KR100970795B1 - 저저항 질화 티타늄막 - Google Patents
저저항 질화 티타늄막 Download PDFInfo
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- KR100970795B1 KR100970795B1 KR1020087003980A KR20087003980A KR100970795B1 KR 100970795 B1 KR100970795 B1 KR 100970795B1 KR 1020087003980 A KR1020087003980 A KR 1020087003980A KR 20087003980 A KR20087003980 A KR 20087003980A KR 100970795 B1 KR100970795 B1 KR 100970795B1
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- titanium nitride
- layer
- precursor
- titanium
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- NRTOMJZYCJJWKI-UHFFFAOYSA-N Titanium nitride Chemical compound [Ti]#N NRTOMJZYCJJWKI-UHFFFAOYSA-N 0.000 title claims abstract description 70
- 239000002243 precursor Substances 0.000 claims abstract description 90
- 238000000231 atomic layer deposition Methods 0.000 claims abstract description 80
- 239000000758 substrate Substances 0.000 claims abstract description 75
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 claims abstract description 26
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 claims abstract description 20
- 229910002091 carbon monoxide Inorganic materials 0.000 claims abstract description 20
- 239000010936 titanium Substances 0.000 claims abstract description 17
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 claims abstract description 16
- 229910052719 titanium Inorganic materials 0.000 claims abstract description 16
- 229910021529 ammonia Inorganic materials 0.000 claims abstract description 13
- 238000009792 diffusion process Methods 0.000 claims abstract description 12
- 239000000126 substance Substances 0.000 claims abstract description 10
- 230000004888 barrier function Effects 0.000 claims abstract description 4
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical group [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 claims abstract 5
- 230000027756 respiratory electron transport chain Effects 0.000 claims abstract 2
- 239000010410 layer Substances 0.000 claims description 111
- 238000000034 method Methods 0.000 claims description 68
- 239000007789 gas Substances 0.000 claims description 63
- 238000010926 purge Methods 0.000 claims description 38
- 239000000376 reactant Substances 0.000 claims description 36
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 32
- 229910052757 nitrogen Inorganic materials 0.000 claims description 16
- 230000015654 memory Effects 0.000 claims description 15
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 claims description 10
- 229910052751 metal Inorganic materials 0.000 claims description 10
- 239000002184 metal Substances 0.000 claims description 10
- 239000002356 single layer Substances 0.000 claims description 10
- 239000007788 liquid Substances 0.000 claims description 8
- NFHFRUOZVGFOOS-UHFFFAOYSA-N palladium;triphenylphosphane Chemical compound [Pd].C1=CC=CC=C1P(C=1C=CC=CC=1)C1=CC=CC=C1.C1=CC=CC=C1P(C=1C=CC=CC=1)C1=CC=CC=C1.C1=CC=CC=C1P(C=1C=CC=CC=1)C1=CC=CC=C1.C1=CC=CC=C1P(C=1C=CC=CC=1)C1=CC=CC=C1 NFHFRUOZVGFOOS-UHFFFAOYSA-N 0.000 claims description 7
- 229910052786 argon Inorganic materials 0.000 claims description 5
- 230000015572 biosynthetic process Effects 0.000 claims description 4
- 239000012159 carrier gas Substances 0.000 claims description 4
- 239000003638 chemical reducing agent Substances 0.000 claims description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims 5
- 229910052799 carbon Inorganic materials 0.000 claims 5
- 239000012495 reaction gas Substances 0.000 claims 3
- 238000001465 metallisation Methods 0.000 claims 2
- 238000000151 deposition Methods 0.000 abstract description 22
- 230000008021 deposition Effects 0.000 abstract description 17
- 239000000203 mixture Substances 0.000 abstract description 14
- 239000004020 conductor Substances 0.000 abstract description 9
- 229910052782 aluminium Inorganic materials 0.000 abstract description 5
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 abstract description 5
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 abstract description 3
- 229910052802 copper Inorganic materials 0.000 abstract description 3
- 239000010949 copper Substances 0.000 abstract description 3
- 229910021420 polycrystalline silicon Inorganic materials 0.000 abstract description 3
- 229920005591 polysilicon Polymers 0.000 abstract description 3
- 230000002265 prevention Effects 0.000 abstract 1
- 238000006243 chemical reaction Methods 0.000 description 42
- 239000000463 material Substances 0.000 description 37
- 239000010408 film Substances 0.000 description 29
- 230000008569 process Effects 0.000 description 17
- 239000004065 semiconductor Substances 0.000 description 13
- 238000005229 chemical vapour deposition Methods 0.000 description 9
- 239000006227 byproduct Substances 0.000 description 8
- 235000012431 wafers Nutrition 0.000 description 8
- 238000004519 manufacturing process Methods 0.000 description 7
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 5
- 238000010586 diagram Methods 0.000 description 5
- 229910052710 silicon Inorganic materials 0.000 description 5
- 239000010703 silicon Substances 0.000 description 5
- 239000007787 solid Substances 0.000 description 5
- 229910010421 TiNx Inorganic materials 0.000 description 4
- 230000008901 benefit Effects 0.000 description 4
- 230000002093 peripheral effect Effects 0.000 description 4
- 238000005240 physical vapour deposition Methods 0.000 description 4
- 239000010409 thin film Substances 0.000 description 4
