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Growth mechanism during selective epitaxy of p-doped SiC using VLS transport
Published online by Cambridge University Press: 13 June 2012
Abstract
Since a few years, VLS transport is studied not only for homoepitaxial SiC growth but also for SiC selective epitaxial growth (SEG). In this approach, a stacking of silicon and aluminum layers is deposited on the substrate and patterns are created by photolithography. Upon melting, the Al-Si liquid droplets are fed by propane to obtain the SEG of p-doped SiC. In this work, the growth mechanisms were deeper investigated, in particular the influence of the carrier gas (H2 or Ar) and the growth temperature. SEG experiments showed higher growth rates than those measured in the standard configuration (nonselective growth). Moreover, the SiC layers exhibited step-bunched areas characteristic of liquid phase growth but also areas with morphological features due to a disruption of the step-bunching growth mode.
Keywords
- Type
- Research Article
- Information
- MRS Online Proceedings Library (OPL) , Volume 1433: Symposium H – Silicon Carbide 2012—Materials, Processing and Devices , 2012 , mrss12-1433-h04-07
- Copyright
- Copyright © Materials Research Society 2012
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