WO2023003398A1 - 실리콘-함유 막의 형성 방법 및 이에 의해 형성된 실리콘-함유 막 - Google Patents
실리콘-함유 막의 형성 방법 및 이에 의해 형성된 실리콘-함유 막 Download PDFInfo
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- WO2023003398A1 WO2023003398A1 PCT/KR2022/010713 KR2022010713W WO2023003398A1 WO 2023003398 A1 WO2023003398 A1 WO 2023003398A1 KR 2022010713 W KR2022010713 W KR 2022010713W WO 2023003398 A1 WO2023003398 A1 WO 2023003398A1
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- silicon
- containing film
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- 229910052710 silicon Inorganic materials 0.000 title claims abstract description 271
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 title claims abstract description 269
- 239000010703 silicon Substances 0.000 title claims abstract description 269
- 238000000034 method Methods 0.000 title claims abstract description 64
- 239000000203 mixture Substances 0.000 claims abstract description 86
- 150000001875 compounds Chemical class 0.000 claims abstract description 71
- 239000012686 silicon precursor Substances 0.000 claims abstract description 57
- 239000000758 substrate Substances 0.000 claims abstract description 38
- 239000002131 composite material Substances 0.000 claims abstract description 20
- 229910044991 metal oxide Inorganic materials 0.000 claims abstract description 14
- 150000004706 metal oxides Chemical class 0.000 claims abstract description 14
- 238000000231 atomic layer deposition Methods 0.000 claims description 53
- 238000000151 deposition Methods 0.000 claims description 38
- 239000001257 hydrogen Substances 0.000 claims description 32
- 229910052739 hydrogen Inorganic materials 0.000 claims description 32
- 239000007789 gas Substances 0.000 claims description 29
- 230000008021 deposition Effects 0.000 claims description 24
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 claims description 18
- 150000002431 hydrogen Chemical class 0.000 claims description 18
- 238000006243 chemical reaction Methods 0.000 claims description 17
- 125000004178 (C1-C4) alkyl group Chemical group 0.000 claims description 15
- 238000005229 chemical vapour deposition Methods 0.000 claims description 15
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 claims description 14
- 238000005530 etching Methods 0.000 claims description 13
- MWUXSHHQAYIFBG-UHFFFAOYSA-N Nitric oxide Chemical compound O=[N] MWUXSHHQAYIFBG-UHFFFAOYSA-N 0.000 claims description 10
- 229910052786 argon Inorganic materials 0.000 claims description 9
- 239000007788 liquid Substances 0.000 claims description 9
- 125000000882 C2-C6 alkenyl group Chemical group 0.000 claims description 8
- 229910052760 oxygen Inorganic materials 0.000 claims description 7
- 239000012159 carrier gas Substances 0.000 claims description 6
- 239000001301 oxygen Substances 0.000 claims description 6
- -1 oxygen nitride Chemical class 0.000 claims description 6
- CBENFWSGALASAD-UHFFFAOYSA-N Ozone Chemical compound [O-][O+]=O CBENFWSGALASAD-UHFFFAOYSA-N 0.000 claims description 5
- 230000005587 bubbling Effects 0.000 claims description 5
- KRHYYFGTRYWZRS-UHFFFAOYSA-N Fluorane Chemical compound F KRHYYFGTRYWZRS-UHFFFAOYSA-N 0.000 claims description 4
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 4
- 239000003085 diluting agent Substances 0.000 claims description 4
- MHAJPDPJQMAIIY-UHFFFAOYSA-N Hydrogen peroxide Chemical compound OO MHAJPDPJQMAIIY-UHFFFAOYSA-N 0.000 claims description 3
- 229910052757 nitrogen Inorganic materials 0.000 claims description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 2
- 239000010408 film Substances 0.000 description 264
- VLKZOEOYAKHREP-UHFFFAOYSA-N n-Hexane Chemical compound CCCCCC VLKZOEOYAKHREP-UHFFFAOYSA-N 0.000 description 32
- 230000000052 comparative effect Effects 0.000 description 17
- 238000003756 stirring Methods 0.000 description 17
- MZRVEZGGRBJDDB-UHFFFAOYSA-N N-Butyllithium Chemical compound [Li]CCCC MZRVEZGGRBJDDB-UHFFFAOYSA-N 0.000 description 12
- 239000000126 substance Substances 0.000 description 12
- 229910004298 SiO 2 Inorganic materials 0.000 description 10
- 229910052751 metal Inorganic materials 0.000 description 10
- 239000002184 metal Substances 0.000 description 10
- 125000000217 alkyl group Chemical group 0.000 description 9
- 150000004767 nitrides Chemical class 0.000 description 9
- 239000000243 solution Substances 0.000 description 9
- 238000001004 secondary ion mass spectrometry Methods 0.000 description 8
- 150000003839 salts Chemical class 0.000 description 7
- 239000004065 semiconductor Substances 0.000 description 7
- ROSDSFDQCJNGOL-UHFFFAOYSA-N Dimethylamine Chemical compound CNC ROSDSFDQCJNGOL-UHFFFAOYSA-N 0.000 description 6
- 230000008569 process Effects 0.000 description 6
- 238000006467 substitution reaction Methods 0.000 description 6
- 238000005160 1H NMR spectroscopy Methods 0.000 description 5
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 5
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 5
- 150000001412 amines Chemical class 0.000 description 5
- 230000005540 biological transmission Effects 0.000 description 5
- 238000002360 preparation method Methods 0.000 description 5
- 239000002904 solvent Substances 0.000 description 5
- 229910052799 carbon Inorganic materials 0.000 description 4
- DLEDOFVPSDKWEF-UHFFFAOYSA-N lithium butane Chemical compound [Li+].CCC[CH2-] DLEDOFVPSDKWEF-UHFFFAOYSA-N 0.000 description 4
- 239000000047 product Substances 0.000 description 4
- YWXVUMOZMSDHIV-UHFFFAOYSA-N C[SiH](N[SiH](C)C)C.CN([Si](C)(C)C)[SiH3] Chemical compound C[SiH](N[SiH](C)C)C.CN([Si](C)(C)C)[SiH3] YWXVUMOZMSDHIV-UHFFFAOYSA-N 0.000 description 3
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 3
- YXFVVABEGXRONW-UHFFFAOYSA-N Toluene Chemical compound CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 description 3
- 238000011161 development Methods 0.000 description 3
- 230000018109 developmental process Effects 0.000 description 3
- 125000005265 dialkylamine group Chemical group 0.000 description 3
- LIKFHECYJZWXFJ-UHFFFAOYSA-N dimethyldichlorosilane Chemical compound C[Si](C)(Cl)Cl LIKFHECYJZWXFJ-UHFFFAOYSA-N 0.000 description 3
- 238000004821 distillation Methods 0.000 description 3
- LIWAQLJGPBVORC-UHFFFAOYSA-N ethylmethylamine Chemical compound CCNC LIWAQLJGPBVORC-UHFFFAOYSA-N 0.000 description 3
- 238000001914 filtration Methods 0.000 description 3
- 150000004820 halides Chemical class 0.000 description 3
- 239000012535 impurity Substances 0.000 description 3
