KR20110101676A - 반도체 소자 및 그의 형성 방법 - Google Patents
반도체 소자 및 그의 형성 방법 Download PDFInfo
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- KR20110101676A KR20110101676A KR1020100020858A KR20100020858A KR20110101676A KR 20110101676 A KR20110101676 A KR 20110101676A KR 1020100020858 A KR1020100020858 A KR 1020100020858A KR 20100020858 A KR20100020858 A KR 20100020858A KR 20110101676 A KR20110101676 A KR 20110101676A
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- forming
- insulating film
- semiconductor device
- carbon nanotubes
- graphene
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- 239000004065 semiconductor Substances 0.000 title claims abstract description 80
- 238000000034 method Methods 0.000 title claims description 67
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims abstract description 90
- 239000002041 carbon nanotube Substances 0.000 claims abstract description 52
- 229910021393 carbon nanotube Inorganic materials 0.000 claims abstract description 51
- 239000000758 substrate Substances 0.000 claims abstract description 34
- 229910021389 graphene Inorganic materials 0.000 claims abstract description 32
- 239000010410 layer Substances 0.000 claims description 29
- 238000005229 chemical vapour deposition Methods 0.000 claims description 13
- 239000003054 catalyst Substances 0.000 claims description 11
- 238000000231 atomic layer deposition Methods 0.000 claims description 10
- 239000007789 gas Substances 0.000 claims description 10
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 claims description 9
- 239000002356 single layer Substances 0.000 claims description 8
- 238000004381 surface treatment Methods 0.000 claims description 8
- 229910052799 carbon Inorganic materials 0.000 claims description 7
- 239000001257 hydrogen Substances 0.000 claims description 7
- 229910052739 hydrogen Inorganic materials 0.000 claims description 7
- 239000011261 inert gas Substances 0.000 claims description 7
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 claims description 6
- WIHZLLGSGQNAGK-UHFFFAOYSA-N hafnium(4+);oxygen(2-) Chemical compound [O-2].[O-2].[Hf+4] WIHZLLGSGQNAGK-UHFFFAOYSA-N 0.000 claims description 6
- 150000002431 hydrogen Chemical class 0.000 claims description 6
- 229910052451 lead zirconate titanate Inorganic materials 0.000 claims description 6
- 238000004518 low pressure chemical vapour deposition Methods 0.000 claims description 6
- 239000000463 material Substances 0.000 claims description 6
- 150000004767 nitrides Chemical class 0.000 claims description 6
- RVTZCBVAJQQJTK-UHFFFAOYSA-N oxygen(2-);zirconium(4+) Chemical compound [O-2].[O-2].[Zr+4] RVTZCBVAJQQJTK-UHFFFAOYSA-N 0.000 claims description 6
- 238000000623 plasma-assisted chemical vapour deposition Methods 0.000 claims description 6
- 229910052814 silicon oxide Inorganic materials 0.000 claims description 5
- 229910000449 hafnium oxide Inorganic materials 0.000 claims description 4
- 229910001928 zirconium oxide Inorganic materials 0.000 claims description 4
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 3
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 3
- 229910052786 argon Inorganic materials 0.000 claims description 3
- 229910017052 cobalt Inorganic materials 0.000 claims description 3
- 239000010941 cobalt Substances 0.000 claims description 3
- GUTLYIVDDKVIGB-UHFFFAOYSA-N cobalt atom Chemical compound [Co] GUTLYIVDDKVIGB-UHFFFAOYSA-N 0.000 claims description 3
- 229910052751 metal Inorganic materials 0.000 claims description 3
- 239000002184 metal Substances 0.000 claims description 3
- 229910052759 nickel Inorganic materials 0.000 claims description 3
- 239000003989 dielectric material Substances 0.000 claims description 2
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 claims 1
- 230000000694 effects Effects 0.000 abstract description 7
- 239000002071 nanotube Substances 0.000 abstract 1
- 229910004298 SiO 2 Inorganic materials 0.000 description 4
- 238000013461 design Methods 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 238000005240 physical vapour deposition Methods 0.000 description 3
- 229910018072 Al 2 O 3 Inorganic materials 0.000 description 2
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 2
- 229910002367 SrTiO Inorganic materials 0.000 description 2
- -1 Ta 2 O 5 Inorganic materials 0.000 description 2
- 229910003071 TaON Inorganic materials 0.000 description 2
- 229910010413 TiO 2 Inorganic materials 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000010354 integration Effects 0.000 description 2
- 229910052745 lead Inorganic materials 0.000 description 2
- 239000002086 nanomaterial Substances 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 229910052710 silicon Inorganic materials 0.000 description 2
- 239000010703 silicon Substances 0.000 description 2
- 238000000277 atomic layer chemical vapour deposition Methods 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000003990 capacitor Substances 0.000 description 1
- 238000003763 carbonization Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000000151 deposition Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000005868 electrolysis reaction Methods 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 229920002120 photoresistant polymer Polymers 0.000 description 1
- 239000012495 reaction gas Substances 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 239000002210 silicon-based material Substances 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 238000003786 synthesis reaction Methods 0.000 description 1
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Abstract
Description
도 2a 내지 도 2e는 본 발명에 따른 반도체 소자의 형성 방법을 나타낸 단면도.
