KR102720155B1 - 집적회로 소자 및 이의 제조 방법 - Google Patents
집적회로 소자 및 이의 제조 방법 Download PDFInfo
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- KR102720155B1 KR102720155B1 KR1020190114366A KR20190114366A KR102720155B1 KR 102720155 B1 KR102720155 B1 KR 102720155B1 KR 1020190114366 A KR1020190114366 A KR 1020190114366A KR 20190114366 A KR20190114366 A KR 20190114366A KR 102720155 B1 KR102720155 B1 KR 102720155B1
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- gate electrode
- semiconductor layer
- semiconductor
- main gate
- integrated circuit
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- 238000004519 manufacturing process Methods 0.000 title description 6
- 239000004065 semiconductor Substances 0.000 claims abstract description 201
- 125000006850 spacer group Chemical group 0.000 claims abstract description 100
- 239000000758 substrate Substances 0.000 claims abstract description 39
- 229910052732 germanium Inorganic materials 0.000 claims description 11
- GNPVGFCGXDBREM-UHFFFAOYSA-N germanium atom Chemical compound [Ge] GNPVGFCGXDBREM-UHFFFAOYSA-N 0.000 claims description 11
- 229910000577 Silicon-germanium Inorganic materials 0.000 claims description 9
- 239000012535 impurity Substances 0.000 claims description 5
- LEVVHYCKPQWKOP-UHFFFAOYSA-N [Si].[Ge] Chemical compound [Si].[Ge] LEVVHYCKPQWKOP-UHFFFAOYSA-N 0.000 claims 1
- 238000000034 method Methods 0.000 description 40
- 238000002955 isolation Methods 0.000 description 27
- 239000000463 material Substances 0.000 description 19
- 238000005530 etching Methods 0.000 description 16
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 15
- 229910052710 silicon Inorganic materials 0.000 description 15
- 239000010703 silicon Substances 0.000 description 15
- 230000007547 defect Effects 0.000 description 9
- 150000001875 compounds Chemical class 0.000 description 8
- 238000000926 separation method Methods 0.000 description 7
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- 229910052814 silicon oxide Inorganic materials 0.000 description 6
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- HQVNEWCFYHHQES-UHFFFAOYSA-N silicon nitride Chemical compound N12[Si]34N5[Si]62N3[Si]51N64 HQVNEWCFYHHQES-UHFFFAOYSA-N 0.000 description 5
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- 229910000673 Indium arsenide Inorganic materials 0.000 description 3
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- 238000001039 wet etching Methods 0.000 description 3
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- 239000010949 copper Substances 0.000 description 2
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- 229910021478 group 5 element Inorganic materials 0.000 description 2
- 239000011810 insulating material Substances 0.000 description 2
- MRELNEQAGSRDBK-UHFFFAOYSA-N lanthanum(3+);oxygen(2-) Chemical compound [O-2].[O-2].[O-2].[La+3].[La+3] MRELNEQAGSRDBK-UHFFFAOYSA-N 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
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- ITWBWJFEJCHKSN-UHFFFAOYSA-N 1,4,7-triazonane Chemical compound C1CNCCNCCN1 ITWBWJFEJCHKSN-UHFFFAOYSA-N 0.000 description 1
