Patent ID: 7736941

Claim:
A method of manufacturing a light or radiation detector having a polycrystalline semiconductor film for generating electric charges upon incidence of light or radiation, and a supporting substrate for supporting the polycrystalline semiconductor film to be laminated thereon, crystal grains of the semiconductor film being formed continuously and without crystal grain boundaries present in a direction of thickness, wherein at a time of forming the semiconductor film, the semiconductor film is formed in a predetermined thickness on a dummy substrate by vapor deposition, subsequently the dummy substrate is replaced with the supporting substrate, and the semiconductor film continues to be formed on the supporting substrate by vapor deposition, the semiconductor film being formed by a proximity sublimation method which places, close to each other, a deposition source and the supporting substrate or a dummy substrate to deposit sublimate of the deposition source on a surface of the substrate, thereby forming the semiconductor film that should be on the supporting substrates or the semiconductor film that should be formed on the dummy substrate.