Patent ID: 9711603
Date: 2017-07-18
CPC Classifications: H01L

Claim:
1. A semiconductor device comprising: a substrate; first and second conductive patterns stacked on the substrate, each of the first and second conductive patterns extending in a first direction, the second conductive pattern have a length less than the first conductive pattern in the first direction; a filling insulation layer covering the first and second conductive patterns; and first and second contact plugs on the substrate, a width of the top surface of the first contact plate being greater than a width of a bottom surface of the first contact body, the second contact plug including a second contact plate in the second conductive pattern and a second contact body on a top surface of the second contact plate and penetrating the filling insulating layer, a width of the top surface of the second contact plate being greater than a width of a bottom surface of the second contact body.