Semiconductor memory and method for driving the same

摘要

A semiconductor memory includes a storing transistor for storing a data composed of any of an MFS transistor, an MFIS transistor and an MFMIS transistor, and a selecting transistor for selecting the storing transistor. A first well region of a first field effect transistor included in the storing transistor is isolated from a second well region of a second field effect transistor included in the selecting transistor. The semiconductor memory further includes a first voltage supply line for supplying a DC voltage to the first well region of the first field effect transistor, and a second voltage supply line independent of the first voltage supply line for supplying a DC voltage to the second well region of the second field effect transistor.