Modified Hot-Zone Design of Growth Cell for Reducing the Warpage of 6”-SiC Wafer

Article Preview

Abstract:

The modified hot-zone design, consisting of a new design and new materials for the backside of SiC seed holder was adopted for reducing stress in grown SiC crystal ingot and for reducing the warpage of 6-inch SiC wafer. Crucible lid on the backside of SiC seed holder was designed to be movable during the growth process. Based on the warp value and mapping measurement of FWHM (Full width at half maximum) value in X-ray rocking curve, the crystal quality of SiC crystals grown with new hot-zone design was observed to be better than conventional design.

You might also be interested in these eBooks

Info:

Periodical:

Materials Science Forum (Volume 1004)

Pages:

32-36

Citation:

Online since:

July 2020

Export:

Price:

* - Corresponding Author

[1] Y. M. Tairov, V. F. Tsevtkov, General principles of growing large-size single crystals of various silicon carbide polytypes, J. Crystal Growth. 52 (1981) 146-150.

DOI: 10.1016/0022-0248(81)90184-6

Google Scholar

[2] Y. Tupitsyn, A. Arjunan, R. T. Bondokov, R. M. Kennedy, T. S. Sudarshan, A Study of 6H-seeded 4H-SiC bulk growth by PVT, Mater. Sci. Forum. 483-485 (2005) 21-24.

DOI: 10.4028/www.scientific.net/msf.483-485.21

Google Scholar

[3] A. R. Powell, J. J. Sumakeris, Y. Khlebnikov, M. Paisle, R. Leonard, E. Deyneka, S. Gangwal, J. Ambati, V. Tsevtkov, J. Seaman, A. McClure, C. Horton, O. Kramarenko, V. Sakhalkar, M. O'Loughlin, A. Burk, J. Guo, M. Dudley, E. Balkas, Bulk growth of large area SiC crystals, Mater. Sci. Forum. 858 (2016) 5-10.

DOI: 10.4028/www.scientific.net/msf.858.5

Google Scholar

[4] B. K. Jang, J. G. Kim, J. W. Choi, K. R. Ku, S. K. Ko, Korea Patent, 10-2018-0159996. (2018).

Google Scholar

[5] S. Nishino. Y. Kojima, J. Saraie, Springer proceeding in Physics, in: Gary L. Harris, Michael Spencer, Cary Y.-W Yang (Eds.), Amorphous and Crystalline Silicon Carbide III, Springer-Verlang, New York, (1992).

DOI: 10.1007/978-3-642-84402-7_2

Google Scholar