Patent ID: 8562750

Claim:
A method for processing a substrate, comprising: placing a substrate in a bevel processing chamber; providing a passivation plasma confined in a peripheral region of the bevel processing chamber; forming, using the passivation plasma, a passivation layer on the substrate only around a bevel region of the substrate; stopping the passivation plasma; providing a patterning plasma formed in an outer peripheral region of the processing chamber, by increasing plasma confinement such that the patterning plasma is formed in the outer peripheral region farther from a center of the substrate; patterning the passivation layer using the patterning plasma, by removing the passivation layer on an outer edge portion of the bevel region, while maintaining the passivation layer on an inner portion of the bevel region; stopping the patterning plasma; cleaning the bevel edge of the substrate using the patterned passivation layer as a protective mask; and removing the remaining passivation layer.