Patent ID: 8279654

Claim:
A resistance change memory device comprising: memory cells, each of which has a current path in which a storage element, whose resistance changes according to a voltage applied, and an access transistor are connected in series; first wirings connected to first ends of the current paths; second wirings connected to second ends of the current paths; a well which is a semiconductor region in which the access transistors are formed; and a drive circuit adapted to supply a current in a first direction to one or more of the storage elements via the access transistor by applying a voltage between the first and second wirings during a first operation, the drive circuit also adapted to supply a current to the one or more storage elements in a second direction opposite the first direction by applying a voltage of opposite polarity between the first or second wiring and well during a second operation, wherein, the first operation one of a data write and a data erase operation, and the second operation is the other of the data write and a data erase operation.