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Dislocation dynamics in sub-micron confinement: recent progress in Cu thin film plasticity

  • Gerhard Dehm EMAIL logo , T. John Balk , Burghard von Blanckenhagen , Peter Gumbsch and Eduard Arzt
Published/Copyright: January 31, 2022
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Abstract

Small is strong – the yield stresses of thin metall23ic films with sub-micron thickness greatly exceed bulk values. While it is clear that this effect must be due to confinement effects on dislocation processes, the details of such mechanical finite size phenomena are complicated. Our recent In situ transmission electron microscopy studies combined with discrete dislocation dynamics simulations have shed some light on this problem. One conclusion is that the behavior of dislocations near interfaces affects the plasticity in small volumes in new ways which have not been foreseen by theoretical considerations so far. Another important aspect is the discovery of unexpected slip systems, which can be seen as indirect evidence for a constrained diffusional creep mechanism in polycrystalline films. Discrete dislocation simulations have allowed the operation of dislocation sources to be simulated under various boundary conditions. Based on these studies, we propose a new view of dislocation plasticity in thin films which, while being far from complete, seems to be more consistent with experimental observations and measurements.


Dr. Gerhard Dehm Max-Planck-Institut für Metallforschung Heisenbergstr. 3, D-70569 Stuttgart, Germany Tel.:+49 711 689 4318 Fax: +49 711 689 4312

  1. The authors would like to thank Prof. H. Gao for fruitful discussions. Dr. T. Wagner and his team from the “ZWE Dünnschichtlabor” are acknowledged for assistance with thin film deposition. G. D. and T. J. B. express thanks to B. Heiland, N. Tomic, and D. Cantarutti for preparation of certain TEM specimens, to Dr. F. Phillipp and his team from the “ZWE Hochspannungsmikroskopie”, and to Prof. M. Rühle for use of the TEM facilities. E. A. gratefully acknowledges financial support from the Deutsche Forschungsgemeinschaft (Leibniz Award). B. v. B. and P. G. gratefully acknowledge financial support by the Deutsche Forschungsgemeinschaft (Gu 367/18).

References

1 Arzt, E.: Acta Mater. 46 (1998) 5611.10.1016/S1359-6454(98)00231-6Search in Google Scholar

2 Kraft, O.; Wellner, P.; Schwaiger, R.; Hommel, M.; Arzt, E.: Z. Metallkd. 93 (2002) 352.10.3139/146.020352Search in Google Scholar

3 Nix, W.D.: Metall. Trans. A 20 (1989) 2217.10.1007/BF02666659Search in Google Scholar

4 Arzt, E.; Dehm, G.; Gumbsch, P.; Kraft, O.; Weiss, D.: Prog. Mater. Sci. 46 (2001) 283.10.1016/S0079-6425(00)00015-3Search in Google Scholar

5 Maex, K.; Joo, Y.-C.; Oehrlein, G.S.; Ogawa, S.; Wetzel, J.T. (eds.): Materials, Technology, and Reliability for Advanced Interconnects and Low-k Dielectrics, Mater. Res. Soc. Symp. Proc., Vol. 612, Warrendale, PA (2000).Search in Google Scholar

6 Chaudari, P.: Phil. Mag. A 39 (1979) 507.10.1080/01418617908239287Search in Google Scholar

7 Kuan, T.S.; Murakami, M.: Metall. Trans. A 13 (1982) 383.10.1007/BF02643347Search in Google Scholar

8 Thompson, C.V.: J. Mater. Res. 8 (1993) 237.10.1557/JMR.1993.0237Search in Google Scholar

9 Freund, L.B.: J. Appl. Mech. 43 (1987) 553.10.1115/1.3173068Search in Google Scholar

10 Venkatraman, R.; Bravman, J.C.: J. Mater. Res. 7 (1992) 2040.10.1557/JMR.1992.2040Search in Google Scholar

11 Dehm, G.; Inkson, B.J.; Wagner, T.; Balk, T.J.; Arzt, E.: J. Mater. Sci. Technol. 18 (2002), in press.Search in Google Scholar

12 Vinci, R.P.; Zielinski, E.M.; Bravman, J.C.: Thin Solid Films 262 (1995) 142.10.1016/0040-6090(95)05834-6Search in Google Scholar

13 Keller, R.-M.; Baker, S.P.; Arzt, E.: J. Mater. Res. 13 (1998) 1307.10.1557/JMR.1998.0186Search in Google Scholar

14 Weiss, D.: Ph.D. Thesis, Univ. Stuttgart (2000).Search in Google Scholar

15 Hommel, M.; Kraft, O.: Acta Mater. 49 (2001) 3935.10.1016/S1359-6454(01)00293-2Search in Google Scholar

16 Nix, W.D.: Scripta Mater. 39 (1998) 545.10.1016/S1359-6462(98)00195-XSearch in Google Scholar

17 Schwarz, K.W.; Tersoff, J.: Appl. Phys. Lett. 69 (1996) 1220.10.1063/1.117417Search in Google Scholar

18 Gomez-Garcia, D.; Devincre, B.; Kubin, L.: J. Comput. Aided Mater. Design 6 (1999) 157.10.1023/A:1008730711221Search in Google Scholar

19 Pant, P.; Schwarz, K.W.; Baker, S.P.: Mater. Res. Soc. Symp. Proc. 673 (2001) P2.2.1.10.1557/PROC-673-P2.2Search in Google Scholar

20 von Blanckenhagen, B.: Ph.D. Thesis, Univ. Stuttgart (2002).Search in Google Scholar

