Patent ID: 7968958

Claim:
A semiconductor device comprising: a sensor element having a plate shape with a surface and including a sensor structure disposed in a surface portion of the sensor element; and a plate-shaped cap element bonded to the surface of the sensor element, wherein: the cap element has a wiring pattern portion facing the sensor element; the wiring pattern portion connects an outer periphery, including a peripheral portion surrounding the sensor structure, of the surface of the sensor element and the sensor structure so that the sensor structure is electrically coupled with an external element via the outer periphery; the wiring pattern portion includes: a first wiring layer for connecting the outer periphery of the surface of the sensor element and the sensor structure, a first insulation film disposed on the first wiring layer, and having a first opening, which faces the sensor structure and the outer periphery of the surface of the sensor element so that the first wiring layer is exposed from the first insulation film in the first opening, and a second wiring layer including a wiring part, which is disposed on the first wiring layer exposed from the first insulation film in the first opening, and further including a hermetically sealing part, which has a ring shape and faces the peripheral portion of the outer periphery, wherein the wiring part is coupled with the sensor structure, and is further coupled with the outer periphery of the surface of the sensor element; the hermetically sealing part is disposed on the first insulation film so that the hermetically sealing part is electrically insulated from the first wiring layer; the hermetically sealing part is bonded to the peripheral portion so that the sensor structure is sealed and accommodated in a space defined by the cap element and the sensor element; the cap element has a silicon substrate, a second insulation film on the silicon substrate and a first conduction contact portion; the second insulation film has a second opening for exposing the silicon substrate via the second opening; the first conduction contact portion is disposed in the second opening, and electrically connects the silicon substrate and the first wiring layer; the wiring pattern portion further includes a second conduction contact portion, which is disposed in the first opening; the second conduction contact portion electrically connects the first wiring layer and the hermetically sealing part; and the silicon substrate electrically connects the peripheral portion of the sensor element via the first conduction contact portion, the first wiring layer, the second conduction contact portion and the hermetically sealing part.