Patent ID: 8970769
Filing Date: 2015-03-03
Classification: H01L

Abstract:
1. A solid-state imaging apparatus having a plurality of pixels, comprising: a substrate which has a first face and a second face opposite to the first face, and in which a plurality of photoelectric conversion portions respectively corresponding to the plurality of pixels are formed; an optical system which includes a plurality of microlenses provided on a side of the first face of the substrate in correspondence with the plurality of pixels; and a plurality of light absorbing portions which are provided on a side of the second face of the substrate in correspondence with the plurality of pixels and absorb light, wherein the plurality of pixels include pixels of a first type for detecting light of a first wavelength and pixels of a second type for detecting light of a second wavelength shorter than the first wavelength, and the solid-state imaging apparatus further comprises, for each of the pixels of the first type, a first portion between the substrate and the light absorbing portion corresponding to the pixel, and further comprises, for each of the pixels of the second type, a second portion between the substrate and the light absorbing portion corresponding to the pixel, and the first portion has a reflectance higher than that of the second portion for the light of the first wavelength.