Patent ID: 8803245
Filing Date: 2014-08-12
Classification: H01L

Abstract:
1. A structure comprising: a first contact metal disposed on a silicide, the silicide is in contact with a source/drain contact of a substrate; a single non-layered second contact metal disposed on a top surface of the first contact metal, wherein the single non-layered second contact metal is disposed within an interlayer dielectric that is disposed on a top surface of the gate, wherein the gate comprises a spacer directly adjacent the gate, and wherein the silicide is disposed and substantially confined within a source/drain contact area adjacent the spacer, wherein the silicide is coupled with the first contact metal, wherein the first contact metal, the gate, and spacer are planar to one another; and wherein the single non-layered second contact metal is a tapered contact metal, the tapered contact metal includes a bottom portion that is smaller in diameter compared to the diameter of a top portion, wherein the bottom portion is in contact with the first contact metal, and has the diameter smaller than a diameter of the top surface of the first contact metal.