发明公开
- 专利标题: PROCÉDÉ DE RÉALISATION DE MOTIFS
- 专利标题(英): Method for producing patterns
- 专利标题(中): PROCÉDÉDERÉALISATIONDE MOTIFS
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申请号: EP15820159.0申请日: 2015-12-22
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公开(公告)号: EP3238233A1公开(公告)日: 2017-11-01
- 发明人: POSSEME, Nicolas , LANDIS, Stéphan , NOURI, Lamia
- 申请人: Commissariat à l'Énergie Atomique et aux Énergies Alternatives
- 申请人地址: 25, Rue Leblanc Bâtiment "Le Ponant D" 75015 Paris FR
- 专利权人: Commissariat à l'Énergie Atomique et aux Énergies Alternatives
- 当前专利权人: Commissariat à l'Énergie Atomique et aux Énergies Alternatives
- 当前专利权人地址: 25, Rue Leblanc Bâtiment "Le Ponant D" 75015 Paris FR
- 代理机构: Hautier, Nicolas
- 优先权: FR1463153 20141222
- 国际公布: WO2016102628 20160630
- 主分类号: H01L21/3065
- IPC分类号: H01L21/3065 ; B81C99/00 ; G02B5/18 ; H01L21/308 ; H01L21/311 ; H01L21/768 ; B29D11/00 ; G02B3/00
摘要:
The invention concerns, in particular, a method for producing patterns in a layer to be etched (410), from a stack comprising at least the layer to be etched (410) and one masking layer (420) overlying the layer to be etched (410), the masking layer (420) having at least one pattern (421), the method comprising at least: a) a step of modifying at least one area (411) of the layer to be etched (410) by ion implantation (430) in line with the at least one pattern (421); b) at least one sequence of steps comprising: b1) a step (440) of enlarging the at least one pattern (421) in a plane in which the layer (410) to be etched mainly extends; b2) a step of modifying at least one area (411', 411'') of the layer to be etched (410) by ion implantation (430) in line with the at least one enlarged pattern (421), the implantation being carried out at a depth less than the implantation depth of the preceding modification step; c) a step (461, 462) of removing the modified areas (411, 411', 411''), the removal comprising a step of etching the modified areas (411, 411', 411'') selectively to the non-modified areas (412) of the layer (410) to be etched.
公开/授权文献
- EP3238233B1 PROCÉDÉ DE RÉALISATION DE MOTIFS 公开/授权日:2019-07-17
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