A semiconductor component having a titanium silicide contact structure and
a method for manufacturing the semiconductor component. A layer of
dielectric material is formed over a semiconductor substrate. An opening
having sidewalls is formed in the dielectric layer and exposes a portion
of the semiconductor substrate. Titanium silicide is disposed on the
dielectric layer, sidewalls, and the exposed portion of the semiconductor
substrate. The titanium silicide may be formed by disposing titanium on
the dielectric layer, sidewalls, and exposed portion of the semiconductor
substrate and reacting the titanium with silane. Alternatively, the
titanium silicide may be sputter deposited. A layer of titanium nitride
is formed on the titanium silicide. A layer of tungsten is formed on the
titanium nitride. The tungsten, titanium nitride, and titanium silicide
are polished to form the contact structures.