Patent ID: 7435615
Filing Date: 2008-10-14
Classification: H01L

Abstract:
1. A method for fabricating CMOS image sensor, comprising: forming a device protection layer on a semiconductor substrate including at least one photo-sensing device and at least one metal pad disposed in a logic circuit area corresponding to the at least one photo-sensing device, the device protection layer covering the at least one metal pad; forming each of a first planarization layer, a color filter layer, and a second planarization layer in sequence on the device protection layer in correspondence with the at least one photo-sensing device; forming on the second planarization layer a material layer for micro-lens formation while the device protection layer covers the at least one metal pad; exposing a predetermined portion of the metal pad by selectively etching the device protection layer, after forming the material layer; and forming a micro-lens for directing incident light onto the at least one photo-sensing device by reflowing, after said exposing the material layer for micro-lens formation.