KR101656955B1 - 트랜지스터, 집적 회로 및 그 제조 방법 - Google Patents
트랜지스터, 집적 회로 및 그 제조 방법 Download PDFInfo
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- KR101656955B1 KR101656955B1 KR1020140186025A KR20140186025A KR101656955B1 KR 101656955 B1 KR101656955 B1 KR 101656955B1 KR 1020140186025 A KR1020140186025 A KR 1020140186025A KR 20140186025 A KR20140186025 A KR 20140186025A KR 101656955 B1 KR101656955 B1 KR 101656955B1
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- silicide
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- 238000004519 manufacturing process Methods 0.000 title claims abstract description 37
- 239000000758 substrate Substances 0.000 claims abstract description 70
- 239000004065 semiconductor Substances 0.000 claims abstract description 57
- 238000000034 method Methods 0.000 claims abstract description 37
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- 229910021332 silicide Inorganic materials 0.000 claims description 86
- FVBUAEGBCNSCDD-UHFFFAOYSA-N silicide(4-) Chemical compound [Si-4] FVBUAEGBCNSCDD-UHFFFAOYSA-N 0.000 claims description 86
- 238000002161 passivation Methods 0.000 claims description 43
- 239000011229 interlayer Substances 0.000 claims description 22
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 claims description 18
- 150000002739 metals Chemical class 0.000 claims description 18
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- 239000010941 cobalt Substances 0.000 claims description 16
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- 239000010936 titanium Substances 0.000 claims description 12
- UGACIEPFGXRWCH-UHFFFAOYSA-N [Si].[Ti] Chemical compound [Si].[Ti] UGACIEPFGXRWCH-UHFFFAOYSA-N 0.000 claims description 10
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- NRTOMJZYCJJWKI-UHFFFAOYSA-N Titanium nitride Chemical compound [Ti]#N NRTOMJZYCJJWKI-UHFFFAOYSA-N 0.000 claims description 6
- 229910052759 nickel Inorganic materials 0.000 claims description 6
- PEUPIGGLJVUNEU-UHFFFAOYSA-N nickel silicon Chemical compound [Si].[Ni] PEUPIGGLJVUNEU-UHFFFAOYSA-N 0.000 claims description 6
- 238000005498 polishing Methods 0.000 claims description 6
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- 229910052721 tungsten Inorganic materials 0.000 claims description 6
- 239000010937 tungsten Substances 0.000 claims description 6
- 229910052782 aluminium Inorganic materials 0.000 claims description 5
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- MZLGASXMSKOWSE-UHFFFAOYSA-N tantalum nitride Chemical compound [Ta]#N MZLGASXMSKOWSE-UHFFFAOYSA-N 0.000 claims description 5
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- 229910052581 Si3N4 Inorganic materials 0.000 description 7
- 238000000231 atomic layer deposition Methods 0.000 description 7
- HQVNEWCFYHHQES-UHFFFAOYSA-N silicon nitride Chemical compound N12[Si]34N5[Si]62N3[Si]51N64 HQVNEWCFYHHQES-UHFFFAOYSA-N 0.000 description 7
- 238000004544 sputter deposition Methods 0.000 description 7
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 6
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- 238000000137 annealing Methods 0.000 description 6
- 238000010586 diagram Methods 0.000 description 6
- 238000004518 low pressure chemical vapour deposition Methods 0.000 description 6
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- 229910004298 SiO 2 Inorganic materials 0.000 description 5
- 238000000623 plasma-assisted chemical vapour deposition Methods 0.000 description 5
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 4
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- CJNBYAVZURUTKZ-UHFFFAOYSA-N hafnium(iv) oxide Chemical compound O=[Hf]=O CJNBYAVZURUTKZ-UHFFFAOYSA-N 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
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- GJCOSYZMQJWQCA-UHFFFAOYSA-N 9H-xanthene Chemical compound C1=CC=C2CC3=CC=CC=C3OC2=C1 GJCOSYZMQJWQCA-UHFFFAOYSA-N 0.000 description 1
- 229910018072 Al 2 O 3 Inorganic materials 0.000 description 1
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 229910003855 HfAlO Inorganic materials 0.000 description 1
