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Since metal interconnect overlayers are central components of micro/nano scaled static random access memory (SRAM), the effects of their presence on proton-induced single-event susceptibility are noteworthy. Geant4 is used to calculate the kinds and probabilities of secondary particles existing in bulk silicon, which are produced from nuclear reactions between protons of different energies (30, 100, 200 and 500 MeV) and micro/nano scaled SRAM. The probabilities of secondary particles with Z≥30 in different overlays are compared with one another; the particles are chiefly coming from nuclear reactions between 500 MeV protons and the SRAM topped with interconnect overlayers. In addition, the kinds and ranges of the secondary particles with high LETs (linear energy transfers) are also analyzed. Results show that there is an increase in the production of secondary particles with Z≥30 due to the presence of metal interconnect overlayers and the rise of proton energy. The secondary particles with Z>60 in bulk silicon are generated by proton interactions with tungsten. As another consequence of the interactions, the secondary particles with 30≤Z≤50 are produced, the probability of which is higher as the proton energy increases. The maximum LET for the secondary particles with 30≤Z≤50 is about 37 MeV·cm2/mg and the corresponding range is several microns, which may induce single event latch-up in micro/nano scaled SRAM with well depths on the order of microns. Results obtained support the theoretic analysis of proton-induced single event effects of aerospace devices in space radiation environment.
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Keywords:
- proton /
- nuclear reaction /
- micro/nano scaled static random access memory /
- single-event effects
[1] Zhang K Y, Zhang F Q, Luo Y H, Guo H X 2013 Chin. Phys. B 22 028501
[2] Zhang K Y, Guo H X, Luo Y H, Fan R Y, Chen W, Lin D S, Guo G, Yan Y H 2011 Chin. Phys. B 20 068501
[3] He C H, Geng B, Yang H L, Chen X H, Wang Y P, Li G Z 2003 Acta Phys. Sin 52 2235 (in Chinese) [贺朝会, 耿斌, 杨海亮, 陈晓华, 王燕萍, 李国政 2003 52 2235]
[4] Zhang Q X, Hou M D, Liu J, Wang Z G, Jin Y F, Zhu Z Y, Sun Y M 2004 Acta Phys. Sin 53 566 (in Chinese) [张庆祥, 侯明东, 刘杰, 王志光, 金运范, 朱智勇, 孙友梅 2004 53 566]
[5] James A F, James R S, Marty R S, Jacques B, Philippe P 2008 IEEE Trans. Nucl. Sci. 55 2161
[6] Harry Y L, Michael S L, Harold L H 2006 IEEE Trans. Nucl. Sci. 53 3502
[7] Edward P 2011 Single Event Effects in Aerospace (United States of America: IEEE Press) p42
[8] Wang T Q 2003 Ph. D. Dissertation (Changsha: Graduate School of National University of Defense Technology) (in Chinese) [王同权 2003 博士学位论文 (长沙: 国防科技大学)]
[9] He C H, Chen X H, Li G Z 2002 Chinese Journal of Computational Physics 19 367 (in Chinese) [贺朝会, 陈晓华, 李国政 2002 计算物理 19 367]
[10] He C H, Chen X H, Li G Z, Yang H L 2000 Chinese Space Science and Technology 5 10 (in Chinese) [贺朝会, 陈晓华, 李国政, 杨海亮 2000 中国空间科学技术 5 10]
[11] Zhang W Y 2002 M. D. Dissertation (Changsha: Graduate School of National University of Defense Technology) (in Chinese) [张文勇 2002 硕士学位论文 (长沙: 国防科技大学)]
[12] Neill P M, Badhwar G D, Culpepper W X 1998 IEEE Trans. Nucl. Sci. 45 2467
[13] David M H, Ewart W B 2003 IEEE Trans. Nucl. Sci. 50 2246
[14] Cellere G, Paccagnella A, Visconti A 2008 IEEE Trans. Nucl. Sci. 55 2908
[15] Schwank J R, Shaneyfelt M R, Baggio J 2005 IEEE Trans. Nucl. Sci. 52 2908
[16] Loke L A S 1999 Ph. D. Dissertation (Stanford: Graduate School of Stanford University)
[17] Warren K M 2010 Ph. D. Dissertation (Nashville: Graduate School of Vanderbilt University)
[18] Schwank J R, Shaneyfelt M R, Dodd P E 2013 IEEE Trans. Nucl. Sci. 60 2110
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[1] Zhang K Y, Zhang F Q, Luo Y H, Guo H X 2013 Chin. Phys. B 22 028501
[2] Zhang K Y, Guo H X, Luo Y H, Fan R Y, Chen W, Lin D S, Guo G, Yan Y H 2011 Chin. Phys. B 20 068501
[3] He C H, Geng B, Yang H L, Chen X H, Wang Y P, Li G Z 2003 Acta Phys. Sin 52 2235 (in Chinese) [贺朝会, 耿斌, 杨海亮, 陈晓华, 王燕萍, 李国政 2003 52 2235]
[4] Zhang Q X, Hou M D, Liu J, Wang Z G, Jin Y F, Zhu Z Y, Sun Y M 2004 Acta Phys. Sin 53 566 (in Chinese) [张庆祥, 侯明东, 刘杰, 王志光, 金运范, 朱智勇, 孙友梅 2004 53 566]
[5] James A F, James R S, Marty R S, Jacques B, Philippe P 2008 IEEE Trans. Nucl. Sci. 55 2161
[6] Harry Y L, Michael S L, Harold L H 2006 IEEE Trans. Nucl. Sci. 53 3502
[7] Edward P 2011 Single Event Effects in Aerospace (United States of America: IEEE Press) p42
[8] Wang T Q 2003 Ph. D. Dissertation (Changsha: Graduate School of National University of Defense Technology) (in Chinese) [王同权 2003 博士学位论文 (长沙: 国防科技大学)]
[9] He C H, Chen X H, Li G Z 2002 Chinese Journal of Computational Physics 19 367 (in Chinese) [贺朝会, 陈晓华, 李国政 2002 计算物理 19 367]
[10] He C H, Chen X H, Li G Z, Yang H L 2000 Chinese Space Science and Technology 5 10 (in Chinese) [贺朝会, 陈晓华, 李国政, 杨海亮 2000 中国空间科学技术 5 10]
[11] Zhang W Y 2002 M. D. Dissertation (Changsha: Graduate School of National University of Defense Technology) (in Chinese) [张文勇 2002 硕士学位论文 (长沙: 国防科技大学)]
[12] Neill P M, Badhwar G D, Culpepper W X 1998 IEEE Trans. Nucl. Sci. 45 2467
[13] David M H, Ewart W B 2003 IEEE Trans. Nucl. Sci. 50 2246
[14] Cellere G, Paccagnella A, Visconti A 2008 IEEE Trans. Nucl. Sci. 55 2908
[15] Schwank J R, Shaneyfelt M R, Baggio J 2005 IEEE Trans. Nucl. Sci. 52 2908
[16] Loke L A S 1999 Ph. D. Dissertation (Stanford: Graduate School of Stanford University)
[17] Warren K M 2010 Ph. D. Dissertation (Nashville: Graduate School of Vanderbilt University)
[18] Schwank J R, Shaneyfelt M R, Dodd P E 2013 IEEE Trans. Nucl. Sci. 60 2110
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