Patent ID: 8313990
Filing Date: 2012-11-20
Classification: B82Y,H01L

Abstract:
1. A method to induce radial strain in a field effect transistor (FET) nanowire, the method comprising: providing a wafer including a substrate, an insulator layer disposed on the substrate and a silicon-on-insulator (SOI) layer disposed on the insulator layer; patterning a nanowire in the SOI layer such that the nanowire extends longitudinally in a plane of the SOI layer; along a length of the nanowire, surrounding an entire surface of the nanowire with a gate conductor and surrounding the gate conductor with poly-Si to define a channel region in said nanowire, the entire surface of the nanowire being defined as all upper, lower and side surfaces of the nanowire along the length of the nanowire; and reacting the poly-Si with silicide forming metal deposited thereon to form a fully silicided (FUSI) material to induce radial strain in the nanowire prior to fabrication of source and drain regions relative to the nanowire.