Patent ID: 7875947

Claim:
An image sensor comprising: a semiconductor substrate; a plurality of dopant regions, configured to sense light, formed in the semiconductor substrate; a plurality of color filters arranged corresponding to the dopant regions and formed by alternately stacking a first inorganic film and a second inorganic film, wherein the first inorganic film and the second inorganic film are formed of a material selected from the group consisting of SiO 2 , SiON, SiN, and Si, respectively, and wherein the first inorganic film and the second inorganic film are formed of materials having a refractive index difference of about 0.8 or more; a plurality of micro lenses arranged on the semiconductor substrate corresponding to each of the plurality of color filters; and an insulating film interposed between the semiconductor substrate and the plurality of micro lenses, wherein the plurality of color filters comprise red, green, and blue color filters, and wherein at least one of the first inorganic films of the red, green, and blue color filters is formed of an inorganic material different from the others of the red, green, and blue color filters, and at least one of the second inorganic films of the red, green, and blue color filters is formed of an inorganic material different from the others of the red, green, and blue color filters.