KR20090111258A - 오존을 반응가스로 이용한 귀금속막의 형성 방법 - Google Patents
오존을 반응가스로 이용한 귀금속막의 형성 방법 Download PDFInfo
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- KR20090111258A KR20090111258A KR1020080097350A KR20080097350A KR20090111258A KR 20090111258 A KR20090111258 A KR 20090111258A KR 1020080097350 A KR1020080097350 A KR 1020080097350A KR 20080097350 A KR20080097350 A KR 20080097350A KR 20090111258 A KR20090111258 A KR 20090111258A
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- CBENFWSGALASAD-UHFFFAOYSA-N Ozone Chemical compound [O-][O+]=O CBENFWSGALASAD-UHFFFAOYSA-N 0.000 title claims abstract description 244
- 238000000034 method Methods 0.000 title claims abstract description 133
- 239000012495 reaction gas Substances 0.000 title claims abstract description 58
- 229910000510 noble metal Inorganic materials 0.000 title claims abstract description 55
- 230000015572 biosynthetic process Effects 0.000 title description 5
- KJTLSVCANCCWHF-UHFFFAOYSA-N Ruthenium Chemical compound [Ru] KJTLSVCANCCWHF-UHFFFAOYSA-N 0.000 claims abstract description 213
- 229910052707 ruthenium Inorganic materials 0.000 claims abstract description 211
- 229910052741 iridium Inorganic materials 0.000 claims abstract description 174
- GKOZUEZYRPOHIO-UHFFFAOYSA-N iridium atom Chemical compound [Ir] GKOZUEZYRPOHIO-UHFFFAOYSA-N 0.000 claims abstract description 173
- 238000000151 deposition Methods 0.000 claims abstract description 158
- 230000008021 deposition Effects 0.000 claims abstract description 142
- 239000010970 precious metal Substances 0.000 claims abstract description 26
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- 238000002347 injection Methods 0.000 claims description 27
- 239000007924 injection Substances 0.000 claims description 27
- 229910052751 metal Inorganic materials 0.000 claims description 22
- 239000002184 metal Substances 0.000 claims description 22
- 239000010409 thin film Substances 0.000 claims description 13
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 3
- 229910052802 copper Inorganic materials 0.000 claims description 3
- 239000010949 copper Substances 0.000 claims description 3
- 238000007747 plating Methods 0.000 claims description 3
- 238000011065 in-situ storage Methods 0.000 claims description 2
- 230000009257 reactivity Effects 0.000 abstract description 18
- 230000000694 effects Effects 0.000 abstract description 5
- 229910052760 oxygen Inorganic materials 0.000 description 50
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 42
- 239000001301 oxygen Substances 0.000 description 42
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- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 14
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 description 12
- 239000012535 impurity Substances 0.000 description 12
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 10
- 238000000354 decomposition reaction Methods 0.000 description 10
- 150000002902 organometallic compounds Chemical class 0.000 description 10
- 238000010586 diagram Methods 0.000 description 9
- 229910052739 hydrogen Inorganic materials 0.000 description 9
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- 238000005086 pumping Methods 0.000 description 8
- 229910021529 ammonia Inorganic materials 0.000 description 7
- 239000006227 byproduct Substances 0.000 description 7
- 229910004298 SiO 2 Inorganic materials 0.000 description 6
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 6
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 6
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 description 6
- 230000004913 activation Effects 0.000 description 6
- 229910052786 argon Inorganic materials 0.000 description 6
- 125000004429 atom Chemical group 0.000 description 6
- 238000000277 atomic layer chemical vapour deposition Methods 0.000 description 6
- 239000007788 liquid Substances 0.000 description 6
- 150000004767 nitrides Chemical class 0.000 description 6
- 229910052710 silicon Inorganic materials 0.000 description 6
- 239000010703 silicon Substances 0.000 description 6
- 229910052814 silicon oxide Inorganic materials 0.000 description 6
- 239000007787 solid Substances 0.000 description 6
- 239000006200 vaporizer Substances 0.000 description 6
- 239000001257 hydrogen Substances 0.000 description 5
- 125000004435 hydrogen atom Chemical class [H]* 0.000 description 5
- 238000006557 surface reaction Methods 0.000 description 5
- 230000003746 surface roughness Effects 0.000 description 5
- 230000007704 transition Effects 0.000 description 5
- MYMOFIZGZYHOMD-UHFFFAOYSA-N Dioxygen Chemical compound O=O MYMOFIZGZYHOMD-UHFFFAOYSA-N 0.000 description 4
- 229910052799 carbon Inorganic materials 0.000 description 4
- 230000007423 decrease Effects 0.000 description 4
- 229910001882 dioxygen Inorganic materials 0.000 description 4
- 239000002243 precursor Substances 0.000 description 4
- 238000001179 sorption measurement Methods 0.000 description 4
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- 150000002500 ions Chemical class 0.000 description 3
- 229910001873 dinitrogen Inorganic materials 0.000 description 2
