Patent ID: 8610186

Claim:
A solid-state imaging device comprising: an imaging area which includes pixels of three colors of R, G and B, each of pixels including: a first photodiode which performs photoelectric conversion for incident light; a first read transistor which is connected to the first photodiode and reads a signal charge obtained by the photoelectric conversion by the first photodiode; a second photodiode which has a photosensitivity lower than a photosensitivity of the first photodiode, and performs photoelectric conversion for the incident light; a second read transistor which is connected to the second photodiode, and reads a signal charge obtained by the photoelectric conversion by the second photodiode; a floating diffusion layer which is provided between the first photodiode and the second photodiode, is connected to the first and the second read transistors, and stores the signal charges; a reset transistor which is provided to contact the floating diffusion layer in a direction perpendicular to a direction in which the first and the second photodiodes are arranged and which resets a potential of the floating diffusion layer; and an amplifying transistor which is provided to contact the floating diffusion layer in a direction perpendicular to a direction in which the first and the second photodiodes are arranged and which amplifies the potential of the floating diffusion layer; and a plurality of color filters which include color filters for R, G and B, color filter for R and B and color filter for G having different spectrum transmission characteristics, wherein the relationship QSAT 1 > QSAT 2 is satisfied, where QSAT 1 represents a saturation level of the second photodiode corresponding to the color filter for G, and a QSAT 2 represents saturation level of the second photodiode corresponding to the color filter for R and B and, an area of the second photodiode corresponding to G is larger than an area of the second photodiode corresponding to R and B.