Patent ID: 8110860

Claim:
An imaging device, comprising a plurality of pixels each including a photodiode, wherein said pixels receive either light incident via a first filter which selectively transmits relatively short-wavelength light or light incident via a second filter which selectively transmits relatively long-wavelength light, each pixel receiving said relatively short-wavelength light includes: a first diffusion region of a first conductive type which constitutes a storing part of optical carriers in said photodiode; a transfer transistor which uses said first diffusion region as a source electrode, whose gate electrode is formed in a position adjacent to said first diffusion region via an insulating film, and which transfers the optical carriers stored in said photodiode to a drain electrode; and a second diffusion region of a second conductive type which is formed at a surface of said first diffusion region to cover a peripheral part of said first diffusion region and has a polarity opposite to that of the first conductive type, and each pixel receiving said relatively long-wavelength light comprises: a first diffusion region of the first conductive type which constitutes a storing part of optical carriers in said photodiode; a transfer transistor which uses said first diffusion region as a source electrode, whose gate electrode is formed in a position adjacent to said first diffusion region via an insulating film, and which transfers the optical carriers stored in said photodiode to a drain electrode; and a second diffusion region of the second conductive type which is formed to cover an entire surface of said first diffusion region and has a polarity opposite to that of the first conductive type.