Patent ID: 7345703
Filing Date: 2008-03-18
Classification: H01L

Abstract:
1. A method for fabricating an image sensor, the method comprising: forming a plurality of gate electrodes on a substrate including an epi-layer defining a blue color region, a green color region and a red color region; forming a first ion implantation blocking layer covering the blue color region; forming a second ion implantation blocking layer covering the blue color region and the green color region; forming a third ion implantation blocking layer covering the blue color region, the green color region and the red color region; forming a mask on the third ion implantation blocking layer, the mask exposing upper portions of the epi layer in which a plurality of photodiodes are to be formed; forming the photodiodes, each having different depths for each color region by applying an ion implantation process to the epi layer; and forming color filters corresponding to each color region.