Patent ID: 9356069
Filing Date: 2016-05-31
CPC Classification: H01L

Claim Text:
1. A method for forming a photo diode, comprising: forming a first pair of electrodes and a second pair of electrodes over a substrate by using a conductive layer; forming a dielectric layer over the substrate; patterning the dielectric layer over the substrate; forming a photo conversion layer over the substrate; and forming a color filter layer over the photo conversion layer, wherein at least a portion of the dielectric layer separates a first portion of the color filter layer corresponding to a first pixel from a second portion of the color filter layer corresponding to a second pixel, and a refractive index of the dielectric layer is lower than a refractive index of the color filter layer, wherein the first pair of electrodes corresponds to the first pixel and the second pair of electrodes corresponds to the second pixel, and wherein at least a portion of the dielectric layer separates a first portion of the photo conversion layer corresponding to the first pixel from a second portion of the photo conversion layer corresponding to the second pixel, and a refractive index of the dielectric layer is lower than a refractive index of the photo conversion layer.