JP2008192906A - プラズマエッチング方法、プラズマエッチング装置、制御プログラム及びコンピュータ記憶媒体 - Google Patents
プラズマエッチング方法、プラズマエッチング装置、制御プログラム及びコンピュータ記憶媒体 Download PDFInfo
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- JP2008192906A JP2008192906A JP2007026880A JP2007026880A JP2008192906A JP 2008192906 A JP2008192906 A JP 2008192906A JP 2007026880 A JP2007026880 A JP 2007026880A JP 2007026880 A JP2007026880 A JP 2007026880A JP 2008192906 A JP2008192906 A JP 2008192906A
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- 238000001020 plasma etching Methods 0.000 title claims abstract description 89
- 238000000034 method Methods 0.000 title claims abstract description 73
- 239000007789 gas Substances 0.000 claims abstract description 203
- 238000005530 etching Methods 0.000 claims abstract description 36
- 229910052814 silicon oxide Inorganic materials 0.000 claims abstract description 22
- NBVXSUQYWXRMNV-UHFFFAOYSA-N fluoromethane Chemical compound FC NBVXSUQYWXRMNV-UHFFFAOYSA-N 0.000 claims abstract description 19
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 claims abstract description 17
- 229910052710 silicon Inorganic materials 0.000 claims abstract description 17
- 239000010703 silicon Substances 0.000 claims abstract description 17
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims abstract description 10
- 239000001301 oxygen Substances 0.000 claims abstract description 10
- 229910052760 oxygen Inorganic materials 0.000 claims abstract description 10
- 239000000758 substrate Substances 0.000 claims description 10
- 229910004298 SiO 2 Inorganic materials 0.000 claims description 3
- 239000000203 mixture Substances 0.000 abstract description 2
- 229910052756 noble gas Inorganic materials 0.000 abstract 1
- 239000004065 semiconductor Substances 0.000 description 28
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 10
- 230000000052 comparative effect Effects 0.000 description 7
- 239000003507 refrigerant Substances 0.000 description 7
- 238000009792 diffusion process Methods 0.000 description 6
- 229920002120 photoresistant polymer Polymers 0.000 description 6
- 150000002500 ions Chemical class 0.000 description 5
- 239000004020 conductor Substances 0.000 description 4
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 3
- 229910052782 aluminium Inorganic materials 0.000 description 3
- 230000008021 deposition Effects 0.000 description 3
- 230000002349 favourable effect Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000002159 abnormal effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000006227 byproduct Substances 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 239000000498 cooling water Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005684 electric field Effects 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
- 239000012212 insulator Substances 0.000 description 1
- 229910021421 monocrystalline silicon Inorganic materials 0.000 description 1
- 239000010453 quartz Substances 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
- 238000011144 upstream manufacturing Methods 0.000 description 1
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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 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
- H01L21/31127—Etching organic layers
- H01L21/31133—Etching organic layers by chemical means
- H01L21/31138—Etching organic 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
