Patent ID: 8525289
Filing Date: 2013-09-03
Classification: H01L

Abstract:
1. A semiconductor device, comprising: a first active region; a first gate electrode structure formed on said first active region, said first gate electrode structure comprising a dielectric base material and a high-k dielectric material formed on said dielectric base material, said high-k dielectric material comprising a first threshold adjusting metal species in said first gate electrode structure; a second active region; a second gate electrode structure formed on said second active region, said second gate electrode structure comprising said dielectric base material and said high-k dielectric material formed on said dielectric base material, said high-k dielectric material comprising a second threshold adjusting metal species in said second gate electrode structure; and a metal-containing electrode material, said metal-containing electrode material being formed on said high-k dielectric material in said first and second gate electrode structures.