Patent ID: 7378295

Claim:
A method of fabricating a CMOS image sensor, comprising the steps of: forming a photodiode in a semiconductor substrate; forming a first insulating layer on the semiconductor substrate; forming a metal line on the first insulating layer for electrically connecting to the photodiode; forming a second insulating layer on an entire surface of the first insulating layer including the metal line; forming a passivation layer pattern and a microlens material layer pattern on the second insulating layer such that the microlens material layer pattern is embedded between the passivation layer pattern; forming a photoresist pattern on the passivation layer pattern and the microlens material layer pattern; forming an opening by selectively performing an etching using the photoresist pattern as a mask until an upper surface of a metal pad is exposed and removing the photoresist pattern; and forming a microlens by performing reflowing on the microlens material layer pattern.