Patent ID: 6168837
Filing Date: 2001-01-02
Classification: C23C

Abstract:
A process for depositing titanium silicide film on a substrate, said process comprising: placing the substrate within a plasma-enhanced chemical vapor deposition (PECVD) chamber; admitting vapor-phase tertiary-butyltris-dimethylamido-titanium molecules into said chamber; admitting vapor phase silicon containing compound into said chamber; heating the substrate to a temperature of about 400.degree. to 600.degree. C.; and generating a plasma which converts a portion of molecules of the silicon-containing compound into reactive species including radicals, ions and metastables; and depositing a predominantly titanium silicide film on said substrate, said predominantly titanium silicide film containing less than 5 percent carbon impurities by weight, containing less than 10 percent oxygen impurities by weight, and having a non-annealed sheet resistance of approximately 2 ohms per square.