JP2008512853A - 均一性を制御したエッチング - Google Patents
均一性を制御したエッチング Download PDFInfo
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- JP2008512853A JP2008512853A JP2007529970A JP2007529970A JP2008512853A JP 2008512853 A JP2008512853 A JP 2008512853A JP 2007529970 A JP2007529970 A JP 2007529970A JP 2007529970 A JP2007529970 A JP 2007529970A JP 2008512853 A JP2008512853 A JP 2008512853A
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- 238000005530 etching Methods 0.000 title claims abstract description 76
- 229920002120 photoresistant polymer Polymers 0.000 claims abstract description 48
- 239000007789 gas Substances 0.000 claims abstract description 36
- 229920000642 polymer Polymers 0.000 claims abstract description 32
- 238000000034 method Methods 0.000 claims abstract description 31
- 238000007740 vapor deposition Methods 0.000 claims abstract description 17
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims abstract description 11
- 229910052799 carbon Inorganic materials 0.000 claims abstract description 11
- 239000001257 hydrogen Substances 0.000 claims abstract description 11
- 229910052739 hydrogen Inorganic materials 0.000 claims abstract description 11
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 claims abstract description 10
- 239000004065 semiconductor Substances 0.000 claims abstract description 7
- 238000000151 deposition Methods 0.000 claims description 19
- 230000008021 deposition Effects 0.000 claims description 18
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 6
- 239000001301 oxygen Substances 0.000 claims description 6
- 229910052760 oxygen Inorganic materials 0.000 claims description 6
- YCKRFDGAMUMZLT-UHFFFAOYSA-N Fluorine atom Chemical compound [F] YCKRFDGAMUMZLT-UHFFFAOYSA-N 0.000 claims description 4
- 239000011737 fluorine Substances 0.000 claims description 4
- 229910052731 fluorine Inorganic materials 0.000 claims description 4
- 230000015572 biosynthetic process Effects 0.000 claims description 3
- 229910052710 silicon Inorganic materials 0.000 claims description 2
- 239000010703 silicon Substances 0.000 claims description 2
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims 1
- 238000011065 in-situ storage Methods 0.000 claims 1
- 229910052814 silicon oxide Inorganic materials 0.000 claims 1
- 239000000463 material Substances 0.000 description 9
- 239000006117 anti-reflective coating Substances 0.000 description 5
- 239000011368 organic material Substances 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 150000002500 ions Chemical class 0.000 description 2
- 150000003254 radicals Chemical class 0.000 description 2
- 238000006467 substitution reaction Methods 0.000 description 2
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 1
- BOTDANWDWHJENH-UHFFFAOYSA-N Tetraethyl orthosilicate Chemical compound CCO[Si](OCC)(OCC)OCC BOTDANWDWHJENH-UHFFFAOYSA-N 0.000 description 1
- 238000013500 data storage Methods 0.000 description 1
- 230000009977 dual effect Effects 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 230000006870 function Effects 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 239000001307 helium Substances 0.000 description 1
- 229910052734 helium Inorganic materials 0.000 description 1
- SWQJXJOGLNCZEY-UHFFFAOYSA-N helium atom Chemical compound [He] SWQJXJOGLNCZEY-UHFFFAOYSA-N 0.000 description 1
- 150000002431 hydrogen Chemical class 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 238000000059 patterning Methods 0.000 description 1
- 239000002861 polymer material Substances 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