- 239000000376 reactant Substances 0.000 description 3
- 239000010409 thin film Substances 0.000 description 3
- RTZKZFJDLAIYFH-UHFFFAOYSA-N Diethyl ether Chemical compound CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 description 2
- OAKJQQAXSVQMHS-UHFFFAOYSA-N Hydrazine Chemical compound NN OAKJQQAXSVQMHS-UHFFFAOYSA-N 0.000 description 2
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 2
- WYURNTSHIVDZCO-UHFFFAOYSA-N Tetrahydrofuran Chemical compound C1CCOC1 WYURNTSHIVDZCO-UHFFFAOYSA-N 0.000 description 2
- ZQPJZZQRZDOMFD-UHFFFAOYSA-N [amino(methyl)silyl]methane Chemical compound C[SiH](C)N ZQPJZZQRZDOMFD-UHFFFAOYSA-N 0.000 description 2
- VAUCILWNLYXVIS-UHFFFAOYSA-N [dimethyl-(trimethylsilylamino)silyl]methane Chemical compound C[Si](C)(C)N[Si](C)(C)C.C[Si](C)(C)N[Si](C)(C)C VAUCILWNLYXVIS-UHFFFAOYSA-N 0.000 description 2
- 229910021529 ammonia Inorganic materials 0.000 description 2
- 238000004458 analytical method Methods 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 238000010790 dilution Methods 0.000 description 2
- 239000012895 dilution Substances 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 229910052744 lithium Inorganic materials 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 125000002496 methyl group Chemical group [H]C([H])([H])* 0.000 description 2
- 230000035515 penetration Effects 0.000 description 2
- 229920001296 polysiloxane Polymers 0.000 description 2
- 239000002243 precursor Substances 0.000 description 2
- 230000002265 prevention Effects 0.000 description 2
- 239000012495 reaction gas Substances 0.000 description 2
- 239000012266 salt solution Substances 0.000 description 2
- 150000003377 silicon compounds Chemical class 0.000 description 2
- 229910052708 sodium Inorganic materials 0.000 description 2
- ZUHZGEOKBKGPSW-UHFFFAOYSA-N tetraglyme Chemical compound COCCOCCOCCOCCOC ZUHZGEOKBKGPSW-UHFFFAOYSA-N 0.000 description 2
- GIRKRMUMWJFNRI-UHFFFAOYSA-N tris(dimethylamino)silicon Chemical compound CN(C)[Si](N(C)C)N(C)C GIRKRMUMWJFNRI-UHFFFAOYSA-N 0.000 description 2
- 230000008016 vaporization Effects 0.000 description 2
- 102100032047 Alsin Human genes 0.000 description 1
- 101710187109 Alsin Proteins 0.000 description 1
- 241000252506 Characiformes Species 0.000 description 1
- 229910003855 HfAlO Inorganic materials 0.000 description 1
- 229910004129 HfSiO Inorganic materials 0.000 description 1
- 229910003697 SiBN Inorganic materials 0.000 description 1
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 description 1
- 229910008482 TiSiN Inorganic materials 0.000 description 1
- 229910006501 ZrSiO Inorganic materials 0.000 description 1
- NHFPCBQVZUCYNA-UHFFFAOYSA-N [SiH](C)(C)N([SiH](C)C)[Si](C)(C)N Chemical compound [SiH](C)(C)N([SiH](C)C)[Si](C)(C)N NHFPCBQVZUCYNA-UHFFFAOYSA-N 0.000 description 1
- QQIRAVWVGBTHMJ-UHFFFAOYSA-N [dimethyl-(trimethylsilylamino)silyl]methane;lithium Chemical compound [Li].C[Si](C)(C)N[Si](C)(C)C QQIRAVWVGBTHMJ-UHFFFAOYSA-N 0.000 description 1
- 150000001335 aliphatic alkanes Chemical class 0.000 description 1
- 229910052783 alkali metal Inorganic materials 0.000 description 1
- 150000001340 alkali metals Chemical class 0.000 description 1
- 125000003342 alkenyl group Chemical group 0.000 description 1
- 150000003973 alkyl amines Chemical class 0.000 description 1
- 239000007864 aqueous solution Substances 0.000 description 1
- 125000004429 atom Chemical group 0.000 description 1
- 230000004888 barrier function Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 125000000484 butyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])C([H])([H])[H] 0.000 description 1
- 239000006227 byproduct Substances 0.000 description 1
- 125000004432 carbon atom Chemical group C* 0.000 description 1
- 239000007795 chemical reaction product Substances 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- HPNMFZURTQLUMO-UHFFFAOYSA-N diethylamine Chemical compound CCNCC HPNMFZURTQLUMO-UHFFFAOYSA-N 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 125000001495 ethyl group Chemical group [H]C([H])([H])C([H])([H])* 0.000 description 1
- 230000014509 gene expression Effects 0.000 description 1
- 229910052736 halogen Inorganic materials 0.000 description 1
- 150000002367 halogens Chemical class 0.000 description 1
- 239000001307 helium Substances 0.000 description 1
- 229910052734 helium Inorganic materials 0.000 description 1
- SWQJXJOGLNCZEY-UHFFFAOYSA-N helium atom Chemical compound [He] SWQJXJOGLNCZEY-UHFFFAOYSA-N 0.000 description 1
- 230000010354 integration Effects 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
- QRXWMOHMRWLFEY-UHFFFAOYSA-N isoniazide Chemical compound NNC(=O)C1=CC=NC=C1 QRXWMOHMRWLFEY-UHFFFAOYSA-N 0.000 description 1
- 125000001449 isopropyl group Chemical group [H]C([H])([H])C([H])(*)C([H])([H])[H] 0.000 description 1
- 229910001507 metal halide Inorganic materials 0.000 description 1
- NCFSDGWPAKOPOU-UHFFFAOYSA-N n-ethylethanamine;lithium Chemical compound [Li].CCNCC NCFSDGWPAKOPOU-UHFFFAOYSA-N 0.000 description 1
- 230000000704 physical effect Effects 0.000 description 1
- 125000002924 primary amino group Chemical group [H]N([H])* 0.000 description 1
- 125000001436 propyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])[H] 0.000 description 1
- 230000009257 reactivity Effects 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
- 229910052814 silicon oxide Inorganic materials 0.000 description 1
- 229910052709 silver Inorganic materials 0.000 description 1
- 239000004332 silver Substances 0.000 description 1
- 238000002791 soaking Methods 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 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
- YLQBMQCUIZJEEH-UHFFFAOYSA-N tetrahydrofuran Natural products C=1C=COC=1 YLQBMQCUIZJEEH-UHFFFAOYSA-N 0.000 description 1
- 239000006200 vaporizer Substances 0.000 description 1
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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
- C23C16/30—Deposition of compounds, mixtures or solid solutions, e.g. borides, carbides, nitrides
- C23C16/40—Oxides
- C23C16/401—Oxides containing silicon
- C23C16/402—Silicon dioxide
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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
- H01L21/02104—Forming layers
- 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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- C07F—ACYCLIC, CARBOCYCLIC OR HETEROCYCLIC COMPOUNDS CONTAINING ELEMENTS OTHER THAN CARBON, HYDROGEN, HALOGEN, OXYGEN, NITROGEN, SULFUR, SELENIUM OR TELLURIUM