- 229910002367 SrTiO Inorganic materials 0.000 description 1
- 229910010413 TiO 2 Inorganic materials 0.000 description 1
- HMDDXIMCDZRSNE-UHFFFAOYSA-N [C].[Si] Chemical compound [C].[Si] HMDDXIMCDZRSNE-UHFFFAOYSA-N 0.000 description 1
- QNGHKVHDQLMMRP-UHFFFAOYSA-N [O-2].[Ta+5].[Ba+2] Chemical compound [O-2].[Ta+5].[Ba+2] QNGHKVHDQLMMRP-UHFFFAOYSA-N 0.000 description 1
- 230000004075 alteration Effects 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
- 239000005380 borophosphosilicate glass Substances 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 239000002019 doping agent Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005530 etching Methods 0.000 description 1
- 230000009969 flowable effect Effects 0.000 description 1
- 229910044991 metal oxide Inorganic materials 0.000 description 1
- 150000004706 metal oxides Chemical class 0.000 description 1
- 229910021421 monocrystalline silicon Inorganic materials 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 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 description 1
- RVTZCBVAJQQJTK-UHFFFAOYSA-N oxygen(2-);zirconium(4+) Chemical compound [O-2].[O-2].[Zr+4] RVTZCBVAJQQJTK-UHFFFAOYSA-N 0.000 description 1
- 238000007517 polishing process Methods 0.000 description 1
- 229920000412 polyarylene Polymers 0.000 description 1
- 239000005368 silicate glass Substances 0.000 description 1
- 150000003376 silicon Chemical class 0.000 description 1
- 235000012239 silicon dioxide Nutrition 0.000 description 1
- 239000000377 silicon dioxide Substances 0.000 description 1
- LIVNPJMFVYWSIS-UHFFFAOYSA-N silicon monoxide Chemical class [Si-]#[O+] LIVNPJMFVYWSIS-UHFFFAOYSA-N 0.000 description 1
- -1 silsesquioxane Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 229920001187 thermosetting polymer Polymers 0.000 description 1
- 229920001285 xanthan gum Polymers 0.000 description 1
- 229910001928 zirconium oxide Inorganic materials 0.000 description 1
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- 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
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- H10D84/83—Integrated devices formed in or on semiconductor substrates that comprise only semiconducting layers, e.g. on Si wafers or on GaAs-on-Si wafers characterised by the integration of at least one component covered by groups H10D12/00 or H10D30/00, e.g. integration of IGFETs of only field-effect components of only insulated-gate FETs [IGFET]
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Abstract
Description
도 1은 본 개시내용의 다양한 실시형태에 따른 집적 회로의 적어도 일부의 개략도이다.
도 2는 본 개시내용의 다양한 실시형태에 따른 집적 회로의 제조 방법을 나타내는 흐름도이다.
도 3은 본 개시내용의 다양한 실시형태에 따른 집적 회로의 제조 방법의 중간 단계에서의 기판의 적어도 일부의 개략도이다.
도 4는 본 개시내용의 다양한 실시형태에 따른 집적 회로의 제조 방법의 후속 단계에서의 도 3에 도시한 기판의 개략도이다.
도 5는 본 개시내용의 다양한 실시형태에 따른 집적 회로의 제조 방법의 후속 단계에서의 도 4에 도시한 기판의 개략도이다.
도 6은 본 개시내용의 다양한 실시형태에 따른 집적 회로의 제조 방법의 후속 단계에서의 도 5에 도시한 기판의 개략도이다.
도 7은 본 개시내용의 다양한 실시형태에 따른 집적 회로의 제조 방법의 후속 단계에서의 도 6에 도시한 기판의 개략도이다.
도 8은 본 개시내용의 다양한 실시형태에 따른 집적 회로의 제조 방법의 후속 단계에서의 도 7에 도시한 기판의 개략도이다.
도 9은 본 개시내용의 다양한 실시형태에 따른 집적 회로의 제조 방법의 후속 단계에서의 도 8에 도시한 기판의 개략도이다.
도 10은 본 개시내용의 다양한 실시형태에 따른 집적 회로의 제조 방법의 후속 단계에서의 도 9에 도시한 기판의 개략도이다.
도 11은 본 개시내용의 다양한 실시형태에 따른 집적 회로의 제조 방법의 후속 단계에서의 도 10에 도시한 기판의 개략도이다.
도 12는 본 개시내용의 다양한 실시형태에 따른 집적 회로의 제조 방법의 후속 단계에서의 도 11에 도시한 기판의 개략도이다.
도 13은 본 개시내용의 다양한 실시형태에 따른 집적 회로의 제조 방법의 후속 단계에서의 도 12에 도시한 기판의 개략도이다.
도 14는 본 개시내용의 다양한 실시형태에 따른 집적 회로의 제조 방법의 후속 단계에서의 도 3에 도시한 기판의 개략도이다.
도 15는 본 개시내용의 다양한 실시형태에 따른 집적 회로의 적어도 일부의 개략도이다.
Claims (10)
- 트랜지스터에 있어서,
기판 내에 배치되는 소스 전극과,
상기 소스 전극에 수직으로 연장되는 적어도 하나의 반도체 채널과,
상기 반도체 채널을 둘러싸는 게이트 전극과,
상기 반도체 채널의 상단 상에 배치되는 드레인 전극과,
상기 드레인 전극 상에 배치되는 드레인 패드―상기 드레인 패드는 다중 도전성층들을 포함함―와,
상기 드레인 패드를 캡슐화하는 패시베이션층을 포함하고, 상기 패시베이션층은 상기 드레인 패드의 상부 표면으로부터 상기 드레인 패드의 측벽까지 연장하되 상기 드레인 패드의 측벽 전체를 덮는 것인, 트랜지스터. - 청구항 1에 있어서, 상기 드레인 패드는,
상기 드레인 전극과 직접 접촉하는 실리사이드층과,
상기 실리사이드층 상에 배치되는 캡핑층과,
상기 캡핑층 상에 배치되는 컨택 금속층
을 포함하는 것인 트랜지스터. - 청구항 2에 있어서, 상기 실리사이드층은 티타늄 실리사이드(TiSi), 니켈 실리사이드(NiSi), 코발트 실리사이드(CoSi), 또는 이들의 조합들을 포함하는 것인 트랜지스터.
