KR100785004B1 - 반도체 소자의 제조방법 - Google Patents
반도체 소자의 제조방법 Download PDFInfo
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- KR100785004B1 KR100785004B1 KR1020050005835A KR20050005835A KR100785004B1 KR 100785004 B1 KR100785004 B1 KR 100785004B1 KR 1020050005835 A KR1020050005835 A KR 1020050005835A KR 20050005835 A KR20050005835 A KR 20050005835A KR 100785004 B1 KR100785004 B1 KR 100785004B1
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- 239000004065 semiconductor Substances 0.000 title claims description 29
- 238000004519 manufacturing process Methods 0.000 title claims description 24
- 239000000758 substrate Substances 0.000 claims abstract description 29
- 239000000463 material Substances 0.000 claims abstract description 24
- 239000013078 crystal Substances 0.000 claims abstract description 18
- 238000005224 laser annealing Methods 0.000 claims abstract description 12
- 238000000151 deposition Methods 0.000 claims abstract description 11
- 238000005530 etching Methods 0.000 claims abstract description 3
- 238000000034 method Methods 0.000 claims description 25
- 230000008021 deposition Effects 0.000 claims description 8
- 229910000577 Silicon-germanium Inorganic materials 0.000 claims description 7
- 238000004518 low pressure chemical vapour deposition Methods 0.000 claims description 7
- 229910002601 GaN Inorganic materials 0.000 claims description 5
- 229910001218 Gallium arsenide Inorganic materials 0.000 claims description 5
- 229910003465 moissanite Inorganic materials 0.000 claims description 5
- 229910010271 silicon carbide Inorganic materials 0.000 claims description 5
- 230000003647 oxidation Effects 0.000 claims description 4
- 238000007254 oxidation reaction Methods 0.000 claims description 4
- 238000000623 plasma-assisted chemical vapour deposition Methods 0.000 claims description 4
- 230000008020 evaporation Effects 0.000 claims description 3
- 238000001704 evaporation Methods 0.000 claims description 3
- 238000002488 metal-organic chemical vapour deposition Methods 0.000 claims description 3
- 238000004544 sputter deposition Methods 0.000 claims description 3
- 230000001590 oxidative effect Effects 0.000 claims description 2
- 229910021421 monocrystalline silicon Inorganic materials 0.000 abstract description 20
- 238000009413 insulation Methods 0.000 abstract 1
- 239000010410 layer Substances 0.000 description 35
- 229910021417 amorphous silicon Inorganic materials 0.000 description 10
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 9
- 229910021420 polycrystalline silicon Inorganic materials 0.000 description 9
- 229910052710 silicon Inorganic materials 0.000 description 9
- 239000010703 silicon Substances 0.000 description 9
- 229910052751 metal Inorganic materials 0.000 description 6
- 239000002184 metal Substances 0.000 description 6
- 229920005591 polysilicon Polymers 0.000 description 5
- 238000000137 annealing Methods 0.000 description 4
- 238000002425 crystallisation Methods 0.000 description 4
- 238000000059 patterning Methods 0.000 description 4
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 3
- 230000015572 biosynthetic process Effects 0.000 description 3
- 229910021332 silicide Inorganic materials 0.000 description 3
- FVBUAEGBCNSCDD-UHFFFAOYSA-N silicide(4-) Chemical compound [Si-4] FVBUAEGBCNSCDD-UHFFFAOYSA-N 0.000 description 3
- 229910052814 silicon oxide Inorganic materials 0.000 description 3
- 238000001069 Raman spectroscopy Methods 0.000 description 2
- 238000001237 Raman spectrum Methods 0.000 description 2
- 230000008025 crystallization Effects 0.000 description 2
- 150000002739 metals Chemical group 0.000 description 2
- 238000000206 photolithography Methods 0.000 description 2
- 238000001878 scanning electron micrograph Methods 0.000 description 2
- 238000001530 Raman microscopy Methods 0.000 description 1
- 229910004298 SiO 2 Inorganic materials 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 239000002019 doping agent Substances 0.000 description 1
- 238000001312 dry etching Methods 0.000 description 1
- 239000011229 interlayer Substances 0.000 description 1
- 230000015654 memory Effects 0.000 description 1
- 238000001465 metallisation Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 150000004767 nitrides Chemical class 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 230000000737 periodic effect Effects 0.000 description 1
- 230000000704 physical effect Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 230000027756 respiratory electron transport chain Effects 0.000 description 1
- 238000007740 vapor deposition Methods 0.000 description 1
- 238000001039 wet etching Methods 0.000 description 1
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Abstract
Description
상기 비정질 물질을 결정화하는 단계에서, 비정질 물질이 접촉된 상기 기판 표면이 종자로 작용하는 것을 특징으로 한다.
