Patent ID: 7981718

Claim:
A method of manufacturing a solid-state image pickup element, said method comprising the steps of: forming a plurality of photoelectric conversion elements having at least a portion thereof formed within a semiconductor substrate; forming a wiring layer and an insulating film at a surface of said semiconductor substrate in which surface said plurality of photoelectric conversion elements are formed; laminating a supporting substrate to a surface at which said wiring layer is formed via an adhesive; applying a mechanical pressure to said semiconductor substrate and said supporting substrate in a state of said semiconductor substrate and said supporting substrate being laminated to each other via said adhesive, wherein the applied mechanical pressure is a force of between 1000 and 7000N and the temperature is maintained to be less than a curing temperature of the adhesive that is applied between the semiconductor substrate and said supporting substrate while applying the mechanical pressure; and removing the mechanical pressure and thereafter curing said adhesive by heating said adhesive to a temperature that is equal to or greater than a curing temperature of said adhesive after releasing the applied mechanical pressure.