Invention Application
US20050269292A1 Plasma processing apparatus and method, and electrode plate for plasma processing apparatus 有权
等离子体处理装置和方法以及等离子体处理装置的电极板

Plasma processing apparatus and method, and electrode plate for plasma processing apparatus
Abstract:
A plasma processing apparatus includes a process container configured to have a vacuum atmosphere therein. A first upper electrode is disposed to have a ring shape and to face a target substrate placed within the process container. A second upper electrode is disposed radially inside the first upper electrode and electrically insulated therefrom. A first electric feeder is configured to supply a first RF output from a first RF power supply to the first upper electrode at a first power value. A second electric feeder branches from the first electric feeder and is configured to supply the first RF output from the first RF power supply to the second upper electrode at a second power value smaller than the first power value.
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