- 专利标题: Substrate holding member
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申请号: US15574204申请日: 2016-12-16
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公开(公告)号: US10468289B2公开(公告)日: 2019-11-05
- 发明人: Tomohiro Ishino , Takashi Teshima
- 申请人: NGK SPARK PLUG CO., LTD.
- 申请人地址: JP Nagoya
- 专利权人: NGK SPARK PLUG CO., LTD.
- 当前专利权人: NGK SPARK PLUG CO., LTD.
- 当前专利权人地址: JP Nagoya
- 代理机构: Stites & Harbison, PLLC
- 代理商 Jeffrey A. Haeberlin; James R. Hayne
- 优先权: JP2015-254670 20151225; JP2016-236982 20161206
- 国际申请: PCT/JP2016/087461 WO 20161216
- 国际公布: WO2017/110660 WO 20170629
- 主分类号: H01L21/683
- IPC分类号: H01L21/683 ; G03F7/20 ; H01L21/687
摘要:
Provided is a substrate holding member that includes a base body and a plurality of protrusions formed on a surface of the base body and that is capable of suppressing generation of particles due to peeling-off or cracking of protective layers of the protrusions. A substrate holding member includes a base body and a plurality of protrusions formed on a surface of the base body. Each of the protrusions includes a base portion and a protective layer, the base portion having a flat upper end surface and being made from a silicon carbide sintered compact, the protective layer being made of silicon carbide. The protective layer includes a region on at least a part of the base portion from an edge of the upper end surface to a lower end of the base portion, the region being exposed along an entire periphery. Preferably, the protective layer is formed so as to cover at least only a part of an upper portion of the base portion, the upper portion including the upper end surface.
公开/授权文献
- US20180130692A1 SUBSTRATE HOLDING MEMBER 公开/授权日:2018-05-10
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