JP2021522408A - ホウ素核形成層を利用した低温モリブデン膜堆積 - Google Patents
ホウ素核形成層を利用した低温モリブデン膜堆積 Download PDFInfo
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- ZOKXTWBITQBERF-UHFFFAOYSA-N Molybdenum Chemical compound [Mo] ZOKXTWBITQBERF-UHFFFAOYSA-N 0.000 title claims abstract description 283
- 229910052750 molybdenum Inorganic materials 0.000 title claims abstract description 282
- 239000011733 molybdenum Substances 0.000 title claims abstract description 282
- 229910052796 boron Inorganic materials 0.000 title claims abstract description 137
- ZOXJGFHDIHLPTG-UHFFFAOYSA-N Boron Chemical compound [B] ZOXJGFHDIHLPTG-UHFFFAOYSA-N 0.000 title claims abstract description 135
- 238000010899 nucleation Methods 0.000 title claims abstract description 134
- 230000006911 nucleation Effects 0.000 title claims abstract description 132
- 230000008021 deposition Effects 0.000 title claims abstract description 56
- 239000000758 substrate Substances 0.000 claims abstract description 108
- 238000000034 method Methods 0.000 claims abstract description 80
- 238000000151 deposition Methods 0.000 claims abstract description 67
- 239000000203 mixture Substances 0.000 claims description 46
- 238000006243 chemical reaction Methods 0.000 claims description 40
- 125000001309 chloro group Chemical group Cl* 0.000 claims description 13
- 239000004065 semiconductor Substances 0.000 claims description 7
- 238000000921 elemental analysis Methods 0.000 claims description 6
- 238000005229 chemical vapour deposition Methods 0.000 abstract description 31
- 230000008569 process Effects 0.000 abstract description 26
- 230000000694 effects Effects 0.000 abstract description 6
- 238000005530 etching Methods 0.000 abstract description 6
- 239000002245 particle Substances 0.000 abstract description 3
- 238000010586 diagram Methods 0.000 abstract 1
- 239000010408 film Substances 0.000 description 97
- 239000007789 gas Substances 0.000 description 20
- 239000000460 chlorine Substances 0.000 description 15
- 229910052751 metal Inorganic materials 0.000 description 15
- 239000002184 metal Substances 0.000 description 15
- ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 description 14
- 229910052801 chlorine Inorganic materials 0.000 description 14
- NRTOMJZYCJJWKI-UHFFFAOYSA-N Titanium nitride Chemical compound [Ti]#N NRTOMJZYCJJWKI-UHFFFAOYSA-N 0.000 description 13
- 239000001257 hydrogen Substances 0.000 description 13
- 229910052739 hydrogen Inorganic materials 0.000 description 13
- 238000004519 manufacturing process Methods 0.000 description 13
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 description 12
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 10
- 239000002243 precursor Substances 0.000 description 9
- 230000004888 barrier function Effects 0.000 description 8
- 238000000354 decomposition reaction Methods 0.000 description 8
- 239000000463 material Substances 0.000 description 8
- 239000012528 membrane Substances 0.000 description 8
- 239000007787 solid Substances 0.000 description 7
- 239000010409 thin film Substances 0.000 description 7
- 239000003708 ampul Substances 0.000 description 6
- 229910052786 argon Inorganic materials 0.000 description 6
- 238000000231 atomic layer deposition Methods 0.000 description 6
- 239000006227 byproduct Substances 0.000 description 5
- 230000003247 decreasing effect Effects 0.000 description 5
- 239000000126 substance Substances 0.000 description 5
- WSWMGHRLUYADNA-UHFFFAOYSA-N 7-nitro-1,2,3,4-tetrahydroquinoline Chemical compound C1CCNC2=CC([N+](=O)[O-])=CC=C21 WSWMGHRLUYADNA-UHFFFAOYSA-N 0.000 description 4
- 230000015572 biosynthetic process Effects 0.000 description 4
- 238000009792 diffusion process Methods 0.000 description 4
- 150000002431 hydrogen Chemical class 0.000 description 4
- 238000012986 modification Methods 0.000 description 4
- 230000004048 modification Effects 0.000 description 4
- 238000000859 sublimation Methods 0.000 description 4
- 230000008022 sublimation Effects 0.000 description 4
- 238000007740 vapor deposition Methods 0.000 description 4
- 229910004298 SiO 2 Inorganic materials 0.000 description 3
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 3
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 3
- 150000002739 metals Chemical class 0.000 description 3
- 229910052710 silicon Inorganic materials 0.000 description 3
- 239000010703 silicon Substances 0.000 description 3
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 2
- 150000001638 boron Chemical class 0.000 description 2
- 150000001639 boron compounds Chemical class 0.000 description 2
