WO2016181918A1 - 異種複核錯体からなる化学蒸着用原料及び該化学蒸着用原料を用いた化学蒸着法 - Google Patents
異種複核錯体からなる化学蒸着用原料及び該化学蒸着用原料を用いた化学蒸着法 Download PDFInfo
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- WO2016181918A1 WO2016181918A1 PCT/JP2016/063695 JP2016063695W WO2016181918A1 WO 2016181918 A1 WO2016181918 A1 WO 2016181918A1 JP 2016063695 W JP2016063695 W JP 2016063695W WO 2016181918 A1 WO2016181918 A1 WO 2016181918A1
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- vapor deposition
- chemical vapor
- raw material
- thin film
- complex
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- 238000005229 chemical vapour deposition Methods 0.000 title claims abstract description 45
- 238000000034 method Methods 0.000 title claims description 16
- 239000007858 starting material Substances 0.000 title abstract description 6
- 229910052751 metal Inorganic materials 0.000 claims abstract description 67
- 239000002184 metal Substances 0.000 claims abstract description 67
- 239000010409 thin film Substances 0.000 claims abstract description 54
- 229910052723 transition metal Inorganic materials 0.000 claims abstract description 42
- 150000003624 transition metals Chemical class 0.000 claims abstract description 42
- 239000002131 composite material Substances 0.000 claims abstract description 19
- 150000002739 metals Chemical class 0.000 claims abstract description 17
- 125000000058 cyclopentadienyl group Chemical group C1(=CC=CC1)* 0.000 claims abstract description 16
- 125000002915 carbonyl group Chemical group [*:2]C([*:1])=O 0.000 claims abstract description 15
- ZSWFCLXCOIISFI-UHFFFAOYSA-N endo-cyclopentadiene Natural products C1C=CC=C1 ZSWFCLXCOIISFI-UHFFFAOYSA-N 0.000 claims abstract description 13
- 125000000217 alkyl group Chemical group 0.000 claims abstract description 10
- 125000001424 substituent group Chemical group 0.000 claims abstract description 9
- 125000004435 hydrogen atom Chemical group [H]* 0.000 claims abstract description 7
- 150000002736 metal compounds Chemical class 0.000 claims abstract description 6
- 239000002994 raw material Substances 0.000 claims description 40
- 229910052742 iron Inorganic materials 0.000 claims description 21
- 229910052748 manganese Inorganic materials 0.000 claims description 20
- 229910052707 ruthenium Inorganic materials 0.000 claims description 14
- 229910052759 nickel Inorganic materials 0.000 claims description 9
- 125000004432 carbon atom Chemical group C* 0.000 claims description 7
- 229910052802 copper Inorganic materials 0.000 claims description 7
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 5
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 claims description 5
- 229910052739 hydrogen Inorganic materials 0.000 claims description 5
- 239000001257 hydrogen Substances 0.000 claims description 5
- 229910052741 iridium Inorganic materials 0.000 claims description 5
- 229910052703 rhodium Inorganic materials 0.000 claims description 5
- 239000000758 substrate Substances 0.000 claims description 5
- 229910052799 carbon Inorganic materials 0.000 claims description 4
- 229910052804 chromium Inorganic materials 0.000 claims description 4
- 229910052750 molybdenum Inorganic materials 0.000 claims description 4
- 229910052697 platinum Inorganic materials 0.000 claims description 4
- 229910052721 tungsten Inorganic materials 0.000 claims description 4
- 125000000484 butyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])C([H])([H])[H] 0.000 claims description 3
- 239000007789 gas Substances 0.000 claims description 3
- 125000002496 methyl group Chemical group [H]C([H])([H])* 0.000 claims description 3
- 229910052758 niobium Inorganic materials 0.000 claims description 3
- 125000001436 propyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])[H] 0.000 claims description 3
- 239000000126 substance Substances 0.000 claims description 3
- 229910052715 tantalum Inorganic materials 0.000 claims description 3
- 229910052720 vanadium Inorganic materials 0.000 claims description 3
- 125000004429 atom Chemical group 0.000 claims description 2
- 125000001495 ethyl group Chemical group [H]C([H])([H])C([H])([H])* 0.000 claims description 2
- 238000007740 vapor deposition Methods 0.000 claims 1
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- 239000010408 film Substances 0.000 description 28
