Patent ID: 8004060

Claim:
A semiconductor structure comprising: a metal portion having a substantially planar top surface and located on a high dielectric constant material layer having a dielectric constant greater than 4.0 said high dielectric constant material is located on an upper surface of a semiconductor substrate; a semiconductor portion located directly on a portion of said substantially planar top surface of said metal portion; a metal semiconductor alloy portion located on a top surface of said semiconductor portion; an insulator layer located directly on another portion of said substantially planar top surface of said metal portion and on a portion of an upper surface of said metal semiconductor alloy portion; a first dielectric spacer portion having one edge that is located on a sidewall of said semiconductor portion and having a base that is located directly on said another portion of said substantially planar top surface of said metal portion; a second dielectric spacer portion having an edge that is located on a sidewall of said metal portion, disjoined from said semiconductor portion, and having a base located beneath said substantially planar top surface of said metal portion; and a third dielectric spacer portion having an edge that is located on sidewalls of said semiconductor portion and said metal portion and having a base located beneath said substantially planar surface of said metal portion.