公开(公告)号：US20120142154A1

公开(公告)日：2012-06-07

申请号：US13354579

申请日：2012-01-20

申请人： FUJIO MASUOKA ,  Tomohiko Kudo ,  Shintaro Arai ,  Hiroki Nakamura

发明人： FUJIO MASUOKA ,  Tomohiko Kudo ,  Shintaro Arai ,  Hiroki Nakamura

IPC分类号： H01L21/336

CPC分类号： H01L29/78642 ,  H01L29/42392 ,  H01L29/66666

摘要： An SGT production method includes forming a pillar-shaped first-conductive-type semiconductor layer and forming a second-conductive-type semiconductor layer underneath the first-conductive-type semiconductor layer. A dummy gate dielectric film and a dummy gate electrode are formed around the first-conductive-type semiconductor layer and a first dielectric film is formed on an upper region of a sidewall of the first-conductive-type semiconductor layer in contact with a top of the gate electrode. A first dielectric film is formed on a sidewall of the gate electrode and a second-conductive-type semiconductor layer is formed in an upper portion of the first-conductive-type semiconductor layer. A second-conductive-type semiconductor layer is formed in an upper portion of the first-conductive-type semiconductor layer and a metal-semiconductor compound is formed on each of the second-conductive-type semiconductor layers. The dummy gate dielectric film and the dummy gate electrode are removed and a high-k gate dielectric film and a metal gate electrode are formed.

摘要翻译： SGT制造方法包括形成柱状的第一导电型半导体层，在第一导电型半导体层的下方形成第二导电型半导体层。 在第一导电型半导体层周围形成虚拟栅极电介质膜和虚拟栅电极，并且第一电介质膜形成在第一导电型半导体层的与顶部接触的第一导电型半导体层的侧壁的上部区域 栅电极。 第一电介质膜形成在栅电极的侧壁上，第二导电型半导体层形成在第一导电型半导体层的上部。 第二导电型半导体层形成在第一导电型半导体层的上部，并且在每个第二导电型半导体层上形成金属半导体化合物。 除去虚拟栅极电介质膜和虚拟栅电极，形成高k栅极电介质膜和金属栅电极。