Patent ID: 7459328

Claim:
A method of manufacturing an image sensor, comprising: partially etching a portion of a substrate corresponding to a field region to form a device isolation trench in the substrate; implanting a second conductive type impurity into side and bottom surfaces of the device isolation trench to form a dark current suppressor; filling the device isolation trench with an insulation layer to form a device isolation layer for defining an active region and a field region; partially implanting the second conductive type impurity into a surface of the substrate corresponding to the active region to form a second region of a photodiode; and implanting a first conductive type impurity into the second region of the photodiode adjacent to the dark current suppressor to form a first region of the photodiode, wherein the dark current suppressor is electrically isolated from the second region of the photodiode and the second region is disposed under the first region.