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- 229910000530 Gallium indium arsenide Inorganic materials 0.000 description 1
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- ZOKXTWBITQBERF-UHFFFAOYSA-N Molybdenum Chemical compound [Mo] ZOKXTWBITQBERF-UHFFFAOYSA-N 0.000 description 1
- 229910005883 NiSi Inorganic materials 0.000 description 1
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 1
- 229910004166 TaN Inorganic materials 0.000 description 1
- 229910004200 TaSiN Inorganic materials 0.000 description 1
- 229910010038 TiAl Inorganic materials 0.000 description 1
- 229910010041 TiAlC Inorganic materials 0.000 description 1
- 229910010037 TiAlN Inorganic materials 0.000 description 1
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 description 1
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 description 1
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 1
- XWCMFHPRATWWFO-UHFFFAOYSA-N [O-2].[Ta+5].[Sc+3].[O-2].[O-2].[O-2] Chemical compound [O-2].[Ta+5].[Sc+3].[O-2].[O-2].[O-2] XWCMFHPRATWWFO-UHFFFAOYSA-N 0.000 description 1
- ILCYGSITMBHYNK-UHFFFAOYSA-N [Si]=O.[Hf] Chemical compound [Si]=O.[Hf] ILCYGSITMBHYNK-UHFFFAOYSA-N 0.000 description 1
- 229910052787 antimony Inorganic materials 0.000 description 1
- WATWJIUSRGPENY-UHFFFAOYSA-N antimony atom Chemical compound [Sb] WATWJIUSRGPENY-UHFFFAOYSA-N 0.000 description 1
- 229910052785 arsenic Inorganic materials 0.000 description 1
- RQNWIZPPADIBDY-UHFFFAOYSA-N arsenic atom Chemical compound [As] RQNWIZPPADIBDY-UHFFFAOYSA-N 0.000 description 1
- VKJLWXGJGDEGSO-UHFFFAOYSA-N barium(2+);oxygen(2-);titanium(4+) Chemical compound [O-2].[O-2].[O-2].[Ti+4].[Ba+2] VKJLWXGJGDEGSO-UHFFFAOYSA-N 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 229910017052 cobalt Inorganic materials 0.000 description 1
- 239000010941 cobalt Substances 0.000 description 1
- GUTLYIVDDKVIGB-UHFFFAOYSA-N cobalt atom Chemical compound [Co] GUTLYIVDDKVIGB-UHFFFAOYSA-N 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
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- 239000013078 crystal Substances 0.000 description 1
- 239000003989 dielectric material Substances 0.000 description 1
- AJNVQOSZGJRYEI-UHFFFAOYSA-N digallium;oxygen(2-) Chemical compound [O-2].[O-2].[O-2].[Ga+3].[Ga+3] AJNVQOSZGJRYEI-UHFFFAOYSA-N 0.000 description 1
- 239000007772 electrode material Substances 0.000 description 1
- 229910052733 gallium Inorganic materials 0.000 description 1
- 229910001195 gallium oxide Inorganic materials 0.000 description 1
- YBMRDBCBODYGJE-UHFFFAOYSA-N germanium oxide Inorganic materials O=[Ge]=O YBMRDBCBODYGJE-UHFFFAOYSA-N 0.000 description 1
- 229910052735 hafnium Inorganic materials 0.000 description 1
- VBJZVLUMGGDVMO-UHFFFAOYSA-N hafnium atom Chemical compound [Hf] VBJZVLUMGGDVMO-UHFFFAOYSA-N 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
- 230000035876 healing Effects 0.000 description 1
- 229910052738 indium Inorganic materials 0.000 description 1
- WPYVAWXEWQSOGY-UHFFFAOYSA-N indium antimonide Chemical compound [Sb]#[In] WPYVAWXEWQSOGY-UHFFFAOYSA-N 0.000 description 1
- APFVFJFRJDLVQX-UHFFFAOYSA-N indium atom Chemical compound [In] APFVFJFRJDLVQX-UHFFFAOYSA-N 0.000 description 1
