KR101001763B1 - 유전체 재료 내부로 개구부를 형성하는 방법 - Google Patents
유전체 재료 내부로 개구부를 형성하는 방법 Download PDFInfo
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- KR101001763B1 KR101001763B1 KR1020087007290A KR20087007290A KR101001763B1 KR 101001763 B1 KR101001763 B1 KR 101001763B1 KR 1020087007290 A KR1020087007290 A KR 1020087007290A KR 20087007290 A KR20087007290 A KR 20087007290A KR 101001763 B1 KR101001763 B1 KR 101001763B1
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- 239000003989 dielectric material Substances 0.000 title claims abstract description 67
- 238000000034 method Methods 0.000 title claims abstract description 50
- 239000004020 conductor Substances 0.000 claims abstract description 48
- 238000001020 plasma etching Methods 0.000 claims abstract description 16
- 239000000463 material Substances 0.000 claims description 73
- 238000005530 etching Methods 0.000 claims description 33
- 239000000758 substrate Substances 0.000 claims description 30
- 239000003990 capacitor Substances 0.000 claims description 20
- 239000000203 mixture Substances 0.000 claims description 7
- 239000002131 composite material Substances 0.000 claims description 6
- 230000008569 process Effects 0.000 description 28
- 239000012634 fragment Substances 0.000 description 20
- 239000004065 semiconductor Substances 0.000 description 13
- 238000010586 diagram Methods 0.000 description 8
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 6
- 238000004519 manufacturing process Methods 0.000 description 6
- 238000003860 storage Methods 0.000 description 6
- 238000004891 communication Methods 0.000 description 5
- 229920002120 photoresistant polymer Polymers 0.000 description 5
- 239000005380 borophosphosilicate glass Substances 0.000 description 4
- NRTOMJZYCJJWKI-UHFFFAOYSA-N Titanium nitride Chemical compound [Ti]#N NRTOMJZYCJJWKI-UHFFFAOYSA-N 0.000 description 3
- 229910003481 amorphous carbon Inorganic materials 0.000 description 3
- 150000001875 compounds Chemical class 0.000 description 3
- 230000005669 field effect Effects 0.000 description 3
- 229910021420 polycrystalline silicon Inorganic materials 0.000 description 3
- 229920005591 polysilicon Polymers 0.000 description 3
- 238000012545 processing Methods 0.000 description 3
- 235000012239 silicon dioxide Nutrition 0.000 description 3
- 239000000377 silicon dioxide Substances 0.000 description 3
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 2
- 229910052782 aluminium Inorganic materials 0.000 description 2
- 150000001768 cations Chemical class 0.000 description 2
- 239000000460 chlorine Substances 0.000 description 2
- 239000011810 insulating material Substances 0.000 description 2
- 230000003993 interaction Effects 0.000 description 2
- 229910021421 monocrystalline silicon Inorganic materials 0.000 description 2
- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 description 2
- 229910052721 tungsten Inorganic materials 0.000 description 2
- 239000010937 tungsten Substances 0.000 description 2
- ZOXJGFHDIHLPTG-UHFFFAOYSA-N Boron Chemical compound [B] ZOXJGFHDIHLPTG-UHFFFAOYSA-N 0.000 description 1
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 description 1
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 1
- 229910052581 Si3N4 Inorganic materials 0.000 description 1
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 1