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- 238000011534 incubation Methods 0.000 description 1
- 210000003127 knee Anatomy 0.000 description 1
- 150000002736 metal compounds Chemical class 0.000 description 1
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- 238000012986 modification Methods 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
- 230000000704 physical effect Effects 0.000 description 1
- 239000000376 reactant Substances 0.000 description 1
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- 229910001928 zirconium oxide Inorganic materials 0.000 description 1
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- 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
- H01L21/04—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
- 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
- H01L21/28—Manufacture of electrodes on semiconductor bodies using processes or apparatus not provided for in groups H01L21/20 - H01L21/268
- H01L21/283—Deposition of conductive or insulating materials for electrodes conducting electric current
- H01L21/285—Deposition of conductive or insulating materials for electrodes conducting electric current from a gas or vapour, e.g. condensation
- H01L21/28506—Deposition of conductive or insulating materials for electrodes conducting electric current from a gas or vapour, e.g. condensation of conductive layers
- H01L21/28512—Deposition of conductive or insulating materials for electrodes conducting electric current from a gas or vapour, e.g. condensation of conductive layers on semiconductor bodies comprising elements of Group IV of the Periodic Table
- H01L21/28556—Deposition of conductive or insulating materials for electrodes conducting electric current from a gas or vapour, e.g. condensation of conductive layers on semiconductor bodies comprising elements of Group IV of the Periodic Table by chemical means, e.g. CVD, LPCVD, PECVD, laser CVD
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- 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
- H01L21/04—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
- 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
- H01L21/28—Manufacture of electrodes on semiconductor bodies using processes or apparatus not provided for in groups H01L21/20 - H01L21/268
- H01L21/283—Deposition of conductive or insulating materials for electrodes conducting electric current
- H01L21/285—Deposition of conductive or insulating materials for electrodes conducting electric current from a gas or vapour, e.g. condensation
- H01L21/28506—Deposition of conductive or insulating materials for electrodes conducting electric current from a gas or vapour, e.g. condensation of conductive layers
- H01L21/28512—Deposition of conductive or insulating materials for electrodes conducting electric current from a gas or vapour, e.g. condensation of conductive layers on semiconductor bodies comprising elements of Group IV of the Periodic Table
- H01L21/28568—Deposition of conductive or insulating materials for electrodes conducting electric current from a gas or vapour, e.g. condensation of conductive layers on semiconductor bodies comprising elements of Group IV of the Periodic Table the conductive layers comprising transition metals
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- 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
- H01L21/04—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
- 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
- H01L21/30—Treatment of semiconductor bodies using processes or apparatus not provided for in groups H01L21/20 - H01L21/26
- H01L21/31—Treatment of semiconductor bodies using processes or apparatus not provided for in groups H01L21/20 - H01L21/26 to form insulating layers thereon, e.g. for masking or by using photolithographic techniques; After treatment of these layers; Selection of materials for these layers
- H01L21/3205—Deposition of non-insulating-, e.g. conductive- or resistive-, layers on insulating layers; After-treatment of these layers
- H01L21/321—After treatment
- H01L21/3213—Physical or chemical etching of the layers, e.g. to produce a patterned layer from a pre-deposited extensive layer
- H01L21/32133—Physical or chemical etching of the layers, e.g. to produce a patterned layer from a pre-deposited extensive layer by chemical means only
- H01L21/32135—Physical or chemical etching of the layers, e.g. to produce a patterned layer from a pre-deposited extensive layer by chemical means only by vapour etching only
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- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10D—INORGANIC ELECTRIC SEMICONDUCTOR DEVICES
- H10D1/00—Resistors, capacitors or inductors
- H10D1/60—Capacitors
- H10D1/68—Capacitors having no potential barriers
- H10D1/692—Electrodes
- H10D1/694—Electrodes comprising noble metals or noble metal oxides
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Abstract
Description
Claims (32)
- 적어도 100g/m3 이하의 농도를 갖는 오존(O3)을 반응가스로 이용하여 귀금속막을 증착하는 귀금속막 형성 방법.
