Patent ID: 8361836

Claim:
A method for manufacturing a photoelectric conversion element, comprising the steps of: forming a p-type impurity diffusion layer by diffusing boron into a silicon substrate; forming an oxidation control mask on a surface of said p-type impurity diffusion layer in an area corresponding to an area where an electrode for p-type is to be formed; forming a thermal silicon oxide film on the surface of said p-type impurity diffusion layer; exposing part of the surface of said p-type impurity diffusion layer by removing said oxidation control mask formed on the surface of said p-type impurity diffusion layer in the area corresponding to the area where the electrode for p-type is to be formed; forming the electrode for p-type on the part of the surface of said p-type impurity diffusion layer exposed by the removal of said oxidation control mask; and removing a portion of a boron glass layer formed on the surface of said p-type impurity diffusion layer, the portion being in an area other than the area where the electrode for p-type is to be formed.