Patent ID: 7268085

Claim:
A method for forming a storage node contact of a semiconductor device, the method comprising: depositing sequentially a conductive layer, a nitride layer and a polysilicon layer over a substrate, where at least one contact plug contacts the substrate; patterning the polysilicon layer, the nitride layer and the conductive layer to form at least first and second conductive patterns, the patterned conductive layer defining the first and second conductive patterns, the patterned polysilicon and nitride layers defining first and second dual hard mask patterns provided over the first and second patterned conductive patterns, respectively, wherein the first and second conductive patterns define a first hole therebetween, the first hole being provided directly over the contact plug; forming an insulation layer over the first and second dual-hard masks and into the first hole; and selectively etching the insulation layer to define a second hole and expose the contact plug.