- C07F7/00—Compounds containing elements of Groups 4 or 14 of the Periodic Table
- C07F7/02—Silicon compounds
- C07F7/08—Compounds having one or more C—Si linkages
- C07F7/10—Compounds having one or more C—Si linkages containing nitrogen having a Si-N linkage
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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
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- 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
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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
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- C23C16/30—Deposition of compounds, mixtures or solid solutions, e.g. borides, carbides, nitrides
- C23C16/32—Carbides
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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
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- C23C16/30—Deposition of compounds, mixtures or solid solutions, e.g. borides, carbides, nitrides
- C23C16/34—Nitrides
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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
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- C23C16/30—Deposition of compounds, mixtures or solid solutions, e.g. borides, carbides, nitrides
- C23C16/40—Oxides
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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
- C23C16/22—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
- C23C16/401—Oxides containing silicon
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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
- C23C16/44—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
- C23C16/448—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 generating reactive gas streams, e.g. by evaporation or sublimation of precursor materials
- C23C16/4481—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 generating reactive gas streams, e.g. by evaporation or sublimation of precursor materials by evaporation using carrier gas in contact with the source material
- C23C16/4482—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 generating reactive gas streams, e.g. by evaporation or sublimation of precursor materials by evaporation using carrier gas in contact with the source material by bubbling of carrier gas through liquid source material
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- 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
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- 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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- 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
- C23C16/45536—Use of plasma, radiation or electromagnetic fields
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- 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]
- C23C16/45553—Atomic layer deposition [ALD] characterized by the use of precursors specially adapted for ALD
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- 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
- H01L21/02104—Forming layers
- H01L21/02107—Forming insulating materials on a substrate
- H01L21/02109—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
- H01L21/02112—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
- H01L21/02123—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 silicon
- H01L21/02126—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 silicon the material containing Si, O, and at least one of H, N, C, F, or other non-metal elements, e.g. SiOC, SiOC:H or SiONC
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- H01L21/02107—Forming insulating materials on a substrate
- H01L21/02109—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
- H01L21/02112—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
- H01L21/02123—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 silicon
- H01L21/02164—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 silicon the material being a silicon oxide, e.g. SiO2
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- H01L21/02107—Forming insulating materials on a substrate
- H01L21/02109—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
- H01L21/02205—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 the layer being characterised by the precursor material for deposition
- H01L21/02208—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 the layer being characterised by the precursor material for deposition the precursor containing a compound comprising Si
- H01L21/02211—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 the layer being characterised by the precursor material for deposition the precursor containing a compound comprising Si the compound being a silane, e.g. disilane, methylsilane or chlorosilane
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- H01L21/02107—Forming insulating materials on a substrate
- H01L21/02109—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
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- 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
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Definitions
- the present invention relates to a method for forming a silicon-containing film and a silicon-containing film formed thereby, and more particularly, to a silicon-containing film-forming composition comprising a silicon precursor compound having a specific structure at a high temperature of 600 ° C. or higher. - A method for forming a containing film, and a silicon-containing film formed thereby.
- a silicon-containing film is one of the essential thin films for driving non-semiconductor devices such as logic devices as well as semiconductors such as DRAM, flash memory, resistive memory (ReRAM), or phase change memory (PCRAM).
- non-semiconductor devices such as logic devices as well as semiconductors such as DRAM, flash memory, resistive memory (ReRAM), or phase change memory (PCRAM).
- DRAM non-semiconductor devices
- flash memory flash memory
- ReRAM resistive memory
- PCRAM phase change memory
- a silicon-containing oxide film has a high deposition rate, whereas a silicon-containing nitride film has a slow deposition rate.
- a silicon-containing film that can be selectively deposited only on a desired location is required there is.
- a composition for forming a silicon-containing film including a silicon precursor compound usable for atomic layer deposition (ALD) is required.