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 3
- 238000009826 distribution Methods 0.000 description 3
- 239000001307 helium Substances 0.000 description 3
- 229910052734 helium Inorganic materials 0.000 description 3
- SWQJXJOGLNCZEY-UHFFFAOYSA-N helium atom Chemical compound [He] SWQJXJOGLNCZEY-UHFFFAOYSA-N 0.000 description 3
- 230000007246 mechanism Effects 0.000 description 3
- 230000007704 transition Effects 0.000 description 3
- KRHYYFGTRYWZRS-UHFFFAOYSA-N Fluorane Chemical compound F KRHYYFGTRYWZRS-UHFFFAOYSA-N 0.000 description 2
- 229910045601 alloy Inorganic materials 0.000 description 2
- 239000000956 alloy Substances 0.000 description 2
- 238000003877 atomic layer epitaxy Methods 0.000 description 2
- 239000003990 capacitor Substances 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 239000000356 contaminant Substances 0.000 description 2
- 238000011049 filling Methods 0.000 description 2
- 229910052732 germanium Inorganic materials 0.000 description 2
- GNPVGFCGXDBREM-UHFFFAOYSA-N germanium atom Chemical compound [Ge] GNPVGFCGXDBREM-UHFFFAOYSA-N 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 239000011261 inert gas Substances 0.000 description 2
- 238000002347 injection Methods 0.000 description 2
- 239000007924 injection Substances 0.000 description 2
- 239000012212 insulator Substances 0.000 description 2
- 239000012705 liquid precursor Substances 0.000 description 2
- 239000002052 molecular layer Substances 0.000 description 2
- 229910052754 neon Inorganic materials 0.000 description 2
- GKAOGPIIYCISHV-UHFFFAOYSA-N neon atom Chemical compound [Ne] GKAOGPIIYCISHV-UHFFFAOYSA-N 0.000 description 2
- 238000002360 preparation method Methods 0.000 description 2
- 229920006395 saturated elastomer Polymers 0.000 description 2
- 238000004544 sputter deposition Methods 0.000 description 2
- 229910000838 Al alloy Inorganic materials 0.000 description 1
- JBRZTFJDHDCESZ-UHFFFAOYSA-N AsGa Chemical compound [As]#[Ga] JBRZTFJDHDCESZ-UHFFFAOYSA-N 0.000 description 1
- 229910001218 Gallium arsenide Inorganic materials 0.000 description 1
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 1
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 description 1
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 239000007795 chemical reaction product Substances 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 238000009833 condensation Methods 0.000 description 1
- 230000005494 condensation Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- 238000006731 degradation reaction Methods 0.000 description 1
- 238000005137 deposition process Methods 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 239000003989 dielectric material Substances 0.000 description 1
- 239000002019 doping agent Substances 0.000 description 1
- 238000009429 electrical wiring Methods 0.000 description 1
- 238000005530 etching Methods 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 239000011344 liquid material Substances 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 239000012528 membrane Substances 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000004899 motility Effects 0.000 description 1
- 150000004767 nitrides Chemical class 0.000 description 1
- 230000006911 nucleation Effects 0.000 description 1
- 238000010899 nucleation Methods 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 229910021426 porous silicon Inorganic materials 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
- 239000012713 reactive precursor Substances 0.000 description 1
- 229910052594 sapphire Inorganic materials 0.000 description 1
- 239000010980 sapphire Substances 0.000 description 1
- 239000000377 silicon dioxide Substances 0.000 description 1
- 229910052814 silicon oxide Inorganic materials 0.000 description 1
- 238000001179 sorption measurement Methods 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 238000000859 sublimation Methods 0.000 description 1
- 230000008022 sublimation Effects 0.000 description 1
- OGIDPMRJRNCKJF-UHFFFAOYSA-N titanium oxide Inorganic materials [Ti]=O OGIDPMRJRNCKJF-UHFFFAOYSA-N 0.000 description 1
- 238000009834 vaporization Methods 0.000 description 1
- 230000008016 vaporization Effects 0.000 description 1
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- 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
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- 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
- H01L21/28562—Selective deposition
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- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C16/00—Chemical coating by decomposition of gaseous compounds, without leaving reaction products of surface material in the coating, i.e. chemical vapour deposition [CVD] processes
- C23C16/22—Chemical coating by decomposition of gaseous compounds, without leaving reaction products of surface material in the coating, i.e. chemical vapour deposition [CVD] processes characterised by the deposition of inorganic material, other than metallic material
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- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
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- C23C16/44—Chemical coating by decomposition of gaseous compounds, without leaving reaction products of surface material in the coating, i.e. chemical vapour deposition [CVD] processes characterised by the method of coating