- XEEYBQQBJWHFJM-UHFFFAOYSA-N iron Substances [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 23
- 239000011572 manganese Substances 0.000 description 22
- WYURNTSHIVDZCO-UHFFFAOYSA-N Tetrahydrofuran Chemical compound C1CCOC1 WYURNTSHIVDZCO-UHFFFAOYSA-N 0.000 description 20
- 230000015572 biosynthetic process Effects 0.000 description 17
- 238000006243 chemical reaction Methods 0.000 description 16
- -1 5 -cyclopentadienyl Chemical group 0.000 description 15
- 238000005755 formation reaction Methods 0.000 description 13
- PWHULOQIROXLJO-UHFFFAOYSA-N Manganese Chemical compound [Mn] PWHULOQIROXLJO-UHFFFAOYSA-N 0.000 description 12
- 125000004989 dicarbonyl group Chemical group 0.000 description 12
- 239000003446 ligand Substances 0.000 description 12
- KJTLSVCANCCWHF-UHFFFAOYSA-N Ruthenium Chemical compound [Ru] KJTLSVCANCCWHF-UHFFFAOYSA-N 0.000 description 10
- 238000000746 purification Methods 0.000 description 10
- YLQBMQCUIZJEEH-UHFFFAOYSA-N tetrahydrofuran Natural products C=1C=COC=1 YLQBMQCUIZJEEH-UHFFFAOYSA-N 0.000 description 10
- YMWUJEATGCHHMB-UHFFFAOYSA-N Dichloromethane Chemical compound ClCCl YMWUJEATGCHHMB-UHFFFAOYSA-N 0.000 description 9
- PXHVJJICTQNCMI-UHFFFAOYSA-N nickel Substances [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 8
- 238000003756 stirring Methods 0.000 description 8
- 229910017052 cobalt Inorganic materials 0.000 description 7
- 239000010941 cobalt Substances 0.000 description 7
- GUTLYIVDDKVIGB-UHFFFAOYSA-N cobalt atom Chemical compound [Co] GUTLYIVDDKVIGB-UHFFFAOYSA-N 0.000 description 7
- 239000010949 copper Substances 0.000 description 7
- 238000009834 vaporization Methods 0.000 description 7
- 230000008016 vaporization Effects 0.000 description 7
- 0 *C1C(*)=C(*)C(*)=C1* Chemical compound *C1C(*)=C(*)C(*)=C1* 0.000 description 6
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 description 5
- 229910004298 SiO 2 Inorganic materials 0.000 description 5
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 5
- 238000004440 column chromatography Methods 0.000 description 5
- 238000000151 deposition Methods 0.000 description 5
- 230000008021 deposition Effects 0.000 description 5
- 239000003480 eluent Substances 0.000 description 5
- 238000000605 extraction Methods 0.000 description 5
- 238000004519 manufacturing process Methods 0.000 description 5
- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Chemical compound [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 description 5
- 239000011541 reaction mixture Substances 0.000 description 5
- 239000010948 rhodium Substances 0.000 description 5
- 239000004065 semiconductor Substances 0.000 description 5
- 229910052708 sodium Inorganic materials 0.000 description 5
- 239000011734 sodium Substances 0.000 description 5
- 238000000859 sublimation Methods 0.000 description 5
- 230000008022 sublimation Effects 0.000 description 5
- 238000003786 synthesis reaction Methods 0.000 description 5
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 4
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- 239000011651 chromium Substances 0.000 description 4
- 239000000463 material Substances 0.000 description 4
- 238000002360 preparation method Methods 0.000 description 4
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- 229910002027 silica gel Inorganic materials 0.000 description 4
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- KDLHZDBZIXYQEI-UHFFFAOYSA-N Palladium Chemical compound [Pd] KDLHZDBZIXYQEI-UHFFFAOYSA-N 0.000 description 3
- 150000001875 compounds Chemical class 0.000 description 3
- 238000000354 decomposition reaction Methods 0.000 description 3
- QFEOTYVTTQCYAZ-UHFFFAOYSA-N dimanganese decacarbonyl Chemical compound [Mn].[Mn].[O+]#[C-].[O+]#[C-].[O+]#[C-].[O+]#[C-].[O+]#[C-].[O+]#[C-].[O+]#[C-].[O+]#[C-].[O+]#[C-].[O+]#[C-] QFEOTYVTTQCYAZ-UHFFFAOYSA-N 0.000 description 3
- 238000010438 heat treatment Methods 0.000 description 3
- BRLPZEFDPRKYSC-UHFFFAOYSA-M iodoruthenium Chemical compound I[Ru] BRLPZEFDPRKYSC-UHFFFAOYSA-M 0.000 description 3
- 239000012046 mixed solvent Substances 0.000 description 3
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- 239000010955 niobium Substances 0.000 description 3
- 230000000704 physical effect Effects 0.000 description 3
