发明授权
- 专利标题: Wafer manufacturing method, polishing apparatus, and wafer
- 专利标题(中): 晶圆制造方法,抛光装置和晶片
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申请号: US10181829申请日: 2001-10-22
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公开(公告)号: US07582221B2公开(公告)日: 2009-09-01
- 发明人: Shigeyoshi Netsu , Hisashi Masumura
- 申请人: Shigeyoshi Netsu , Hisashi Masumura
- 申请人地址: JP Tokyo
- 专利权人: Shin-Etsu Handotai Co., Ltd.
- 当前专利权人: Shin-Etsu Handotai Co., Ltd.
- 当前专利权人地址: JP Tokyo
- 代理机构: Rader, Fishman & Grauer PLLC
- 优先权: JP2000-326470 20001026
- 国际申请: PCT/JP01/09240 WO 20011022
- 国际公布: WO02/35593 WO 20020502
- 主分类号: C03C15/00
- IPC分类号: C03C15/00 ; H01L21/302
摘要:
The present invention provides a wafer manufacturing method and a wafer polishing apparatus which enable control of sags in a periphery of a wafer and improvement of nanotopology values thereof that is strongly required recently, and a wafer. In a polishing process for making a mirror surface of the wafer, a back surface of the wafer is polished to produce a reference plane thereof.
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