- 239000012212 insulator Substances 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- JQJCSZOEVBFDKO-UHFFFAOYSA-N lead zinc Chemical compound [Zn].[Pb] JQJCSZOEVBFDKO-UHFFFAOYSA-N 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000001451 molecular beam epitaxy Methods 0.000 description 1
- 229910052750 molybdenum Inorganic materials 0.000 description 1
- 239000011733 molybdenum Substances 0.000 description 1
- 229910021421 monocrystalline silicon Inorganic materials 0.000 description 1
- TWNQGVIAIRXVLR-UHFFFAOYSA-N oxo(oxoalumanyloxy)alumane Chemical compound O=[Al]O[Al]=O TWNQGVIAIRXVLR-UHFFFAOYSA-N 0.000 description 1
- KJXBRHIPHIVJCS-UHFFFAOYSA-N oxo(oxoalumanyloxy)lanthanum Chemical compound O=[Al]O[La]=O KJXBRHIPHIVJCS-UHFFFAOYSA-N 0.000 description 1
- SIWVEOZUMHYXCS-UHFFFAOYSA-N oxo(oxoyttriooxy)yttrium Chemical compound O=[Y]O[Y]=O SIWVEOZUMHYXCS-UHFFFAOYSA-N 0.000 description 1
- PVADDRMAFCOOPC-UHFFFAOYSA-N oxogermanium Chemical compound [Ge]=O PVADDRMAFCOOPC-UHFFFAOYSA-N 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
- 230000000149 penetrating effect Effects 0.000 description 1
- 229910052698 phosphorus Inorganic materials 0.000 description 1
- 239000011574 phosphorus Substances 0.000 description 1
- 229910021420 polycrystalline silicon Inorganic materials 0.000 description 1
- 229920005591 polysilicon Polymers 0.000 description 1
- VEALVRVVWBQVSL-UHFFFAOYSA-N strontium titanate Chemical compound [Sr+2].[O-][Ti]([O-])=O VEALVRVVWBQVSL-UHFFFAOYSA-N 0.000 description 1
- CZXRMHUWVGPWRM-UHFFFAOYSA-N strontium;barium(2+);oxygen(2-);titanium(4+) Chemical compound [O-2].[O-2].[O-2].[O-2].[Ti+4].[Sr+2].[Ba+2] CZXRMHUWVGPWRM-UHFFFAOYSA-N 0.000 description 1
- 229910052715 tantalum Inorganic materials 0.000 description 1
- GUVRBAGPIYLISA-UHFFFAOYSA-N tantalum atom Chemical compound [Ta] GUVRBAGPIYLISA-UHFFFAOYSA-N 0.000 description 1
- 229910001936 tantalum oxide Inorganic materials 0.000 description 1
- 229910052718 tin Inorganic materials 0.000 description 1
- 229910052719 titanium Inorganic materials 0.000 description 1
- OGIDPMRJRNCKJF-UHFFFAOYSA-N titanium oxide Inorganic materials [Ti]=O OGIDPMRJRNCKJF-UHFFFAOYSA-N 0.000 description 1
- 229910021341 titanium silicide Inorganic materials 0.000 description 1
- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 description 1
- 229910052721 tungsten Inorganic materials 0.000 description 1
- 239000010937 tungsten Substances 0.000 description 1
- 229910001928 zirconium oxide Inorganic materials 0.000 description 1
- GFQYVLUOOAAOGM-UHFFFAOYSA-N zirconium(iv) silicate Chemical compound [Zr+4].[O-][Si]([O-])([O-])[O-] GFQYVLUOOAAOGM-UHFFFAOYSA-N 0.000 description 1
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Abstract
Description
도 2a는 도 1의 A1-A1' 선을 따른 단면도이고, 도 2b는 도 1의 B1-B1' 선을 따른 단면도이고, 도 2c는 도 2a의 CC 부분의 확대도이다.
도 3은 본 발명의 기술적 사상의 실시예에 따른 집적회로 소자를 나타내는 단면도이다.
도 4는 본 발명의 기술적 사상의 실시예에 따른 집적회로 소자를 나타내는 단면도이다.
도 5는 본 발명의 기술적 사상의 실시예에 따른 집적회로 소자를 나타내는 단면도이다.
도 6 내지 도 15b는 본 발명의 기술적 사상의 실시예에 따른 집적회로 소자의 제조 방법을 나타내는 단면도들이다.
도 16은 본 발명의 기술적 사상의 실시예에 따른 집적회로 소자를 나타내는 사시도이다.
