Patent ID: 9224737
Filing Date: 2015-12-29
Classification: H01L

Abstract:
1. A finFET comprising: a first fin and a second fin extending above a semiconductor substrate, with a shallow trench isolation (STI) region therebetween, and a space defined between the first and second fins above a top surface of the STI region, the fins having a first longitudinal direction; a first gate electrode over the first fin, the first gate electrode having a second longitudinal direction normal to the first longitudinal direction; a flowable dielectric material layer on the top surface of the STI region, so as to define a step height between the top surface of the dielectric material and the top surfaces of the first and second fins that is smaller than a distance between the top surface of the STI region and the top surfaces of the first and second fins; and first and second epitaxial SiGe lateral fin extensions above the dielectric, on the first and second fins, respectively, the fin extensions extending laterally beyond side edges of the fin above a top surface of the dielectric material.