Invention Grant
- Patent Title: Dry cleaning method for plasma processing apparatus
- Patent Title (中): 等离子体处理设备的干洗方法
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Application No.: US12598081Application Date: 2008-05-28
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Publication No.: US08133325B2Publication Date: 2012-03-13
- Inventor: Masahisa Ueda , Yutaka Kokaze , Mitsuhiro Endou , Koukou Suu
- Applicant: Masahisa Ueda , Yutaka Kokaze , Mitsuhiro Endou , Koukou Suu
- Applicant Address: JP Chigasaki-Shi
- Assignee: ULVAC, Inc.
- Current Assignee: ULVAC, Inc.
- Current Assignee Address: JP Chigasaki-Shi
- Agency: Grossman, Tucker, Perreault & Pfleger, PLLC
- Priority: JP2007-145018 20070531
- International Application: PCT/JP2008/059794 WO 20080528
- International Announcement: WO2008/149741 WO 20081211
- Main IPC: C25F1/00
- IPC: C25F1/00

Abstract:
This dry cleaning method for a plasma processing apparatus is a dry cleaning method for a plasma processing apparatus that includes: a vacuum container provided with a dielectric member; a planar electrode and a high-frequency antenna that are provided outside the dielectric member; and a high-frequency power source that supplies high-frequency power to both the high-frequency antenna and the planar electrode, to thereby introduce high-frequency power into the vacuum container via the dielectric member and produce an inductively-coupled plasma, the method comprising the steps of: introducing a gas including fluorine into the vacuum container and also introducing high-frequency power into the vacuum container from the high-frequency power source, to thereby produce an inductively-coupled plasma in the gas including fluorine; and by use of the inductively-coupled plasma, removing a product including at least one of a precious metal and a ferroelectric that is adhered to the dielectric member.
Public/Granted literature
- US20100083981A1 DRY CLEANING METHOD FOR PLASMA PROCESSING APPARATUS Public/Granted day:2010-04-08
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