KR20030002792A - 탄탈륨 옥사이드 캐퍼시터의 형성 방법 - Google Patents
탄탈륨 옥사이드 캐퍼시터의 형성 방법 Download PDFInfo
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- KR20030002792A KR20030002792A KR1020010038501A KR20010038501A KR20030002792A KR 20030002792 A KR20030002792 A KR 20030002792A KR 1020010038501 A KR1020010038501 A KR 1020010038501A KR 20010038501 A KR20010038501 A KR 20010038501A KR 20030002792 A KR20030002792 A KR 20030002792A
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- Prior art keywords
- tantalum
- thin film
- lower electrode
- tantalum oxide
- nitride
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- 238000000034 method Methods 0.000 title claims abstract description 65
- 239000003990 capacitor Substances 0.000 title claims abstract description 34
- 238000004519 manufacturing process Methods 0.000 title description 3
- 239000010409 thin film Substances 0.000 claims abstract description 44
- BPUBBGLMJRNUCC-UHFFFAOYSA-N oxygen(2-);tantalum(5+) Chemical compound [O-2].[O-2].[O-2].[O-2].[O-2].[Ta+5].[Ta+5] BPUBBGLMJRNUCC-UHFFFAOYSA-N 0.000 claims abstract description 43
- 229910001936 tantalum oxide Inorganic materials 0.000 claims abstract description 42
- MZLGASXMSKOWSE-UHFFFAOYSA-N tantalum nitride Chemical compound [Ta]#N MZLGASXMSKOWSE-UHFFFAOYSA-N 0.000 claims abstract description 21
- 229910052760 oxygen Inorganic materials 0.000 claims abstract description 17
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims abstract description 12
- 238000000151 deposition Methods 0.000 claims abstract description 12
- 239000001301 oxygen Substances 0.000 claims abstract description 12
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 claims description 14
- 229910052751 metal Inorganic materials 0.000 claims description 13
- 239000002184 metal Substances 0.000 claims description 13
- 238000005121 nitriding Methods 0.000 claims description 12
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 claims description 10
- 239000012298 atmosphere Substances 0.000 claims description 10
- 229910021420 polycrystalline silicon Inorganic materials 0.000 claims description 10
- 229920005591 polysilicon Polymers 0.000 claims description 10
- 239000010408 film Substances 0.000 claims description 9
- 150000004767 nitrides Chemical class 0.000 claims description 9
- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Chemical compound [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 claims description 9
- 230000003647 oxidation Effects 0.000 claims description 8
- 238000007254 oxidation reaction Methods 0.000 claims description 8
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 7
- 229910021529 ammonia Inorganic materials 0.000 claims description 7
- 238000007736 thin film deposition technique Methods 0.000 claims description 7
- 238000011065 in-situ storage Methods 0.000 claims description 6
- 238000004518 low pressure chemical vapour deposition Methods 0.000 claims description 6
- 229910052786 argon Inorganic materials 0.000 claims description 5
- 230000001590 oxidative effect Effects 0.000 claims description 5
- GUVRBAGPIYLISA-UHFFFAOYSA-N tantalum atom Chemical compound [Ta] GUVRBAGPIYLISA-UHFFFAOYSA-N 0.000 claims description 5
- 238000001704 evaporation Methods 0.000 claims description 4
- 229910052715 tantalum Inorganic materials 0.000 claims description 4
- HAKPHVWPADQDBE-UHFFFAOYSA-N tantalum hydrofluoride Chemical compound F.[Ta] HAKPHVWPADQDBE-UHFFFAOYSA-N 0.000 claims description 4
- NRTOMJZYCJJWKI-UHFFFAOYSA-N Titanium nitride Chemical compound [Ti]#N NRTOMJZYCJJWKI-UHFFFAOYSA-N 0.000 claims description 3
- IVHJCRXBQPGLOV-UHFFFAOYSA-N azanylidynetungsten Chemical compound [W]#N IVHJCRXBQPGLOV-UHFFFAOYSA-N 0.000 claims description 3
- HTXDPTMKBJXEOW-UHFFFAOYSA-N dioxoiridium Chemical compound O=[Ir]=O HTXDPTMKBJXEOW-UHFFFAOYSA-N 0.000 claims description 3
- 229910052741 iridium Inorganic materials 0.000 claims description 3
- GKOZUEZYRPOHIO-UHFFFAOYSA-N iridium atom Chemical compound [Ir] GKOZUEZYRPOHIO-UHFFFAOYSA-N 0.000 claims description 3
- 229910052697 platinum Inorganic materials 0.000 claims description 3
- WOCIAKWEIIZHES-UHFFFAOYSA-N ruthenium(iv) oxide Chemical compound O=[Ru]=O WOCIAKWEIIZHES-UHFFFAOYSA-N 0.000 claims description 3
- WNUPENMBHHEARK-UHFFFAOYSA-N silicon tungsten Chemical compound [Si].[W] WNUPENMBHHEARK-UHFFFAOYSA-N 0.000 claims description 3