21 Gao, H.; Zhang, L.; Nix, W.D.; Thompson, C.V.; Arzt, E.: Acta Mater. 47 (1999) 2865.10.1016/S1359-6454(99)00178-0Search in Google Scholar

22 Flinn, P.A.; Gardner, D.S.; Nix, W.D.: IEEE Trans. Electron. Devices 34 (1987) 689.10.1109/T-ED.1987.22981Search in Google Scholar

23 Kobrinsky, M.J.; Thompson, C.V.: Acta Mater. 48 (2000) 625.10.1016/S1359-6454(99)00403-6Search in Google Scholar

24 Kobrinsky, M.J.; Dehm, G.; Thompson, C.V.; Arzt, E.: Acta Mater. 49 (2001) 3597.10.1016/S1359-6454(01)00225-7Search in Google Scholar

25 Weiss, D.; Gao, H.; Arzt, E.: Acta Mater. 49 (2001) 2395.10.1016/S1359-6454(01)00168-9Search in Google Scholar

26 Dehm, G.; Arzt, E.: Appl. Phys. Lett. 77 (2000) 1126.10.1063/1.1289488Search in Google Scholar

27 Dehm, G.; Inkson, B.J.; Balk, T.J.; Wagner, T.; Arzt, E.: Mater. Res. Soc. Symp. Proc. 673 (2001) P2.6.1.10.1557/PROC-673-P2.6Search in Google Scholar

28 Balk, T.J.; Dehm, G.; Arzt, E.: Mater. Res. Soc. Symp. Proc. 673 (2001) P2.7.1.10.1557/PROC-673-P2.7Search in Google Scholar

29 Balk, T.J.; Dehm, G.; Arzt, E.: Mater. Res. Soc. Symp. Proc. 695 (2002) L2.7.1.10.1557/PROC-695-L2.7.1Search in Google Scholar

30 von Blanckenhagen, B.; Gumbsch, P.; Arzt, E.: Modelling Simul. Mater. Sci. Eng. 9 (2001) 157.10.1088/0965-0393/9/3/303Search in Google Scholar

31 Stoney, G.G.: Proc. Roy. Soc. A 82 (1909) 172.Search in Google Scholar

32 Dehm, G.; Ernst, F.; Mayer, J.; Möbus, G.; Müllejans, H.; Phillipp, F.; Scheu, C.; Rühle, M.: Z. Metallkd. 87 (1996) 898.Search in Google Scholar

33 Dehm, G.; Weiss, D.; Arzt, E.: Mater. Sci. Eng. A 309–310 (2001) 468.10.1016/S0921-5093(00)01703-2Search in Google Scholar

34 Stach, E.A.; Dahmen, U.; Nix, W.D.: Mater. Res. Soc. Symp. Proc. 619 (2000) 27.10.1557/PROC-619-27Search in Google Scholar

35 Ernst, F.; Raj, R.; Rühle, M.: Z. Metallkd. 12 (1999) 961.Search in Google Scholar

36 Mader, W.: Z. Metallkd. 80 (1989) 139.Search in Google Scholar

37 Gutkin, M.Y.; Militzer, M.; Romanov, A.E.; Vladimirov, V.I.: Phys. Stat. Sol. (a) 113 (1989) 337.10.1002/pssa.2211130211Search in Google Scholar

38 Vellinga, P.; De Hosson, J.T.M.; Vitek, V.: Acta Mater. 45 (1997) 1525.10.1016/S1359-6454(96)00279-0Search in Google Scholar

39 Romanov, A.E.; Wagner, T.; Rühle, M.: Scripta Mater. 38 (1998) 869.10.1016/S1359-6462(97)00570-8Search in Google Scholar

40 Keller, R.R.; Phelps, J.M.; Read, D.T.: Mater. Sci. Eng. A 214 (1996) 42.10.1016/0921-5093(96)10253-7Search in Google Scholar

41 Liu, X.H.; Ross, F.M.; Schwarz, K.W.: Mater. Res. Soc. Symp. Proc. 673 (2001) P4.2.1.10.1557/PROC-673-P4.2Search in Google Scholar

42 Courtney, T.H.: Mechanical Behavior of Materials, McGraw-Hill, Singapore (1990) 171.Search in Google Scholar

43 von Blanckenhagen, B.; Gumbsch, P.; Arzt, E.: Mater. Res. Soc. Symp. Proc. 673 (2001) P2.3.1.10.1557/PROC-673-P2.3Search in Google Scholar

44 Krämer, S.; Mayer, J.; Witt, C.; Weickenmeier, A.; Rühle, M.: Ultramicroscopy 81 (2000) 245.10.1016/S0304-3991(99)00191-6Search in Google Scholar

45 Spolenak, R.; Barr, D.L.; Gross, M.E.; Evans-Lutterodt, K.; Brown, W.L.; Tamura, N.; Macdowell, A.A.; Celestre, R.S.; Padmore, H.A.; Valek, B.C. Bravman, J.C.; Flinn, P.; Marieb, T.; Keller, R. R.; Batterman, B.W.; Patel, J. R.: Mater. Res. Soc. Symp. Proc. 612 (2000) D10.3.1.10.1557/PROC-612-D10.3.1Search in Google Scholar

46 Gao, H.; Zhang, L.; Baker, S.P.: Mater. Res. Soc. Symp. Proc. 673 (2001) P6.6.1.10.1557/PROC-673-P6.6Search in Google Scholar

Received: 2002-02-25
Published Online: 2022-01-31

© 2002 Carl Hanser Verlag, München

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