Patent ID: 6929972

Claim:
A manufacture method for a solid state imager, comprising steps of: (a) forming a well of a second conductivity type in a semiconductor substrate of a first conductivity type opposite to the second conductivity type; (b) forming a plurality of vertical CCD channels of the first conductivity type in said second conductivity type well; (c) forming a plurality of vertical transfer electrodes covering said plurality of vertical CCD channels to form vertical CCDs along with said plurality of vertical CCD channels; (d) selectively implanting impurities of the first conductivity type into said second conductivity type well to form a first impurity diffusion layer and a first photodiode, the impurities being implanted along a first direction crossing a normal direction of said semiconductor substrate; and (e) selectively implanting impurities of the first conductivity type into said second conductivity type well to form a second impurity diffusion layer and a second photodiode, the impurities being implanted along a second direction crossing the normal direction of said semiconductor substrate.