- 239000000126 substance Substances 0.000 claims description 3
- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 claims description 3
- 229910052721 tungsten Inorganic materials 0.000 claims description 3
- 239000010937 tungsten Substances 0.000 claims description 3
- 230000008020 evaporation Effects 0.000 claims description 2
- 239000012299 nitrogen atmosphere Substances 0.000 claims description 2
- -1 tantalum hydro fluoride compound Chemical class 0.000 claims description 2
- 239000000463 material Substances 0.000 claims 1
- 238000000231 atomic layer deposition Methods 0.000 abstract description 8
- 239000004065 semiconductor Substances 0.000 description 6
- 238000011066 ex-situ storage Methods 0.000 description 4
- 229910052757 nitrogen Inorganic materials 0.000 description 3
- 238000010926 purge Methods 0.000 description 3
- 238000000427 thin-film deposition Methods 0.000 description 3
- KJTLSVCANCCWHF-UHFFFAOYSA-N Ruthenium Chemical compound [Ru] KJTLSVCANCCWHF-UHFFFAOYSA-N 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- 229910052707 ruthenium Inorganic materials 0.000 description 2
- 150000003482 tantalum compounds Chemical class 0.000 description 2
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000008021 deposition Effects 0.000 description 1
- 230000005684 electric field Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 229910052814 silicon oxide Inorganic materials 0.000 description 1
- 239000010936 titanium Substances 0.000 description 1
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- H01L27/04—Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate including semiconductor components specially adapted for rectifying, oscillating, amplifying or switching and having potential barriers; including integrated passive circuit elements having potential barriers the substrate being a semiconductor body
- H01L27/10—Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate including semiconductor components specially adapted for rectifying, oscillating, amplifying or switching and having potential barriers; including integrated passive circuit elements having potential barriers the substrate being a semiconductor body including a plurality of individual components in a repetitive configuration
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- 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
- H01L21/02104—Forming layers
- H01L21/02107—Forming insulating materials on a substrate
- H01L21/02109—Forming insulating materials on a substrate characterised by the type of layer, e.g. type of material, porous/non-porous, pre-cursors, mixtures or laminates
- H01L21/02112—Forming insulating materials on a substrate characterised by the type of layer, e.g. type of material, porous/non-porous, pre-cursors, mixtures or laminates characterised by the material of the layer
- H01L21/02172—Forming insulating materials on a substrate characterised by the type of layer, e.g. type of material, porous/non-porous, pre-cursors, mixtures or laminates characterised by the material of the layer the material containing at least one metal element, e.g. metal oxides, metal nitrides, metal oxynitrides or metal carbides
- H01L21/02175—Forming insulating materials on a substrate characterised by the type of layer, e.g. type of material, porous/non-porous, pre-cursors, mixtures or laminates characterised by the material of the layer the material containing at least one metal element, e.g. metal oxides, metal nitrides, metal oxynitrides or metal carbides characterised by the metal
- H01L21/02183—Forming insulating materials on a substrate characterised by the type of layer, e.g. type of material, porous/non-porous, pre-cursors, mixtures or laminates characterised by the material of the layer the material containing at least one metal element, e.g. metal oxides, metal nitrides, metal oxynitrides or metal carbides characterised by the metal the material containing tantalum, e.g. Ta2O5
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- H01L29/66—Types of semiconductor device ; Multistep manufacturing processes therefor
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Abstract
Description
Claims (10)
- 하부 전극의 상부를 질화시키는 단계;상기 질화 처리된 막의 상부에 원자층 박막 증착 방법(ALD)을 적용하여, 탄탈륨-나이트라이드 박막(Ta-N)을 증착하는 단계;상기 탄탈륨-나이트라이드 박막을 산소와 반응시켜 산화시킴으로서, 탄탈륨 옥사이드 박막을 형성하는 단계; 및상기 탄탈륨 옥사이드 박막의 상부에 상부 전극을 형성하는 단계를 포함하여 구성됨을 특징으로 하는 탄탈륨 옥사이드 캐퍼시터 형성 방법.
