Thermal history effect on the nucleation of oxygen precipitates in germanium doped Cz-silicon studied by high-energy X-ray diffraction

Li Z, Will J, Dong P, Yang D (2017)


Publication Status: Published

Publication Type: Journal article

Publication year: 2017

Journal

Publisher: ELSEVIER SCIENCE BV

Book Volume: 479

Pages Range: 46-51

DOI: 10.1016/j.jcrysgro.2017.09.023

Abstract

The oxygen (O) precipitate growth kinetics from moderate and high germanium (Ge) doped Czochralskigrowth silicon (Cz-Si) are in-situ investigated at 1000 degrees C utilizing high-energy X-ray diffraction and analyzed with respect to precipitate density within a diffusion-driven growth model. Distinct different precipitation kinetics are observed for high Ge doped specimens. From the comparison of three thermal treatments, it was found that even for a high Ge concentration the nucleation rate at 800 degrees C is not influenced, however it facilitates larger grown-in precipitates of smaller amount as compared to the precipitates in undoped and moderately Ge doped samples. However, those grown-in O precipitates can be erased either by a direct annealing at 1200 degrees C or 1000 degrees C, but on the other hand stabilized by an annealing step at 800 degrees C, which in this manner as a drift step of grown-in precipitates for the high Ge-doped samples. In comparison additional nuclei are formed at 800 degrees C in the moderate and undoped cases. (C) 2017 Elsevier B.V. All rights reserved.

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APA:

Li, Z., Will, J., Dong, P., & Yang, D. (2017). Thermal history effect on the nucleation of oxygen precipitates in germanium doped Cz-silicon studied by high-energy X-ray diffraction. Journal of Crystal Growth, 479, 46-51. https://dx.doi.org/10.1016/j.jcrysgro.2017.09.023

MLA:

Li, Zhen, et al. "Thermal history effect on the nucleation of oxygen precipitates in germanium doped Cz-silicon studied by high-energy X-ray diffraction." Journal of Crystal Growth 479 (2017): 46-51.

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