A semiconductor device comprises a semiconductor substrate that is provided with an integrated circuit; a multi-layered member that is installed in the semiconductor substrate, including a plurality of conductive members and an insulation member; and an external terminal formed on a part of the surface of the multi-layered member. A pair of the conductive members contacts with the upper surface and the lower surface of the insulation member directly under the external terminal, includes a portion where the conductive members are overlapped each other, and are electrically coupled to each other.