Patent ID: 8629033

Claim:
A method for manufacturing a semiconductor device comprising: forming a sacrificial insulation film defining a storage node region over a semiconductor substrate having a storage node contact plug; defining a storage node region within the sacrificial insulation film, the storage node region being provided over the storage node contact plug and having a sidewall extending from an upper surface to a lower surface of the sacrificial insulation film; forming a first conductive material for forming a lower electrode over the sacrificial insulation film and a sidewall of the storage node region; etching a part of the first conductive material formed over an upper part of the sacrificial insulation film and the upper part of the sacrificial insulation film to form a hole in the sacrificial insulation film without etching away the first conductive material provided over the sidewall of the storage node region; removing the sacrificial insulation film remaining below the hole so that the semiconductor substrate is substantially free of the sacrificial insulation film; forming a dielectric film conformally over the first conductive material; forming a second conductive material over the dielectric film; forming a capping film pattern over the first conductive material, the dielectric film, and the second conductive material, the capping film pattern having an opening to expose the second conductive material of the storage node region; and forming a third conductive material over the second conductive material and the capping film pattern, the third conductive material being coupled to the second conductive material via the opening of the capping film pattern.