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Classifications
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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
- H01L21/027—Making masks on semiconductor bodies for further photolithographic processing not provided for in group H01L21/18 or H01L21/34
- H01L21/0271—Making masks on semiconductor bodies for further photolithographic processing not provided for in group H01L21/18 or H01L21/34 comprising organic layers
-
- 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
- H01L21/027—Making masks on semiconductor bodies for further photolithographic processing not provided for in group H01L21/18 or H01L21/34
- H01L21/033—Making masks on semiconductor bodies for further photolithographic processing not provided for in group H01L21/18 or H01L21/34 comprising inorganic layers
- H01L21/0334—Making masks on semiconductor bodies for further photolithographic processing not provided for in group H01L21/18 or H01L21/34 comprising inorganic layers characterised by their size, orientation, disposition, behaviour, shape, in horizontal or vertical plane
-
- 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 potential barriers, e.g. a PN junction, depletion layer or carrier concentration layer
- H01L21/18—Manufacture or treatment of semiconductor devices or of parts thereof the devices having potential barriers, e.g. a PN junction, depletion layer or carrier concentration layer the devices having semiconductor bodies comprising elements of Group IV of the Periodic Table 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 potential barriers, e.g. a PN junction, depletion layer or carrier concentration layer
- H01L21/18—Manufacture or treatment of semiconductor devices or of parts thereof the devices having potential barriers, e.g. a PN junction, depletion layer or carrier concentration layer the devices having semiconductor bodies comprising elements of Group IV of the Periodic Table 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
- H01L21/31144—Etching the insulating layers by chemical or physical means using masks
-
- 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
- H01L21/027—Making masks on semiconductor bodies for further photolithographic processing not provided for in group H01L21/18 or H01L21/34
- H01L21/033—Making masks on semiconductor bodies for further photolithographic processing not provided for in group H01L21/18 or H01L21/34 comprising inorganic layers
- H01L21/0332—Making masks on semiconductor bodies for further photolithographic processing not provided for in group H01L21/18 or H01L21/34 comprising inorganic layers characterised by their composition, e.g. multilayer masks, materials
-
- 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
- H01L21/027—Making masks on semiconductor bodies for further photolithographic processing not provided for in group H01L21/18 or H01L21/34
- H01L21/033—Making masks on semiconductor bodies for further photolithographic processing not provided for in group H01L21/18 or H01L21/34 comprising inorganic layers
- H01L21/0334—Making masks on semiconductor bodies for further photolithographic processing not provided for in group H01L21/18 or H01L21/34 comprising inorganic layers characterised by their size, orientation, disposition, behaviour, shape, in horizontal or vertical plane
- H01L21/0337—Making masks on semiconductor bodies for further photolithographic processing not provided for in group H01L21/18 or H01L21/34 comprising inorganic layers 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