- 제 1 항에 있어서, 하부 전극이 폴리 실리콘으로 이루어진 경우에 상기 질화 단계는 플라즈마를 이용하여 200 내지 600℃의 온도 및 NH3(또는 N2/H2, N2O 분위기)분위기 하에서 하부 전극의 표면을 질화시켜 수행함을 특징으로 하는 탄탈륨 옥사이드 캐퍼시터 형성 방법.
- 제 1 항에 있어서, 하부 전극이 금속으로 이루어진 경우에 상기 질화 단계는 플라즈마를 이용하여 200 내지 450℃의 온도 및 NH3(또는 N2/H2, N2O, O2, H2/O2, N2분위기)분위기 하에서 하부 전극의 표면을 질화시킴으로서 진행함을 특징으로 하는 탄탈륨 옥사이드 캐퍼시터의 형성 방법.
- 제 1 항에 있어서, 상기 탄탈륨-나이트라이드 박막을 증착하는 단계는 탄탈륨 하이드로 플로라이드(TaH2F7) 펄스를 가하여 탄탈륨 원자층을 형성하고, 이를 질소(N2) 또는 아르곤(Ar)으로 퍼지한 후, 다시 암모니아(NH3) 펄스를 가하여 나이트라이드 원자층을 형성함으로서, 진행함을 특징으로 하는 탄탈륨 옥사이드 캐퍼시터의 형성 방법.
- 제 4 항에 있어서, 상기 탄탈륨 하이드로 플로라이드 화합물의 화학 증기는 상기 화합물을 MFC(Mass flow controller)와 같은 유량 조절기를 통해 정량된 양만큼 증발기 또는 증발관으로 공급한 다음 일정량을 150 내지 200 ℃의 온도 범위에서 증발시켜 얻을 수 있다.
- 제 1 항에 있어서, 하부 전극이 폴리 실리콘으로 이루어진 경우에, 상기 산화 공정은 200-600℃의 온도 범위에서 플라즈마를 이용하여 산소를 가함으로서, 진행함을 특징으로 하는 탄탈륨 옥사이드 캐퍼시터의 형성 방법.
- 제 6 항에 있어서, 상기 산화 공정은 저압 화학 기상 증착 챔버 내에서 in-situ 공정으로 진행함을 특징으로 하는 탄탈륨 옥사이드 캐퍼시터의 형성 방법.
- 제 1 항에 있어서, 하부 전극이 금속으로 이루어진 경우에, 상기 산화 공정은 200-450℃의 온도 범위에서 플라즈마를 이용하여 산소를 가함으로서 진행함을 특징으로 하는 탄탈륨 옥사이드 캐퍼시터의 형성 방법.
