Patent ID: 7226827

Claim:
A method of fabricating a semiconductor device, having a semiconductor body comprising i) a first semiconductor structure having a dielectric layer and a first electrode, wherein the first electrode comprises a first conductor, and ii) a second semiconductor structure having a dielectric layer and a second electrode, wherein the second electrode comprises a second conductor which differs from the first conductor, and wherein a part of the second conductor that adjoins the dielectric layer has a different work function from a corresponding part of the first conductor, the method comprising: forming a dielectric layer on the semiconductor body; applying a first metal layer onto the dielectric layer, and depositing a silicon layer on the first metal layer, wherein the silicon layer and first metal layer react with each other at a location of at least one semiconductor structure so as to form a first metal silicide at that location, wherein the parts of the conductors having different work functions are formed by etching a layer other than the silicon layer at the location of one of the two semiconductor structures.