JP4579611B2 - ドライエッチング方法 - Google Patents
ドライエッチング方法 Download PDFInfo
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- JP4579611B2 JP4579611B2 JP2004225668A JP2004225668A JP4579611B2 JP 4579611 B2 JP4579611 B2 JP 4579611B2 JP 2004225668 A JP2004225668 A JP 2004225668A JP 2004225668 A JP2004225668 A JP 2004225668A JP 4579611 B2 JP4579611 B2 JP 4579611B2
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- Prior art keywords
- etching
- gas
- processing
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- photoresist
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L21/00—Processes or apparatus adapted for the manufacture or treatment of semiconductor or solid state devices or of parts thereof
- H01L21/02—Manufacture or treatment of semiconductor devices or of parts thereof
- H01L21/04—Manufacture or treatment of semiconductor devices or of parts thereof the devices having at least one potential-jump barrier or surface barrier, e.g. PN junction, depletion layer or carrier concentration layer
- H01L21/18—Manufacture or treatment of semiconductor devices or of parts thereof the devices having at least one potential-jump barrier or surface barrier, e.g. PN junction, depletion layer or carrier concentration layer the devices having semiconductor bodies comprising elements of Group IV of the Periodic System or AIIIBV compounds with or without impurities, e.g. doping materials
- H01L21/30—Treatment of semiconductor bodies using processes or apparatus not provided for in groups H01L21/20 - H01L21/26
- H01L21/302—Treatment of semiconductor bodies using processes or apparatus not provided for in groups H01L21/20 - H01L21/26 to change their surface-physical characteristics or shape, e.g. etching, polishing, cutting
- H01L21/306—Chemical or electrical treatment, e.g. electrolytic etching
- H01L21/3065—Plasma etching; Reactive-ion etching
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L21/00—Processes or apparatus adapted for the manufacture or treatment of semiconductor or solid state devices or of parts thereof
- H01L21/02—Manufacture or treatment of semiconductor devices or of parts thereof
- H01L21/04—Manufacture or treatment of semiconductor devices or of parts thereof the devices having at least one potential-jump barrier or surface barrier, e.g. PN junction, depletion layer or carrier concentration layer
- H01L21/18—Manufacture or treatment of semiconductor devices or of parts thereof the devices having at least one potential-jump barrier or surface barrier, e.g. PN junction, depletion layer or carrier concentration layer the devices having semiconductor bodies comprising elements of Group IV of the Periodic System or AIIIBV compounds with or without impurities, e.g. doping materials
- H01L21/30—Treatment of semiconductor bodies using processes or apparatus not provided for in groups H01L21/20 - H01L21/26
- H01L21/302—Treatment of semiconductor bodies using processes or apparatus not provided for in groups H01L21/20 - H01L21/26 to change their surface-physical characteristics or shape, e.g. etching, polishing, cutting
- H01L21/306—Chemical or electrical treatment, e.g. electrolytic etching
- H01L21/308—Chemical or electrical treatment, e.g. electrolytic etching using masks
- H01L21/3083—Chemical or electrical treatment, e.g. electrolytic etching using masks characterised by their size, orientation, disposition, behaviour, shape, in horizontal or vertical plane
- H01L21/3086—Chemical or electrical treatment, e.g. electrolytic etching using masks characterised by their size, orientation, disposition, behaviour, shape, in horizontal or vertical plane characterised by the process involved to create the mask, e.g. lift-off masks, sidewalls, or to modify the mask, e.g. pre-treatment, post-treatment
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L21/00—Processes or apparatus adapted for the manufacture or treatment of semiconductor or solid state devices or of parts thereof
- H01L21/02—Manufacture or treatment of semiconductor devices or of parts thereof
- H01L21/04—Manufacture or treatment of semiconductor devices or of parts thereof the devices having at least one potential-jump barrier or surface barrier, e.g. PN junction, depletion layer or carrier concentration layer
