MOS structures with contact projections for lower contact resistance and
methods for fabricating such MOS structures have been provided. In an
embodiment, a method comprises providing a semiconductor substrate,
fabricating a gate stack on the substrate, and forming a contact
projection on the substrate. Ions of a conductivity-determining type are
implanted within the substrate using the gate stack as an ion
implantation mask to form impurity-doped regions within the substrate. A
metal silicide layer is formed on the contact projection and a contact is
formed to the metal silicide layer. The contact is in electrical
communication with the impurity-doped regions via the contact projection.