Patent ID: 8981512
Filing Date: 2015-03-17
Classification: H01L

Abstract:
1. A pixel array comprising: a plurality of photodiodes disposed in a semiconductor layer and arranged in the pixel array; a color filter layer disposed proximate to the semiconductor layer, wherein light is to be directed to at least a first one of the plurality of photodiodes through the color filter layer, wherein the light is to be directed to said at least the first one of the plurality of photodiodes through a backside of the pixel array; an optical shield layer disposed proximate to the color filter layer, wherein the color filter layer is disposed between the optical shield layer and the semiconductor layer, wherein the optical shield layer shields at least a second one of the plurality of photodiodes from the light; and a planarization layer disposed over the color filter layer such that at least a portion of the planarization layer is disposed between the optical shield layer and the color filter layer.