Liu J, Sun Y M, Hou M D, Tong T, Gu S, Liu T Q, Geng C, Xi K, Yao H J, Luo J, Duan J L, Mo D, Su H, Lei Z F, En Y F, Huang Y 2014 10th International Conference on Reliability, Maintainability and Safety (ICRMS) Guangzhou, China, August 6–8, 2014 p114

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出版历程
  • 收稿日期:  2019-08-08
  • 修回日期:  2019-12-20
  • 刊出日期:  2020-03-05

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