摘要:
There is provided a method of manufacturing a semiconductor device. In the method, a gate insulation layer including a high-k dielectric material is formed on a substrate. An etch stop layer is formed on the gate insulation layer. A metal layer is formed on the etch stop layer. A hard mask including amorphous silicon is formed on the metal layer. The metal layer is patterned using the hard mask as an etching mask to form a metal layer pattern.
摘要:
Methods of manufacturing a semiconductor device include forming a gate insulation layer including a high-k dielectric material on a substrate that is divided into a first region and a second region; forming a diffusion barrier layer including a first metal on a second portion of the gate insulation layer in the second region; forming a diffusion layer on the gate insulation layer and the diffusion barrier layer; and diffusing an element of the diffusion layer into a first portion of the gate insulation layer in the first region.
摘要:
Methods of manufacturing a semiconductor device include forming a gate insulation layer including a high-k dielectric material on a substrate that is divided into a first region and a second region; forming a diffusion barrier layer including a first metal on a second portion of the gate insulation layer in the second region; forming a diffusion layer on the gate insulation layer and the diffusion barrier layer; and diffusing an element of the diffusion layer into a first portion of the gate insulation layer in the first region.
摘要:
An insulation layer is formed on a substrate having an NMOS region and a PMOS region defined therein. A first conductive layer is formed on the insulation layer in the PMOS region, leaving a portion of the insulation layer in the NMOS region exposed. Nitriding is performed to produce a first nitrogen concentration in the insulation layer in the NMOS region and a second nitrogen concentration less than the first nitrogen concentration in the insulation layer in the PMOS region. A second conductive layer is formed on the insulation layer and the first conductive layer and the first and second conductive layers and the insulation layer are patterned to form a first gate structure and a second gate structure in the NMOS region and the PMOS region, respectively.
摘要:
There is provided a method of manufacturing a semiconductor device. In the method, a gate insulation layer including a high-k dielectric material is formed on a substrate. An etch stop layer is formed on the gate insulation layer. A metal layer is formed on the etch stop layer. A hard mask including amorphous silicon is formed on the metal layer. The metal layer is patterned using the hard mask as an etching mask to form a metal layer pattern.
摘要:
A method of forming agate structure having an improved electric characteristic is disclosed. A gate insulating layer is formed on a substrate and a metal layer is formed on the gate insulating layer. Then, an amorphous silicon layer is formed on the metal layer by a physical vapor deposition (PVD) process. An impurity doped polysilicon layer is formed on the amorphous silicon layer. Formation of an oxide layer at an interface between the amorphous silicon layer and the metal layer may be prevented.
摘要:
A method of fabricating a semiconductor device includes: forming an epitaxial layer on a semiconductor substrate; forming a capping layer having a first thickness on the epitaxial layer; and oxidizing the capping layer in an oxygen atmosphere to form a first gate dielectric layer having a second thickness.
摘要:
A method of forming agate structure having an improved electric characteristic is disclosed. A gate insulating layer is formed on a substrate and a metal layer is formed on the gate insulating layer. Then, an amorphous silicon layer is formed on the metal layer by a physical vapor deposition (PVD) process. An impurity doped polysilicon layer is formed on the amorphous silicon layer. Formation of an oxide layer at an interface between the amorphous silicon layer and the metal layer may be prevented.
摘要:
A method of fabricating a semiconductor device includes: forming an epitaxial layer on a semiconductor substrate; forming a capping layer having a first thickness on the epitaxial layer; and oxidizing the capping layer in an oxygen atmosphere to form a first gate dielectric layer having a second thickness.