Patent ID: 8242405
Filing Date: 2012-08-14
Classification: H01J,H05H

Abstract:
1. A microwave plasma processing apparatus comprising: a processing container having therein a support for supporting a substrate to be processed; an exhaust system connected to the processing container; a microwave transmission window provided on the processing container so as to face the substrate to be processed on the support; a gas supply unit supplying a plasma generating gas to the processing container; and a microwave antenna provided on the processing container, wherein the microwave antenna comprises a cooling jacket comprising a cooling portion body having a communicating hole for flowing a refrigerant and a lid, a wavelength-shortening plate in contact with the cooling portion body of the cooling jacket, and a slot plate in contact with the wavelength-shortening plate at opposite side of the cooling jacket, and the cooling portion body is formed of a material having a thermal expansion coefficient substantially identical to that of a material forming the wavelength-shortening plate.