- H01L21/302—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
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J37/00—Discharge tubes with provision for introducing objects or material to be exposed to the discharge, e.g. for the purpose of examination or processing thereof
- H01J37/32—Gas-filled discharge tubes
- H01J37/32009—Arrangements for generation of plasma specially adapted for examination or treatment of objects, e.g. plasma sources
- H01J37/32082—Radio frequency generated discharge
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J37/00—Discharge tubes with provision for introducing objects or material to be exposed to the discharge, e.g. for the purpose of examination or processing thereof
- H01J37/32—Gas-filled discharge tubes
- H01J37/32431—Constructional details of the reactor
- H01J37/32697—Electrostatic control
- H01J37/32706—Polarising the substrate
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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 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
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- Microelectronics & Electronic Packaging (AREA)
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- Plasma & Fusion (AREA)
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Abstract
【解決手段】パターニングしたSiON膜103をマスクとして、有機膜102をプラズマエッチングし、開口108を形成する。この有機膜102のプラズマエッチングに、酸素(O)含有ガスと、希ガスと、フッ化炭素ガス(CF系ガス)とを含む混合ガスからなる処理ガスを用いる。
【選択図】図1
Description
処理ガス:CF4/N2/O2=150/75/5 sccm
圧力:13.3Pa(100mTorr)
高周波電力(40MHz/2MHz):1000/0W
直流電圧:−300V
処理ガス:O2/Xe/C4F6=125/125/10 sccm
圧力:1.33Pa(10mTorr)
高周波電力(40MHz/2MHz):1400/0W
直流電圧:0V
処理ガス:O2/Xe/C4F6=200/50/10 sccm
(比較例1)
処理ガス:O2=250 sccm
(比較例2)
処理ガス:O2/C4F6=250/10 sccm
(比較例3)
処理ガス:O2/Xe=125/125 sccm
Claims (9)
- 被処理基板に形成された有機膜を、シリコン含有膜からなるマスクを介して、処理ガスのプラズマによってエッチングするプラズマエッチング方法であって、
前記処理ガスが、酸素含有ガスと、希ガスと、フッ化炭素ガスとを含む混合ガスからなることを特徴とするプラズマエッチング方法。 - 請求項1記載のプラズマエッチング方法であって、
前記酸素含有ガスが、O2ガス、COガス、CO2ガスのいずれかからなる単ガス又はこれらの組合せからなる混合ガスであることを特徴とするプラズマエッチング方法。 - 請求項2記載のプラズマエッチング方法であって、
前記酸素含有ガスが、O2ガスの単ガスであり、前記フッ化炭素ガスのO2ガスに対する流量割合が1%〜10%であることを特徴とするプラズマエッチング方法。 - 請求項3記載のプラズマエッチング方法であって、
前記フッ化炭素ガスが、C4F6ガスであり、C4F6ガスのO2ガスに対する流量割合が5%〜10%であることを特徴とするプラズマエッチング方法。 - 請求項1〜3いずれか1項記載のプラズマエッチング方法であって、
前記フッ化炭素ガスが、C4F6ガス、C4F8ガス、C3F8ガス、C2F6ガス、CF4ガス、C5F8ガス、C6F6ガスのいずれかであることを特徴とするプラズマエッチング方法。 - 請求項1〜5いずれか1項記載のプラズマエッチング方法であって、
前記シリコン含有膜が、SiON膜、SiN膜、SiO2膜、SiC膜、SiOC膜、SiOCH膜のいずれかであることを特徴とするプラズマエッチング方法。 - 被処理基板を収容する処理チャンバーと、
前記処理チャンバー内に処理ガスを供給する処理ガス供給手段と、
前記処理ガス供給手段から供給された前記処理ガスをプラズマ化して前記被処理基板を処理するプラズマ生成手段と、
前記処理チャンバー内で請求項1から請求項6いずれか1項記載のプラズマエッチング方法が行われるように制御する制御部と
を備えたことを特徴とするプラズマエッチング装置。 - コンピュータ上で動作し、実行時に、請求項1から請求項6いずれか1項記載のプラズマエッチング方法が行われるようにプラズマエッチング装置を制御することを特徴とする制御プログラム。
- コンピュータ上で動作する制御プログラムが記憶されたコンピュータ記憶媒体であって、
前記制御プログラムは、実行時に請求項1から請求項6いずれか1項記載のプラズマエッチング方法が行われるようにプラズマエッチング装置を制御することを特徴とするコンピュータ記憶媒体。
Priority Applications (5)
Application Number | Priority Date | Filing Date | Title |
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JP2007026880A JP4912907B2 (ja) | 2007-02-06 | 2007-02-06 | プラズマエッチング方法及びプラズマエッチング装置 |
KR1020080010337A KR100924853B1 (ko) | 2007-02-06 | 2008-01-31 | 플라즈마 에칭 방법, 플라즈마 에칭 장치, 제어 프로그램및 컴퓨터 기억매체 |
US12/023,620 US8216485B2 (en) | 2007-02-06 | 2008-01-31 | Plasma etching method, plasma etching apparatus, control program and computer-readable storage medium |
TW097104349A TWI446436B (zh) | 2007-02-06 | 2008-02-04 | Plasma etching method, plasma etching device, control program and computer memory media |
