Patent ID: 7920408

Claim:
A resistance change nonvolatile memory device comprising memory cells each having a variable resistance element whose resistance value reversibly changes according to an electrical signal, the memory device comprising: a substrate; and a memory cell array formed on the substrate, the memory cell array including the plurality of memory cells arranged in an array, wherein: in the memory cell array, the memory cells are formed at intersections of bit lines formed in a plurality of layers to extend in X direction and word lines formed in layers between the bit lines to extend in Y direction perpendicular to the X direction so as to be sandwiched between the bit lines and the word lines, a plurality of basic array planes sharing the word lines, each formed for each group of bit lines aligned in Z direction, perpendicular to the X and Y directions, in which layers are stacked, are arranged side by side in the Y direction, in each of the basic array planes, bit lines in even layers are connected in common, and bit lines in odd layers are connected in common, and the resistance change nonvolatile memory device further comprises: global bit lines; and first and second selection switch elements provided for each basic array plane, the first selection switch element controls switching of electrical connection/non-connection between the global bit line for the relevant basic array plane and common-connected even layer bit lines in the relevant basic array plane according to an even layer selection signal, and the second selection switch element controls switching of electrical connection/non-connection between the global bit line for the relevant basic array plane and common-connected odd layer bit lines in the relevant basic array plane according to an odd layer selection signal.