Patent ID: 8168503

Claim:
A method of fabricating a Schottky field effect transistor comprising: providing a substrate including at least a first semiconductor layer overlying a dielectric layer, wherein the first semiconductor layer has a thickness of less than 10.0 nm; forming a gate structure directly on the first semiconductor layer; forming a raised semiconductor material on the first semiconductor layer adjacent to the gate structure; and converting the raised semiconductor material into Schottky source and drain regions comprised of a metal semiconductor alloy, and wherein a non-reacted semiconductor material having a thickness of less than 5.0 nm is present between the Schottky source and drain regions and the dielectric layer, wherein the non-reacted semiconductor material reduces delamination of the raised semiconductor material in comparison to a raised semiconductor material fully reacted to the metal semiconductor alloy so that the metal semiconductor alloy is in direct contact with the dielectric layer.