Patent ID: 8846477
Filing Date: 2014-09-30
Classification: H01L

Abstract:
1. A method of forming a FinFET device, comprising: forming a fin in a semiconducting substrate, the fin having an upper surface and sidewalls; forming a sacrificial gate structure above said fin, said sacrificial gate structure comprising a sacrificial gate insulation layer positioned on the upper surface and at least a portion of the sidewall so said fin, a layer of insulating material positioned above said sacrificial gate insulation layer, a sacrificial gate electrode layer positioned above said layer of insulating material and a gate cap layer positioned above said sacrificial gate electrode layer; forming a sidewall spacer adjacent opposite sides of said sacrificial gate structure; removing an entirety of said sacrificial gate structure to thereby define a gate cavity that exposes a portion of said fin, wherein said gate cavity is laterally defined by said spacers; and forming a replacement gate structure in said gate cavity.