- 238000003908 quality control method Methods 0.000 description 3
- 229910052702 rhenium Inorganic materials 0.000 description 3
- 238000012360 testing method Methods 0.000 description 3
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 2
- 229910020598 Co Fe Inorganic materials 0.000 description 2
- 229910002519 Co-Fe Inorganic materials 0.000 description 2
- 229910002551 Fe-Mn Inorganic materials 0.000 description 2
- BOTDANWDWHJENH-UHFFFAOYSA-N Tetraethyl orthosilicate Chemical compound CCO[Si](OCC)(OCC)OCC BOTDANWDWHJENH-UHFFFAOYSA-N 0.000 description 2
- 238000004833 X-ray photoelectron spectroscopy Methods 0.000 description 2
- 238000004458 analytical method Methods 0.000 description 2
- 239000012298 atmosphere Substances 0.000 description 2
- 230000004888 barrier function Effects 0.000 description 2
- 150000004696 coordination complex Chemical class 0.000 description 2
- 239000010931 gold Substances 0.000 description 2
- XMBWDFGMSWQBCA-UHFFFAOYSA-N hydrogen iodide Chemical compound I XMBWDFGMSWQBCA-UHFFFAOYSA-N 0.000 description 2
- 238000010030 laminating Methods 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- 229910052710 silicon Inorganic materials 0.000 description 2
- 239000010936 titanium Substances 0.000 description 2
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 description 1
- ZOKXTWBITQBERF-UHFFFAOYSA-N Molybdenum Chemical compound [Mo] ZOKXTWBITQBERF-UHFFFAOYSA-N 0.000 description 1
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 1
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 description 1
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-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
- 229910021529 ammonia Inorganic materials 0.000 description 1
- 238000000280 densification Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 1
- 229910052737 gold Inorganic materials 0.000 description 1
- 125000005842 heteroatom Chemical group 0.000 description 1
- 238000000265 homogenisation Methods 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- GKOZUEZYRPOHIO-UHFFFAOYSA-N iridium atom Chemical compound [Ir] GKOZUEZYRPOHIO-UHFFFAOYSA-N 0.000 description 1
- 125000000959 isobutyl group Chemical group [H]C([H])([H])C([H])(C([H])([H])[H])C([H])([H])* 0.000 description 1
- 125000001449 isopropyl group Chemical group [H]C([H])([H])C([H])(*)C([H])([H])[H] 0.000 description 1
- RYZCLUQMCYZBJQ-UHFFFAOYSA-H lead(2+);dicarbonate;dihydroxide Chemical compound [OH-].[OH-].[Pb+2].[Pb+2].[Pb+2].[O-]C([O-])=O.[O-]C([O-])=O RYZCLUQMCYZBJQ-UHFFFAOYSA-H 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 239000011733 molybdenum Substances 0.000 description 1
- 125000004108 n-butyl group Chemical group [H]C([H])([H])C([H])([H])C([H])([H])C([H])([H])* 0.000 description 1
- 125000004123 n-propyl group Chemical group [H]C([H])([H])C([H])([H])C([H])([H])* 0.000 description 1
- GUCVJGMIXFAOAE-UHFFFAOYSA-N niobium atom Chemical compound [Nb] GUCVJGMIXFAOAE-UHFFFAOYSA-N 0.000 description 1
- 239000012299 nitrogen atmosphere Substances 0.000 description 1
- 229910052762 osmium Inorganic materials 0.000 description 1
- SYQBFIAQOQZEGI-UHFFFAOYSA-N osmium atom Chemical compound [Os] SYQBFIAQOQZEGI-UHFFFAOYSA-N 0.000 description 1
- 229910052763 palladium Inorganic materials 0.000 description 1
- 238000001556 precipitation Methods 0.000 description 1
- WUAPFZMCVAUBPE-UHFFFAOYSA-N rhenium atom Chemical compound [Re] WUAPFZMCVAUBPE-UHFFFAOYSA-N 0.000 description 1
- MHOVAHRLVXNVSD-UHFFFAOYSA-N rhodium atom Chemical compound [Rh] MHOVAHRLVXNVSD-UHFFFAOYSA-N 0.000 description 1
- 125000002914 sec-butyl group Chemical group [H]C([H])([H])C([H])([H])C([H])(*)C([H])([H])[H] 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
- 229910052814 silicon oxide Inorganic materials 0.000 description 1
- 229910052709 silver Inorganic materials 0.000 description 1
- 239000004332 silver Substances 0.000 description 1
- GUVRBAGPIYLISA-UHFFFAOYSA-N tantalum atom Chemical compound [Ta] GUVRBAGPIYLISA-UHFFFAOYSA-N 0.000 description 1
- 125000000999 tert-butyl group Chemical group [H]C([H])([H])C(*)(C([H])([H])[H])C([H])([H])[H] 0.000 description 1
- 238000002230 thermal chemical vapour deposition Methods 0.000 description 1
- 229910052719 titanium Inorganic materials 0.000 description 1
- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 description 1
- 239000010937 tungsten Substances 0.000 description 1
- LEONUFNNVUYDNQ-UHFFFAOYSA-N vanadium atom Chemical compound [V] LEONUFNNVUYDNQ-UHFFFAOYSA-N 0.000 description 1
- 230000004580 weight loss Effects 0.000 description 1
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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
- C23C16/18—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 metallo-organic compounds
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07F—ACYCLIC, CARBOCYCLIC OR HETEROCYCLIC COMPOUNDS CONTAINING ELEMENTS OTHER THAN CARBON, HYDROGEN, HALOGEN, OXYGEN, NITROGEN, SULFUR, SELENIUM OR TELLURIUM
- C07F13/00—Compounds containing elements of Groups 7 or 17 of the Periodic Table
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07F—ACYCLIC, CARBOCYCLIC OR HETEROCYCLIC COMPOUNDS CONTAINING ELEMENTS OTHER THAN CARBON, HYDROGEN, HALOGEN, OXYGEN, NITROGEN, SULFUR, SELENIUM OR TELLURIUM
- C07F15/00—Compounds containing elements of Groups 8, 9, 10 or 18 of the Periodic Table
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07F—ACYCLIC, CARBOCYCLIC OR HETEROCYCLIC COMPOUNDS CONTAINING ELEMENTS OTHER THAN CARBON, HYDROGEN, HALOGEN, OXYGEN, NITROGEN, SULFUR, SELENIUM OR TELLURIUM
- C07F15/00—Compounds containing elements of Groups 8, 9, 10 or 18 of the Periodic Table
- C07F15/0006—Compounds containing elements of Groups 8, 9, 10 or 18 of the Periodic Table compounds of the platinum group
- C07F15/0046—Ruthenium compounds
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07F—ACYCLIC, CARBOCYCLIC OR HETEROCYCLIC COMPOUNDS CONTAINING ELEMENTS OTHER THAN CARBON, HYDROGEN, HALOGEN, OXYGEN, NITROGEN, SULFUR, SELENIUM OR TELLURIUM
- C07F15/00—Compounds containing elements of Groups 8, 9, 10 or 18 of the Periodic Table
- C07F15/02—Iron compounds
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07F—ACYCLIC, CARBOCYCLIC OR HETEROCYCLIC COMPOUNDS CONTAINING ELEMENTS OTHER THAN CARBON, HYDROGEN, HALOGEN, OXYGEN, NITROGEN, SULFUR, SELENIUM OR TELLURIUM
- C07F15/00—Compounds containing elements of Groups 8, 9, 10 or 18 of the Periodic Table
- C07F15/04—Nickel compounds
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07F—ACYCLIC, CARBOCYCLIC OR HETEROCYCLIC COMPOUNDS CONTAINING ELEMENTS OTHER THAN CARBON, HYDROGEN, HALOGEN, OXYGEN, NITROGEN, SULFUR, SELENIUM OR TELLURIUM
- C07F15/00—Compounds containing elements of Groups 8, 9, 10 or 18 of the Periodic Table
- C07F15/06—Cobalt compounds
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07F—ACYCLIC, CARBOCYCLIC OR HETEROCYCLIC COMPOUNDS CONTAINING ELEMENTS OTHER THAN CARBON, HYDROGEN, HALOGEN, OXYGEN, NITROGEN, SULFUR, SELENIUM OR TELLURIUM
- C07F17/00—Metallocenes
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- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07F—ACYCLIC, CARBOCYCLIC OR HETEROCYCLIC COMPOUNDS CONTAINING ELEMENTS OTHER THAN CARBON, HYDROGEN, HALOGEN, OXYGEN, NITROGEN, SULFUR, SELENIUM OR TELLURIUM
- C07F17/00—Metallocenes
- C07F17/02—Metallocenes of metals of Groups 8, 9 or 10 of the Periodic System
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- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07F—ACYCLIC, CARBOCYCLIC OR HETEROCYCLIC COMPOUNDS CONTAINING ELEMENTS OTHER THAN CARBON, HYDROGEN, HALOGEN, OXYGEN, NITROGEN, SULFUR, SELENIUM OR TELLURIUM
- C07F19/00—Metal compounds according to more than one of main groups C07F1/00 - C07F17/00
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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
-
- 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
- C23C16/16—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 carbonyl compounds
Definitions
- the present invention relates to a raw material for chemical vapor deposition, which is composed of a heteropolynuclear complex, for producing a composite metal thin film or a composite metal compound thin film composed of different types of metals by chemical vapor deposition such as CVD or ALD. More specifically, the present invention relates to a raw material for chemical vapor deposition which can form a thin film composed of a composite metal in one film formation and can form a film at a low temperature (about 200 ° C.) while having appropriate thermal stability.
