- 专利标题: Polishing liquid, polishing liquid set, and polishing method
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申请号: US16981560申请日: 2018-09-25
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公开(公告)号: US11572490B2公开(公告)日: 2023-02-07
- 发明人: Tomohiro Iwano
- 申请人: HITACHI CHEMICAL COMPANY, LTD.
- 申请人地址: JP Tokyo
- 专利权人: HITACHI CHEMICAL COMPANY, LTD.
- 当前专利权人: HITACHI CHEMICAL COMPANY, LTD.
- 当前专利权人地址: JP Tokyo
- 代理机构: Fitch, Even, Tabin & Flannery, L.L.P.
- 优先权: WOPCT/JP2018/011464 20180322,WOPCT/JP2018/028105 20180726
- 国际申请: PCT/JP2018/035456 WO 20180925
- 国际公布: WO2019/181013 WO 20190926
- 主分类号: C09G1/02
- IPC分类号: C09G1/02 ; B24B37/04 ; C09K3/14 ; H01L21/3105
摘要:
A polishing liquid containing abrasive grains, a hydroxy acid, a polyol, and a liquid medium, in which a zeta potential of the abrasive grains is positive, and the hydroxy acid has one carboxyl group and one to three hydroxyl groups.
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