- 제 8 항에 있어서, 상기 산화 공정은 저압 저압 화학 기상 증착 챔버 내에서 in-situ 공정으로 진행함을 특징으로 하는 탄탈륨 옥사이드 캐퍼시터의 형성 방법.
- 제 1 항 있어서, 상기 상부 전극은 폴리 실리콘(Poly Si), 티타늄 나이트라이드(TiN), 탄탈륨 나이트라이드(TaN), 텅스텐(W), 텅스텐 나이트라이드 (WN), 텅스텐 실리사이드 (WSi), 루테니움 (RU), 루테니움 옥사이드(RuO2), 이리듐 (Ir), 이리듐 옥사이드(IrO2), 백금(Pt) 으로 이루어진 그룹에서 선택된 하나의 물질을 단독 또는 적층 구조로 증착하여 형성함을 특징으로 하는 탄탈륨 옥사이드 캐퍼시터의 형성 방법.
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR10-2001-0038501A KR100400252B1 (ko) | 2001-06-29 | 2001-06-29 | 탄탈륨 옥사이드 캐퍼시터의 형성 방법 |
JP2002186652A JP2003092361A (ja) | 2001-06-29 | 2002-06-26 | 酸化タンタルコンデンサーの形成方法 |
US10/184,542 US6551873B2 (en) | 2001-06-29 | 2002-06-28 | Method for forming a tantalum oxide capacitor |
TW091114402A TW546742B (en) | 2001-06-29 | 2002-06-28 | Method for forming a tantalum oxide capacitor |
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KR10-2001-0038501A KR100400252B1 (ko) | 2001-06-29 | 2001-06-29 | 탄탈륨 옥사이드 캐퍼시터의 형성 방법 |
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KR20000013654A (ko) * | 1998-08-12 | 2000-03-06 | 윤종용 | 원자층 증착 방법으로 형성한 알루미나/알루미늄나이트라이드복합 유전체막을 갖는 캐패시터와 그제조 방법 |
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KR20010017820A (ko) * | 1999-08-14 | 2001-03-05 | 윤종용 | 반도체 소자 및 그 제조방법 |
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KR100407381B1 (ko) * | 2001-06-29 | 2003-12-01 | 주식회사 하이닉스반도체 | 반도체 소자의 커패시터 형성방법 |
US6461914B1 (en) * | 2001-08-29 | 2002-10-08 | Motorola, Inc. | Process for making a MIM capacitor |
-
2001
- 2001-06-29 KR KR10-2001-0038501A patent/KR100400252B1/ko not_active IP Right Cessation
-
2002
- 2002-06-26 JP JP2002186652A patent/JP2003092361A/ja active Pending
- 2002-06-28 US US10/184,542 patent/US6551873B2/en not_active Expired - Lifetime
- 2002-06-28 TW TW091114402A patent/TW546742B/zh not_active IP Right Cessation
Cited By (4)
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KR20030044140A (ko) * | 2001-11-28 | 2003-06-09 | 주식회사 하이닉스반도체 | 탄탈륨 나이트라이드층 형성 방법 및 이를 적용한 반도체소자 |
KR100942146B1 (ko) * | 2007-10-05 | 2010-02-17 | 주식회사 실트론 | 펄스 가스 유동 증착방법, 그 장치 및 이를 이용한에피택셜 웨이퍼의 제작 방법 |
KR101590720B1 (ko) * | 2014-08-25 | 2016-02-03 | 고려대학교 산학협력단 | 원자층 증착 공정을 이용한 금속 인산화물 박막의 형성 방법 |
KR101651512B1 (ko) * | 2015-06-01 | 2016-08-29 | 한국과학기술연구원 | 백금족 박막의 원자층 증착방법 |
Also Published As
Publication number | Publication date |
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US20030001193A1 (en) | 2003-01-02 |
TW546742B (en) | 2003-08-11 |
US6551873B2 (en) | 2003-04-22 |
KR100400252B1 (ko) | 2003-10-01 |
JP2003092361A (ja) | 2003-03-28 |
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