- various metal thin films are used to satisfy the required characteristics of the devices.
- a chemical vapor deposition method such as a CVD method which can form a uniform and homogeneous film can be used, which has a high deposition rate, follows a three-dimensional shape of a device, and the like.
- ligands such as cyclopentadienyl
- central metal central metal
- mononuclear complexes a complex comprising a plurality of metals of the same type as a central metal is also known (hereinafter, referred to as homogeneous dinuclear complex).
- a metal thin film for use in devices such as semiconductors thin films composed of a plurality of types of metals are often used, using these mononuclear complexes and homogeneous binuclear complexes as raw materials for chemical vapor deposition.
- a plurality of metal thin films are applied in order to have various required characteristics, and by laminating these, it is possible to achieve densification and high integration while satisfying the required characteristics. There is.
- a structure in which a thin film of ruthenium or the like as a base for introducing a barrier layer is laminated together with a thin film of MnO or MnSiO as a barrier layer for preventing copper diffusion is used. It is done.
- Patent Document 1 and Patent Document 2 etc. can be mentioned as an example in which a thin film made of a plurality of metals is formed.
- Patent document 1 forms multiple metal layers which consist of a single metal by laminating
- Patent Document 2 forms a composite metal thin film containing a plurality of metals as an inert liquid in which a plurality of mononuclear complexes are mixed in advance and dissolved or emulsified.
- Patent Document 1 when forming a plurality of thin films sequentially using a plurality of complexes, the number of steps required for film formation is large, the setting of conditions is complicated, and the quality control of raw materials takes time and effort. The cost of using multiple raw materials is high.
- Patent Document 2 when a plurality of metal complexes are mixed in advance as in Patent Document 2, the vaporization characteristics of the complexes are different, so the metal ratio in the thin film tends to fluctuate, and it becomes difficult to form a uniform film.
- the materials may react with each other before film formation to cause deterioration.
- the present invention is made based on the above background, is a raw material for chemical vapor deposition capable of forming plural kinds of metal thin films by a simple process, and can form a homogeneous thin film, and Provide easy-to-use quality control.
- the present inventors have replaced the application of a plurality of complexes of different metal species as in the prior art, and a complex comprising a plurality of metals as central metals in one complex (hereinafter referred to In order to synthesize a dinuclear complex) and apply it as a raw material for chemical vapor deposition, the following study was conducted.
- the heterobinuclear complex When the heterobinuclear complex is applied as a raw material for chemical vapor deposition, first of all, when a metal thin film is formed by a chemical vapor deposition method, a plurality of types of metals as central metals are both precipitated. The deposition ratio of the plurality of metals is also preferably substantially constant. Moreover, when forming a thin film by a chemical vapor deposition method, it has a decomposition characteristic capable of forming a film at a low temperature, and generally has a sufficient thermal stability without being thermally decomposed in the vaporization stage. Needs to be included. As a result of intensive studies on the complexes having the above-mentioned properties, the present inventors have conceived of the raw material for chemical vapor deposition of the present invention which is composed of a heterodinuclear complex having the following constitution.
- the first transition metal (M 1 ) as a central metal and the second to the transition metal (M 2)
- a chemical vapor deposition raw material made of different dinuclear complex cyclopentadienyl (L) and carbonyl coordinated.
- M 1 and M 2 are mutually different transition metals.
- X is 1 or more and 2 or less, y is 1 or more and 9 or less, and x and y are both integers.
- R 1 to R 5 are each hydrogen An atom, any one kind of an alkyl group having 1 to 5 carbon atoms)
- the complex in the present invention is a heterobinuclear complex comprising a plurality of transition metals, ie, the first transition metal (M 1 ) and the second transition metal (M 2 ), as central metals of the complex.
- the metal is coordinated with cyclopentadienyl (L) and carbonyl (-CO) as ligands.
- the ligand cyclopentadienyl has a relatively strong bonding force with the transition metal
- the ligand carbonyl has a relatively weak bonding force with the transition metal. It is a complex having a high thermal stability. Furthermore, the design of the carbon number of the alkyl group of the substituents R 1 to R 5 makes it possible to adjust the vapor pressure and the melting point.
- heterobinuclear complex which constitutes the raw material for chemical vapor deposition according to the present invention will be described in detail.
- x, y indicating the number of cyclopentadienyl (L) and carbonyl (-CO) in the raw material of the present invention
- x is 1 or more and 2 or less
- y is 1 or more and 9 or less
- x and y are both integers.
- x is 1 or more and 2 or less
- y is 2 or more and 7 or less.
- x and y have a preferable range due to the correlation according to the type (valence number) of the transition metal, the number of x, and the like.
