Patent ID: 7528001

Claim:
A method for manufacturing a complementary metal oxide silicon (CMOS) image sensor comprising: depositing an oxide layer and a nitride layer after forming a pad over a substrate; exposing the pad by etching the oxide layer and the nitride layer; depositing a plasma enhanced-tetra ethyl ortho silicate (PE-TEOS) layer as a pad protection layer, and depositing a thermo-setting resin layer over the PE-TEOS layer; forming a color filter array; forming a planarization layer over the color filter array; removing the thermo-setting resin layer in a pad area; forming a micro-lens over the planarization layer; and exposing the pad by removing the plasma enhanced-tetra ethyl ortho silicate (PE-TEOS) layer in the pad area; wherein thickness of the thermo-setting resin layer is in the range of about 200 Å to about 600 Å.