- 专利标题: Plasma etching method
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申请号: US16324982申请日: 2017-07-21
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公开(公告)号: US10566208B2公开(公告)日: 2020-02-18
- 发明人: Takaaki Sakurai , Hirotoshi Inui
- 申请人: ZEON CORPORATION
- 申请人地址: JP Chiyoda-ku, Tokyo
- 专利权人: ZEON CORPORATION
- 当前专利权人: ZEON CORPORATION
- 当前专利权人地址: JP Chiyoda-ku, Tokyo
- 代理机构: Kenja IP Law PC
- 优先权: JP2016-165009 20160825
- 国际申请: PCT/JP2017/026553 WO 20170721
- 国际公布: WO2018/037799 WO 20180301
- 主分类号: H01L21/311
- IPC分类号: H01L21/311 ; H01L21/3065
摘要:
A plasma etching method for etching a multilayer laminate in which a silicon oxide film and a silicon nitride film are stacked includes an etching step of plasma etching the silicon oxide film and the silicon nitride film using a gas of a non-bromine-containing fluorocarbon together with a gas of a bromine-containing fluorocarbon compound represented by a compositional formula C3H2BrF3.
公开/授权文献
- US20190228983A1 PLASMA ETCHING METHOD 公开/授权日:2019-07-25
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