- y is preferably 3 to 7
- at least one of M 1 or M 2 is Co, Rh and Ir
- y is preferably 2 to 6 .
- M 1 is any one of Ru, Mn, and Fe
- M 2 is any one of V, Cr, Mn, Fe, Co, and Ni
- M 1 and M 2 are different.
- N is 3 Or more and not more than 5.
- R 1 to R 5 is a hydrogen atom or any one kind of an alkyl group having 1 to 5 carbon atoms.
- M 1 and M 2 are transition metals different from each other.
- the transition metal for example, titanium (Ti), vanadium (V), chromium (Cr), manganese (Mn), iron (Fe), cobalt (Co), nickel (Ni), copper (Cu), niobium (Nb) ), Molybdenum (Mo), ruthenium (Ru), rhodium (Rh), palladium (Pd), silver (Ag), tantalum (Ta), tungsten (W), rhenium (Re), osmium (Os), iridium (Ir) And platinum (Pt) and gold (Au).
- the transition metal is preferably Mn, Fe, Co, Ni, Cu, Nb, Mo, Ru, Rh, Ta, W, Ir, Pt, and Mn, Fe, Co, Ni, Cu, Mo, Ru, W, Pt Particularly preferred.
- Particularly preferred transition metals as M 1 are Ru, Mn and Fe, and particularly preferred transition metals as M 2 are Mn, Fe, Co and Ni.
- the raw material of the present invention is formed by coordination of cyclopentadienyl (L) and carbonyl to a central metal consisting of two transition metals.
- the present inventors conceived of this raw material based on the following reasons for each constitution of the central metal and the ligand coordinated to it.
- the ligand “cyclopentadienyl (L)” has a small molecular weight when coordinated to a transition metal together with a carbonyl, and becomes a compound that is easily vaporized as a raw material for chemical vapor deposition, and also a vaporization step before film formation. Therefore, it is difficult to be thermally decomposed and to realize stable vaporization easily.
- the second transition metal M 2 in which only carbonyl is coordinated is more complex than the first transition metal M 1 in which cyclopentadienyl is coordinated It tends to precipitate in metal thin films.
- M 1 is any one of Ru, Mn, and Fe
- M 2 is any one of V, Cr, Mn, Fe, Co, and Ni
- M 1 and M 2 are different.
- N is 3 Or more and not more than 5.
- R 1 to R 5 are a hydrogen atom or an alkyl group having 1 to 5 carbon atoms.
- R 1 to R 5 of cyclopentadienyl are each a hydrogen atom or any one kind of an alkyl group having 1 to 5 carbon atoms, and a hydrogen atom, a methyl group, an ethyl group, a propyl group or a butyl group Any one of the groups is preferred. If the carbon chain becomes too long, the vapor pressure of the complex tends to decrease, and if it is a long chain alkyl group having more than 5 carbon atoms, vaporization of the complex becomes difficult.
- R 1 to R 5 preferably have a total carbon number of 1 or more and 4 or less for all substituents.
- the thermal stability of the complex is easier to maintain by limiting the sum of all substituents in addition to limiting the carbon number of one substituent.
- substituents R 1 to R 5 either linear or branched alkyl groups can be applied. For example, when a propyl group or a butyl group is applied, an n-propyl group, an iso-propyl group, an n-butyl group, an iso-butyl group, a sec-butyl group, or a tert-butyl group can be applied.
- the total number of carbonyl (CO) is 1 or more and 9 or less, and it is preferable to have 2 or 3 carbonyls as a ligand of the first transition metal (M 1 ).
- the coordination number (n) of carbonyl as a ligand of the second transition metal (M 2 ) is preferably 3 or more and 5 or less, and particularly preferably 4 or 5.
- heterodinuclear complexes that are specifically preferred for the chemical vapor deposition material of the present invention will be exemplified below.
- the raw material for chemical vapor deposition according to the present invention described above uses a first cyclopentadienyl derivative having a first transition metal (M 1 ) as a central metal as a starting material and a plurality of second transition metals (M 2 ) as a central metal. It can be produced by reacting with a carbonyl coordinated complex of
- the raw material for chemical vapor deposition according to the present invention is useful for forming a composite metal thin film by a CVD method.
- a raw material composed of a heterobinuclear complex is vaporized to be a reaction gas, the reaction gas is introduced onto the surface of the substrate, the complex is decomposed, and a plurality of metals are deposited.
- the heating temperature at the time of film formation is preferably 150 ° C. to 350 ° C. If the temperature is less than 150 ° C., the film formation reaction does not easily proceed, and it is difficult to obtain the necessary film thickness. When the temperature exceeds 350 ° C., it becomes difficult to form a uniform thin film.
