Patent ID: 9497366
Filing Date: 2016-11-15
CPC Classification: H01L,H04N

Claim Text:
1. An image sensor having an array of image pixels, comprising: a substrate; an array of microlenses formed over the substrate; an array of color filter elements interposed between the microlenses and the substrate; a plurality of dielectric walls, wherein each of the dielectric walls is interposed between a respective pair of the color filter elements, wherein each of the dielectric walls is entirely dielectric, and wherein each of the dielectric walls has first and second opposing sides; and a plurality of metal light shields, wherein each of the metal light shields is at least partially interposed between a respective one of the dielectric walls and a respective one of the color filter elements, wherein each of the dielectric walls has a first metal light shield formed on the first side of the dielectric wall and a second metal light shield formed on the second side of the dielectric wall.