| 摘要 |
<P>PROBLEM TO BE SOLVED: To improve color reproducibility. <P>SOLUTION: A solid state image pickup device 100 according one embodiment of the present invention comprises an optical waveguide 8R formed in an interlayer dielectric film 17 above a first photodiode 2 and having a refraction index higher than that of the interlayer dielectric film 17; optical waveguides 8G and 8B formed in the interlayer dielectric film 17 above a second photodiode 2 and having a refraction index higher than that of the interlayer dielectric film 17; a color filter 12R formed above the optical waveguide 8R and transmitting mainly lights with a first wavelength; color filters 12G and 12B formed above the optical waveguides 8G and 8B and transmitting mainly lights with a second wavelength; and a micro-lens 16 formed above the color filters 12R, 12G and 12B. The first wavelength is longer than the second wavelength, and an opening diameter of the optical waveguide 8R is smaller than opening diameters 13G and 13B of the optical waveguides 8G and 8B. <P>COPYRIGHT: (C)2012,JPO&INPIT |
