Smooth 4H-Sic Epilayers Grown with High Growth Rates with Silane/Propane Chemistry Using 4° Off-Cut Substrates
Materials science forum(2016)
Abstract
4H-SiC epilayers with very smooth surfaces were grown with high growth rates on 4° off-cut substrates using standard silane/propane chemistry. Specular surfaces with RMS values below 0.2 nm are presented for epilayers grown with growth rates up to 30 μm/h using horizontal hot-wall chemical vapor deposition, with up to 100 μm thickness. Optimization of in-situ etching conditions and C/Si ratio are presented.
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