Patent ID: 7850864
Filing Date: 2010-12-14
Classification: C23C,H01J,H01L

Abstract:
1. A method for treating a surface of a body to be treated, in a process chamber, with a plasma of an etching gas, the method comprising: forming a composite layer including a porous layer made from a metal oxide and a secondary recrystallized layer of the metal oxide formed on the porous layer; covering with the composite layer at least one of a surface site of the process chamber itself which is exposed to the plasma atmosphere, a surface of a member accommodated in the process chamber which is exposed to the plasma atmosphere, and a surface of a part accommodated in the process chamber which is exposed to the plasma atmosphere; and introducing a first gas including a fluorine-containing gas into the process chamber and exciting the gas to generate a first plasma for treating the body to be treated.