发明公开
EP0986097A2 Method for reclaiming wafer substrate and polishing solution composition for reclaiming wafer substrate
有权
Verfahren zurRückgewinnungvon Substratscheiben
- 专利标题: Method for reclaiming wafer substrate and polishing solution composition for reclaiming wafer substrate
- 专利标题(中): Verfahren zurRückgewinnungvon Substratscheiben
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申请号: EP99306853.5申请日: 1999-08-27
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公开(公告)号: EP0986097A2公开(公告)日: 2000-03-15
- 发明人: Hara, Yoshihiro, c/o Kobe Corporate Res. Lab. , Suzuki, Tetsuo, c/o Kobe Corporate Res. Lab. , Takada, Satoru , Inoue, Hidetoshi
- 申请人: KABUSHIKI KAISHA KOBE SEIKO SHO , Kobe Precision Inc.
- 申请人地址: 3-18 Wakinohama-cho, 1-Chome, Chuo-ku Kobe-Shi, Hyogo-ken 651-0072 JP
- 专利权人: KABUSHIKI KAISHA KOBE SEIKO SHO,Kobe Precision Inc.
- 当前专利权人: KABUSHIKI KAISHA KOBE SEIKO SHO,Kobe Precision Inc.
- 当前专利权人地址: 3-18 Wakinohama-cho, 1-Chome, Chuo-ku Kobe-Shi, Hyogo-ken 651-0072 JP
- 代理机构: Hall, Marina
- 优先权: JP24386898 19980828
- 主分类号: H01L21/306
- IPC分类号: H01L21/306
摘要:
A method for reclaiming a wafer substrate material having a metallic film and an dielectric film includes a step for removing the entire metallic film and a part of the dielectric film with a chemical etching agent so as not to substantially dissolve the wafer substrate material itself, a step for removing the residual dielectric layer and the degenerated zone beneath the surface of the substrate by chemical-mechanical polishing, and a step for polishing at least one surface of the substrate.
公开/授权文献
- EP0986097B1 Method for reclaiming wafer substrate 公开/授权日:2008-05-21
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