Patent ID: 9054005
Filing Date: 2015-06-09
Classification: H01L

Abstract:
1. A semiconductor device comprising: a first semiconductor substrate having a first wiring layer in which wirings are disposed in a plurality of layers; and a second semiconductor substrate having a second wiring layer in which wirings are disposed in a plurality of layers, wherein in a state in which a first connection surface of the first semiconductor substrate and a second connection surface of the second semiconductor substrate face each other, the first semiconductor substrate and the second semiconductor substrate are electrically connected to each other, a first concave portion is formed in the first connection surface, the first concave portion having a first side surface and a first bottom surface, a first electrode is formed in the first semiconductor substrate, the first electrode being electrically connected to the first wiring layer, the first electrode being exposed at the first bottom surface, and the first concave portion is filled with a filler so as to cover the first side surface and the first bottom surface, the filler being insulating material.