- BOTDANWDWHJENH-UHFFFAOYSA-N Tetraethyl orthosilicate Chemical group CCO[Si](OCC)(OCC)OCC BOTDANWDWHJENH-UHFFFAOYSA-N 0.000 description 1
- 230000002776 aggregation Effects 0.000 description 1
- 238000004220 aggregation Methods 0.000 description 1
- 238000004380 ashing Methods 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 229910052796 boron Inorganic materials 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 229910052801 chlorine Inorganic materials 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000009977 dual effect Effects 0.000 description 1
- 239000012777 electrically insulating material Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- -1 fluorocarbon compound Chemical class 0.000 description 1
- 230000006870 function Effects 0.000 description 1
- YBMRDBCBODYGJE-UHFFFAOYSA-N germanium oxide Inorganic materials O=[Ge]=O YBMRDBCBODYGJE-UHFFFAOYSA-N 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 229910000449 hafnium oxide Inorganic materials 0.000 description 1
- WIHZLLGSGQNAGK-UHFFFAOYSA-N hafnium(4+);oxygen(2-) Chemical compound [O-2].[O-2].[Hf+4] WIHZLLGSGQNAGK-UHFFFAOYSA-N 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
- 239000011261 inert gas Substances 0.000 description 1
- 239000012212 insulator Substances 0.000 description 1
- 230000009021 linear effect Effects 0.000 description 1
- 238000001465 metallisation Methods 0.000 description 1
- TWNQGVIAIRXVLR-UHFFFAOYSA-N oxo(oxoalumanyloxy)alumane Chemical compound O=[Al]O[Al]=O TWNQGVIAIRXVLR-UHFFFAOYSA-N 0.000 description 1
- PVADDRMAFCOOPC-UHFFFAOYSA-N oxogermanium Chemical compound [Ge]=O PVADDRMAFCOOPC-UHFFFAOYSA-N 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 229910052698 phosphorus Inorganic materials 0.000 description 1
- 239000011574 phosphorus Substances 0.000 description 1
- 239000005360 phosphosilicate glass Substances 0.000 description 1
- 238000000206 photolithography Methods 0.000 description 1
- 239000002243 precursor Substances 0.000 description 1
- 238000004886 process control Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
- HBMJWWWQQXIZIP-UHFFFAOYSA-N silicon carbide Chemical compound [Si+]#[C-] HBMJWWWQQXIZIP-UHFFFAOYSA-N 0.000 description 1
- 229910010271 silicon carbide Inorganic materials 0.000 description 1
- HQVNEWCFYHHQES-UHFFFAOYSA-N silicon nitride Chemical compound N12[Si]34N5[Si]62N3[Si]51N64 HQVNEWCFYHHQES-UHFFFAOYSA-N 0.000 description 1
- 125000006850 spacer group Chemical group 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 230000002123 temporal effect Effects 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
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Abstract
Description
Claims (65)
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- 기재의 유전체 재료 상부에 패턴화된 마스크 재료를 형성하는 단계로서, 여기서 상기 마스크 재료는 상이한 조성물 재료인 외층 및 내층을 포함하는 것인 단계;상기 패턴화된 마스크 재료를 마스크로 사용하여 상기 유전체 재료 내부로 개구부를 부분적으로 제1 에칭하는 단계로서, 여기서 상기 개구부는 마주보는 측벽을 포함하는 것인 단계;상기 제1 에칭 후, 상기 개구부와 적어도 인접한 상기 내층의 적어도 일부를 남겨두고 상기 외층 전부를 제거하는 단계;상기 제거 후, 상기 내층의 남아 있는 부분 상부에 그리고 상기 개구부 내부의 상기 마주보는 측벽의 적어도 각각의 부분 상부에 그리고 상기 개구부를 덜 채우도록 전기적 도전성 재료를 도포하는 단계;상기 전기적 도전성 재료가 상기 개구부 내의 상기 마주보는 측벽의 상기 각각의 부분 상에 있으며 그리고 상기 개구부를 덜 채우고, 상기 유전체 재료 내부로 상기 개구부가 더 깊게 연장되도록 상기 유전체 재료를 제2 에칭하는 단계로서, 여기서 상기 제2 에칭은 플라즈마 에칭을 포함하는 것인 단계; 및상기 플라즈마 에칭 후 상기 개구부 내 상기 각각의 측벽 부분을 라이닝한 전기적 도전성 재료 상부에 또 다른 재료를 도포하는 단계로서, 집적 회로를 형성하는 단계를 포함하며, 상기 또 다른 재료 및 상기 각각의 측벽 부분을 라이닝한 상기 전기적 도전성 재료는 상기 집적회로의 부분을 포함하는 것인 단계를 포함하는 유전체 재료 내부로 개구부를 형성하는 방법.
