质子辐照作用下浮栅单元的数据翻转及错误退火

刘晔; 郭红霞; 琚安安; 张凤祁; 潘霄宇; 张鸿; 顾朝桥; 柳奕天; 冯亚辉

doi:10.7498/aps.71.20212405

摘要

本文利用60 MeV质子束流, 开展了NAND (not and) flash存储器的质子辐照实验, 获取了浮栅单元的单粒子翻转截面, 分析了浮栅单元错误的退火规律, 研究了质子辐照对浮栅单元的数据保存能力的影响. 实验结果表明, 浮栅单元单粒子翻转截面随质子能量的升高而增大, 随质子注量的升高而减小. 浮栅单元错误随着退火时间的推移持续增多, 该效应在低能量质子入射时更为明显. 经质子辐照后, 浮栅单元的数据保存能力有明显的退化. 分析认为高能质子通过与靶原子的核反应, 间接电离导致浮栅单元发生单粒子翻转, 翻转截面与质子注量的相关性是因为浮栅单元单粒子敏感性的差异. 质子引起的非电离损伤会在隧穿氧化层形成部分永久性的缺陷损伤, 产生可以泄漏浮栅电子的多辅助陷阱导电通道, 导致浮栅单元错误增多及数据保存能力退化.

关键词:

Abstract

In this paper, the 60-MeV proton beam is used to carry out the proton irradiation experiment on NAND (not and) flash memory, the single-event-upset cross section data of the floating gate cell are obtained, the annealing rule of the floating gate cell errors is analyzed, and the effect of proton irradiation on the data retention capability of floating gate cells is studied. The obtained results are as follows. The single-event-upset cross section of the floating gate cell increases with the increase of proton energy, and decreases with the increase of proton fluence. The floating gate cell errors continue to increase over time, and this effect is more pronounced when low energy protons are incident. After proton irradiation, the data retention capability of the floating gate cell is significantly degraded. The analysis suggests that the high energy protons are indirectly ionized through the nuclear reaction with the target atom, causing single-event-upset of the floating gate cell. The correlation between the upset cross section and the proton fluence is due to the difference in single-event-effect sensitivity of the floating gate cell. The proton-induced non-ionizing damage can form partially permanent defect damage in the tunnel oxide layer, creating multiple auxiliary trap channels that can leak floating gate electrons, resulting in the increase of floating gate cell errors and the degradation of data retention capability.

Keywords:

