TiN thin films designed as a diffusion barrier for Cu metalization were deposited by DC magnetron sputtering method. The electrical properties and subsequent annealing effects were investigated to obtain an optimized TiN thin films. TiN films were dep...
TiN thin films designed as a diffusion barrier for Cu metalization were deposited by DC magnetron sputtering method. The electrical properties and subsequent annealing effects were investigated to obtain an optimized TiN thin films. TiN films were deposited under the combined conditions of substrate temperature range of 200 - 400℃ and the N₂ partial pressure 2, 6, 10 mTorr. The low pressure annealing was performed at the temperature range of 500 - 900℃. The results analyzed by 4-point probe, XRD, and AES depth profiling of compositions indicated inter-diffusion of Cu and Si.