- 239000012159 carrier gas Substances 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 239000011261 inert gas Substances 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- 238000004377 microelectronic Methods 0.000 description 2
- 238000002156 mixing Methods 0.000 description 2
- 150000002751 molybdenum Chemical class 0.000 description 2
- -1 organometallic molybdenum compound Chemical class 0.000 description 2
- 229910052760 oxygen Inorganic materials 0.000 description 2
- 239000001301 oxygen Substances 0.000 description 2
- 238000000623 plasma-assisted chemical vapour deposition Methods 0.000 description 2
- 229910021420 polycrystalline silicon Inorganic materials 0.000 description 2
- 229920005591 polysilicon Polymers 0.000 description 2
- 238000005019 vapor deposition process Methods 0.000 description 2
- KPZGRMZPZLOPBS-UHFFFAOYSA-N 1,3-dichloro-2,2-bis(chloromethyl)propane Chemical compound ClCC(CCl)(CCl)CCl KPZGRMZPZLOPBS-UHFFFAOYSA-N 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
- 229910004200 TaSiN Inorganic materials 0.000 description 1
- 229910008482 TiSiN Inorganic materials 0.000 description 1
- 229910008807 WSiN Inorganic materials 0.000 description 1
- 239000002253 acid Substances 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
- 238000004458 analytical method Methods 0.000 description 1
- IVHJCRXBQPGLOV-UHFFFAOYSA-N azanylidynetungsten Chemical compound [W]#N IVHJCRXBQPGLOV-UHFFFAOYSA-N 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 239000003153 chemical reaction reagent Substances 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 230000001186 cumulative effect Effects 0.000 description 1
- 125000000058 cyclopentadienyl group Chemical group C1(=CC=CC1)* 0.000 description 1
- 238000005137 deposition process Methods 0.000 description 1
- 230000001627 detrimental effect Effects 0.000 description 1
- 238000004090 dissolution Methods 0.000 description 1
- 239000002019 doping agent Substances 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- ZSWFCLXCOIISFI-UHFFFAOYSA-N endo-cyclopentadiene Natural products C1C=CC=C1 ZSWFCLXCOIISFI-UHFFFAOYSA-N 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 230000006870 function Effects 0.000 description 1
- 238000007654 immersion Methods 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 239000004615 ingredient Substances 0.000 description 1
- QRXWMOHMRWLFEY-UHFFFAOYSA-N isoniazide Chemical compound NNC(=O)C1=CC=NC=C1 QRXWMOHMRWLFEY-UHFFFAOYSA-N 0.000 description 1
- 239000003446 ligand Substances 0.000 description 1
- 239000004973 liquid crystal related substance Substances 0.000 description 1
- 238000011068 loading method Methods 0.000 description 1
- 230000015654 memory Effects 0.000 description 1
- 230000005055 memory storage Effects 0.000 description 1
- 229910001507 metal halide Inorganic materials 0.000 description 1
- 150000005309 metal halides Chemical class 0.000 description 1
- 239000005078 molybdenum compound Substances 0.000 description 1
- 150000004767 nitrides Chemical class 0.000 description 1
- 125000004430 oxygen atom Chemical group O* 0.000 description 1
- 238000006303 photolysis reaction Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000010926 purge Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 239000003870 refractory metal Substances 0.000 description 1
- 238000004626 scanning electron microscopy Methods 0.000 description 1
- 238000004062 sedimentation Methods 0.000 description 1
- 235000012239 silicon dioxide Nutrition 0.000 description 1
- 239000000377 silicon dioxide Substances 0.000 description 1
- 229910052814 silicon oxide Inorganic materials 0.000 description 1
- MZLGASXMSKOWSE-UHFFFAOYSA-N tantalum nitride Chemical compound [Ta]#N MZLGASXMSKOWSE-UHFFFAOYSA-N 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 230000001988 toxicity Effects 0.000 description 1
- 231100000419 toxicity Toxicity 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
Classifications
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- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- 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
- C23C16/02—Pretreatment of the material to be coated
- C23C16/0272—Deposition of sub-layers, e.g. to promote the adhesion of the main coating
-
- 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
- H01L21/70—Manufacture or treatment of devices consisting of a plurality of solid state components formed in or on a common substrate or of parts thereof; Manufacture of integrated circuit devices or of parts thereof
- 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
- H01L21/76838—Applying interconnections to be used for carrying current between separate components within a device comprising conductors and dielectrics characterised by the formation and the after-treatment of the conductors