作者及机构信息

1.
湘潭大学材料科学与学院, 湘潭　411105

2.
西北核技术研究所, 西安　710024

通信作者: 郭红霞, guohxnint@126.com

Authors and contacts

1.
School of Material Science and Engineering, Xiangtan University, Xiangtan 411105, China

2.
Northwest Institute of Nuclear Technology, Xi’an 710024, China

Corresponding author: Guo Hong-Xia, guohxnint@126.com

文章全文 : translate this paragraph

参考文献

[1]	Gerardin S, Bagatin M, Paccagnella A, Ferlet-Cavrois V, Frost C D 2014 IEEE Trans. Nucl. Sci. 61 1799 Google Scholar
[2]	Peng C, Chen W, Luo Y H, Zhang F Q, Tang X B, Sheng J K, Ding L L, Wang Z B 2019 Jpn. J. Appl. Phys. 58 126002 Google Scholar
[3]	Cao Y, Tian G L, Sandip M, Bi J S, Xi K, Li B 2021 Semicond. Sci. Technol. 36 045013 Google Scholar
[4]	Oldham T R, Friendlich M, Carts M A, Seidleck C M, Label K A 2011 IEEE Trans. Nucl. Sci. 56 2904 Google Scholar
[5]	Schwartz H R, Nichols D K Johnston A H 1997 IEEE Trans. Nucl. Sci. 44 2315 Google Scholar
[6]	曹杨, 习凯, 徐彦楠, 李梅, 李博, 毕津顺, 刘明 2019 物理学报 68 038501 Google Scholar Cao Y, Xi K, Xu Y N, Li M, Li B, Bi J S, Liu M 2019 Acta Phys. Sin. 68 038501 Google Scholar
[7]	Cellere G, Paccagnella A, Visconti A, Bonanomi M 2006 IEEE Trans. Nucl. Sci. 53 3349 Google Scholar
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[9]	Cellere G, Paccagnella A, Visconti A, Bonanomi M, Virtanen A 2008 IEEE Trans. Nucl. Sci. 55 2042 Google Scholar
[10]	Irom F, Nguyen D N, Bagatin M, Cellere G, Gerardin S, Paccagnella A 2010 IEEE Trans. Nucl. Sci. 57 266 Google Scholar
[11]	Guo J L, Du G H, Bi J S, Liu W J, Wu R Q, Chen H, Wei J Z, Li Y N, Sheng L N, Liu X J, Ma S Y 2017 Nucl. Instrum. Meth. B 404 250 Google Scholar
[12]	Gerardin S, Bagatin M, Paccagnella A, Schwank J R, Shaneyfelt M R, Blackmore E W 2012 IEEE Trans. Nucl. Sci. 59 838 Google Scholar
[13]	Bagatin M, Gerardin S, Paccagnella A, Ferlet-Cavrois V, Schwank J R, Shaneyfelt M R, Visconti A 2013 IEEE Trans. Nucl. Sci. 60 4130 Google Scholar
[14]	Chen D, Wilcox E, Ladbury R L, Kim H, Phan A, Seidleck C, Label K A 2017 IEEE Trans. Nucl. Sci. 64 332 Google Scholar
[15]	彭聪 2020 硕士学位论文 (南京: 南京航空航天大学) Peng C 2020 M. S. Thesis (Nanjing: Nanjing University of Aeronautics and Astronautics) (in Chinese)
[16]	Bagatin M, Gerardin S, Paccagnella A 2012 IEEE Trans. Nucl. Sci. 59 2785 Google Scholar
[17]	Bi J S, Xi K, Li B, Wang H, Ji L L, Li J, Liu M 2018 Chinese Phys. B 27 098501 Google Scholar
[18]	殷亚楠 2018 博士学位论文 (北京: 中国科学院大学) Yin Y N 2018 Ph. D. Dissertation (Beijing: University of Chinese Academy of Sciences) (in Chinese)
[19]	Guertin S M, Nguyen D M, Patterson J D 2006 IEEE Trans. Nucl. Sci. 53 3518 Google Scholar
[20]	何安林 2016 博士学位论文 (北京: 中国原子能科学研究院) He A L 2016 Ph. D. Dissertation (Beijing: China institute of atomic energy) (in Chinese)
[21]	Stapor W J, Meyers J P, Langworthy J B, Petersen E L 1990 IEEE Trans. Nucl. Sci. 37 1966 Google Scholar
[22]	赖祖武 1998 抗辐射电子学——辐射效应及加固原理 (北京: 国防工业出版社) 第21页 Lai Z W 1998 Anti-radiation Electronics—Radiation Effects and Hardening Principles (Beijing: National Defense Industry Press) p21 (in Chinese)
[23]	Cellere G, Pellati P, Chimenton A, Wyss J, Modelli A, Larcher L, Paccagnella A 2001 IEEE Trans. Nucl. Sci. 48 2222 Google Scholar
[24]	Cellere G, Paccagnella A, Visconti A, Bonanomi M, Candelori A 2004 IEEE Trans. Nucl. Sci. 51 3304 Google Scholar

施引文献

图 1 25 nm SLC阵列浮栅单元的TEM横截面

Fig. 1. TEM cross-section of 25 nm SLC floating cells array.

下载: 全尺寸图片幻灯片

图 2 不同能量的质子辐照下浮栅单元SEU截面

Fig. 2. Single event upset cross section of floating gate cells irradiated by protons at different energy levels.

下载: 全尺寸图片幻灯片

图 3 不同能量质子与Si的核反应截面^[20]

Fig. 3. Cross section of nuclear reaction between protons at different energy levels and silicon.^[20]

下载: 全尺寸图片幻灯片

图 4 不同注量的质子辐照下浮栅单元SEU截面

Fig. 4. Single event upset cross section of floating gate cells irradiated by protons at different fluence levels.

下载: 全尺寸图片幻灯片

图 5 浮栅单元阈值电压的分布示意图　(a) 辐照前; (b) 辐照后

Fig. 5. Schematic illustrations of floating gate cell distribution vs. threshold voltage: (a) Before the irradiation; (b) after the irradiation.

下载: 全尺寸图片幻灯片

图 6 不同机制影响下的浮栅单元阈值电压变化示意图

Fig. 6. Schematic illustrations of threshold voltage changes of floating gate cells under the influence of different mechanisms.

下载: 全尺寸图片幻灯片

图 7 不同能量质子辐照后45天内浮栅单元错误变化

Fig. 7. Annealing of floating gate errors within 45 days after proton irradiation at different energy levels.

下载: 全尺寸图片幻灯片

图 8 单位深度的非电离能量损失随质子能量的变化

Fig. 8. The non-ionizing energy loss per unit depth varies with the proton energy.

下载: 全尺寸图片幻灯片

图 9 重新写入不同数据后45天内浮栅单元错误变化

Fig. 9. Annealing of floating gate errors within 45 days after rewriting different data.

下载: 全尺寸图片幻灯片

图 10 重新写入不同数据后浮栅单元阈值电压变化示意图

Fig. 10. Schematic illustration of threshold voltage changes of floating gate cells after rewriting different data.

下载: 全尺寸图片幻灯片

表 1 实验所用flash存储器信息

Table 1. Flash memory information used in the experiment.

