Patent ID: 8524523
Filing Date: 2013-09-03
Classification: G11C,H01L

Abstract:
1. A method of manufacturing a switching element for a memory device, comprising the steps of: forming line-type hard mask patterns spaced apart from each other at regular intervals on a base layer; etching the base layer exposed by the line-type hard mask patterns to form a plurality of line-type trenches; forming first diode portions on the bottoms of the trenches; embedding an insulation material in the trenches having the first diode portions therein; forming line-type mask patterns spaced apart from each other at regular intervals on the line-type hard mask patterns and the insulation material in a direction perpendicular to the line-type hard mask patterns; removing the insulation material exposed by the line-type mask patterns to form holes exposing surfaces of the first diode portions; removing the line-type mask patterns; and forming second diode portions in the holes.