Patent ID: 6171438
Filing Date: 2001-01-09
Classification: H01J,H01L

Abstract:
A plasma etching apparatus comprising a vacuum processing chamber, a plasma generation device, a processing gas supply for supplying processing gas to said processing chamber, an electrode for holding a sample to be processed in said vacuum processing chamber, and an evacuation system for reducing the pressure of said vacuum processing chamber, wherein:said processing gas includes at least one kind of gas having a composition for forming a polymerized film by plasma discharge;said processing gas is made plasmatic by plasma discharge in said processing chamber; andat least one surface of an inner wall surface of said processing chamber in contact with plasma in said processing chamber and a surface of an internal component part is controlled to a predetermined temperature which is lower than the temperature of said sample to be processed and a strong polymerized film is formed on said inner wall surface of said processing chamber.