Patent ID: 6465829
Filing Date: 2002-10-15
Classification: G11C

Abstract:
A semiconductor device comprising a semiconductor substrate and a plurality of basic units formed on said semiconductor substrate each having a memory element and a logic element and a same plan layout or a bilateral symmetry layout, said basic unit comprising:an isolation insulating region formed on a surface of said semiconductor substrate for defining first and second active regions; a transfer transistor having a first gate electrode formed traversing the first active region and a pair of first source/drain regions formed on both sides of the first gate electrode in the first active region; a word line connected to the first gate electrode; a bit line connected to one of the pair of first source/drain regions; serially connected transistors having second and third gate electrodes formed traversing the second active region, a connection node formed between the second and third gate electrodes in the second active region, a pair of second source/drain regions formed outside the second and third gate electrodes, and in the second active region, and a silicide electrode formed on the connection node and on the pair of second source/drain regions; a first signal line connected to the silicide electrode on one of the pair of second source/drain regions; a second signal line connected to the silicide electrode on the other of the pair of second source/drain regions; a third signal line connected to the second gate electrode; a storage electrode formed in an area above the other of the first source/drain regions and at least a portion of the third gate electrode; a capacitor dielectric film formed on a surface of said storage electrode; a first conductive connection member formed on and under said storage electrode for connecting said storage electrode to the other of the first source/drain regions; and a second conductive connection member formed on and under said storage electrode for connecting said storage electrode to the third gate electrode.