Invention Grant
- Patent Title: Plasma processing apparatus and plasma processing method
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Application No.: US14903396Application Date: 2014-07-03
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Publication No.: US09685305B2Publication Date: 2017-06-20
- Inventor: Koji Maruyama , Masato Horiguchi , Tetsuri Matsuki , Akira Koshiishi
- Applicant: Tokyo Electron Limited
- Applicant Address: JP Tokyo
- Assignee: TOKYO ELECTRON LIMITED
- Current Assignee: TOKYO ELECTRON LIMITED
- Current Assignee Address: JP Tokyo
- Agency: Pearne & Gordon LLP
- Priority: JP2013-166908 20130809
- International Application: PCT/JP2014/067844 WO 20140703
- International Announcement: WO2015/019765 WO 20150212
- Main IPC: H01L21/306
- IPC: H01L21/306 ; H01J37/32 ; H01L21/02 ; H01L21/3065 ; H01L21/67

Abstract:
A plasma processing apparatus includes a dielectric member having communication holes through which an internal space communicates with a processing space; a first electrode and a second electrode; a first gas supply device which supplies a first processing gas; a first high frequency power supply which supplies a first high frequency power to at least one of the electrodes to generate a first plasma of the first processing gas; a depressurizing device which introduces the first processing gas and radicals in the first plasma; a second high frequency power supply which supplies a second high frequency power to generate a second plasma of the first processing gas and to attract ions; and a control unit which adjusts, by controlling a total amount of the first high frequency powers, the radical amount in the second plasma and adjusts, by controlling a ratio therebetween, the ion amount therein.
Public/Granted literature
- US20160163515A1 PLASMA PROCESSING APPARATUS AND PLASMA PROCESSING METHOD Public/Granted day:2016-06-09
Information query
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