- H01L21/18—Manufacture or treatment of semiconductor devices or of parts thereof the devices having at least one potential-jump barrier or surface barrier, e.g. PN junction, depletion layer or carrier concentration layer the devices having semiconductor bodies comprising elements of Group IV of the Periodic System or AIIIBV compounds with or without impurities, e.g. doping materials
- H01L21/30—Treatment of semiconductor bodies using processes or apparatus not provided for in groups H01L21/20 - H01L21/26
- H01L21/31—Treatment of semiconductor bodies using processes or apparatus not provided for in groups H01L21/20 - H01L21/26 to form insulating layers thereon, e.g. for masking or by using photolithographic techniques; After treatment of these layers; Selection of materials for these layers
- H01L21/3105—After-treatment
- H01L21/311—Etching the insulating layers by chemical or physical means
- H01L21/31105—Etching inorganic layers
- H01L21/31111—Etching inorganic layers by chemical means
- H01L21/31116—Etching inorganic layers by chemical means by dry-etching
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L21/00—Processes or apparatus adapted for the manufacture or treatment of semiconductor or solid state devices or of parts thereof
- H01L21/02—Manufacture or treatment of semiconductor devices or of parts thereof
- H01L21/04—Manufacture or treatment of semiconductor devices or of parts thereof the devices having at least one potential-jump barrier or surface barrier, e.g. PN junction, depletion layer or carrier concentration layer
- H01L21/18—Manufacture or treatment of semiconductor devices or of parts thereof the devices having at least one potential-jump barrier or surface barrier, e.g. PN junction, depletion layer or carrier concentration layer the devices having semiconductor bodies comprising elements of Group IV of the Periodic System or AIIIBV compounds with or without impurities, e.g. doping materials
- H01L21/30—Treatment of semiconductor bodies using processes or apparatus not provided for in groups H01L21/20 - H01L21/26
- H01L21/31—Treatment of semiconductor bodies using processes or apparatus not provided for in groups H01L21/20 - H01L21/26 to form insulating layers thereon, e.g. for masking or by using photolithographic techniques; After treatment of these layers; Selection of materials for these layers
- H01L21/3105—After-treatment
- H01L21/311—Etching the insulating layers by chemical or physical means
- H01L21/31127—Etching organic layers
- H01L21/31133—Etching organic layers by chemical means
- H01L21/31138—Etching organic layers by chemical means by dry-etching
Description
Claims (3)
- 半導体基板に溝及び穴の形成を行うドライエッチング方法であって、
ホトレジストのパターンをもとにエッチングにてハードマスクを加工した後、
塩素含有ガスまたは臭素含有ガスまたはCF4,CHF3,CH2F2のうち何れか1種類のフッ素含有ガスに対して、酸素を1〜10%添加した混合ガスを用いたエッチングによりホトレジストのパターンを縮小化してハードマスクの角部を露出させ、露出したハードマスクの角部分を、CHF 3 に酸素を添加した混合ガス、またはCF4,CHF3,CH2F2 のうち何れか1種類のフッ素含有ガスを用いて行うエッチングによって独立してラウンド形状に加工することを特徴とするドライエッチング方法。 - 半導体基板に溝及び穴の形成を行うドライエッチング方法であって、
ホトレジストのパターンをもとにエッチングにてハードマスクを加工した後、
窒素,アルゴン,ヘリウムのうち何れか1種類の不活性ガスに対して、酸素を1〜10%添加した混合ガスを用いたエッチングによりホトレジストのパターンを縮小化してハードマスクの角部を露出させ、露出したハードマスクの角部分を、CHF 3 に酸素を添加した混合ガス、またはCF4,CHF3,CH2F2 のうち何れか1種類のフッ素含有ガスを用いて行うエッチングによって独立してラウンド形状に加工することを特徴とするドライエッチング方法。 - 半導体基板に溝及び穴の形成を行うドライエッチング方法であって、
ホトレジストのパターンをもとにエッチングにてハードマスクを加工した後、
塩素含有ガスまたは臭素含有ガスのハロゲン系ガスと、CF4,CHF3,CH2F2の何れか1種類のフッ素含有ガスと、窒素,アルゴン,ヘリウムの何れか1種類の不活性ガスから少なくとも2種類以上の混合ガスに対して、酸素を1〜10%添加した混合ガスを用いたエッチングによりホトレジストのパターンを縮小化してハードマスクの角部を露出させ、露出したハードマスクの角部分を、CHF 3 に酸素を添加した混合ガス、またはCF4,CHF3,CH2F2 のうち何れか1種類のフッ素含有ガスを用いて行うエッチングによって独立してラウンド形状に加工することを特徴とするドライエッチング方法。
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2004225668A JP4579611B2 (ja) | 2004-07-26 | 2004-08-02 | ドライエッチング方法 |
US10/928,266 US20060016781A1 (en) | 2004-07-26 | 2004-08-30 | Dry etching method |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2004217390 | 2004-07-26 | ||
JP2004225668A JP4579611B2 (ja) | 2004-07-26 | 2004-08-02 | ドライエッチング方法 |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2006066408A JP2006066408A (ja) | 2006-03-09 |
JP4579611B2 true JP4579611B2 (ja) | 2010-11-10 |
Family
ID=35656014
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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JP2004225668A Expired - Fee Related JP4579611B2 (ja) | 2004-07-26 | 2004-08-02 | ドライエッチング方法 |
Country Status (2)
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US (1) | US20060016781A1 (ja) |
JP (1) | JP4579611B2 (ja) |
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US20060016781A1 (en) | 2006-01-26 |
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