Patent ID: 8362533

Claim:
A semiconductor device comprising: a transistor including: a first main electrode, a second main electrode, and a control electrode; a first plug that is disposed on the first main electrode; a second plug that is disposed on the second main electrode; a third plug that is disposed on the control electrode; an interlayer insulating film that is disposed to cover the transistor, the first plug, the second plug and the third plug; a ferroelectric capacitor including: a first electrode that is disposed on the interlayer insulating film and is electrically connected to the first plug, a second electrode that is separated from the first electrode, and a ferroelectric film that is disposed between the first electrode and the second electrode; a barrier film that covers a surface of the ferroelectric capacitor and a surface of the interlayer insulating film and prevents a substance affecting a crystalline composition or a polarization characteristic of a ferroelectric from entering therethrough; a fourth plug that is disposed on the second plug and is electrically connected to the second plug through a first connection hole disposed in the barrier film; an eleventh plug that is disposed on the third plug below the barrier film; a fifth plug that is disposed on the eleventh plug and is electrically connected to the eleventh plug through a second connection hole disposed in the barrier film; and wherein a bottom face area of the eleventh plug is larger than a top face area of the third plug.