Epitaxial SiC Formation at the SiO2/Si Interface by C+ Implantation into SiO2 and Subsequent Annealing

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Abstract:

An approach for the defect density reduction in 3C-SiC epitaxially grown on Si is to improve the quality of the carbonized layer during the early stage of growth. For this reason the conventional carbonization process was replaced by a slower and nearer equilibrium carbonization method. Carbon is introduced by implantation into oxide of an oxidized Si substrate, near the SiO2/Si interface, and then it is transferred to the Si surface by annealing. Good quality 3C-SiC grains are formed embedded into the Si substrate, which are absolutely flat at the SiO2/Si interface. Another advantage of the new carbonization process is the elimination of the cavities due to the suppression of Si out-diffusion.

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Materials Science Forum (Volumes 483-485)

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233-236

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May 2005

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© 2005 Trans Tech Publications Ltd. All Rights Reserved

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