CN2008100086933A CN101241859B (zh) | 2007-02-06 | 2008-02-05 | 等离子体蚀刻方法和装置、控制程序和计算机存储介质 |
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JP2007026880A JP4912907B2 (ja) | 2007-02-06 | 2007-02-06 | プラズマエッチング方法及びプラズマエッチング装置 |
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JP2008192906A true JP2008192906A (ja) | 2008-08-21 |
JP4912907B2 JP4912907B2 (ja) | 2012-04-11 |
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US (1) | US8216485B2 (ja) |
JP (1) | JP4912907B2 (ja) |
KR (1) | KR100924853B1 (ja) |
CN (1) | CN101241859B (ja) |
TW (1) | TWI446436B (ja) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2010004997A1 (ja) * | 2008-07-11 | 2010-01-14 | 東京エレクトロン株式会社 | プラズマ処理装置 |
JP2011134896A (ja) * | 2009-12-24 | 2011-07-07 | Tokyo Electron Ltd | エッチング方法及びエッチング処理装置 |
JP2014158005A (ja) * | 2013-01-21 | 2014-08-28 | Tokyo Electron Ltd | 多層膜をエッチングする方法 |
KR20230057393A (ko) | 2020-09-01 | 2023-04-28 | 도쿄엘렉트론가부시키가이샤 | 에칭 방법 및 에칭 장치 |
Families Citing this family (10)
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US8298959B2 (en) | 2009-06-03 | 2012-10-30 | Applied Materials, Inc. | Method and apparatus for etching |
JP5486883B2 (ja) * | 2009-09-08 | 2014-05-07 | 東京エレクトロン株式会社 | 被処理体の処理方法 |
US8501630B2 (en) * | 2010-09-28 | 2013-08-06 | Tokyo Electron Limited | Selective etch process for silicon nitride |
US8946091B2 (en) * | 2011-04-28 | 2015-02-03 | Lam Research Corporation | Prevention of line bending and tilting for etch with tri-layer mask |
CN102208333A (zh) * | 2011-05-27 | 2011-10-05 | 中微半导体设备(上海)有限公司 | 等离子体刻蚀方法 |
US8603921B2 (en) * | 2011-07-25 | 2013-12-10 | Applied Materials, Inc. | Maintaining mask integrity to form openings in wafers |
JP6945385B2 (ja) * | 2017-08-14 | 2021-10-06 | 東京エレクトロン株式会社 | プラズマ処理方法及びプラズマ処理装置 |
JP2019121750A (ja) * | 2018-01-11 | 2019-07-22 | 東京エレクトロン株式会社 | エッチング方法およびエッチング装置 |
KR101951456B1 (ko) * | 2018-01-23 | 2019-05-20 | 영창케미칼 주식회사 | 반도체 제조 공정에 있어서 미세 실리콘 패턴을 형성하기 위한 신규 식각방법 |
JP7022651B2 (ja) * | 2018-05-28 | 2022-02-18 | 東京エレクトロン株式会社 | 膜をエッチングする方法及びプラズマ処理装置 |
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- 2007-02-06 JP JP2007026880A patent/JP4912907B2/ja not_active Expired - Fee Related
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- 2008-01-31 KR KR1020080010337A patent/KR100924853B1/ko active IP Right Grant
- 2008-01-31 US US12/023,620 patent/US8216485B2/en not_active Expired - Fee Related
- 2008-02-04 TW TW097104349A patent/TWI446436B/zh not_active IP Right Cessation
- 2008-02-05 CN CN2008100086933A patent/CN101241859B/zh not_active Expired - Fee Related
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JP2011134896A (ja) * | 2009-12-24 | 2011-07-07 | Tokyo Electron Ltd | エッチング方法及びエッチング処理装置 |
KR101810970B1 (ko) * | 2009-12-24 | 2017-12-20 | 도쿄엘렉트론가부시키가이샤 | 에칭 방법 및 에칭 처리 장치 |
JP2014158005A (ja) * | 2013-01-21 | 2014-08-28 | Tokyo Electron Ltd | 多層膜をエッチングする方法 |
KR20230057393A (ko) | 2020-09-01 | 2023-04-28 | 도쿄엘렉트론가부시키가이샤 | 에칭 방법 및 에칭 장치 |
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KR100924853B1 (ko) | 2009-11-02 |
KR20080073647A (ko) | 2008-08-11 |
US8216485B2 (en) | 2012-07-10 |
US20080185364A1 (en) | 2008-08-07 |
CN101241859B (zh) | 2010-04-14 |
TW200847270A (en) | 2008-12-01 |
JP4912907B2 (ja) | 2012-04-11 |
TWI446436B (zh) | 2014-07-21 |
CN101241859A (zh) | 2008-08-13 |
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