Patent ID: 9564462
Date: 2017-02-07
CPC Classifications: H01L

Claim:
1. An image-sensor structure, comprising: a substrate; a plurality of photoelectric conversion units formed in the substrate; and a plurality of single layer color filter patterns comprising a red filter pattern having a first refractive index, a green filter pattern having a second refractive index and a blue filter pattern having a third refractive index formed above the substrate and the photoelectric conversion units, wherein at least one of the color filter patterns contains a single component having a specific refractive index such that the second refractive index of the green filter pattern is higher than the first refractive index of the red filter pattern and the third refractive index of the blue filter pattern, wherein each of the color filter patterns comprise a mixture of at least one kind of pigment and at least one compound, and wherein the amount of the single component in each of the color filter patterns is based on the weight of the mixture in the red filter pattern, the green filter pattern or the blue filter pattern.