PRACTICAL PROCESSING ISSUES IN TITANIUM SILICIDE CVD

This laboratory has recently developed a new process for the chemical vapor deposition of titanium disilicide on Si. The present work moves beyond the kinetic characterization of previous efforts to examine how this process works in terms of material properties, surface/interface roughness, dopant redistribution, nucleation control and selectivity/ overgrowth on both SiO2 and Si3N4. While questions remain about the su rface structures responsible for nucleation, in all aspects examined h ere the process appears suitable for device fabrication. (C) 1997 Else vier Science B.V.