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- 기재의 유전체 재료 상부에 패턴화된 마스크 재료를 형성하는 단계로서, 여기서 상기 마스크 재료는 상이한 조성물 재료인 외층 및 내층을 포함하는 것인 단계;상기 패턴화된 마스크 재료를 마스크로 사용하여 상기 유전체 재료 내부로 개구부를 부분적으로 제1 에칭하는 단계로서, 여기서 상기 개구부는 마주보는 측벽을 포함하는 것인 단계;상기 제1 에칭 후, 상기 개구부와 적어도 인접한 상기 내층의 적어도 일부를 남겨두고 상기 외층 전부를 제거하는 단계;상기 제거 후, 상기 내층의 남아 있는 부분 상부에 그리고 상기 개구부 내부의 상기 마주보는 측벽의 적어도 각각의 부분 상부에 그리고 상기 개구부를 덜 채우도록 전기적 도전성 재료를 도포하는 단계;상기 전기적 도전성 재료가 상기 개구부 내의 상기 마주보는 측벽의 상기 각각의 부분 상에 있으며 그리고 상기 개구부를 덜 채우고, 상기 유전체 재료 내부로 상기 개구부가 더 깊게 연장되도록 상기 유전체 재료를 제2 에칭하는 단계로서, 여기서 상기 제2 에칭은 플라즈마 에칭을 포함하는 것인 단계; 및상기 제2 에칭 후 상기 개구부 내 상기 각각의 측벽 부분 상부에 수용된 전기적 도전성 재료 상부에 추가적인 전기적 도전성 재료를 도포하는 단계로서, 집적 회로를 형성하는 단계를 포함하며, 상기 추가적인 전기적 도전성 재료 및 상기 각각의 측벽 부분 상부에 수용된 상기 전기적 도전성 재료는 상기 집적회로의 부분을 포함하는 것을 특징으로 하는 유전체 재료 내부로 개구부를 형성하는 방법.
- 청구항 34에 있어서, 상기 추가적인 전기적 도전성 재료는 상기 각각의 측벽 부분 상부에 수용된 전기적 도전성 재료와 동일한 조성인 것을 특징으로 하는 유전체 재료 내부로 개구부를 형성하는 방법.
- 청구항 34에 있어서, 상기 추가적인 전기적 도전성 재료는 상기 각각의 측벽 부분 상부에 수용된 전기적 도전성 재료와 상이한 조성인 것을 특징으로 하는 유전체 재료 내부로 개구부를 형성하는 방법.
- 청구항 34에 있어서, 상기 추가적인 전기적 도전성 재료 및 상기 각각의 측벽 부분을 라이닝한 상기 전기적 도전성 재료를, 상기 연장된 개구부 내에 적어도 부분적으로 수용된 커패시터 전극 내부로 형성하는 것을 포함하는 것을 특징으로 하는 유전체 재료 내부로 개구부를 형성하는 방법.
- 삭제
- 기재의 유전체 재료 상부에 패턴화된 마스크 재료를 형성하는 단계로서, 여기서 상기 마스크 재료는 상이한 조성물 재료인 외층 및 내층을 포함하는 것인 단계;상기 패턴화된 마스크 재료를 마스크로 사용하여 상기 유전체 재료 내부로 개구부를 부분적으로 제1 에칭하는 단계로서, 여기서 상기 개구부는 마주보는 측벽을 포함하는 것인 단계;상기 제1 에칭 후, 상기 개구부와 적어도 인접한 상기 내층의 적어도 일부를 남겨두고 상기 외층 전부를 제거하는 단계;상기 제거 후, 상기 내층의 남아 있는 부분 상부에 그리고 상기 개구부 내부의 상기 마주보는 측벽의 적어도 각각의 부분 상부에 그리고 상기 개구부를 덜 채우도록 전기적 도전성 재료를 도포하는 단계;상기 전기적 도전성 재료가 상기 개구부 내의 상기 마주보는 측벽의 상기 각각의 부분 상에 있으며 그리고 상기 개구부를 덜 채우고, 상기 유전체 재료 내부로 상기 개구부가 더 깊게 연장되도록 상기 유전체 재료를 제2 에칭하는 단계로서, 여기서 상기 제2 에칭은 플라즈마 에칭을 포함하고, 상기 제2 에칭은 상기 유전체 재료를 완전히 통해 상기 개구부가 연장되도록 하지 않는 것을 특징으로 하는 유전체 재료 내부로 개구부를 형성하는 방법.
- 청구항 39에 있어서, 상기 제2 에칭 후, 상기 연장된 개구부 측벽의 최저 부분을 전기적 도전성 재료로 라이닝하고, 그 다음에 상기 유전체 재료 내에 상기 개구부가 더 깊이 추가로 연장되도록 상기 유전체 재료를 플라즈마 에칭하는 것을 포함하는 것을 특징으로 하는 유전체 재료 내부로 개구부를 형성하는 방법.
