Patent ID: 7859091

Claim:
A semiconductor device comprising: a first substrate made of semiconductor and having a plurality of first regions, wherein the first regions are insulated from each other and disposed in a surface portion of the first substrate, and wherein each first region is a semiconductor region; and a second substrate having electric conductivity and having a plurality of second regions and a plurality of insulation trenches, wherein each insulation trench penetrates the second substrate so that the second regions are insulated from each other, and wherein each second region is a conductive region, wherein the second substrate is made of single crystal silicon, and each second region is made of single crystal silicon, the first substrate provides a base substrate, and the second substrate provides a cap substrate, the second substrate is bonded to the first substrate so that a sealed space is provided between a predetermined surface region of the first substrate and the second substrate, at least one of the plurality of second regions includes an IC circuit, the second regions include an extraction conductive region, which is coupled with a corresponding first region, the extraction conductive region is exposed on a side of the second substrate, which is opposite to the first substrate.