Patent ID: 7459370

Claim:
A method of fabricating a semiconductor memory device, the method comprising: forming a mold insulating film over first and second portions of a semiconductor substrate, the mold insulating film comprising a plurality of storage node electrode holes spaced apart over the first portion of the semiconductor substrate; forming a plurality of storage node electrodes on inner surfaces of the storage node electrode holes, respectively; forming a capping film which covers the storage node electrodes and a first portion of the mold insulating film located over the first portion of the semiconductor substrate, and which exposes a second portion of the mold insulating film located over the second portion of the semiconductor substrate; selectively removing, including wet etching, the mold insulating film to expose a sidewall of at least one storage node electrode among the storage node electrodes covered by the capping film; and after removing the mold insulating film, removing the capping film to expose upper portions of the storage node electrodes.