Patent ID: 6268288
Filing Date: 2001-07-31
Classification: C23C,H01L

Abstract:
A method of depositing a tantalum nitride (TaN.sub.x) film on a semiconductor device substrate having a temperature in the range of about 300.degree. C. to 500.degree. C., the method comprising providing a vapor of a tantalum halide precursor selected from the group consisting of tantalum pentachloride and tantalum pentafluoride to a reaction chamber containing said substrate by heating said precursor to a temperature sufficient to vaporize said precursor, then combining said vapor with a process gas consisting essentially of nitrogen and one or more of hydrogen, argon and helium, depositing said TaN.sub.x on said substrate by a thermal chemical vapor deposition (CVD) process and plasma treating said deposited TaN.sub.x with a hydrogen-containing gas.