Patent ID: 7317218

Claim:
A solid-state imaging device comprising: a gate electrode formed on a semiconductor substrate having a semiconductor region of a first conductive type; a first read-out control region of the first conductive type formed below said gate electrode in said semiconductor substrate; a signal accumulation region of a second conductive type formed in said semiconductor substrate so that a portion of said signal accumulation region is positioned below said gate electrode; a drain region of the second conductive type formed in said semiconductor substrate so that said drain region is positioned opposite said signal accumulation region across said gate electrode; and a punch-through stopper region of the first conductive type having a higher impurity concentration than said semiconductor region and formed under said drain region in said semiconductor substrate, wherein an end of said punch-through stopper region on the side of said signal accumulation region is positioned closer to said signal accumulation region than is an end of said drain region on the side of said signal accumulation region, and said first read-out control region occupies all of a surface of said semiconductor substrate that is under said gate electrode.