Patent ID: 8921966

Claim:
An image sensor comprising: a plurality of photoelectric conversion pixels each of which includes a photoelectric conversion element, multiple wiring layers positioned above the photoelectric conversion element, interlayer insulation films formed among the multiple wiring layers, and a light guide formed of a first material in the interlayer insulation films; and a plurality of light-shielded pixels each of which includes a photoelectric conversion element, multiple wiring layers positioned above the photoelectric conversion element, interlayer insulation films formed among the multiple wiring layers, a light guide formed of a second material in the interlayer insulation films, and a light-shielding layer which is formed of a wiring layer among the multiple wiring layers, formed above the light guide, that shields the photoelectric conversion element and the light guide, wherein a dielectric constant of the first material is set to a value different from that of the second material so as to reduce a difference between parasitic capacitances of the light-shielded pixels and the photoelectric conversion pixels.