Patent ID: 8021912

Claim:
A method of manufacturing an image sensor, the method comprising: forming a photoelectric conversion unit within a semiconductor substrate, wherein the semiconductor substrate includes an active pixel region and an optical black region; forming an annealing layer on the active pixel region and the optical black region; etching the annealing layer so that the annealing layer covers at least a portion of the optical black region; forming a wiring pattern on the annealing layer; forming a light-blocking pattern on the wiring pattern so as to cover the optical black region including an entirety of the photoelectric conversion unit therein, thereby blocking light from being incident upon the optical black region; performing a first annealing process on an upper portion of the semiconductor substrate to remove dangling bonds from the active pixel region; and performing a second annealing process on a lower portion of the semiconductor substrate to remove dangling bonds from the optical black region.