- a single metal material can form a composite metal thin film or a composite metal compound thin film containing a plurality of metals.
- the raw material of the present invention has a high vapor pressure, can produce a thin film at a low temperature, and also has appropriate thermal stability, and is suitable for film formation by a chemical vapor deposition method.
- TG curve of the metal complex manufactured by embodiment Sectional photograph of the metal thin film formed into a film by embodiment. Ru / Mn ratio in the metal thin film formed into a film by embodiment.
- the following five types of complexes were synthesized.
- the physical properties of the synthesized complex were evaluated, and film formation tests were conducted as raw materials for chemical vapor deposition.
- Example 1 Preparation of Heterobinuclear Complex (Pentacarbonyl [dicarbonyl (( 5 -cyclopentadienyl) ruthenium] manganese (Mn-Ru)) in which the First Transition Metal is Ruthenium and the Second Transition Metal is Manganese did.
- the reaction scheme for synthesis is as follows. Hereinafter, the manufacturing process will be described in detail.
- Example 2 Preparation of heterobinuclear complex (pentacarbonyl [dicarbonyl ( ⁇ 5 -cyclopentadienyl) iron] manganese (Fe-Mn)) in which the first transition metal is iron and the second transition metal is manganese did.
- the reaction scheme for synthesis is as follows. Hereinafter, the manufacturing process will be described in detail.
- Extraction was performed with hexane, and purification was performed by column chromatography using silica gel as a carrier and hexane as an eluent. Furthermore, sublimation purification was performed to obtain 1.86 g (5.0 mmol) of the target product pentacarbonyl [dicarbonyl ( ⁇ 5 -cyclopentadienyl) iron] manganese (Fe-Mn) (yield 50%) .
- Example 3 Preparation of a heterobinuclear complex (dicarbonyl ( 5 5 -cyclopentadienyl) (tetracarbonyl cobalt) ruthenium (Co-Ru)) in which the first transition metal is ruthenium and the second transition metal is cobalt did.
- the reaction scheme for synthesis is as follows. Hereinafter, the manufacturing process will be described in detail.
- Example 4 Preparation of heterobinuclear complex (dicarbonyl ( ⁇ 5 -cyclopentadienyl) (tetracarbonyl cobalt) iron (Co-Fe)) in which the first transition metal is iron and the second transition metal is cobalt did.
- the reaction scheme for synthesis is as follows. Hereinafter, the manufacturing process will be described in detail.
- Example 5 Heterobinuclear complex (pentacarbonyl [dicarbonyl ( ⁇ 5 -methylcyclopentadienyl) ruthenium] manganese (Mn-Ru) coordinated with a cyclopentadienyl derivative having one methyl group as a substituent) Manufactured.
- the reaction scheme for synthesis is as follows. Hereinafter, the manufacturing process will be described in detail.
- the metal thin film was formed on a substrate (15 mm ⁇ 15 mm) in which a silicon oxide film was deposited on a silicon substrate using tetraethoxysilane (TEOS).
- TEOS tetraethoxysilane
- a hot wall type thermal CVD apparatus was used as a film forming apparatus.
- the reaction gas (hydrogen) was flowed at a constant flow rate using a mass flow controller.
- the film formation conditions are as follows. The result of having observed the cross section of the metal thin film in FIG. 2 by SEM is shown.
- Substrate SiO 2 Deposition temperature 250 ° C. Sample temperature: 70 ° C Deposition pressure: 5 torr Reactive gas (hydrogen) flow rate: 10 sccm Deposition time: 20 minutes
- the metal thin film formed as described above was shiny silver white and had a film thickness of 74.9 nm. Further, as shown in FIG. 2, the metal thin film formed on SiO 2 had a smooth and uniform surface.
- the Ru / Mn ratio was analyzed as the abundance of the metal element by X-ray photoelectron spectroscopy (XPS).
- XPS X-ray photoelectron spectroscopy
- KRATOS Axis Nova manufactured by Shimadzu Corporation was used as a measuring apparatus.
- the thin film (film thickness 74.9 nm) was analyzed in the depth direction from near the surface to near the interface with the SiO 2 film.
- the analysis was performed to the extent where the influence is small.
- the results are shown in FIG.
- the horizontal axis in FIG. 3 corresponds to the film thickness (74.9 nm) from the surface of the thin film to the front near the interface with the SiO 2 film, as described above.
- the formation of a composite metal thin film from a single raw material can be realized by a chemical vapor deposition method, and the homogenization of the thin film and the quality control of the raw material become easy. For this reason, it can apply to the use which adopts the structure which laminated a plurality of metal layers, such as a copper diffused layer of a semiconductor device.