- C23C16/455—Chemical coating by decomposition of gaseous compounds, without leaving reaction products of surface material in the coating, i.e. chemical vapour deposition [CVD] processes characterised by the method of coating characterised by the method used for introducing gases into reaction chamber or for modifying gas flows in reaction chamber
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- H01L21/28026—Making conductor-insulator-semiconductor electrodes the insulator being formed after the semiconductor body, the semiconductor being silicon characterised by the conductor
- H01L21/28035—Making conductor-insulator-semiconductor electrodes the insulator being formed after the semiconductor body, the semiconductor being silicon characterised by the conductor the final conductor layer next to the insulator being silicon, e.g. polysilicon, with or without impurities
- H01L21/28044—Making conductor-insulator-semiconductor electrodes the insulator being formed after the semiconductor body, the semiconductor being silicon characterised by the conductor the final conductor layer next to the insulator being silicon, e.g. polysilicon, with or without impurities the conductor comprising at least another non-silicon conductive layer
- H01L21/28061—Making conductor-insulator-semiconductor electrodes the insulator being formed after the semiconductor body, the semiconductor being silicon characterised by the conductor the final conductor layer next to the insulator being silicon, e.g. polysilicon, with or without impurities the conductor comprising at least another non-silicon conductive layer the conductor comprising a metal or metal silicide formed by deposition, e.g. sputter deposition, i.e. without a silicidation reaction
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- H01L21/71—Manufacture of specific parts of devices defined in group H01L21/70
- H01L21/768—Applying interconnections to be used for carrying current between separate components within a device comprising conductors and dielectrics
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- H01L29/40—Electrodes ; Multistep manufacturing processes therefor
- H01L29/43—Electrodes ; Multistep manufacturing processes therefor characterised by the materials of which they are formed
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- H01L29/4925—Metal-insulator-semiconductor electrodes, e.g. gates of MOSFET the conductor material next to the insulator being a silicon layer, e.g. polysilicon doped with boron, phosphorus or nitrogen with a multiple layer structure, e.g. several silicon layers with different crystal structure or grain arrangement
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- H01L21/02186—Forming insulating materials on a substrate characterised by the type of layer, e.g. type of material, porous/non-porous, pre-cursors, mixtures or laminates characterised by the material of the layer the material containing at least one metal element, e.g. metal oxides, metal nitrides, metal oxynitrides or metal carbides characterised by the metal the material containing titanium, e.g. TiO2
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- H01L21/02107—Forming insulating materials on a substrate
- H01L21/02225—Forming insulating materials on a substrate characterised by the process for the formation of the insulating layer
- H01L21/0226—Forming insulating materials on a substrate characterised by the process for the formation of the insulating layer formation by a deposition process
- H01L21/02263—Forming insulating materials on a substrate characterised by the process for the formation of the insulating layer formation by a deposition process deposition from the gas or vapour phase
- H01L21/02271—Forming insulating materials on a substrate characterised by the process for the formation of the insulating layer formation by a deposition process deposition from the gas or vapour phase deposition by decomposition or reaction of gaseous or vapour phase compounds, i.e. chemical vapour deposition
- H01L21/0228—Forming insulating materials on a substrate characterised by the process for the formation of the insulating layer formation by a deposition process deposition from the gas or vapour phase deposition by decomposition or reaction of gaseous or vapour phase compounds, i.e. chemical vapour deposition deposition by cyclic CVD, e.g. ALD, ALE, pulsed CVD
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- H01L21/02—Manufacture or treatment of semiconductor devices or of parts thereof
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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
- 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
- H01L21/314—Inorganic layers
- H01L21/3141—Deposition using atomic layer deposition techniques [ALD]
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- H01L28/40—Capacitors
- H01L28/60—Electrodes
- H01L28/75—Electrodes comprising two or more layers, e.g. comprising a barrier layer and a metal layer
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10S257/00—Active solid-state devices, e.g. transistors, solid-state diodes
- Y10S257/915—Active solid-state devices, e.g. transistors, solid-state diodes with titanium nitride portion or region
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Abstract
Description
Claims (29)
- 원자층 증착(atomic layer deposition)에 의해 기판 상에 질화 티타늄층을 형성하는 방법으로서,상기 기판을, 티타늄을 포함하는 적어도 하나의 전구체에 노출하는 단계; 및상기 기판을, 질소를 포함하는 적어도 하나의 반응물 및 탄소를 포함하고 질소를 포함하지 않는 적어도 하나의 반응물에 노출하는 단계를 포함하는 방법.
