Patent ID: 9627538
Date: 2017-04-18
CPC Classifications: H01L

Claim:
1. A fin field effect transistor (FinFET), comprising: a substrate, having a top surface, at least a shortened fin extending upwardly from the top surface of the substrate and at least a gate stack formed above the substrate, wherein the gate stack is extended perpendicularly to an extending direction of the shortened fin, and the shortened fin is outside the gate stack; an insulation formed on the top surface of the substrate, comprising: spacers, formed on the top surface of the lateral portion of the insulation but not formed on the top surface of the central portion, wherein the top surface of the shortened fin is lower than bottoms of the spacers formed on the lateral portion of the insulation; and an epitaxial (Epi) layer grown on the shortened fin and leaning against the lateral portion of the insulation.