Reduction of Stacking Faults in Fast Epitaxial Growth of 4H-SiC and its Impacts on High-Voltage Schottky Diodes

Abstract:

Article Preview

Generation of stacking faults (SFs) in fast epitaxial growth of 4H-SiC(0001) has been reduced in vertical hot-wall chemical vapor deposition (CVD). 52 µm-thick epilayers with and without SFs are used to investigate impacts of SFs on the performance of Schottky barrier diodes (SBDs). The density, shape and structure of stacking faults have been characterized by cathodeluminescence (CL), photoluminescence (PL) and high-resolution transmission electron microscopy (HR-TEM). These analyses indicate that most (> 75 %) SFs with an 8H structure are generated near the epilayer/substrate interface during CVD. It is also revealed that the SFs cause the lowering of Schottky barrier height as well as the decrease of breakdown voltage.

Info:

Periodical:

Materials Science Forum (Volumes 483-485)

Edited by:

Dr. Roberta Nipoti, Antonella Poggi and Andrea Scorzoni

Pages:

151-154

DOI:

10.4028/www.scientific.net/MSF.483-485.151

Citation:

H. Fujiwara et al., "Reduction of Stacking Faults in Fast Epitaxial Growth of 4H-SiC and its Impacts on High-Voltage Schottky Diodes", Materials Science Forum, Vols. 483-485, pp. 151-154, 2005

Online since:

May 2005

Export:

Price:

$35.00

[1] I. Kamata, H. Tsuchida, T. Jikimoto and K. Izumi: Jpn. J. Appl. Phys. 41 (2002), L1137.

[2] T. Kimoto, N. Miyamoto and H. Matsunami: IEEE Trans. Electron Devices 46 (1999), p.471.

[3] K. Kojima, T. Ohno, T. Fujimoto, M. Katsuno, N. Ohtani, J. Nishio, Y. Ishida, T. Takahashi, T. Suzuki, T. Tanaka and K. Arai: Mat. Sci. Forum 433-436 (2003), p.925.

DOI: 10.4028/www.scientific.net/msf.433-436.925

[4] K. Fujihira, T. Kimoto and H. Matsunami: J. Cryst. Growth 255 (2003), p.136.

[5] S. Bai, G. Wagner, E. Shishkin, W. J. Choyke, R. P. Devaty, M. Zhang, P. Pirouz and T. Kimoto: Mat. Sci. Forum 389-393 (2002), p.589.

[6] H. Jacobson, J. P. Bergman, C. Hallin, T. Tuomi and E. Janzén: Mat. Sci. Forum 433-436 (2003), p.913.

[7] J. Q. Liu, M. Skowronski, C. Hallin, R. Söderholm and H. Lendenmann: Appl. Phys. Lett. 80 (2002), p.749.

[8] S. G. Sridhara, F. H. C. Carlsson, J. P. Bergman and E. Janzén: Appl. Phys. Lett. 79 (2001), p.3944.

[9] T. Hatakeyama, M. Kushibe, T. Watanabe, S. Imai and T. Shinohe: Mat. Sci. Forum 433-436 (2003), p.831.

In order to see related information, you need to Login.