Patent ID: 7550851

Claim:
A semiconductor structure comprising: a silicon surface: a plurality of substantially identical WN x layers formed over the silicon surface, wherein x is between 1 and 6, the WN x layers being formed by a repeated sequential deposition method; a separate nitrogen-containing monolayer formed over a top surface of the plurality of WN x layers, the nitrogen-containing monolayer containing no tungsten when initially formed over the top surface of the plurality of WN x layers; a tungsten layer, thicker than the plurality of WN x layers, formed over the nitrogen-containing monolayer using a chemical vapor deposition (CVD) process, which reacts with the nitrogen-containing monolayer to form an additional WN x monolayer over the top surface of the plurality of WN x layers, wherein a tungsten layer containing no nitrogen overlies the additional WN x monolayer.