Patent ID: 9559147
Date: 2017-01-31
CPC Classifications: H01L

Claim:
1. A semiconductor device, comprising: a substrate; a plurality of first conductive lines on the substrate, the first conductive lines extending in a first direction; a plurality of first structures on the first conductive lines, the first structures being spaced apart from each other, the first structures including a switching pattern and a first electrode sequentially stacked, and top surfaces of the switching pattern and the first electrode being substantially coplanar with each other; a first insulation pattern on the substrate, the first insulation pattern extending in the first direction between the first structures to fill a space between the first structures in a second direction that is substantially perpendicular to the first direction, and the first insulation pattern having a first top surface that is higher than a top surface of the first structures; a second insulation pattern on the substrate, the second insulation pattern extending in the second direction between the first structures to fill a space between the first structures in the first direction, and the second insulation pattern having a second top surface that is higher than a top surface of each of the first structures; a variable resistance pattern on the first structures, the variable resistance pattern filling an opening defined by the first and second insulation patterns; and a second electrode on the variable resistance pattern.