Patent ID: 6312969
Filing Date: 2001-11-06
Classification: H01L

Abstract:
A method for manufacturing a solid-state imaging sensor utilizing an intermediate piece comprised of line-shaped transfer electrodes arrayed at spaced intervals on a substrate, and discrete sensors formed between the lines of said transfer electrodes on said substrate for performing photoelectric conversion wherein,a process to form an light-impervious film with an aperture directly above each of said sensors on said substrate and also covering said transfer electrodes and block the input of light into other than said sensors, and also form a lower overhang projecting from a side towards the center of said sensor, at the bottom of said side surface having an aperture directly above said sensor of the first light-impervious film and,a process to form an insulator film to cover said first light-impervious film on said substrate and,a process to not only form a material film from material having light-blocking characteristics with respect to said light on said insulator film but also cover to the inner surface of said contact hole with said material film and,a process to form a second light-impervious film in which an edge piece is formed from said material film by an aperture directly above said sensor, and etching performed of the edge piece to obtain a position at the center of the sensor rather than the side surface forming the contact hole inner surface.