Patent ID: 8653608

Claim:
An integrated circuit structure comprising: a substrate; and a fin field-effect transistor (FinFET) comprising: a fin over the substrate and comprising a first fin portion and a second fin portion; a gate stack on a top surface and sidewalls of the first fin portion; an epitaxial semiconductor layer comprising a first portion directly over the second fin portion, and a second portion on sidewalls of the second fin portion; a silicide layer on the epitaxial semiconductor layer, wherein a peripheral ratio of a total length of an effective silicide peripheral of the FinFET to a total length of a fin peripheral of the FinFET is greater than 1, and wherein the effective silicide peripheral and the fin peripheral each have a different cross sectional profile shape in a same plane; and a dummy fin, wherein the epitaxial semiconductor layer extends on a top surface and sidewalls of the dummy fin, and wherein the effective silicide peripheral does not comprise any sidewall portion on outer sides of the dummy fin.