Patent ID: 6504193
Filing Date: 2003-01-07
Classification: H01L

Abstract:
A solid-state image device comprising:a semiconductor layer of a first conductivity type; a charge accumulation layer of a second conductivity type formed in said semiconductor layer, the charge accumulation layer performing photoelectric conversion and accumulating charge; a gate electrode formed on an insulator film on the semiconductor layer, the gate electrode being positioned above part of the charge accumulation layer; a drain region of the second conductivity type formed in the surface of the semiconductor layer corresponding to one side of the gate electrode, to which charge read out from the charge accumulation layer is transferred; a punch-through stopper region of the first conductivity type formed between the drain region and the charge accumulation layer and corresponding to only one side of the gate electrode; and a shield layer of the first conductivity type formed in the surface of the semiconductor layer corresponding to another side of the gate electrode, the shield layer contacting a surface of the charge accumulation layer.