Patent ID: 6254721
Filing Date: 2001-07-03
Classification: C23F,H01J,H01L

Abstract:
Apparatus for processing a sample having a laminate of at least two layers respectively of different metals of different ionization tendencies, and having a resist mask on said laminate, comprising:i) structure for effecting first and second plasma treatments, the first plasma treatment being a plasma etching of the sample, the second plasma treatment being a plasma treatment of the plasma etched sample to remove residual corrosive compounds formed in the plasma etching and to remove the resist mask, the structure for effecting first and second plasma treatments respectively including a first gas supply structure for supplying a first plasma-forming gas, and a second gas supply structure for supplying a second plasma-forming gas different from the first plasma-forming gas; andii) liquid contact structure to contact the plasma etched and plasma treated sample with at least one liquid in a wet-processing chamber into which an inert gas is to be introduced, wherein said inert gas is nitrogen.