Claims (10)
- 단결정 기판에 절연층을 형성하는 단계;상기 절연층을 소정 패턴으로 식각하여 상기 단결정 기판의 표면을 노출시키는 단계;상기 절연층과 기판의 표면에 비정질물질을 증착(deposition)하는 단계; 그리고레이저 어닐링에 의해 기판 표면과 상기 절연층 위의 비정질물질을 완전 용융시킨 후 결정화하는 단계;를 포함하며,상기 비정질 물질을 결정화하는 단계에서, 비정질 물질이 접촉된 상기 기판 표면이 종자(seed)로 작용하는 것을 특징으로 하는 반도체 소자의 제조방법.
- 제 1 항에 있어서,상기 단결정 기판의 재료는 Si, GaAs, GaN, SiC, SiGe 중에서 선택된 어느 하나인 것을 특징으로 하는 반도체 소자의 제조방법.
- 제 1 항에 있어서,상기 절연층은 Si 옥사이드(Si-O), Ga 옥사이드(Ga-O), Ge 옥사이드(Ge-O), SiGe 옥사이드(SiGe-O), SiC 옥사이드(SiC-O) 중에서 선택된 1종 이상의 물질로 형 성되는 것을 특징으로 하는 반도체 소자의 제조방법.
- 제 1 항에 있어서,상기 절연층은 단결정 기판의 표면을 열적 산화시켜 형성되는 것을 특징으로 하는 반도체 소자의 제조방법.
- 제 4 항에 있어서,상기 열적 산화는 700~1100℃의 습한 분위기의 퍼니스(furnace)에서 1~100분간 진행되는 것을 특징으로 하는 반도체 소자의 제조방법.
- 제 1 항 내지 제 5 항 중의 어느 한 항에 있어서,상기 비정질물질은 LPCVD, 스퍼터링, PECVD, MOCVD, 전자빔 증착(e-beam evaporation), ALD(atom layer deposition) 중 어느 하나의 방법으로 형성하는 것을 특징으로 하는 반도체 소자의 제조방법.
- 제 6 항에 있어서,상기 비정질 물질이 350~750℃의 온도조건, 1~100분의 공정시간으로 조절된 LPCVD에 의해 형성되는 것을 특징으로 하는 반도체 소자의 제조방법.
- 제 1 항 내지 제 5 항 중의 어느 한 항에 있어서,상기 레이저 어닐링 시 레이저에 의한 에너지 밀도의 범위는 300~1200mJ/cm2 인 것을 특징으로 하는 반도체 소자의 제조방법.
- 제 8 항에 있어서,상기 레이저 어닐링시 가해지는 레이저의 조사수(shot)은 1~100회인 것을 특징으로 하는 반도체 소자의 제조방법.
- 제 8 항에 있어서,상기 레이져 어닐링은 ELA(Excimer Laser Annealing)에 의해 수행되는 것을 특징으로 하는 반도체 소자의 제조방법.
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
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KR1020050005835A KR100785004B1 (ko) | 2005-01-21 | 2005-01-21 | 반도체 소자의 제조방법 |
US11/336,802 US7449402B2 (en) | 2005-01-21 | 2006-01-23 | Method of fabricating semiconductor device |
Applications Claiming Priority (1)
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KR100195195B1 (ko) | 1995-12-16 | 1999-07-01 | 윤종용 | 저온 폴리실리콘 초박막액정표시소자의 게이트 형성방법 |
JP2001060551A (ja) | 1999-08-19 | 2001-03-06 | Fujitsu Ltd | 半導体装置の製造方法 |
JP2002075987A (ja) * | 2000-08-25 | 2002-03-15 | Toyota Central Res & Dev Lab Inc | 半導体装置の製造方法 |
KR20040051006A (ko) * | 2002-12-11 | 2004-06-18 | 엘지.필립스 엘시디 주식회사 | 비정질 실리콘의 결정화 방법 및 이를 이용한박막트랜지스터의 형성방법 |
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US20020192914A1 (en) * | 2001-06-15 | 2002-12-19 | Kizilyalli Isik C. | CMOS device fabrication utilizing selective laser anneal to form raised source/drain areas |
KR100438772B1 (ko) * | 2001-08-07 | 2004-07-05 | 삼성전자주식회사 | 버블 디펙트를 방지할 수 있는 반도체 소자의 제조방법 |
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KR100195195B1 (ko) | 1995-12-16 | 1999-07-01 | 윤종용 | 저온 폴리실리콘 초박막액정표시소자의 게이트 형성방법 |
JP2001060551A (ja) | 1999-08-19 | 2001-03-06 | Fujitsu Ltd | 半導体装置の製造方法 |
JP2002075987A (ja) * | 2000-08-25 | 2002-03-15 | Toyota Central Res & Dev Lab Inc | 半導体装置の製造方法 |
KR20040051006A (ko) * | 2002-12-11 | 2004-06-18 | 엘지.필립스 엘시디 주식회사 | 비정질 실리콘의 결정화 방법 및 이를 이용한박막트랜지스터의 형성방법 |
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