器件型号标码特征
尺寸/nm 存储
容量/G

MT29F32G08ABAAA(SLC) 1950 1-7 25 32
MT29F32G08CBACA(MLC) 1550 1-2 25 32

下载: 导出CSV

[1]	Gerardin S, Bagatin M, Paccagnella A, Ferlet-Cavrois V, Frost C D 2014 IEEE Trans. Nucl. Sci. 61 1799 Google Scholar
[2]	Peng C, Chen W, Luo Y H, Zhang F Q, Tang X B, Sheng J K, Ding L L, Wang Z B 2019 Jpn. J. Appl. Phys. 58 126002 Google Scholar
[3]	Cao Y, Tian G L, Sandip M, Bi J S, Xi K, Li B 2021 Semicond. Sci. Technol. 36 045013 Google Scholar
[4]	Oldham T R, Friendlich M, Carts M A, Seidleck C M, Label K A 2011 IEEE Trans. Nucl. Sci. 56 2904 Google Scholar
[5]	Schwartz H R, Nichols D K Johnston A H 1997 IEEE Trans. Nucl. Sci. 44 2315 Google Scholar
[6]	曹杨, 习凯, 徐彦楠, 李梅, 李博, 毕津顺, 刘明 2019 物理学报 68 038501 Google Scholar Cao Y, Xi K, Xu Y N, Li M, Li B, Bi J S, Liu M 2019 Acta Phys. Sin. 68 038501 Google Scholar
[7]	Cellere G, Paccagnella A, Visconti A, Bonanomi M 2006 IEEE Trans. Nucl. Sci. 53 3349 Google Scholar
[8]	Gerardin S, Bagatin M, Paccagnella A, Cellere G, Visconti A, Bonanomi M, Hjalmarsson A, Prokofiev A V 2010 IEEE Trans. Nucl. Sci. 57 3199 Google Scholar
[9]	Cellere G, Paccagnella A, Visconti A, Bonanomi M, Virtanen A 2008 IEEE Trans. Nucl. Sci. 55 2042 Google Scholar
[10]	Irom F, Nguyen D N, Bagatin M, Cellere G, Gerardin S, Paccagnella A 2010 IEEE Trans. Nucl. Sci. 57 266 Google Scholar
[11]	Guo J L, Du G H, Bi J S, Liu W J, Wu R Q, Chen H, Wei J Z, Li Y N, Sheng L N, Liu X J, Ma S Y 2017 Nucl. Instrum. Meth. B 404 250 Google Scholar
[12]	Gerardin S, Bagatin M, Paccagnella A, Schwank J R, Shaneyfelt M R, Blackmore E W 2012 IEEE Trans. Nucl. Sci. 59 838 Google Scholar
[13]	Bagatin M, Gerardin S, Paccagnella A, Ferlet-Cavrois V, Schwank J R, Shaneyfelt M R, Visconti A 2013 IEEE Trans. Nucl. Sci. 60 4130 Google Scholar
[14]	Chen D, Wilcox E, Ladbury R L, Kim H, Phan A, Seidleck C, Label K A 2017 IEEE Trans. Nucl. Sci. 64 332 Google Scholar
[15]	彭聪 2020 硕士学位论文 (南京: 南京航空航天大学) Peng C 2020 M. S. Thesis (Nanjing: Nanjing University of Aeronautics and Astronautics) (in Chinese)
[16]	Bagatin M, Gerardin S, Paccagnella A 2012 IEEE Trans. Nucl. Sci. 59 2785 Google Scholar
[17]	Bi J S, Xi K, Li B, Wang H, Ji L L, Li J, Liu M 2018 Chinese Phys. B 27 098501 Google Scholar
[18]	殷亚楠 2018 博士学位论文 (北京: 中国科学院大学) Yin Y N 2018 Ph. D. Dissertation (Beijing: University of Chinese Academy of Sciences) (in Chinese)
[19]	Guertin S M, Nguyen D M, Patterson J D 2006 IEEE Trans. Nucl. Sci. 53 3518 Google Scholar
[20]	何安林 2016 博士学位论文 (北京: 中国原子能科学研究院) He A L 2016 Ph. D. Dissertation (Beijing: China institute of atomic energy) (in Chinese)
[21]	Stapor W J, Meyers J P, Langworthy J B, Petersen E L 1990 IEEE Trans. Nucl. Sci. 37 1966 Google Scholar
[22]	赖祖武 1998 抗辐射电子学——辐射效应及加固原理 (北京: 国防工业出版社) 第21页 Lai Z W 1998 Anti-radiation Electronics—Radiation Effects and Hardening Principles (Beijing: National Defense Industry Press) p21 (in Chinese)
[23]	Cellere G, Pellati P, Chimenton A, Wyss J, Modelli A, Larcher L, Paccagnella A 2001 IEEE Trans. Nucl. Sci. 48 2222 Google Scholar
[24]	Cellere G, Paccagnella A, Visconti A, Bonanomi M, Candelori A 2004 IEEE Trans. Nucl. Sci. 51 3304 Google Scholar

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质子辐照作用下浮栅单元的数据翻转及错误退火