Patent ID: 8558134

Claim:
A plasma processing apparatus comprising: a processing chamber; a mounting table positioned in the processing chamber for mounting thereon a substrate to be processed; a local plasma generator positioned in the processing chamber, said local plasma generator including a local plasma generating chamber configured to generate a plasma therein, and an outlet which faces the mounting table such that plasma generated within the local plasma generator exits the outlet toward the mounting table to locally react on the substrate to be processed; a moving unit for moving the local plasma generator, wherein the local plasma generator includes an offset gas discharge mechanism positioned outside of the local plasma generating chamber and around a perimeter of the outlet, wherein the offset gas discharge mechanism is configured to discharge an offset gas along a perimeter of the outlet of the local plasma generator to localize reaction of the plasma discharged from the outlet of the local plasma generator; wherein a processing gas which forms the plasma is an etching gas, and the offset gas is a deposition gas; and wherein the deposition gas is a CHF-based deposition gas when the etching gas is a F-based etching gas, the deposition gas is a CF-based or a HBr-based deposition gas when the etching gas is a Cl-based etching gas, and the deposition gas is a CF-based deposition gas when the etching gas is a 02-based etching gas.