CoSi/sub 2//SiGe contact formation by Co/a-SiGe/Si solid state reaction

The Co/a-SiGe/Si solid state reaction has been studied in this paper. The experimental results demonstrated the simultaneously SiGe/Si solid phase hetero-epitaxy and CoSi/sub 2//SiGe contact formation. The SiGe crystallization is a result of the Ge rejection and interdiffusion with Si during the Co/a-SiGe/Si ternary interaction.