- H01L21/76841—Barrier, adhesion or liner layers
- H01L21/76871—Layers specifically deposited to enhance or enable the nucleation of further layers, i.e. seed layers
- H01L21/76876—Layers specifically deposited to enhance or enable the nucleation of further layers, i.e. seed layers for deposition from the gas phase, e.g. CVD
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- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- 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
- C23C16/06—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 metallic material
- C23C16/08—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 metallic material from metal halides
- C23C16/14—Deposition of only one other metal element
-
- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- 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
- C23C16/30—Deposition of compounds, mixtures or solid solutions, e.g. borides, carbides, nitrides
- C23C16/40—Oxides
- C23C16/405—Oxides of refractory metals or yttrium
-
- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- 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
- C23C16/44—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
- C23C16/45523—Pulsed gas flow or change of composition over time
- C23C16/45525—Atomic layer deposition [ALD]
- C23C16/45527—Atomic layer deposition [ALD] characterized by the ALD cycle, e.g. different flows or temperatures during half-reactions, unusual pulsing sequence, use of precursor mixtures or auxiliary reactants or activations
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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
- H01L21/28008—Making conductor-insulator-semiconductor electrodes
- H01L21/28017—Making conductor-insulator-semiconductor electrodes the insulator being formed after the semiconductor body, the semiconductor being silicon
- 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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- 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
- H01L21/70—Manufacture or treatment of devices consisting of a plurality of solid state components formed in or on a common substrate or of parts thereof; Manufacture of integrated circuit devices or of parts thereof
- 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
- H01L21/76838—Applying interconnections to be used for carrying current between separate components within a device comprising conductors and dielectrics characterised by the formation and the after-treatment of the conductors
- H01L21/76841—Barrier, adhesion or liner layers
- H01L21/76853—Barrier, adhesion or liner layers characterized by particular after-treatment steps
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Abstract
【選択図】なし
Description
この出願は、その開示が全ての目的のために全体として参照により本明細書に組み込まれる、2016年11月23日に出願された米国特許仮出願第62/425,704号明細書の利益を主張する、2017年11月22日に出願された米国特許出願第15/820,640号明細書の一部継続である。
Claims (20)
- モリブデン層を作成する方法であって、前記方法は、
基板上のホウ素含有核形成層とモリブデンおよび塩素原子を含有する分子を含む蒸気組成物との反応であって、前記基板は450℃から550℃の間の温度であり、前記反応は、前記ホウ素核形成層の少なくとも一部を消費し、前記基板の上にモリブデン核形成層を形成する、反応を含む方法。 - 前記ホウ素含有核形成層の厚さが約5Åから約50Åの間である、請求項1に記載の方法。
- 前記ホウ素含有核形成層は、前記モリブデン層が元素分析による5重量%未満のホウ素、任意選択的に1重量%未満のホウ素を含むように、前記反応によって実質的に消費される、請求項1に記載の方法。
- 前記基板の上に前記ホウ素含有核形成層を堆積することであって、前記基板は300℃から550℃の間の温度である、ことを含む、請求項1に記載の方法。
- 前記基板の上の前記モリブデン核形成層の上にさらなるホウ素含有核形成層を堆積することであって、前記基板は300℃から550℃の間の温度である、さらなるホウ素含有核形成層を堆積することと、
前記さらなるホウ素含有核形成層とモリブデンおよび塩素原子を含有する分子を含む蒸気組成物との反応であって、前記基板は450℃から550℃の間の温度であり、前記反応は、前記さらなるホウ素核形成層の少なくとも一部を消費し、さらなるモリブデン核形成層を形成する、反応と
をさらに含む、請求項1に記載の方法。 - 前記さらなるホウ素含有核形成層の厚さが約5Åから約50Åの間である、請求項5に記載の方法。
- 前記さらなるホウ素含有核形成層の堆積された厚さが、前記基板の上の前記ホウ素含有核形成層の堆積された厚さよりも薄い、請求項5に記載の方法。
- 第1の期間にわたり前記基板の上に前記ホウ素含有核形成層を蒸着させること、および第2の期間にわたり前記さらなるホウ素含有核形成層を蒸着させることを含み、前記第2の期間は前記第1の期間よりも短い、請求項5に記載の方法。
- 前記さらなるホウ素含有核形成層は、前記さらなるモリブデン層が元素分析による5重量%未満のホウ素、任意選択的に1重量%未満のホウ素を含むように、前記反応によって実質的に消費される、請求項5に記載の方法。
- 堆積および反応の前記ステップが繰り返され、これにより、複数のさらなるモリブデン核形成層を形成する、請求項5に記載の方法。
- 1つまたは複数の前記ホウ素含有核形成層の前記反応中、前記基板の前記温度が450℃から480℃の間である、請求項1に記載の方法。
- 前記蒸気組成物が10トルから60トルの間の圧力である、請求項1に記載の方法。
- 前記蒸気組成物が還元ガスを実質的に含まない、請求項1に記載の方法。
- 前記基板上の前記モリブデン核形成層、またはさらなるモリブデン核形成層が、上部モリブデン核形成層を構成する、請求項1に記載の方法。
- 450℃から550℃の間の温度で前記上部モリブデン核形成層の上にバルクモリブデン層を形成するためにモリブデン錯体を蒸着させることを含む、請求項14に記載の方法。
- 前記モリブデン錯体がMoCl5またはMoOCl4を含む、請求項15に記載の方法。
- 前記モリブデン膜の厚さが200オングストローム以上であり、前記バルクモリブデン層の抵抗率が、前記モリブデン核形成層のない700℃の基板上の前記モリブデン錯体から堆積された±20%の実質的に類似の厚さのバルクモリブデン層の抵抗率の±20%である、請求項15に記載の方法。
- 前記バルクモリブデン層および1つ以上のモリブデン核形成層を含むモリブデン膜を作成することを含み、前記膜は、200オングストローム以上のモリブデン膜厚で20μΩ・cm未満の室温で測定された電気抵抗率を有する、請求項15に記載の方法。
- 前記基板が1つ以上のモリブデン核形成層を含む、請求項1に記載の方法。
- 前記基板が半導体基板を含む、請求項1に記載の方法。
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