- 제1항에 있어서,상기 오존의 농도는 20∼100g/m3인 귀금속막 형성 방법.
- 제1항에 있어서,상기 귀금속막 증착시 기판온도는 150∼275℃ 범위로 하는 귀금속막 형성 방법.
- 제1항에 있어서,상기 귀금속막은 원자층증착법(ALD)으로 증착하는 귀금속막 형성 방법.
- 제4항에 있어서,상기 원자층증착법은,귀금속소스 주입, 퍼지, 상기 오존 주입 및 퍼지의 순서로 이루어진 단위사이클을 반복하는 귀금속막 형성 방법.
- 제4항에 있어서상기 원자층증착법은,상기 오존(O3)을 연속적으로 주입한 상태에서 귀금속소스 주입과 퍼지를 반복하는 귀금속막 형성 방법.
- 제1항에 있어서,상기 귀금속막은 귀금속소스와 상기 오존(O3)을 동시에 주입하는 화학기상증착법(CVD)으로 증착하는 귀금속막 형성 방법.
- 제1항 내지 제7항 중 어느 한 항에 있어서,상기 귀금속막은, 루테늄막 또는 이리듐막을 포함하는 귀금속막 형성 방법.
- 제5항 내지 제7항 중 어느 한 항에 있어서,상기 귀금속소스는 Ru(Cp)2, Ru(MeCp)2, Ru(EtCp)2, Ru(tmhd)3, Ru(mhd)3 ,Ru(od)3, Ir(η3-C3H5)3, Ir9(Cp)(C2H4)2, Ir(COD)(Cp), Ir(Cp)(MeCp), Ir(EtCp)(COD), Ir(EtCp)(CHD) 및 Ir(EtCp)(C2H4)2로 이루어진 그룹중에서 선택된 어느 하나를 포함하는 박막 형성 방법.
- 50∼300g/m3 범위 내에서 선택되는 농도를 갖는 오존(O3)을 반응가스로 하여 150∼275℃ 범위에서 선택되는 기판온도에서 귀금속막을 증착하는 귀금속막 형성 방법.
- 제10항에 있어서,상기 귀금속막 증착시 상기 농도와 기판온도는 반비례 관계를 갖도록 조절하는 귀금속막 형성 방법.
- 제10항에 있어서,상기 귀금속막은 원자층증착법(ALD)으로 증착하는 귀금속막 형성 방법.
- 제12항에 있어서,상기 원자층증착법은,귀금속소스 주입, 퍼지, 상기 오존 주입 및 퍼지의 순서로 이루어진 단위사이클을 반복하는 귀금속막 형성 방법.
- 제12항에 있어서상기 원자층증착법은,상기 오존(O3)을 연속적으로 주입한 상태에서 귀금속소스 주입과 퍼지를 반복하는 귀금속막 형성 방법.
- 제10항에 있어서,상기 귀금속막은 귀금속소스와 상기 오존(O3)을 동시에 주입하는 화학기상증착법(CVD)으로 증착하는 귀금속막 형성 방법.
- 제10항 내지 제15항 중 어느 한 항에 있어서,상기 귀금속막은, 루테늄막 또는 이리듐막을 포함하는 귀금속막 형성 방법.
- 제13항 내지 제15항 중 어느 한 항에 있어서,상기 귀금속소스는 Ru(Cp)2, Ru(MeCp)2, Ru(EtCp)2, Ru(tmhd)3, Ru(mhd)3 ,Ru(od)3, Ir(η3-C3H5)3, Ir9(Cp)(C2H4)2, Ir(COD)(Cp), Ir(Cp)(MeCp), Ir(EtCp)(COD), Ir(EtCp)(CHD) 및 Ir(EtCp)(C2H4)2로 이루어진 그룹중에서 선택된 어느 하나를 포함하는 귀금속막 형성 방법.
- 제1농도의 오존을 반응가스로 이용한 증착을 수행하는 단계;상기 제1농도보다 높은 제2농도의 오존을 이용하여 식각을 수행하는 단계; 및상기 증착과 식각을 반복하여 컨포멀한 귀금속막을 형성하는 단계를 포함하는 귀금속막 형성 방법.