110: 기판 120: 게이트 전극
130: 스페이서 구조물 140: 소스/드레인 영역
FA: 핀형 활성 영역 NS: 반도체 패턴
Claims (10)
- 기판으로부터 돌출되고 제1 방향으로 연장되는 핀형 활성 영역;
상기 핀형 활성 영역의 상면으로부터 서로 이격되어 배치되며 채널 영역을 가지는 복수의 반도체 패턴;
상기 복수의 반도체 패턴을 둘러싸며 상기 제1 방향에 수직한 제2 방향으로 연장되고, 상기 복수의 반도체 패턴 중 최상부 반도체 패턴 상에 배치되며 상기 제2 방향으로 연장되는 메인 게이트 전극과 상기 복수의 반도체 패턴 사이에 배치되는 서브 게이트 전극을 포함하는 게이트 전극;
상기 메인 게이트 전극의 양 측벽 상에 배치되는 스페이서 구조물; 및
상기 게이트 전극의 양측에 배치되며 상기 복수의 반도체 패턴에 연결되고, 상기 스페이서 구조물의 바닥면과 접촉하는 소스/드레인 영역;을 포함하고,
상기 메인 게이트 전극의 중앙부는 상기 제1 방향을 따라 제1 폭을 가지고,
상기 메인 게이트 전극의 바닥부는 상기 제1 방향을 따라 상기 제1 폭보다 작은 제2 폭을 가지고,
서로 이웃하는 상기 소스/드레인 영역의 중앙부의 사이는 상기 제1 방향을 따라 상기 제2 폭보다 작은 제3 폭을 가지고,
상기 서브 게이트 전극의 중앙부는 상기 제1 방향을 따라 상기 제1 폭보다 작은 제4 폭을 가지는,
집적회로 소자. - 제1항에 있어서,
상기 메인 게이트 전극은,
상기 제1 및 제2 방향에 각각 수직한 제3 방향을 따라, 상기 메인 게이트 전극의 바닥부에서 상기 메인 게이트 전극의 측벽을 향하여, 라운드진 경사면을 가지는 것을 특징으로 하는 집적회로 소자. - 제2항에 있어서,
상기 메인 게이트 전극의 상기 라운드진 경사면은 상기 스페이서 구조물의 일부분과 수직 오버랩되는 것을 특징으로 하는 집적회로 소자. - 제3항에 있어서,
상기 스페이서 구조물은,
상기 메인 게이트 전극의 상기 측벽 상에 순서대로 배치되는 제1 스페이서 및 제2 스페이서를 포함하고,
상기 제1 스페이서는 상기 메인 게이트 전극의 상기 라운드진 경사면과 상기 최상부 반도체 패턴의 상면에 의해 정의되는 공간을 채우는 것을 특징으로 하는 집적회로 소자. - 제1항에 있어서,
상기 소스/드레인 영역은,
상기 게이트 전극의 양측에서 상기 핀형 활성 영역 내에 형성되는 리세스 영역의 내벽 상에 형성되는 제1 반도체층; 및
상기 제1 반도체층 상에서 상기 리세스 영역을 채우는 제2 반도체층;을 포함하고,
상기 제1 반도체층의 상면이 상기 스페이서 구조물의 바닥면과 접촉하는 것을 특징으로 하는 집적회로 소자. - 제5항에 있어서,
상기 제1 반도체층 및 상기 제2 반도체층은 각각 에피택셜 성장된 실리콘저머늄(SiGe)을 포함하고,
상기 제1 반도체층의 저머늄(Ge)의 농도는 상기 제2 반도체층의 저머늄(Ge)의 농도보다 낮은 것을 특징으로 하는 집적회로 소자. - 제6항에 있어서,
상기 제1 반도체층은 상기 제2 반도체층에 포함되지 않는 불순물을 더 포함하는 것을 특징으로 하는 집적회로 소자. - 제5항에 있어서,
상기 제1 반도체층은,
상기 제1 및 제2 방향에 각각 수직한 제3 방향을 따라, 상기 제1 반도체층의 상면에서 상기 제1 반도체층의 중앙부를 향하여, 경사면을 가지는 것을 특징으로 하는 집적회로 소자. - 제8항에 있어서,
상기 제1 반도체층의 상기 경사면의 적어도 일부는 상기 메인 게이트 전극의 측벽과 수직 오버랩되고,
상기 제1 반도체층의 상기 경사면의 다른 일부는 상기 메인 게이트 전극의 바닥부와 수직 오버랩되는 것을 특징으로 하는 집적회로 소자. - 제5항에 있어서,
평면에서 보았을 때,
상기 제2 방향으로 상기 제1 반도체층의 제1 폭은, 상기 제1 방향으로 상기 제1 반도체층의 중앙부의 제2 폭과 같거나 더 큰 것을 특징으로 하는 집적회로 소자.
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US20190067490A1 (en) | 2017-08-29 | 2019-02-28 | Samsung Electronics Co., Ltd. | Semiconductor devices and manufacturing methods thereof |
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US11676963B2 (en) | 2023-06-13 |
US20220149040A1 (en) | 2022-05-12 |
US11264381B2 (en) | 2022-03-01 |
US20210082914A1 (en) | 2021-03-18 |
CN112530944A (zh) | 2021-03-19 |
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