- 제1항에 있어서,상기 기판의 온도는 150℃ ~ 370℃의 범위에 있는 방법.
- 제2항에 있어서,상기 기판의 온도는 230℃인 방법.
- 제1항에 있어서,상기 적어도 하나의 전구체는 TDEAT(tetrakis diethylamido titanium)를 포함하는 방법.
- 제4항에 있어서,상기 전구체는 85℃ ~ 115℃의 온도를 갖는 액체이며, 상기 전구체로 50 sccm ~ 150 sccm의 흐름을 갖는 비활성 캐리어 기체가 통과하는 방법.
- 제1항에 있어서,상기 반응물들 중 적어도 하나는 환원제를 포함하는 방법.
- 제1항에 있어서,상기 질소를 포함하는 적어도 하나의 반응물은 암모니아(NH3)를 포함하는 방법.
- 제1항에 있어서,상기 탄소를 포함하고 질소를 포함하지 않는 적어도 하나의 반응물은 일산화탄소(CO)를 포함하는 방법.
- 제1항에 있어서,상기 기판을 상기 질소를 포함하는 적어도 하나의 반응물 및 상기 탄소를 포함하고 질소를 포함하지 않는 적어도 하나의 반응물에 노출하는 단계는, 실질적으로 동시에 발생하는 방법.
- 제1항에 있어서,상기 적어도 하나의 전구체는 TDEAT(tetrakis diethylamido titanium)를 포함하고, 상기 질소를 포함하는 적어도 하나의 반응물은 암모니아(NH3)를 포함하며, 상기 탄소를 포함하고 질소를 포함하지 않는 적어도 하나의 반응물은 일산화탄소(CO)를 포함하는 방법.
- 제1항에 있어서,질화 티타늄층의 형성은,상기 기판을, 티타늄을 포함하는 적어도 하나의 전구체 화학물질(chemical)에 노출하는 단계;상기 기판을, 제1 비반응성 퍼지 기체 흐름에 노출하는 단계;상기 기판을, 질소를 포함하는 적어도 하나의 반응 기체 및 탄소를 포함하고 질소를 포함하지 않는 적어도 하나의 반응 기체에 노출하는 단계;상기 기판을, 제2 비반응성 퍼지 기체 흐름에 노출하는 단계 - 상기 질화 티타늄층은 제1 두께를 가짐 - ; 및소정의 최종 두께에 도달할 때까지 반복하는 단계를 포함하는 방법.
- 제11항에 있어서,상기 제1 두께는 0.5 Å ~ 1.5 Å의 범위에 있는 방법.
- 제11항에 있어서,상기 최종 두께는 상기 제1 두께보다 정수배 더 두꺼운 방법.
- 제11항에 있어서,상기 제1 비반응성 퍼지 기체 및 상기 제2 비반응성 퍼지 기체는 동일한 것인 방법.
- 제14항에 있어서,상기 퍼지 기체는 아르곤인 방법.
- 제11항에 있어서,상기 질소를 포함하는 적어도 하나의 반응 기체는 암모니아(NH3)를 포함하는 방법.
