The Role of Chlorine during High Growth Rate Epitaxy

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Abstract:

The influence of chlorine has been investigated for high growth rates of 4H-SiC epilayers on 4o off-cut substrates. Samples were grown at a growth rate of approximately 50 and 100 μm/h and various Cl/Si ratios. The growth rate, net doping concentration and charge carrier lifetime have been studied as a function of Cl/Si ratio. This study shows some indications that a high Cl concentration in the growth cell leads to less availability of Si during the growth process.

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Materials Science Forum (Volumes 821-823)

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141-144

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June 2015

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© 2015 Trans Tech Publications Ltd. All Rights Reserved

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