Patent ID: 8598011
Filing Date: 2013-12-03
Classification: H01L

Abstract:
1. A method for fabricating a resistive memory device, the method comprising: forming a lower electrode in an insulation layer; etching the insulation layer so that an upper portion of the lower electrode protrudes above a surface of the insulation layer; etching edge parts of the upper portion of the lower electrode to curve the edge parts; and etching a portion of the insulation layer near the upper portion of the lower electrode to curvedly slope the portion of the insulation layer, wherein the curvedly-sloped portion of the insulation layer remains on sidewalls of the upper portion of the lower electrode; forming a resistive layer along a profile of the insulation layer and the lower electrode; forming an upper electrode conductive layer over the resistive layer; and etching the upper electrode conductive layer to form an upper electrode.