- composition for forming a film including a silicon precursor compound suitable for ALD, forming a uniform and dense film, showing resistance to stress, and having self-limiting film growth characteristics even at a high temperature of 600 ° C. or higher, and silicon-containing using the same
- Patent Document 1 Korean Patent Registration No. 10-0734393
- An object of the present invention is to provide a method for forming a silicon-containing film at a high temperature of 600° C. or higher using a composition for forming a silicon-containing film containing a silicon precursor compound having a specific structure, and a silicon-containing film formed thereby.
- Another object of the present invention is to provide a composition for forming a silicon-containing film including a silicon precursor compound having a specific structure.
- the present invention uses a composition for forming a silicon-containing film containing a silicon precursor compound represented by the following formula (1) on a substrate by chemical vapor deposition (CVD) or atomic layer deposition (ALD).
- CVD chemical vapor deposition
- ALD atomic layer deposition
- a method for forming a silicon-containing film is provided, wherein:
- R 11 and R 12 are each independently selected from the group consisting of hydrogen and a linear or branched C 1 -C 4 alkyl group;
- R 13 to R 17 are each independently selected from the group consisting of hydrogen, a linear or branched C 1 -C 4 alkyl group, and a linear or branched C 2 -C 6 alkenyl group;
- At least one of R 13 and R 14 is not hydrogen, and at least one of R 15 to R 17 is not hydrogen.
- the present invention includes a silicon precursor compound represented by Formula 1, and a silicon-containing film is formed by chemical vapor deposition (CVD) or atomic layer deposition (ALD) at a temperature of 600 ° C or higher. It is used for deposition, and the silicon-containing film includes at least one selected from the group consisting of a silicon-containing oxide film and a silicon-containing composite metal oxide film.
- CVD chemical vapor deposition
- ALD atomic layer deposition
- the present invention provides a silicon-containing film formed by the method for forming a silicon-containing film.
- a method for forming a silicon-containing film according to an embodiment of the present invention uses a composition for forming a silicon-containing film including a silicon precursor compound having a specific structure at a high temperature of 600 ° C. or higher and a silicon-containing oxide film and a silicon-containing composite metal.
- a silicon-containing film containing at least one selected from the group consisting of an oxide film can be efficiently formed, and the thickness and composition of a desired film can be controlled, and excellent coverage and uniform silicon-containing film can be obtained even on a substrate having a complex shape. can form a barrier.
- the method of forming a silicon-containing film of the present invention can be applied to various fields such as memory devices and logic devices, display devices, and moisture penetration prevention films of organic light emitting diode (OLED) devices, and at high temperature of 600 ° C. or more during film deposition Since a film having a desired thickness can be obtained, it can be used very effectively in electronic devices requiring excellent film properties and coating properties.
- OLED organic light emitting diode
- SIMS secondary ion mass spectrometry method
- FIG. 3 is a transmission electron microscope showing step coverage by depositing a composition for forming a silicon-containing film including the silicon precursor compound of Example 2 and Comparative Example 1 of the present invention at 750° C. on a patterned wafer. (TEM, Transmission Electron Microscope) image.
- each of the terms “film” or “thin film” means both “film” and “thin film” unless otherwise specified.
- alkyl or “alkyl group” includes linear or branched alkyl groups and all possible isomers thereof.
- the alkyl or alkyl group is a methyl group (Me), an ethyl group (Et), a normal propyl group ( n Pr), an isopropyl group ( i Pr), a normal butyl group ( n Bu), an isobutyl group ( i Bu) , tert-butyl group (tert-Bu, t Bu), sec-butyl group ( sec Bu), etc., as well as isomers thereof, etc., but may not be limited thereto.
- a composition for forming a silicon-containing film including a silicon precursor compound represented by the following formula (1), chemical vapor deposition (CVD) or atomic layer deposition (Atomic Layer Deposition, depositing a silicon-containing film on a substrate by ALD), wherein the silicon-containing film includes at least one selected from the group consisting of a silicon-containing oxide film and a silicon-containing composite metal oxide film, wherein the deposition comprises:
- a method for forming a silicon-containing film performed at a temperature of 600° C. or higher can be provided:
- R 11 and R 12 are each independently selected from the group consisting of hydrogen and a linear or branched C 1 -C 4 alkyl group;
- R 13 to R 17 are each independently selected from the group consisting of hydrogen, a linear or branched C 1 -C 4 alkyl group, and a linear or branched C 2 -C 6 alkenyl group;
- At least one of R 13 and R 14 is not hydrogen, and at least one of R 15 to R 17 is not hydrogen.
- a composition for forming a silicon-containing film including a silicon precursor compound having a specific structure represented by Chemical Formula 1 is used at a high temperature of 600 ° C. or more to form a silicon-containing film.
- a silicon-containing film containing at least one selected from the group consisting of an oxide film and a silicon-containing composite metal oxide film can be efficiently formed, the thickness and composition of a desired film can be controlled, and excellent performance can be achieved even on a substrate having a complex shape.
- a covering and uniform silicon-containing film can be formed.
- the method of forming a silicon-containing film of the present invention can be applied to various fields such as memory devices and logic devices, display devices, and moisture penetration prevention films of organic light emitting diode (OLED) devices, and at high temperature of 600 ° C. or more during film deposition It has a technical significance in that a film having a desired thickness can be obtained.
- OLED organic light emitting diode
- the silicon-containing film is formed on a substrate (substrate) using a composition for forming a silicon-containing film including a silicon precursor compound represented by Chemical Formula 1. - Depositing the containing film.
- the substrate may use a silicon semiconductor wafer, a compound semiconductor wafer, or plastic substrates (PI, PET, PES), but may not be limited thereto.
- a substrate having holes or grooves may be used, and a porous substrate having a large surface area may be used.
- silicon having a thickness of several nanometers (nm) to several micrometers ( ⁇ m) at a temperature range of 600 ° C or more, specifically, 600 ° C to 850 ° C, even on a substrate with a pattern (groove) on the surface, a porous substrate, or a plastic substrate.
- the containing film can be formed uniformly, the aspect ratio is 1 or more, for example, about 1 to 50 or more, and the width is 1 ⁇ m or less, for example, the deepest part of a fine pattern (groove) to about 1 ⁇ m to 10 nm or less It has an excellent effect of forming a silicon-containing film with a uniform thickness on the entire surface of the substrate including the surface of the surface and the surface of the fine irregularities (grooves).
