Patent ID: 9018720
Filing Date: 2015-04-28
Classification: G11C,H01L

Abstract:
1. A method for fabricating a semiconductor device, comprising: forming a magnetic tunnel junction (MTJ) element on a substrate; forming a hard mask pattern on the MTJ element; forming a first capping layer along the shape of the MTJ element and the hard mask pattern; forming a first insulating layer on the first capping layer; removing a portion of the first capping layer and a portion of the first insulating layer to expose a portion of the hard mask pattern arranged on the MTJ element; forming an upper conductive layer on the exposed hard mask; forming a second insulating layer on the upper conductive layer; selectively removing the second insulating layer to form a trench exposing a portion of the upper conductive layer; and forming a contact plug in the trench to contact the upper conductive layer.