Patent ID: 8035115

Claim:
A semiconductor apparatus comprising: a substrate; a plurality of semiconductor thin films, vertically, stacked on each other, formed on said substrate, each of said semiconductor thin films having a pn-junction so that all of said pn-junctions are connected serially, said plurality of the semiconductor thin films including a thin film that is the farthest from said substrate, wherein each said semiconductor thin film is formed on a passivation film positioned between the substrate and the semiconductor thin film, and a bottom surface of each said semiconductor thin film located on an upper side of the passivation film is isolated from a top surface of an adjacent said semiconductor thin film located directly below the passivation film by the passivation film, a plurality of first electrodes, each said first electrode connected to an inside of one of the plurality of semiconductor thin films; an insulating layer disposed on a side of each of the plurality of semiconductor thin films; and a second electrode disposed on the top surface, which is away from the substrate, of the thin film that is farthest from the substrate and disposed on the side of each of the plurality of semiconductor thin films, the insulating layer separating the second electrode from the side of each of the plurality of semiconductor films, the second electrode feeding carriers into the inside of the thin film that is farthest from the substrate and serially through the remaining plurality of semiconductor thin films.