Patent ID: 9281470
Filing Date: 2016-03-08
CPC Classification: H01J,H01L

Claim Text:
1. A method of processing a laminate including a magnetic layer by using a plasma processing apparatus including a processing chamber in which a sample is plasma-processed, a dielectric window to seal an upper part of the processing chamber hermetically, an inductive coupling antenna disposed above the dielectric window, a radio-frequency power source to supply radio-frequency electric power to the inductive coupling antenna and a Faraday shield disposed between the inductive coupling antenna and the dielectric window, the method comprising the steps of: plasma-etching the laminate while applying a first radio-frequency voltage to the Faraday shield to form a plasma-etched laminate, and forming a deposit layer on the plasma-etched laminate by plasma processing while applying a second radio-frequency voltage to the Faraday shield, wherein the second radio-frequency voltage is higher than the first radio-frequency voltage.