Patent ID: 7911023

Claim:
A semiconductor apparatus comprising: a semiconductor substrate that has a first surface and a second surface opposite to each other, and that has a plurality of element forming regions; an insulation trench that surrounds each of the plurality of element forming regions, and that insulates and separates the plurality of element forming regions from each other; and a plurality of elements that is respectively located in the plurality of element forming regions, wherein the plurality of elements includes at least two double-sided electrode elements, wherein each double-sided electrode element includes: a first electrode that is located on one of the first surface and the second surface of the semiconductor substrate; a second electrode that is located on the other of the first surface and the second surface of the semiconductor substrate, wherein the double-sided electrode element is configured so that a current flows between the first electrode and the second electrode; a PN column region that is located in the semiconductor substrate, and that includes a plurality of P conductivity type semiconductor parts and a plurality of N conductivity type semiconductor parts, wherein the plurality of P conductivity type semiconductor parts and the plurality of N conductivity type semiconductor parts are alternately and adjacently arranged in series with each other without an insulating film therebetween in a direction perpendicular to a thickness direction of the semiconductor substrate; and a drift region that is provided by one of: the plurality of P conductivity type semiconductor parts; and the plurality of N conductivity type semiconductor parts of the PN column region wherein the at least two double-sided electrode elements include at least one P channel type double-sided electrode element and at least one N channel type double-sided electrode element; the at least one P channel type double-sided electrode element utilizes the plurality of P conductivity type semiconductor parts as the drift region; and the at least one N channel type double-sided electrode element utilizes the plurality of N conductivity type semiconductor parts as the drift region.