Patent ID: 6696109
Filing Date: 2004-02-24
Classification: C23C

Abstract:
A titanium silicide film deposition process comprising:placing a substrate within a plasma-enhanced chemical vapor deposition chamber, the chamber including one of a remote source plasma generator for generating a plasma for flowing into the deposition chamber and an RF power source for generating a plasma within the chamber; admitting vapor-phase tertiary-butyltris-dimethylamido-titanium into the chamber; admitting a vapor phase silicon-containing compound into the chamber, the silicon-containing compound comprising at least one compound of a silane compound, chlorinated silane compounds, fluorinated silane compounds and organometallic silicon compounds; heating the substrate to a temperature in the range of about 400Â° to 600Â° C.; generating a plasma converting a portion of the silicon-containing compound into reactive species; and depositing a predominantly titanium silicide film on the substrate, the 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 nonannealed sheet resistance of approximately 2 ohms per square.