- 제16항에 있어서,상기 암모니아(NH3)와 실질적으로 동시에 일산화탄소(CO)가 존재하는 방법.
- 제17항에 있어서,상기 CO의 체적은 상기 NH3 의 체적의 7배인 방법.
- 제17항에 있어서,상기 CO의 체적은 3500 sccm이며, 상기 NH3의 체적은 500 sccm인 방법.
- 제19항에 있어서,상기 기판의 온도는 150 ℃~ 370 ℃의 범위에 있으며, 상기 티타늄을 포함하는 전구체 화학물질은 TDEAT(tetrakis diethylamido titanium)을 포함하는 방법.
- 제11항에 있어서,상기 질화 티타늄층은 TiNx의 화학식(0.5 < X < 2.0) 및 800μohm-cm 보다 작은 비저항을 갖는 방법.
- 제21항에 있어서,상기 질화 티타늄층은 상기 기판의 지형적 스텝(topographical step)들 상에 75% 보다 큰 스텝 커버리지를 갖는 방법.
- 제11항에 있어서,상기 기판은 상기 질화 티타늄층 아래에 배치되는 도전층을 포함하는 방법.
- 제11항에 있어서,상기 방법은, 용량성 소자 상에 적어도 하나의 도전판을 형성하는 방법, 트랜지스터 소자 상에 도전성 신호 라인을 형성하는 방법, 또는 메모리 소자를 형성하는 방법 중 적어도 하나인 방법.
- 제11항에 있어서,상기 질화 티타늄층은 복수의 원자층 성막 사이클에 의해 형성되며, 각각의 원자층 성막 사이클은 0.1 nm 두께의 질화 티타늄의 연속된 단일층을 형성하는 방법.
- 제23항에 있어서,상기 도전층은, 패터닝된 금속 라인 내로 상기 도전층을 형성한 후에 H2 분위기에서 어닐링되는 방법.
- 제26항에 있어서,상기 방법은 전자 소자를 형성하는 방법이며,상기 전자 소자는,집적 회로 내에 질화 티타늄층을 퇴적한 원자층을 포함하는 도전층; 및TDEAT(tetrakis diethylamido titanium), 암모니아(NH3), 및 일산화탄소(CO)에 의해 형성되며, 80% 보다 큰 스텝 커버리지 및 600μohm-cm 보다 작은 비저항을 갖는 도전층을 포함하며,상기 질화 티타늄막은 TiNx의 화학식(0.7 < X < 1.1)을 가지며, 상기 질화 티타늄막은 복수의 연속하는 질화 티타늄의 단일층들을 포함하며, 각각의 단일층은 0.05 ~ 0.15 nm 범위의 실질적으로 유사한 두께를 갖는 방법.
- 제27항에 있어서,상기 전자 소자는 트랜지스터 소자 내의 신호 금속화 트레이스의 하부 부분 및 트랜지스터 소자 내의 신호 금속화 트레이스의 상부 부분 중 적어도 하나로서 상기 질화 티타늄을 갖는 메모리를 포함하는 방법.
- 제28항에 있어서,상기 전자 소자는 집적 회로 내에 CMOS 트랜지스터를 포함하며, 상기 CMOS 트랜지스터는 확산 배리어(barrier) 및 전자-이동 배리어 중 적어도 하나로서 티타늄층을 갖는 방법.
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US11/185,423 US7473637B2 (en) | 2005-07-20 | 2005-07-20 | ALD formed titanium nitride films |
US11/185,423 | 2005-07-20 |
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KR (1) | KR100970795B1 (ko) |
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KR20080026660A (ko) | 2008-03-25 |
CN101228617A (zh) | 2008-07-23 |
US7473637B2 (en) | 2009-01-06 |
JP2009503821A (ja) | 2009-01-29 |
US20070020923A1 (en) | 2007-01-25 |
EP1920456A4 (en) | 2011-01-19 |
CN101228617B (zh) | 2011-02-09 |
EP1920456B1 (en) | 2012-08-22 |
WO2007013924A1 (en) | 2007-02-01 |
JP4899171B2 (ja) | 2012-03-21 |
EP1920456A1 (en) | 2008-05-14 |
US8633110B2 (en) | 2014-01-21 |
US20120056326A1 (en) | 2012-03-08 |
US20070200243A1 (en) | 2007-08-30 |
TW200707546A (en) | 2007-02-16 |
TWI394203B (zh) | 2013-04-21 |
US8058729B2 (en) | 2011-11-15 |
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