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Condensed Matter Physics & Semiconductors (AREA)
- General Physics & Mathematics (AREA)
- Manufacturing & Machinery (AREA)
- Computer Hardware Design (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Power Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Inorganic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Drying Of Semiconductors (AREA)
- Physical Vapour Deposition (AREA)
- Internal Circuitry In Semiconductor Integrated Circuit Devices (AREA)
- Formation Of Insulating Films (AREA)
Abstract
【解決手段】ウエハ上に半導体素子を形成する方法が提供されている。エッチング層が、ウエハの上に形成される。フォトレジストマスクが、エッチング層の上に形成される。フォトレジストマスクは、ウエハの外縁付近のみ除去されて、ウエハの外縁付近のエッチング層が露出される。炭素および水素を含有する種を備えた蒸着ガスが供給される。蒸着ガスから、プラズマが形成される。ポリマ層が、ウエハの外縁付近の露出エッチング層に蒸着される。この時、ポリマは、蒸着ガス由来のプラズマから形成される。フォトレジストマスクと、ウエハの外縁付近の露出エッチング層に蒸着されたポリマとが消費されつつ、フォトレジストマスクを介してエッチング層がエッチングされる。
【選択図】図1
Description
本発明の一実施例では、シリコンウエハの上に、SiC、SiCOH、TEOSの順に、エッチング層が蒸着される(ステップ104)。レジスト状の有機材料であるARC層が、エッチング層の上に形成される。エッチング層の上のARC層には、フォトレジストマスクが形成される(ステップ108)。この実施例では、フォトレジストマスクは、好ましくは248nm用フォトレジスト(例えば、KrF用)からなる。別の実施形態では、i−line用など、別のフォトレジストや、ArF用など、193nm以下の波長用のフォトレジストを用いてもよい。ウエハの縁部から3mm以内のフォトレジストが除去される。湿式剥離レジスト現像剤を用いた湿式剥離によって、ウエハの縁部付近のフォトレジストが除去される(ステップ112)。ウエハは、エッチングチャンバ内に配置される(ステップ114)。この実施例では、エッチングチャンバは、二重周波数エッチングリアクタである。
Claims (12)
- ウエハに半導体素子を形成する方法であって、
ウエハの上にエッチング層を形成し、
前記エッチング層の上にフォトレジストマスクを形成し、
前記ウエハの外縁付近のみ前記フォトレジストマスクを除去して、前記ウエハの前記外縁付近の前記エッチング層を露出させ、
炭素および水素を含有する種を備えた蒸着ガスを供給し、
前記蒸着ガスからプラズマを形成し、
前記ウエハの前記外縁付近の前記露出エッチング層の上にポリマ層を蒸着し、前記ポリマは前記蒸着ガス由来の前記プラズマから形成され、
前記フォトレジストマスクと、前記ウエハの前記外縁付近の前記露出エッチング層に蒸着された前記ポリマとを消費しつつ、前記フォトレジストマスクを介して前記エッチング層をエッチングすることを備える、方法。 - 請求項1に記載の方法は、さらに、
前記ウエハの前記外縁付近の前記フォトレジストマスクを除去した後に、前記ウエハをエッチングチャンバ内に配置することを備え、
前記蒸着ガスの供給、前記蒸着ガスからのプラズマの形成、ポリマ層の蒸着、前記エッチング層のエッチングは、前記エッチングチャンバにおいて、その場で実行され、
前記露出エッチング層に蒸着された前記ポリマ層は、前記ウエハにおけるエッチングの均一性を増大させる、方法。 - 請求項1ないし2のいずれかに記載の方法であって、前記蒸着ガスは、さらに、フッ素を含有する種を備え、前記ポリマ層は、ハイドロフルオロカーボンポリマである、方法。
- 請求項1ないし3のいずれかに記載の方法であって、前記ウエハの前記外縁付近のみにおける前記フォトレジストマスクの除去は、湿式剥離を用いて、前記ウエハの前記外縁付近のみ前記フォトレジストマスクを除去することを備える、方法。
- 請求項1ないし4のいずれかに記載の方法であって、前記ウエハの前記外縁付近のみにおける前記フォトレジストマスクの除去は、さらに、前記ウエハの前記外縁付近の2ないし3mmの前記フォトレジストマスクのみを除去することを備える、方法。
- 請求項1ないし5のいずれかに記載の方法であって、前記蒸着ガスにおける炭素対水素の比は、1:1から1:3の範囲である、方法。
- 請求項1ないし6のいずれかに記載の方法であって、前記蒸着ガスは、さらに、酸素を備える、方法。
- 請求項3ないし7のいずれかに記載の方法であって、前記炭素と水素とフッ素とを含有する種は、ハイドロフルオロカーボンである、方法。
- 請求項8に記載の方法であって、前記ハイドロフルオロカーボンは、CHF3、CH2F2、およびCH3Fの中の少なくとも1つである、方法。
- 請求項1ないし9のいずれかに記載の方法であって、前記エッチング層は、シリコンを備える、方法。
- 請求項1ないし10のいずれかに記載の方法であって、前記エッチング層は、酸化シリコン、SiC、およびSiCOHの中の少なくとも1つを備える、方法。
- 請求項1ないし11のいずれかに記載の方法であって、前記蒸着ガスは、さらに、Ar、N2、およびC4F8を備える、方法。
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US10/934,324 US7090782B1 (en) | 2004-09-03 | 2004-09-03 | Etch with uniformity control |
PCT/US2005/029308 WO2006028673A1 (en) | 2004-09-03 | 2005-08-17 | Etch with uniformity control |
Related Child Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2012199642A Division JP2013016844A (ja) | 2004-09-03 | 2012-09-11 | 均一性を制御したエッチング |
Publications (1)
Publication Number | Publication Date |
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JP2008512853A true JP2008512853A (ja) | 2008-04-24 |
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ID=35478640
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
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JP2007529970A Withdrawn JP2008512853A (ja) | 2004-09-03 | 2005-08-17 | 均一性を制御したエッチング |
JP2012199642A Withdrawn JP2013016844A (ja) | 2004-09-03 | 2012-09-11 | 均一性を制御したエッチング |
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JP2012199642A Withdrawn JP2013016844A (ja) | 2004-09-03 | 2012-09-11 | 均一性を制御したエッチング |
Country Status (6)
