Patent ID: 7479627

Claim:
A semiconductor device, comprising: a semiconductor substrate having a main surface where a light receiving element area is formed; a projection part provided in the periphery of the light receiving element area on the main surface of the semiconductor substrate; an adhesive material layer provided in the external periphery of the projection part on the main surface of the semiconductor substrate; a transparent plate supported by the projection part and fixed above the light receiving element area by the adhesive material layer, wherein the projection part comes in contact with a lower surface of the transparent plate; the projection part and the transparent plate are made of materials different from each other; wherein the projection part is formed by a first projection part and a second projection part; and the adhesive layer is provided between the first projection part and the second projection part; wherein the semiconductor substrate is fixed to a supporting substrate; a piercing electrode electrically connecting the semiconductor substrate and the supporting substrate is formed so as to pierce inside of the semiconductor substrate; and the piercing electrode is provided in the semiconductor substrate between the first projection part and the second projection part.