Patent ID: 7411173

Claim:
An image sensor comprising: a photodiode disposed in a semiconductor substrate; a first device isolating layer formed having an impurity with a conductivity type in the semiconductor substrate adjacent to the photodiode; a second device isolating layer comprising an insulating layer that covers the first device isolating layer, wherein the photodiode comprises an impurity with a first conductivity type, and the impurity of the conductivity type of the first device isolating layer is an impurity with a second conductivity type opposite to the first conductivity type; an interlayer insulating layer formed on the second device isolating layer, and comprising a material with refractivity greater than that of the second device isolating layer; a first hole accumulation region comprising an impurity of the second conductivity type on a surface of the first device isolating layer contacting the second device isolating layer; and a second hole accumulation region comprising an impurity of the second conductivity type in the semiconductor substrate on the photodiode.