Patent ID: 9224787
Filing Date: 2015-12-29
Classification: H01L

Abstract:
1. A method of fabricating a nonvolatile memory device, comprising: forming a transistor on a substrate, the transistor including an impurity region formed in the substrate; forming a lower contact electrically connected to the impurity region; forming a first interlayer insulation layer on the lower contact; forming a first trench and a second trench in the first interlayer insulation layer, the first trench extending in a first direction and the second trench extending in a second direction different from the first direction; and forming an information storage unit electrically connected to the lower contact on a top surface of the first interlayer insulation layer using point cusp magnetron-physical vapor deposition (PCM-PVD); and forming a dummy information storage unit on bottom surfaces of the first and second trenches; wherein the information storage unit is not connected to the dummy information storage unit.