Patent ID: 9627387
Date: 2017-04-18
CPC Classifications: H01L

Claim:
1. A semiconductor device comprising: a semiconductor substrate including active portions, each of the active portions including first and second dopant regions; word lines on the substrate, the word lines extending in a first direction and intersecting the active portions; first and second bit lines on the substrate, the first and second bit lines intersecting the word lines and extending in a second direction that is perpendicular to the first direction, the first and second bit lines being adjacent to each other and connected to the first dopant regions; and contact structures in regions between the word lines and between the first and second bit lines when viewed from a plan view, the contact structures being in contact with the second dopant regions, respectively, the contact structures each including a contact plug in contact with a portion of a contact pad, the contact pads of the contact structures contacting the second dopant regions, the contact plugs being spaced apart from sidewalls of the first and second bit lines by a first distance between the first and second bit lines, each of the contact plugs having a bottom width that is less than a width of the contact pads, and the contact pads being spaced apart from the sidewall of the first bit line by a second distance greater than the first distance and being adjacent to the sidewall of the second bit line.