Anova Law Group, PLLC
Semiconductor device and fabrication method thereof
A semiconductor device and fabrication method are provided. The method includes: providing a base substrate; forming a first dielectric layer on the base substrate; forming a target gate structure in the first dielectric layer and on the base substrate, where a first groove is formed above the target gate structure and in the first dielectric layer; forming a second groove by etching the first dielectric layer on sidewalls of the first groove to expand an opening of the first groove; forming a protective layer in the second groove; and forming conductive plugs in the first dielectric layer on sides of the target gate structure and the protective layer. The protective layer has a dielectric constant greater than the first dielectric layer.
Semiconductor Manufacturing International (Beijing) Corporation Semiconductor Manufacturing International (Shanghai) Corporation
H H H H H H H H H H H H H H H
H01L H01L H01L H01L H01L H01L H01L H01L H01L H01L H01L H01L H01L H01L H01L
inventional inventional inventional inventional inventional inventional inventional inventional inventional additional inventional inventional inventional inventional inventional
Yong
Li