Substrate development for the growth of silicon foils by Ramp Assisted Foil Casting Technique (RAFT)
1990
Abstract A variety of potential substrates has been tested for use in the RAFT (ramp assisted foil casting technique) process. The best results were obtained for graphite ramps coated with pyrolitic carbon (PyC). The interaction mechanism between the silicon melt and the PyC surface is explained in terms of a SiC interface layer which governs the crystallization of the melt film and the separation of the RAFT foil from the ramp.
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