Materials Science Forum, Vol.389-3, 191-194, 2002
Growth characteristics of SiC in a hot-wall CVD reactor with rotation
SiC epitaxy has been studied in a horizontal hot-wall CVD reactor with rotation by gas foil levitation. A capacity of three 2 inch wafers has been realized, and the thickness uniformity over a 2 inch wafer is below 1% and the n-doping uniformity over a 35mm wafer, below 10%. Both n- and p-type doping is readily achieved with no memory effect. The layer morphology has been investigated and a featureless surface has been obtained through process optimization and a modification of the hot zone.