Patent ID: 8481375

Claim:
A method for producing a semiconductor device, comprising: forming a protruding region by etching a top surface of a base layer; forming a first insulation film having a flat surface on its entirety on a surface of the base layer having the protruding region therein; forming a separation layer in an interior of said base layer by ion implantation of a separation substance into the base layer; forming a light-blocking film on a surface of said first insulation film such that said light-blocking film overlaps with at least a portion of said protruding region; forming a second insulation film having a flat surface in its entirety over said base layer such that said light-blocking film is covered; affixing the base layer provided with said light-blocking film to a substrate, using the flat surface of said second insulation film; separating and removing along said separation layer a portion of the base layer affixed to said substrate via said second insulation film; and etching the base layer remaining over said substrate until the first insulation film is exposed except where the protruding region of the base layer is present so as to form a semiconductor layer that constitutes a semiconductor element from the base layer remaining over said substrate such that at least a portion of the semiconductor layer overlaps with said light-blocking film.