- 제18항에 있어서,상기 제2농도의 오존은 상기 제1농도의 오존보다 유량이 큰 귀금속막 형성 방법.
- 제18항에 있어서,상기 제1농도는 20∼100g/m3 범위로 하는 귀금속막 형성 방법.
- 제18항에 있어서,상기 제2농도는 200∼350g/m3 범위로 하는 귀금속막 형성 방법.
- 제18항에 있어서,상기 증착과 식각은 동일 챔버 내에서 인시튜로 진행하는 귀금속막 형성 방법.
- 제18항에 있어서,상기 식각은,상기 제2농도의 오존을 주입하는 단계와 퍼지단계를 반복하여 진행하는 귀금속막 형성 방법.
- 제18항에 있어서,상기 증착은, 원자층증착법(ALD) 또는 화학기상증착법(CVD)에 의해 진행되는 귀금속막 형성 방법.
- 제18항에 있어서,상기 증착은,귀금속소스 주입, 퍼지, 상기 제1농도의 오존 주입 및 퍼지의 순서로 이루어진 단위사이클을 반복하는 원자층증착법을 이용하는 귀금속막 형성 방법.
- 제18항에 있어서상기 증착은,상기 제1농도의 오존(O3)을 연속적으로 주입한 상태에서 귀금속소스주입과 퍼지를 반복하는 원자층증착법을 이용하는 귀금속막 형성 방법.
- 제18항에 있어서상기 증착은,상기 제1농도의 오존(O3)과 귀금속소스를 동시에 주입한 후 퍼지하는 화학기상증착법을 이용하는 귀금속막 형성 방법.
- 제25항 내지 제27항 중 어느 한 항에 있어서,상기 귀금속소스는 Ru(Cp)2, Ru(MeCp)2, Ru(EtCp)2, Ru(tmhd)3, Ru(mhd)3 ,Ru(od)3, Ir(η3-C3H5)3, Ir9(Cp)(C2H4)2, Ir(COD)(Cp), Ir(Cp)(MeCp), Ir(EtCp)(COD), Ir(EtCp)(CHD) 및 Ir(EtCp)(C2H4)2로 이루어진 그룹중에서 선택된 어느 하나를 포함하는 귀금속막 형성 방법.
- 제18항 내지 제27항 중 어느 한 항에 있어서,상기 귀금속막은 루테늄막 또는 이리듐막을 포함하는 귀금속막 형성 방법.
- 제18항 내지 제27항 중 어느 한 항에 있어서,상기 증착은 150∼275℃의 기판온도에서 진행하는 귀금속막 형성 방법.
- 제18항 내지 제27항 중 어느 한 항에 있어서,상기 증착은,종횡비(Aspect ratio)를 갖는 패턴 상부에서 진행하는 귀금속막 형성 방법.
- 제18항 내지 제27항 중 어느 한 항에 있어서,상기 컨포멀한 귀금속막은,캐패시터의 하부전극, 캐패시터의 상부전극, 게이트전극, 비트라인, 금속배선 또는 구리도금용 시드층 중 적어도 어느 하나가 되는 귀금속막 형성 방법.
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1020080097350A KR101094379B1 (ko) | 2008-04-21 | 2008-10-02 | 오존을 반응가스로 이용한 귀금속막의 형성 방법 |
US12/318,468 US8288274B2 (en) | 2008-04-21 | 2008-12-30 | Method of forming noble metal layer using ozone reaction gas |
CN2009100012991A CN101565829B (zh) | 2008-04-21 | 2009-01-16 | 使用臭氧反应气体形成贵金属层的方法 |
US13/612,505 US20130022744A1 (en) | 2008-04-21 | 2012-09-12 | Method of forming noble metal layer using ozone reaction gas |
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Cited By (2)
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KR101651512B1 (ko) | 2015-06-01 | 2016-08-29 | 한국과학기술연구원 | 백금족 박막의 원자층 증착방법 |
WO2022169567A1 (en) * | 2021-02-05 | 2022-08-11 | Tokyo Electron Limited | Removal of stray ruthenium metal nuclei for selective ruthenium metal layer formation |
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Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
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KR101651512B1 (ko) | 2015-06-01 | 2016-08-29 | 한국과학기술연구원 | 백금족 박막의 원자층 증착방법 |
WO2022169567A1 (en) * | 2021-02-05 | 2022-08-11 | Tokyo Electron Limited | Removal of stray ruthenium metal nuclei for selective ruthenium metal layer formation |
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