- the silicon-containing layer may be formed on a substrate including one or more irregularities having an aspect ratio of 1 or more and a width of 1 ⁇ m or less.
- the method of depositing the silicon-containing film may be performed using a method, apparatus, or the like known in the art, and, if necessary, using one or more additional reaction gases together.
- the deposition method of the silicon-containing film may be performed by CVD, such as metal organic chemical vapor deposition (MOCVD), or ALD.
- MOCVD metal organic chemical vapor deposition
- ALD ALD
- the MOCVD or ALD may be performed using a deposition apparatus, deposition conditions, and a reactive gas known in the art.
- the composition for forming a silicon-containing film containing the silicon precursor compound is transferred onto the substrate using a carrier gas or a diluent gas to obtain a temperature of 600° C. or more, specifically 600° C. to 600° C.
- a silicon-containing film can be deposited at a high deposition temperature of 850°C.
- the deposition temperature in the above range can be applied to memory devices, logic devices, display devices, etc., and since the process temperature is wide, it is highly applicable to various fields.
- a composition for forming a silicon-containing film containing the compound deposition is easy in the deposition temperature range of the above range.
- At least one mixed gas selected from the group consisting of argon (Ar), nitrogen (N 2 ), helium (He), and hydrogen (H 2 ) as the transport gas or diluent gas.
- the method for supplying the silicon precursor compound into the reaction chamber may include a bubbling method in which the composition for forming a silicon-containing film including the silicon precursor compound is forcibly vaporized using a carrier gas or a dilution gas;
- a liquid supply system liquid delivery system, LDS
- Gas flow control vapor flow control, VFC
- at least one method selected from the group consisting of a bypass method of vaporizing by heating may be used.
- a composition for forming a silicon-containing film including the silicon precursor compound may be supplied into the reaction chamber by using a method of supplying the silicon precursor compound.
- the supply method includes a bubbling method or a bypass method, and the bubbling method is performed using a carrier gas or a dilution gas at a temperature range of 0.1 torr to 10 torr and room temperature to 150 ° C.
- the bypass method may be performed using a vapor pressure of 0.1 torr to 1.5 torr at a temperature range of room temperature to 100 °C.
- supplying the composition for forming a silicon-containing film including the silicon precursor compound into the reaction chamber may be performed using a carrier gas or a diluent gas at a temperature range of 0.1 torr to 10 torr and room temperature to 100°C.
- composition for forming a silicon-containing film including the silicon precursor compound for example, transporting it with argon (Ar) or nitrogen (N 2 ) gas, using thermal energy or plasma during deposition, or depositing it on the substrate A bias can be applied.
- Ar argon
- N 2 nitrogen
- the method of forming the silicon-containing film in order to deposit one or more types of silicon-containing films selected from the group consisting of a silicon-containing oxide film and a silicon-containing composite metal oxide film, during the deposition, water vapor (H 2 O), Oxygen (O 2 ), Oxygen Plasma (O 2 Plasma), Nitric Oxide (NO, N 2 O), Nitric Oxide Plasma (N 2 O Plasma), Oxygen Nitride (N 2 O 2 ), Hydrogen Peroxide (H 2 O 2 ), and at least one selected from the group consisting of ozone (O 3 ).
- the at least one silicon-containing film selected from the group consisting of the silicon-containing oxide film and the silicon-containing composite metal oxide film may be, for example, HfSiO x , ZrSiO x , TiSiO x , HfAlO x , ZrAlSiO x , TiAlSiO x , ZrHfSiO x , ZrHfAlSiO x , SiC, SiCO, and may include one or more selected from the group consisting of SiON, but is not limited thereto. In this case, the x may be 1 to 3.
- At least one type of silicon-containing film selected from the group consisting of a silicon-containing nitride film and a silicon-containing composite nitride film can be formed using the composition for forming a silicon-containing film including the silicon precursor compound represented by Formula 1. there is.
- ammonia NH 3
- ammonia plasma NH 3 Plasma
- hydrazine N 2 H 4
- nitrogen plasma N 2 Plasma
- the silicon-containing nitride film or the silicon-containing composite metal nitride film may be, for example, HfSiN x , ZrSiN x , TiSiN x , AlSiN x , HfAlSiN x , ZrAlSiN x , TiAlSiN x , HfZrAlSiN x , HfZrTiSiN x , TiAlSiN x , SiCN, It may include one or more selected from the group consisting of SiOCN and SiBN, but is not limited thereto. In this case, the x may be 1 to 3.
- a composition for forming a silicon-containing film including the silicon precursor compound represented by Formula 1 will be described in more detail below.
- the present invention provides a composition for forming a silicon-containing film including the silicon precursor compound represented by Formula 1 above.
- the composition for forming a silicon-containing oxide film includes a silicon precursor compound represented by Formula 1, and is subjected to chemical vapor deposition (CVD) or atomic layer deposition (ATO) at a temperature of 600° C. or higher.
- ALD atomic layer deposition
- the silicon-containing film may include at least one selected from the group consisting of a silicon-containing oxide film and a silicon-containing composite metal oxide film.
- the composition for forming a silicon-containing film according to an embodiment of the present invention includes the silicon precursor compound represented by Chemical Formula 1, thereby providing excellent coverage and a uniform silicon-containing film even on a substrate having a complex shape, specifically a silicon-containing film.
- An oxide film can be formed.
- Formula 1 in particular, in Formula 1, it has a structure in which various types of amines and alkyl groups are bonded to Si, and in particular, in R 13 -Si-R 14 among various types of bonds, at least one of R 13 and R 14 is hydrogen Since it is not, it may be more advantageous to form a stable film at a high temperature of about 600 ° C to 850 ° C.
- the silicon precursor compound represented by Chemical Formula 1 first, the amine represented by -NR 11 R 12 in the above structure has excellent surface reactivity and is advantageous in forming a silicon-containing oxide film; Second, in the part represented by R 13 -Si-R 14 in the above structure, at least one of R 13 and R 14 is not hydrogen, that is, at least one of R 13 and R 14 is an alkyl group or an alkenyl group, preferably R 13 And at least one of R 14 has an alkyl group, so that a stable film can be formed without the rapid decomposition of the silicon precursor at high temperature due to the thermally stable combination of Si and C, which requires the characteristics of a silicon-containing film at high temperature.