- 청구항 2에 있어서, 상기 캡핑층은 질화티탄(TiN), 질화탄탈(TaN), 또는 이들의 조합들을 포함하는 것인 트랜지스터.
- 청구항 2에 있어서, 상기 컨택 금속층은 텅스텐, 알루미늄, 코발트, 또는 이들의 조합들을 포함하는 것인 트랜지스터.
- 청구항 2에 있어서, 상기 드레인 패드는 상기 실리사이드층과 상기 캡핑층 사이에 배치된 금속층을 더 포함하는 것인 트랜지스터.
- 청구항 6에 있어서, 상기 금속층은 티타늄(Ti), 니켈(Ni), 코발트(Co), 또는 이들의 조합들을 포함하는 것인 트랜지스터.
- 삭제
- 집적 회로에 있어서,
기판 상에 배치되는 적어도 하나의 n형 트랜지스터와,
상기 기판 상에 배치되고 상기 n형 트랜지스터에 인접한 적어도 하나의 p형 트랜지스터―상기 n형 트랜지스터 및 상기 p형 트랜지스터는 각각,
상기 기판 내에 배치되는 소스 전극과,
상기 소스 전극에 수직으로 연장되는 적어도 하나의 반도체 채널과,
상기 반도체 채널을 둘러싸는 게이트 전극과,
상기 반도체 채널의 상단 상에 배치되는 드레인 전극과,
상기 드레인 전극 상에 배치되는 드레인 패드를 포함하고, 상기 드레인 패드는 다중 도전성층을 포함함―와,
상기 n형 트랜지스터, 상기 p형 트랜지스터, 및 상기 기판을 덮는 층간 유전체와,
상기 층간 유전체 내에 배치되는 복수의 컨택 금속들―상기 복수의 컨택 금속들은 각각 상기 n형 트랜지스터 및 상기 p형 트랜지스터의 소스 전극, 게이트 전극 및 드레인 패드와 직접 접촉함―과,
상기 드레인 패드를 캡슐화하는 패시베이션층을 포함하고, 상기 패시베이션층은 상기 드레인 패드의 상부 표면으로부터 상기 드레인 패드의 측벽까지 연장하되 상기 드레인 패드의 측벽 전체를 덮는 것인, 집적 회로. - 집적 회로 제조 방법에 있어서,
적어도 하나의 n형 트랜지스터와 적어도 하나의 p형 트랜지스터를 갖는 기판을 수용하는 단계로서, 상기 n형 트랜지스터 및 상기 p형 트랜지스터의 각각은 상기 기판 내에 배치되는 소스 전극과, 상기 소스 전극에 수직으로 연장되는 적어도 하나의 반도체 채널과, 상기 반도체 채널을 둘러싸는 게이트 전극과, 상기 반도체 채널의 상단 상에 배치되는 드레인 전극을 포함하는 것인 기판 수용 단계와,
상기 n형 트랜지스터 및 상기 p형 트랜지스터의 드레인 전극들을 덮는 실리사이드층과, 캡핑층을 형성하는 단계로서, 상기 캡핑층은 상기 실리사이드층 상에 형성되는 것인 실리사이드층과 캡핍층 형성 단계와,
상기 캡핑층을 덮는 금속층을 형성하는 단계와,
상기 금속층을 덮는 제1 패시베이션층을 형성하는 단계와,
상기 n형 트랜지스터 및 상기 p형 트랜지스터의 드레인 전극들 상에 배치되는 각각의 드레인 패드들을 만들기 위해 상기 실리사이드층, 상기 캡핑층, 상기 금속층, 및 상기 제1 패시베이션층을 관통하는 개구를 형성하는 단계와,
상기 드레인 패드들의 측벽 전체를 덮는 제2 패시베이션층을 형성하는 단계로서, 상기 제1 및 제2 패시베이션층은 상기 드레인 패드들을 캡슐화하는 것인, 상기 제2 패시베이션층 형성 단계와,
상기 드레인 패드들의 측벽들 사이의 갭을 채우고 상기 제1 패시베이션층을 덮기 위하여 제1 산화물층을 형성하는 단계와,
상기 제1 산화물층을 연마하는 단계로서, 연마는 상기 제1 패시베이션층에서 정지되는 것인 연마 단계와,
상기 n형 트랜지스터, 상기 p형 트랜지스터, 및 상기 기판을 덮는 층간 유전체를 형성하는 단계와,
상기 층간 유전체 내에 배치되는 복수의 컨택 금속들을 형성하는 단계를 포함하고,
상기 복수의 컨택 금속들은 각각 상기 n형 트랜지스터 및 상기 p형 트랜지스터의 소스 전극, 게이트 전극, 및 드레인 패드와 직접 접촉하는 것인 집적 회로 제조 방법.
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