| 摘要 |
A method for manufacturing a CMOS image sensor increases the performance of the CMOS image sensor by reducing a peeling phenomenon near a wafer edge and a preventing a circle defect in a pixel region. The method reduces defects in the external appearance of the pad. In order to accomplish the object, there is provided a method for manufacturing a CMOS image sensor, the method including depositing an oxide layer and a nitride layer after forming a pad on a substrate. The pad is exposed and cleaned by etching the oxide layer and the nitride layer. A portion of the oxide layer and the nitride layer over the edge region of the substrate may be etched and removed. A first ashing process, a solvent cleaning process, and a second ashing process may be performed. A pad protection layer is deposited. A hydrogen anneal process is performed. A micro-lens process, a planarization process, and a color filter array process are performed. The pad protection layer over a pad area is removed.
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