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US11/217,905 US7419913B2 (en) | 2005-09-01 | 2005-09-01 | Methods of forming openings into dielectric material |
US11/217,905 | 2005-09-01 |
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KR20080049070A KR20080049070A (ko) | 2008-06-03 |
KR101001763B1 true KR101001763B1 (ko) | 2010-12-15 |
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US (1) | US7419913B2 (ko) |
EP (1) | EP1920457A2 (ko) |
KR (1) | KR101001763B1 (ko) |
CN (1) | CN101366102B (ko) |
TW (1) | TWI323914B (ko) |
WO (1) | WO2007030332A2 (ko) |
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US7419913B2 (en) | 2005-09-01 | 2008-09-02 | Micron Technology, Inc. | Methods of forming openings into dielectric material |
KR100865709B1 (ko) * | 2007-06-27 | 2008-10-29 | 주식회사 하이닉스반도체 | 원통형 전하저장전극을 구비하는 캐패시터 제조 방법 |
DE102007035832B4 (de) * | 2007-07-31 | 2012-03-29 | Globalfoundries Dresden Module One Limited Liability Company & Co. Kg | Verfahren zur Herstellung eines SOI-Halbleiterbauelements und Halbleiterbauelement mit Grabenkondensator |
KR101559777B1 (ko) * | 2008-11-28 | 2015-10-13 | 엘지전자 주식회사 | 이동 단말기 및 이것의 방송 제어 방법 |
US9105697B2 (en) * | 2013-12-11 | 2015-08-11 | Taiwan Semiconductor Manufacturing Company, Ltd. | Trench formation using rounded hard mask |
US10903109B2 (en) * | 2017-12-29 | 2021-01-26 | Micron Technology, Inc. | Methods of forming high aspect ratio openings and methods of forming high aspect ratio features |
CN112928070B (zh) * | 2021-03-19 | 2023-06-06 | 长鑫存储技术有限公司 | 存储器的制作方法及存储器 |
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US4484979A (en) * | 1984-04-16 | 1984-11-27 | At&T Bell Laboratories | Two-step anisotropic etching process for patterning a layer without penetrating through an underlying thinner layer |
US5380546A (en) * | 1993-06-09 | 1995-01-10 | Microelectronics And Computer Technology Corporation | Multilevel metallization process for electronic components |
US6358837B1 (en) * | 1998-03-31 | 2002-03-19 | Lsi Logic Corporation | Method of electrically connecting and isolating components with vertical elements extending between interconnect layers in an integrated circuit |
CN1241805A (zh) * | 1998-07-13 | 2000-01-19 | 日本电气株式会社 | 半导体器件及其制造方法 |
US6258707B1 (en) | 1999-01-07 | 2001-07-10 | International Business Machines Corporation | Triple damascence tungsten-copper interconnect structure |
DE19935130C1 (de) * | 1999-07-27 | 2001-02-22 | Siemens Ag | Verfahren zur Herstellung eines Kontaktloches für ein Halbleiterspeicherbauelement |
US6730609B2 (en) | 2001-10-09 | 2004-05-04 | Micron Technology, Inc. | Etch aided by electrically shorting upper and lower sidewall portions during the formation of a semiconductor device |
EP1306894A1 (en) | 2001-10-19 | 2003-05-02 | Infineon Technologies AG | A method of forming a silicon dioxide layer on a curved Si surface |
US6969685B1 (en) * | 2002-09-18 | 2005-11-29 | Lam Research Corporation | Etching a dielectric layer in an integrated circuit structure having a metal hard mask layer |
US7074727B2 (en) * | 2003-07-09 | 2006-07-11 | Taiwan Semiconductor Manufacturing Company, Ltd. | Process for improving dielectric properties in low-k organosilicate dielectric material |
US6933192B1 (en) | 2004-05-07 | 2005-08-23 | International Business Machines Corporation | Method for fabricating a trench having a buried dielectric collar |
US7419913B2 (en) | 2005-09-01 | 2008-09-02 | Micron Technology, Inc. | Methods of forming openings into dielectric material |
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CN101366102A (zh) | 2009-02-11 |
US7419913B2 (en) | 2008-09-02 |
WO2007030332A3 (en) | 2007-04-26 |
WO2007030332A2 (en) | 2007-03-15 |
TW200715399A (en) | 2007-04-16 |
EP1920457A2 (en) | 2008-05-14 |
TWI323914B (en) | 2010-04-21 |
US20070049037A1 (en) | 2007-03-01 |
CN101366102B (zh) | 2010-10-06 |
KR20080049070A (ko) | 2008-06-03 |
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