Patent ID: 7578676

Claim:
A semiconductor device comprising: a first plate member made from a high-resistance material, and having a first plate circuit surface on which a first circuit is provided; a second plate member made from a high-resistance material, and having a second plate circuit surface on which a second circuit is provided; a plurality of first flat plates configured as communication antennas, the plurality of first flat plates being disposed on the first plate circuit surface of the first plate member; a first communicating section configured to perform communication via the plurality of first flat plates, the first communicating section being disposed on the first plate circuit surface of the first plate member; a plurality of second flat plates configured as communication antennas, the plurality of second flat plates being disposed on the second plate circuit surface of the second plate member; and a second communicating section configured to perform communication via the plurality of second flat plates, the second communicating section being disposed on the second plate circuit surface of the second plate member, wherein the first plate member and the second plate member are arranged so that a surface of the first plate member opposite to the first plate circuit surface faces a surface of the second plate member opposite to the second plate circuit surface.