Patent ID: 9698268
Date: 2017-07-04
CPC Classifications: H01L

Claim:
1. A semiconductor device comprising: a base comprising a first semiconductor material; a first active fin upwardly protruding from the base and comprising a second semiconductor material different from the first semiconductor material; a second active fin upwardly protruding from the base, the second active fin comprising the second semiconductor material and being spaced apart from the first active fin; a gate insulation layer on a first lateral surface, a first top surface, and a second lateral surface of the first active fin, and on a third lateral surface, a second top surface, and a fourth lateral surface of the second active fin; and a gate electrode on the gate insulation layer, wherein the first active fin comprises first and second active layers that are sequentially stacked, wherein the first active layer comprises the second semiconductor material, and wherein the second active layer comprises a third semiconductor material different from the second semiconductor material; and a fin upwardly protruding from the base between the first and second active fins and comprising the first semiconductor material.