Claims (28)
- 반도체 기판 상에 성장된 탄소나노튜브;
상기 탄소나노튜브의 내,외부에 형성된 절연막; 및
상기 절연막 표면에 형성된 그래핀(Graphene)을 포함하는 것을 특징으로 하는 반도체 소자. - 청구항 1에 있어서,
상기 탄소나노튜브는
수직성장된 것을 특징으로 하는 반도체 소자. - 청구항 1에 있어서,
상기 절연막은
고유전(high-K)물질을 포함하는 것을 특징으로 하는 반도체 소자. - 청구항 1에 있어서,
상기 절연막은
지르코늄 산화물, PZT 또는 하프늄 산화물을 포함하는 것을 특징으로 하는 반도체 소자. - 청구항 1에 있어서,
상기 절연막은
산화막을 포함하는 것을 특징으로 하는 반도체 소자. - 청구항 1에 있어서,
상기 절연막은
질화막을 포함하는 것을 특징으로 하는 반도체 소자. - 청구항 1에 있어서,
상기 절연막은
탄화막을 포함하는 것을 특징으로 하는 반도체 소자. - 청구항 1에 있어서,
상기 그래핀은 모노레이어(mono layer)를 포함하는 것을 특징으로 하는 반도체 소자. - 청구항 1에 있어서,
상기 그래핀은 멀티레이어(multi layer)를 포함하는 것을 특징으로 하는 반도체 소자. - 반도체 기판 상에 탄소나노튜브를 성장시키는 단계;
상기 탄소나노튜브의 내,외부에 절연막을 형성하는 단계; 및
상기 절연막 표면에 그래핀(Graphene)을 형성하는 단계를 포함하는 것을 특징으로 하는 반도체 소자의 형성 방법. - 청구항 10에 있어서,
상기 탄소나노튜브를 성장시키는 단계는
상기 반도체 기판의 일부를 노출시키는 마스크 패턴을 형성하는 단계;
상기 반도체 기판의 표면에너지를 증가시키는 단계; 및
상기 반도체 기판에 성장소스를 주입하여 수직성장시키는 단계를 포함하는 것을 특징으로 하는 반도체 소자의 형성 방법. - 청구항 11에 있어서,
상기 반도체 기판의 표면에너지를 증가시키는 단계는
상기 마스크 패턴을 마스크로 불활성기체를 이용한 플라즈마 표면처리를 수행하는 단계를 포함하는 것을 특징으로 하는 반도체 소자의 형성 방법. - 청구항 11에 있어서,
상기 반도체 기판의 표면에너지를 증가시키는 단계는
상기 반도체 기판 상에 실리콘산화막을 형성하는 단계를 포함하는 것을 특징으로 하는 반도체 소자의 형성 방법. - 청구항 11에 있어서
상기 탄소나노튜브를 성장시키는 단계에서 상기 성장소스는
탄소, 수소 및 이들의 조합 중 어느 하나인 것을 특징으로 하는 반도체 소자의 형성 방법. - 청구항 11에 있어서,
상기 탄소나노튜브를 성장시키는 단계에서 상기 성장소스를 주입하여 성장시키는 단계는
화학적기상증착방법 중에서 PECVD(Plasma Enhanced CVD), MOCVD(Metal Organic CVD), LPCVD(Low Pressure CVD) 또는 HPCVD(High Pressure CVD)를 이용하는 것을 특징으로 하는 반도체 소자의 형성 방법. - 청구항 11에 있어서,
상기 탄소나노튜브를 성장시키는 단계에서 상기 성장소스는
CH4,C2H6,C4H8 계열의 가스를 포함하는 것을 특징으로 하는 반도체 소자의 형성 방법. - 청구항 11에 있어서,
상기 탄소나노튜브를 성장시키는 단계에서 상기 성장소스를 주입하여 성장시키는 단계는
200 내지 1000℃에서 수행되는 것을 특징으로 하는 반도체 소자의 형성 방법. - 청구항 10에 있어서,
