Patent ID: 7915069

Claim:
A method of manufacturing a solid-state imaging device comprising: providing an n/p semiconductor substrate having a structure that an n type semiconductor layer is formed on a p type semiconductor substrate; forming a plurality of photo diodes on a surface layer of an imaging area of the n type semiconductor layer; forming a plurality of p type semiconductor regions surrounding each of the plurality of photo diodes in the n type semiconductor layer; forming a p type diffusion layer at a depth of the n type semiconductor layer separating the n type semiconductor layer into an upper layer and a lower layer, the p type diffusion layer connecting the bottoms of the plurality of p type semiconductor regions; implanting an n type ion in the lower layer of the n type semiconductor layer; and forming an n type peripheral semiconductor layer in the substrate of a peripheral region of the imaging area by implanting an n type ion from a surface of the substrate of the peripheral region of the imaging area, the n type peripheral semiconductor layer extending over the depth at which the p type diffusion layer is formed and up to a depth at which the lower layer of the n type semiconductor layer is formed and being directly connected to the lower layer of the n type semiconductor layer.