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Abstract
Description
成膜温度250℃
試料温度:70℃
成膜圧力:5torr
反応ガス(水素)流量:10sccm
成膜時間:20分
Claims (7)
- 遷移金属は、Mn、Fe、Co、Ni、Cu、Nb、Mo、Ru、Rh、Ta、W、Ir、Ptのいずれかである請求項1に記載された化学蒸着用原料。
- M1はRu、Mn、Feのいずれか1種であり、M2はMn、Fe、Co、Niのいずれか1種であり、M1とM2は異なる請求項1に記載された化学蒸着用原料。
- R1~R5は、それぞれ、水素原子、メチル基、エチル基、プロピル基、ブチル基のいずれか1種である請求項1~4のいずれかに記載された化学蒸着用原料。
- R1~R5は、全ての置換基の総炭素数が1以上4以下である請求項1~5のいずれかに記載された化学蒸着用原料。
- 異種複核錯体からなる原料を気化して原料ガスとし、前記原料ガスを基板表面に導入しつつ加熱する複合金属薄膜又は複合金属化合物薄膜の化学蒸着法において、
前記原料として請求項1~請求項6のいずれかに記載された化学蒸着用原料を用いる化学蒸着法。
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US15/564,819 US20180119274A1 (en) | 2015-05-12 | 2016-05-09 | Chemical deposition raw material including heterogeneous polynuclear complex and chemical deposition method using the chemical deposition raw material |
KR1020177030166A KR102161526B1 (ko) | 2015-05-12 | 2016-05-09 | 이종 복핵 착체를 포함하는 화학 증착용 원료 및 해당 화학 증착용 원료를 사용한 화학 증착법 |
EP16792643.5A EP3296424A4 (en) | 2015-05-12 | 2016-05-09 | Chemical vapor deposition starting material comprising heterogeneous polynuclear complex, and chemical vapor deposition method using said chemical vapor deposition starting material |
US16/277,789 US10526698B2 (en) | 2015-05-12 | 2019-02-15 | Chemical deposition raw material including heterogeneous polynuclear complex and chemical deposition method using the chemical deposition raw material |
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US16/277,789 Division US10526698B2 (en) | 2015-05-12 | 2019-02-15 | Chemical deposition raw material including heterogeneous polynuclear complex and chemical deposition method using the chemical deposition raw material |
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JP6321252B1 (ja) * | 2017-03-24 | 2018-05-09 | 田中貴金属工業株式会社 | イリジウム錯体からなる化学蒸着用原料及び該化学蒸着用原料を用いた化学蒸着法 |
JP7235466B2 (ja) * | 2018-01-26 | 2023-03-08 | レール・リキード-ソシエテ・アノニム・プール・レテュード・エ・レクスプロワタシオン・デ・プロセデ・ジョルジュ・クロード | ランタノイド化合物、ランタノイド含有薄膜、および該ランタノイド化合物を用いたランタノイド含有薄膜の成膜方法 |
US20220235455A1 (en) * | 2019-06-17 | 2022-07-28 | Tanaka Kikinzoku Kogyo K.K. | Starting material for chemical vapor deposition composed of organomanganese compound, and chemical vapor deposition method using said starting material for chemical vapor deposition |
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US5171610A (en) * | 1990-08-28 | 1992-12-15 | The Regents Of The University Of Calif. | Low temperature photochemical vapor deposition of alloy and mixed metal oxide films |
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JPH02210054A (ja) * | 1989-02-09 | 1990-08-21 | Polymer Processing Res Inst | 糸条を緯とする広巾経緯積層布体の製法。 |
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US5171610A (en) * | 1990-08-28 | 1992-12-15 | The Regents Of The University Of Calif. | Low temperature photochemical vapor deposition of alloy and mixed metal oxide films |
Non-Patent Citations (3)
Title |
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LIU DAVID K.: "Photochemical vapor deposition of mixed-metal thin films from organometallic precursors containing heteronuclear metal-metal bonds", MATERIALS LETTERS, vol. 10, no. 7 - 8, January 1991 (1991-01-01), pages 318 - 322, XP024151250 * |
See also references of EP3296424A4 * |
SHYU SHIN-GUANG: "Mixed-metal oxide films via a heterobimetallic complex as an MOCVD single- source precursor", CHEMICAL COMMUNICATIONS, 1996, pages 2239 - 2240, XP055329163 * |
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JP2016211049A (ja) | 2016-12-15 |
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TW201710278A (zh) | 2017-03-16 |
KR20170128583A (ko) | 2017-11-22 |
US20190177837A1 (en) | 2019-06-13 |
US20180119274A1 (en) | 2018-05-03 |
EP3296424A1 (en) | 2018-03-21 |
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US10526698B2 (en) | 2020-01-07 |
TWI596102B (zh) | 2017-08-21 |
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