Patent ID: 9460896
Filing Date: 2016-10-04
CPC Classification: C23F,H01J,H01L

Claim Text:
1. A plasma processing method for performing a plasma process on a target substrate having an insulating film and a mask film of a titanium-containing material in a plasma processing space, the plasma processing method comprising: a first process of supplying a first fluorine-containing gas into the plasma processing space and etching the insulating film, with plasma of the first fluorine-containing gas and with the mask film of the titanium-containing material as a mask, so that a carbon-containing material generated from the insulating film and a titanium-containing material generated from the mask film are deposited on a member in the plasma processing space; a second process of supplying an O a third process of supplying a nitrogen-containing gas and a second fluorine-containing gas into the plasma processing space and removing, with plasma of the nitrogen-containing gas and the second fluorine-containing gas, the exposed titanium-containing material deposited on the member, after the second process.