Comparative study of Ni-silicide and Co-silicide for sub 0.25-?m technologies
In this work, the phase formation is compared for Ni- and Co-silicidation with and without Ti cap. In addition, the electrical performance of Ni-silicidation with and without Ti-cap is investigated and compared to the performance of a Co-silicidation process with a Ti cap that has the same Si consumption. The lateral confinement of the silicide in the active areas is also studied.
ni-silicide co-silicide phase formation sheet resistance silicon consumption