상기 절연막을 형성하는 단계는
고유전체 물질(high-K)을 이용하는 것을 특징으로 하는 반도체 소자의 형성 방법. - 청구항 10에 있어서,
상기 절연막을 형성하는 단계는
지르코늄 산화물, PZT 또는 하프늄 산화물을 형성하는 것을 특징으로 하는 반도체 소자의 형성 방법. - 청구항 10에 있어서,
상기 절연막을 형성하는 단계에서,
상기 절연막은 산화막을 포함하는 것을 특징으로 하는 반도체 소자의 형성 방법. - 청구항 10에 있어서,
상기 절연막을 형성하는 단계에서,
상기 절연막은 질화막을 포함하는 것을 특징으로 하는 반도체 소자의 형성 방법. - 청구항 10에 있어서,
상기 절연막을 형성하는 단계에서,
상기 절연막은 탄화막을 포함하는 것을 특징으로 하는 반도체 소자의 형성 방법. - 청구항 10에 있어서,
상기 절연막을 형성하는 단계는
원자층 증착방법(Atomic Layer Deposition) 또는 화학적기상증착방법을 이용하는 것을 특징으로 하는 반도체 소자의 형성 방법. - 청구항 10에 있어서,
상기 절연막 표면에 그래핀을 형성하는 단계는
상기 절연막 표면에 촉매층을 형성하는 단계; 및
상기 촉매층 상에 성장소스를 주입하여 상기 그래핀을 성장시키는 단계를 포함하는 것을 특징으로 하는 반도체 소자의 형성 방법. - 청구항 24에 있어서,
상기 촉매층을 형성하는 단계는
화학적기상증착방법 또는 원자층 증착방법을 이용하는 것을 특징으로 하는 반도체 소자의 형성 방법. - 청구항 24에 있어서,
상기 촉매층을 형성하는 단계는
철(Fe), 니켈(Ni), 코발트(Co) 및 이들의 조합 중 어느 하나를 형성하는 단계를 포함하는 것을 특징으로 하는 반도체 소자의 형성 방법. - 청구항 24에 있어서,
상기 촉매층에 성장소스를 주입하여 상기 그래핀을 성장시키는 단계는
CH4,C2H6,C4H8 계열의 가스, 수소, 아르곤 가스 및 이들의 조합 중 어느 하나를 이용하는 것을 특징으로 하는 반도체 소자의 형성 방법. - 청구항 24에 있어서,
상기 그래핀을 성장시키는 단계는
화학적기상증착방법 또는 원자층 증착방법을 이용하는 것을 특징으로 하는 반도체 소자의 형성 방법.
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KR20190033010A (ko) * | 2017-09-20 | 2019-03-28 | 도쿄엘렉트론가부시키가이샤 | 그래핀 구조체의 형성 방법 및 형성 장치 |
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US9048310B2 (en) | 2012-10-29 | 2015-06-02 | Samsung Electronics Co., Ltd. | Graphene switching device having tunable barrier |
KR20160003403A (ko) * | 2014-07-01 | 2016-01-11 | 에스케이이노베이션 주식회사 | 수직배향 탄소 나노 튜브 집합체의 제조방법 |
KR20190033010A (ko) * | 2017-09-20 | 2019-03-28 | 도쿄엘렉트론가부시키가이샤 | 그래핀 구조체의 형성 방법 및 형성 장치 |
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