- 3D NAND may be suitable for flash memory processing;
- the structure includes three Si elements, and since GPC is significantly greater in SiO 2 ALD than in conventionally known silicon precursor compounds, it is necessary to form a thick SiO 2 film at high temperature for 3D NAND flash memory. may be suitable for the process.
- R 11 and R 12 are each independently selected from the group consisting of hydrogen and a linear or branched C 1 -C 4 alkyl group
- R 13 to R 17 are each independently hydrogen
- It is selected from the group consisting of a linear or branched C 1 -C 4 alkyl group and a linear or branched C 2 -C 6 alkenyl group, provided that at least one of R 13 and R 14 is not hydrogen, and R 15 to At least one of R 17 is not hydrogen.
- the silicon precursor compound may include one or more selected from the group consisting of compounds represented by Chemical Formulas 1-1 to 1-25:
- the silicon precursor compound included in the composition for forming a silicon-containing oxide film may be a compound represented by Formula 1-a:
- R 11 and R 12 are each independently a linear or branched C 1 -C 4 alkyl group
- R 13 to R 17 are each independently selected from the group consisting of hydrogen, a linear or branched C 1 -C 4 alkyl group, and a linear or branched C 2 -C 6 alkenyl group;
- At least one of R 11 and R 12 is not a methyl group, at least one of R 13 and R 14 is not hydrogen, and at least one of R 15 to R 17 is not hydrogen.
- the silicon precursor compound is represented by Formulas 1-2 to 1-5, 1-7, 1-8, 1-10, 1-11, 1-13 to 1-20, and 1-22 to 1-25. It may contain one or more selected from the group consisting of the compounds shown.
- the silicon precursor compound may include one or more selected from the group consisting of compounds represented by the following formula.
- film growth (GPC) per ALD gas supply cycle of 1.5 to 3.0 ⁇ / cycle at 600 ° C to 850 ° C can have
- a film growth per ALD gas supply cycle (GPC) of 1.75 to 2.25 ⁇ /cycle may be achieved.
- a silicon-containing film using the composition for forming a silicon-containing film according to an embodiment of the present invention, it is possible to control the thickness of the film and the composition having the desired silicon-content, and to form a pattern (groove) on the surface.
- a high-quality silicon-containing film can be provided because excellent coverage and a uniform film can be formed even on a substrate with a porous substrate, a porous substrate, a plastic substrate, or a substrate having a complex shape with a three-dimensional structure.
- a silicon-containing film including at least one selected from the group consisting of a silicon-containing oxide film and a silicon-containing composite metal oxide film on a substrate by CVD or ALD using the composition for forming a silicon-containing film
- At least one selected from the group consisting of a silicon-containing nitride film, a silicon-containing carbide film, and a silicon-containing composite metal film can be efficiently formed.
- a silicon-containing film having a desired thickness at a high temperature of 600 ° C. or higher a film of a desired thickness can be obtained with a uniform thickness, a film shrinkage rate and an etch rate at a high temperature are lower, and a pure high-quality silicon-containing film with less impurities can be formed.
- the silicon precursor compound represented by Chemical Formula 1 may be prepared by various methods.
- an alkyldisilazane metal salt represented by the following Chemical Formula A is mixed with a dihalide silicon precursor compound represented by the following Chemical Formula B and a die represented by the following Chemical Formula C It may include the step of performing a halide-amine substitution reaction with an alkylamine or dialkylamine metal salt:
- M 3 is an alkali metal, Li or Na
- R 15 to R 17 are each independently selected from the group consisting of hydrogen, a linear or branched C 1 -C 4 alkyl group, and a linear or branched C 2 -C 6 alkenyl group;
- R 15 to R 17 is not hydrogen
- X 3 and X 4 are each independently Cl, Br, or I as a halogen element
- R 13 and R 14 are each independently selected from the group consisting of hydrogen, a linear or branched C 1 -C 4 alkyl group, and a linear or branched C 2 -C 6 alkenyl group;
- R 13 and R 14 are not hydrogen
- R 11 and R 12 are each independently hydrogen, a linear or branched C 1 -C 4 alkyl group,
- M 4 is selected from the group consisting of hydrogen, Li and Na.
- the silicon precursor compound (Formula 1) is prepared by adding 0.5 to 2 mol of a dihalide silicon precursor compound (Formula A) to an alkyldisilazane metal salt (Formula A) at a low temperature (about -30 ° C to -5 ° C).
- a substitution reaction of the primary halide with the amine can be carried out after addition of formula B).
- 1 to 3 mol of dialkylamine or dialkylamine metal salt (formula C) is added to the product at a low temperature (about -30 ° C to -5 ° C), followed by a substitution reaction of a secondary halide with an amine.
- the reaction byproducts included in the reaction product are removed in the form of a metal halide salt or a dialkylamine halide salt through a filter, and the remaining product is purified to obtain the silicon precursor compound represented by Chemical Formula 1.
- Each of the primary and secondary halide-amine substitution reactions may be performed in a solvent at 0 °C to 30 °C, specifically 20 °C to 30 °C, for example, at room temperature (room temperature) for 2 to 30 hours.
- the solvent may include at least one selected from the group consisting of alkanes having 5 to 8 carbon atoms, toluene, ether, tetrahydrofuran, and mono to tetraethylene glycol dimethyl ether.
- a composition for forming a silicon-containing film including a silicon precursor compound may be obtained by using the silicon precursor compound.
- a silicon-containing film formed by the method for forming a silicon-containing film is provided.
- the silicon-containing film may have a thickness of several nanometers (nm) to several micrometers ( ⁇ m), and may be applied in various ways depending on the application purpose. Specifically, the silicon-containing layer may be formed in a thickness range of 1 nm to 500 nm.
- the silicon-containing film may be formed on a substrate (substrate).
- the substrate is as described above.
- the silicon-containing layer may include at least one selected from the group consisting of a silicon-containing oxide layer and a silicon-containing composite metal oxide layer.
