Abstract
Abstract An advanced model taking into account silicon cluster formation in the gas phase is suggested. 2D simulation is carried out at the growth parameters typical for chemical vapor deposition (CVD) of SiC in a vertical reactor. It is found that two main parameters have a significant effect on the nucleation and transport of the clusters in the gas phase: the input flow rate of silane and the thermophoretic force. Using a special criterion, the growth conditions favorable for parasitic graphite and silicon phases formation are determined. The obtained results are in good agreement with experimental data.
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