发明授权
- 专利标题: Polishing head and polishing apparatus
- 专利标题(中): 抛光头和抛光装置
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申请号: US13522370申请日: 2011-01-20
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公开(公告)号: US09278425B2公开(公告)日: 2016-03-08
- 发明人: Hiromasa Hashimoto , Kouji Morita , Takashi Aratani , Hiromi Kishida , Satoru Arakawa
- 申请人: Hiromasa Hashimoto , Kouji Morita , Takashi Aratani , Hiromi Kishida , Satoru Arakawa
- 申请人地址: JP Tokyo JP Nagano
- 专利权人: SHIN-ETSU HANDOTAI CO., LTD.,FUJIKOSHI MACHINERY CORP.
- 当前专利权人: SHIN-ETSU HANDOTAI CO., LTD.,FUJIKOSHI MACHINERY CORP.
- 当前专利权人地址: JP Tokyo JP Nagano
- 代理机构: Oliff PLC
- 优先权: JP2010-035255 20100219
- 国际申请: PCT/JP2011/000281 WO 20110120
- 国际公布: WO2011/102078 WO 20110825
- 主分类号: B24B37/30
- IPC分类号: B24B37/30 ; B24B37/32 ; H01L21/02
摘要:
A polishing head including, below a polishing head body, a rubber film held by a disk-shaped mid plate and an annular guide ring disposed around the rubber film holding the back surface of the workpiece on a lower face portion of the rubber film. The polishing head also includes a base member that is coupled to a polishing head body through an elastic film and holds the guide ring and the mid plate such that the lower surface of the guide ring does not contact the polishing pad during polishing. The polishing head and polishing apparatus, are operable in both of the rough polishing process and final polishing process, that can stably achieve predetermined high flatness and high polishing stock removal uniformity in polishing of a workpiece and can obtain a workpiece with fewer fine particles having a diameter of 45 nm or more.
公开/授权文献
- US20120289129A1 POLISHING HEAD AND POLISHING APPARATUS 公开/授权日:2012-11-15
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