- the composition for forming a silicon-containing film including the silicon precursor compound represented by Formula 1 the silicon-containing oxide film and the silicon-containing composite metal oxide film containing at least one selected from the group consisting of silicon-
- the silicon-containing oxide film and the silicon-containing composite metal oxide film containing at least one selected from the group consisting of silicon-
- at least one selected from the group consisting of a silicon-containing nitride film, a silicon-containing carbide film, and a silicon-containing composite metal film can be efficiently formed.
- the silicon-containing film has a low shrinkage rate even at a high temperature of 600 ° C. or higher, for example, 600 ° C. to 850 ° C., It is characterized by low etching rate ( ⁇ /s) of the -containing film.
- the silicon-containing film may have a shrinkage ratio (S 750 ) of 5.0% or less represented by Equation 1 below:
- A is the initial thickness ( ⁇ ) of the silicon-containing film formed by ALD at 750° C.
- B is the thickness ( ⁇ ) of the silicon-containing film formed by ALD at 750° C. after dwelling in an argon (Ar) atmosphere at 750° C. for 60 minutes.
- the silicon-containing film has a shrinkage ratio (S 750 ) of the silicon-containing film represented by Formula 1, for example, 4.8% or less, 4.5% or less, 4.4% or less, 4.0% or less, 3.9% or less, 3.8% or less, 3.5% or less 3.3% or less, 3.2% or less, 3.0% or less, 2.5% or less, 2.0% or less, 1.5% or less, or 1.0% or less.
- S 750 shrinkage ratio of the silicon-containing film represented by Formula 1, for example, 4.8% or less, 4.5% or less, 4.4% or less, 4.0% or less, 3.9% or less, 3.8% or less, 3.5% or less 3.3% or less, 3.2% or less, 3.0% or less, 2.5% or less, 2.0% or less, 1.5% or less, or 1.0% or less.
- the silicon-containing film When the silicon-containing film satisfies the shrinkage ratio (S 750 ) of the silicon-containing film in the above range, it may be advantageous to form a uniform and dense silicon-containing film.
- the thickness of the silicon-containing film before and after exposing the silicon-containing film to an etching solution of 1% dilute hydrofluoric acid can be measured with an ellipsometer.
- the etching rate ( ⁇ /s) of the silicon-containing film represented by Equation 2 below may be 4.0 ⁇ /s or less:
- etch thickness variation ( ⁇ E) may be expressed by Equation 2-1 below:
- E A is the initial thickness ( ⁇ ) of the silicon-containing film formed by ALD at 750° C.
- E B is the thickness ( ⁇ ) of the silicon-containing film after etching the silicon-containing film formed by ALD at 750° C. in a 1% dilute HF solution for 30 seconds.
- Equation 2 "s" means second.
- the silicon-containing film has an etch rate ( ⁇ /s) of the silicon-containing film represented by Equation 2, for example, 3.8 ⁇ /s or less, 3.5 ⁇ /s or less, 3.2 ⁇ /s or less, 3.0 ⁇ /s or less, or 2.8 ⁇ /s or less.
- ⁇ /s or less 2.5 ⁇ /s or less, 2.45 ⁇ /s or less, 2.4 ⁇ /s or less, 2.2 ⁇ /s or less, 2.1 ⁇ /s or less, 2.0 ⁇ /s or less, 1.5 ⁇ /s or less, 1.0 ⁇ /s or less s or less, 0.5 ⁇ /s or less, 0.1 ⁇ /s or less, 0.05 ⁇ /s or less, or 0.03 ⁇ /s or less.
- the silicon-containing film has an etch rate ( ⁇ /s) of the silicon-containing film represented by Equation 2 of 3.8 ⁇ /s to 0.5 ⁇ /s, 3.5 ⁇ /s to 0.5 ⁇ /s, and 3.0 ⁇ /s to 1.0 ⁇ /s, 2.5 ⁇ /s to 1.0 ⁇ /s, or 2.1 ⁇ /s to 1.0 ⁇ /s.
- the silicon-containing layer When the silicon-containing layer satisfies the etching rate ( ⁇ /s) of the silicon-containing layer within the above range, it may be advantageous to form a uniform and dense silicon-containing layer.
- the silicon-containing layer may have excellent step coverage.
- the silicon-containing film has a step coverage (% ) is, for example, 80% or more, such as 82% or more, such as 85% or more, such as 90% or more, such as 92% or more, such as 93% or more, such as 95% or more , or, for example, 96% or more.
- a step coverage is, for example, 80% or more, such as 82% or more, such as 85% or more, such as 90% or more, such as 92% or more, such as 93% or more, such as 95% or more , or, for example, 96% or more.
- step coverage (%) of the silicon-containing film satisfies the above range, a high step ratio and fine thickness control are easy, which is useful in manufacturing various semiconductor devices such as DRAM and 3D NAND flash memory. can be used effectively.
- Example 1 Preparation of dimethylamino-(tetramethyldisilyl)amino-dimethyl silane and a composition for forming a silicon-containing film including the same: [ ⁇ (CH 3 ) 2 N ⁇ Si(CH 3 ) 2 ⁇ N(SiHMe 2 ) 2 ⁇ ]
- n-butyllithium hexane solution in n-hexane, n-BuLi was mixed with about 1,000 mL of anhydrous hexane.
- about 61.99 g (about 0.465 mol) of tetramethyldisilazane (1, 1, 3, 3-tetramethyldisilazane) was added at around -20 ° C., and then slowly raised to room temperature while stirring, followed by stirring for 4 hours.
- Example 2 Preparation of ethylmethylamino-(tetramethyldisilyl)amino-dimethylsilane and a composition for forming a silicon-containing film containing the same: [ ⁇ (CH 3 CH 2 )(CH 3 )N ⁇ Si (CH 3 ) 2 ⁇ N(SiHMe 2 ) 2 ⁇ ]
- Ethylmethylamino-(tetramethyldisilyl)amino About 62.6 g (yield: about 65%) of -dimethylsilane [ ⁇ (CH 3 CH 2 )(CH 3 )N ⁇ Si(CH 3 ) 2 ⁇ N(SiHMe 2 ) 2 ⁇ ] was obtained, which was formed into a film. used in the composition.
