Effect of post oxidation annealing on electrical characteristics of Ni/SiO2/4H-SiC capacitor with varying oxide thickness
Gupta Sanjeev K.1, Azam A.2, Akhtar J.1
1Sensors and Nano-Technology Group, Semiconductor Devices Area Central Electronics Engineering Research Institute (CEERI)/Council of Scientific and Industrial Research (CSIR), Pilani-333 031, India
2Center of Excellence in Materials science (Nanomaterials), Department of Applied Physics, Z.H. College of Engineering and Technology, Aligarh Muslim University, Aligar, India
Поступила в редакцию: 15 февраля 2011 г.
Выставление онлайн: 20 марта 2012 г.
This paper describes an experimental observation of post oxidation annealing (POA) treatment on current-voltage and capacitance-voltage characteristics of Ni/SiO2/4H-SiC system with varying oxide thickness. The leakage current of fabricated structures shows an asymmetric behavior having noticeable effect of POA with the polarity of gate bias (+V or -V at the anode). When compared with the conventional wet oxidation, the POA processes greatly reduce interface-state density and enhance reliability of devices. An extensive increment in the barrier height at SiO2/4H-SiC interface was observed due to POA, which resulted into lower forward leakage current. A significant improvement in the oxide charges are also demonstrated using C-V characteristics of POA treated structures.
- J.A. Cooper, A. Agarwal. Proc. IEEE, 90, 956 (2002)
- V.V. Afanas'ev, A. Stesmans, F. Ciobanu, G. Pensl, K.Y. Cheong, S. Dimitrijev. Appl. Phys. Lett., 82, 568 (2003)
- G.Y. Chung, C.C. Tin, J.R. Williams, K. McDonald, M.Di Ventra, S.T. Pantelides, L.C. Feldman, R.A. Weller. Appl. Phys. Lett., 76, 1713 (2000)
- V.V. Afanas'ev, A. Stesmans, M. Bassler, G. Pensl, M.J. Schulz. Appl. Phys. Lett., 76, 336 (2000)
- T.E. Rudenko, I.N. Osiyuk, I.P. Tyagulski, H.O. Olafsson, E.O. Sveinbjornsson, Sol. St. Electron., 49, 545 (2005)
- S. Dimitrijev, P. Tanner, and H.B. Harrison. Microelectron. Reliab., 39, 441 (1999)
- G.Y. Chung, C.C. Tin, J.R. Williams, K. McDonald, R.K. Chanana, R.A. Weller, S.T. Pantelides, L.C. Feldman, O.W. Holland, M.K. Das, J.W. Palmour. IEEE Electron. Dev. Lett., 22, 176 (2001)
- J.M. Knaup, P. Deak, Th. Frauenheim, A. Gali, Z. Hajnal, W.J. Choyke. Phys. Rev. B, 72, 115 323 (2005)
- J.G. Huang, R.J. Jaccodine, Donald R. Young. J. Appl. Phys., 75, 2564 (1994)
- R. Swope, W.S. Yoo, J. Hsieh, S. Shuchmann, F. Nagy, H. Nijenhuis, D. Mordo. J. Electrochem. Soc., 144, 2559 (1997)
- S. Hasegawa, A. Saito, J.A. Lubguban, T. Inokuma, Y. Kurata. Jpn. J. Appl. Phys., 37 4904 (1998)
- Y. Saito, U. Mori. Jpn. J. Appl. Phys., 37 L1172 (1998)
- K.Y. Cheong, W. Bahng, N.-K. Kim. Microelectron. Eng., 83, 65 (2006)
- F. Keiko, T. Yoichiro, I. Masayuki, O. Ken-ichi, T. Tetsuya, S. Tatsuya, K. Kazumasa, T. Jyunji, O. Tatsuo. Sol. St. Electron., 49, 896 (2005)
- H-F. Li, S. Dimitrijev, D. Sweatman, H.B. Harrison. J. Electron. Mater., 29, 1027 (2000)
- J. Campi, Y. Shi, Y. Luo, F. Yan, J.H. Zhao. IEEE Trans. Electron. Dev., 46, 511 (1999)
- F. Allerstam, H.O. Olafsson, G. Gudjonsson, D. Dochev, E.O. Sveinbjornsson, T. Rodle, R. Jos, J. Appl. Phys., 101, 124 502 (2007)
- Yu.Yu. Bacherikov, R.V. Konakova, A.N. Kocherov, P.M. Lytvyn, O.S. Lytvyn, O.B. Okhrimenko, A.M. Svetlichnyi. Techn. Phys., 48, 598 (2003)
- K. Ramesh, A.N. Chandorkar, J. Vasi. J. Appl. Phys., 65, 3958 (1989)
- S.K. Lai, D.W. Dong, A. Hartstein. J. Electrochem. Soc., 129, 2042 (1982)
- S.T. Chang, N.M. Johnson, S.A. Lyon. Appl. Phys. Lett., 44 316 (1984)
- P.J. Wright, K.C. Saraswat. IEEE Trans. Electron. Dev., 36, 879 (1989)
- Sanjeev K. Gupta, A. Azam, J. Akhtar. Pramana--J. Phys., 74, 325 (2010)
- Sanjeev K. Gupta, A. Azam, J. Akhtar. Microelectron. Int., 27, 106 (2010)
- R.K. Chanana, K. McDonald, M.D. Ventra, S.T. Pantelides, L.C. Fedman, G.Y. Chung, C.C. Tin, J.R. Williams, R.A. Waller. Appl. Phys. Lett., 77, 2560 (2000)
- V.V. Afanas'ev, M. Bassler, G. Pensl, M.J. Schultz, E.S. Kamienski. J. Appl. Phys., 79 3108 (1996)
- E. Pippel, J. Woltersdorf, H.O. Olafsson, E.O. Sveinbjornsson. J. Appl. Phys., 97 034 302 (2005)
- D.K. Schroder. Semiconductor material and device characterization (John Wiley \& Sons, Inc., Hoboken, N.J., 2006)
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