Patent ID: 6623989
Filing Date: 2003-09-23
Classification: C07D,G11C,H01L

Abstract:
A method for fabricating a storage device, comprising:forming a semiconductor substrate; forming a plurality of first signal lines extending along a first direction; forming a plurality of second signal lines extending along a second direction to cross the first signal lines; and forming a storage cell coupled at a corresponding intersection of the first signal lines and the second signal lines, wherein forming the storage cell comprises, forming an insulating layer that divides the substrate into first, second and third regions; forming a first gate electrode over a first region of the substrate; forming a second gate electrode and a third gate electrode over second and third regions of the substrate on opposite sides of the first gate electrode, respectively, each with a gate insulating film disposed thereberween; forming first source/drain regions in the first region of the substrate on both sides of the first gate electrode; and forming second and third source/drain regions on both sides of the second and third gate electrodes in the second and third regions of the substrate, respectively.