Semiconductor memory devices and methods for manufacturing the same using sidewall spacers

摘要

Storage nodes for semiconductor memory devices may be fabricated by repeatedly forming conductive and insulating spacers on mold oxide layer pattern sidewalls, to thereby obtain fine line patterns which can increase the surface area of the storage node electrodes. Supporters also may be provided that are configured to support at least one freestanding storage node electrode, to thereby reduce or prevent the storage node electrode from falling or bending towards an adjacent storage node electrode.