Country | Link |
---|---|
US (1) | US7090782B1 (ja) |
JP (2) | JP2008512853A (ja) |
KR (1) | KR101155843B1 (ja) |
CN (1) | CN100487874C (ja) |
TW (1) | TWI405265B (ja) |
WO (1) | WO2006028673A1 (ja) |
Families Citing this family (9)
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CN1978351A (zh) * | 2005-12-02 | 2007-06-13 | 鸿富锦精密工业(深圳)有限公司 | 一种模仁保护膜的去除装置及方法 |
US8370836B2 (en) | 2010-01-28 | 2013-02-05 | Dell Products, Lp | System and method to enable power related decisions in a virtualization environment |
US8598040B2 (en) * | 2011-09-06 | 2013-12-03 | Lam Research Corporation | ETCH process for 3D flash structures |
JP5973763B2 (ja) * | 2012-03-28 | 2016-08-23 | 東京エレクトロン株式会社 | 自己組織化可能なブロック・コポリマーを用いて周期パターン形成する方法及び装置 |
US20130267097A1 (en) * | 2012-04-05 | 2013-10-10 | Lam Research Corporation | Method and apparatus for forming features with plasma pre-etch treatment on photoresist |
CN103456623A (zh) * | 2012-05-29 | 2013-12-18 | 上海宏力半导体制造有限公司 | 减少晶圆边缘聚合物沉积的刻蚀控制方法 |
CN103000513B (zh) * | 2012-12-19 | 2015-10-28 | 复旦大学 | 一种多孔低介电常数材料SiCOH薄膜的刻蚀方法 |
US10386829B2 (en) * | 2015-09-18 | 2019-08-20 | Kla-Tencor Corporation | Systems and methods for controlling an etch process |
CN109273358A (zh) * | 2018-08-31 | 2019-01-25 | 上海华力集成电路制造有限公司 | 晶圆的侧墙刻蚀方法 |
Citations (3)
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JPH11340207A (ja) * | 1998-05-22 | 1999-12-10 | Tokyo Electron Ltd | エッチング方法 |
JP2003051443A (ja) * | 2001-06-28 | 2003-02-21 | Hynix Semiconductor Inc | 半導体素子の微細パターン形成方法 |
WO2004034445A2 (en) * | 2002-10-11 | 2004-04-22 | Lam Research Corporation | A method for plasma etching performance enhancement |
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JP3178379B2 (ja) | 1997-07-29 | 2001-06-18 | 住友電装株式会社 | 電気接続箱 |
US5783482A (en) * | 1997-09-12 | 1998-07-21 | Taiwan Semiconductor Manufacturing Company, Ltd. | Method to prevent oxide peeling induced by sog etchback on the wafer edge |
TW392228B (en) | 1999-01-19 | 2000-06-01 | United Microelectronics Corp | Method for removing photoresist on wafer edge in manufacturing semiconductor devices |
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2004
- 2004-09-03 US US10/934,324 patent/US7090782B1/en active Active
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2005
- 2005-08-17 KR KR1020077007645A patent/KR101155843B1/ko active IP Right Grant
- 2005-08-17 WO PCT/US2005/029308 patent/WO2006028673A1/en active Application Filing
- 2005-08-17 CN CNB2005800382310A patent/CN100487874C/zh not_active Expired - Fee Related
- 2005-08-17 JP JP2007529970A patent/JP2008512853A/ja not_active Withdrawn
- 2005-08-24 TW TW094128974A patent/TWI405265B/zh active
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- 2012-09-11 JP JP2012199642A patent/JP2013016844A/ja not_active Withdrawn
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH11340207A (ja) * | 1998-05-22 | 1999-12-10 | Tokyo Electron Ltd | エッチング方法 |
JP2003051443A (ja) * | 2001-06-28 | 2003-02-21 | Hynix Semiconductor Inc | 半導体素子の微細パターン形成方法 |
WO2004034445A2 (en) * | 2002-10-11 | 2004-04-22 | Lam Research Corporation | A method for plasma etching performance enhancement |
Also Published As
Publication number | Publication date |
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WO2006028673A1 (en) | 2006-03-16 |
KR20070097408A (ko) | 2007-10-04 |
CN100487874C (zh) | 2009-05-13 |
US7090782B1 (en) | 2006-08-15 |
TW200618115A (en) | 2006-06-01 |
JP2013016844A (ja) | 2013-01-24 |
CN101057320A (zh) | 2007-10-17 |
TWI405265B (zh) | 2013-08-11 |
KR101155843B1 (ko) | 2012-06-20 |
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