Patent ID: 7511322

Claim:
A method of manufacturing an image sensor comprising: embedding a light-transmission layer in an active region of a semiconductor substrate, wherein using a trench recessed in the semiconductor substrate as a bottom for the light-transmission layer, wherein embedding the light-transmission layer comprises: forming a sacrificial layer pattern on a part of the semiconductor substrate; using the sacrificial layer pattern as a mask, etching the active region of the semiconductor substrate to form the trench; forming the light-transmission layer on the semiconductor substrate to cover the sacrificial layer pattern and the trench; and using the sacrificial layer pattern as a mask, selectively removing the light-transmission layer to leave the light-transmission layer only in the trench; ion-implanting impurities to form an impurity layer for a photo diode surrounding the light transmission layer except the top surface of the light-transmission layer to form the photo diode, wherein the photo diode has a trench shape by surrounding the light-transmission layer; and forming a signal process transistor to carry/discharge photocharges from the photo diode.