Epitaxial Growth of TiSi2 (C49) on (001)Si by Rapid Thermal Annealing

Abstract
A rapid thermal annealing at 670° C is performed for 20 s on a titanium film (35 nm) on silicon. Epitaxial growth of TiSi2 of a C49 structure is induced by the annealing, when the substrate is heated to 400° C before titanium sputtering. In contrast, a fibre texture is obtained if the substrate is not heated. The in-plane orientations determined by X-ray and electron diffraction are in good agreement with those theoretically calculated using the method of the maximum number of coincidence sites at the epitaxial interface.