发明授权
US07670932B2 MOS structures with contact projections for lower contact resistance and methods for fabricating the same 有权
具有用于较低接触电阻的接触突起的MOS结构及其制造方法

MOS structures with contact projections for lower contact resistance and methods for fabricating the same
摘要:
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.
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