- Example 3 Preparation of ethylmethylamino-(hexamethyldisilyl)amino-dimethylsilane and a composition for forming a silicon-containing film containing the same: [ ⁇ (CH 3 CH 2 )(CH 3 )N ⁇ Si (CH 3 ) 2 ⁇ N(SiMe 3 ) 2 ⁇ ]
- n-butyllithium hexane solution in n-hexane, n-BuLi was mixed with 500 mL of anhydrous hexane.
- about 75.03 g (about 0.465 mol) of hexamethyldisilazane (1, 1, 1, 3, 3, 3-hexamethyldisilazane) was added at around -20 ° C, and then slowly raised to room temperature while stirring, followed by stirring for 4 hours. .
- n-butyllithium hexane solution in n-hexane, n-BuLi was mixed with about 500 mL of anhydrous hexane.
- diethylamine was added at about -20° C., and then slowly raised to room temperature while stirring, followed by stirring for about 4 hours.
- the formed lithium (diethylamine) salt solution was added to the above 3L round-bottom flask at around -20 ° C, and then slowly raised to room temperature while stirring, followed by stirring for about 17 hours.
- Tris(dimethylamido)silane (3DMAS or TDMAS) [SiH(NMe 2 ) 3 ] was used as a product of UP Chemical Co., Ltd.
- a silicon-containing film was formed by ALD using compositions for forming a silicon-containing film including the silicon precursor compounds of Examples and Comparative Examples, and ozone (O 3 ) as a reaction gas.
- the silicon substrate was immersed in a Piranha solution containing a mixture of sulfuric acid (H 2 SO 4 ) and hydrogen peroxide (H 2 O 2 ) in a ratio of 4:1 for about 10 minutes, then taken out and then soaked in a dilute HF aqueous solution for 2 minutes.
- a silicon-containing oxide film was formed by ALD on a silicon substrate having a pure surface by soaking.
- a composition for forming a silicon-containing film containing a silicon precursor compound was placed in a container made of stainless steel, and an argon (Ar) carrier gas was flowed at a flow rate of about 200 sccm under a process pressure of 4 torr in a reactor at room temperature to form the film.
- the forming composition was supplied to the reaction chamber in a gaseous state.
- the film-forming composition is supplied in a gaseous state for about 3 seconds ⁇ argon (Ar) gas is supplied for about 10 seconds, and the film-forming composition remaining in the reactor (gas ) removal ⁇ supplying ozone (O 3 ) as a reaction gas for about 5 seconds ⁇ supplying argon (Ar) gas for about 10 seconds to remove ozone (O 3 ) gas remaining in the reactor. was repeated 100 times to form a silicon-containing oxide film.
- each oxide film formed using the composition for forming a silicon-containing film prepared by the methods of Examples and Comparative Examples was measured using an ellipsometer (J.A. Woollam, M-2000).
- the film growth (GPC) per ALD gas supply cycle was measured by dividing the measured thickness by the number of gas supply cycles (100 times).
- the film growth (GPC) per ALD gas supply cycle increased from about 700 ° C., whereas in Examples 1, 2, and 3, In the case of using the composition for forming a silicon-containing film including the silicon compounds of 4 and 5, it was confirmed that film growth (GPC) per ALD gas supply cycle was constant even at a high temperature of 800 °C or 850 °C.
- composition for forming a silicon-containing film including the silicone compound of the embodiment of the present invention has a constant GPC at a high temperature of 600 ° C to 850 ° C and exhibits self-limiting film growth characteristics, a high-temperature ALD process It can be confirmed that it is a suitable precursor for
- composition for forming a silicon-containing film including the silicon compound of Examples 1, 2, 3, 4, and 5 and Comparative Example 1, the same thickness was formed by adjusting the ALD gas supply cycle to a flat wafer at 750 ° C.
- the physical and chemical properties of the SiO 2 film were analyzed.
- shrinkage and etch rate (WER, wet etch rate, ⁇ /s) of the SiO 2 film were measured.
- the thickness of the SiO 2 film was measured using an ellipsometer (JA Woollam, M-2000).
- A is the initial thickness ( ⁇ ) of the silicon-containing film formed by ALD at 750° C.
- B is the thickness ( ⁇ ) of the silicon-containing film formed by ALD at 750° C. after dwelling in an argon (Ar) atmosphere at 750° C. for 60 minutes.
- the shrinkage rates of the silicon-containing oxide film (SiO 2 film) deposited using the compositions for forming a silicon-containing film of Examples 1, 2, 3, 4 and 5 were 3.87% and 3.39%, respectively. , 2.71%, 4.40% and 3.98%, whereas the shrinkage of the silicon-containing oxide film deposited using the composition for forming a silicon-containing film of Comparative Example 1 was 6.40%.
- the silicon-containing oxide film deposited using the composition for forming a silicon-containing film of Examples 1, 2, 3, 4, and 5 was deposited using the composition for forming a silicon-containing film of Comparative Example 1.
- the film shrinkage at high temperature was lower than that of the containing oxide film.
- a silicon-containing film formed to an initial thickness of about 500 ⁇ as shown in Table 4 below by adjusting the ALD gas supply cycle to each flat wafer at 750 ° C. was etched in a 1% dilute HF solution for 30 seconds, The thickness change was measured to calculate the etch rate (WER, wet etch rate, ⁇ /s) of Equation 2 below.
- etch thickness variation ( ⁇ E) may be expressed by Equation 2-1 below:
- E A is the initial thickness ( ⁇ ) of the silicon-containing film formed by ALD at 750° C.
- E B is the thickness ( ⁇ ) of the silicon-containing film after etching the silicon-containing film formed by ALD at 750° C. in a 1% dilute HF solution for 30 seconds.
- Equation 2 "s" means second.
- the etching rates of the silicon-containing oxide film (SiO 2 film) deposited using the compositions for forming a silicon-containing film of Examples 2, 3, and 4 were 2.45 ⁇ /s and 2.45 ⁇ /s, respectively. , and 2.07 ⁇ / s, whereas the etching rate of the silicon-containing oxide film deposited using the composition for forming a silicon-containing film of Comparative Example 1 was 2.90 ⁇ / s, forming the silicon-containing film of Examples 2, 3 and 4 It was confirmed that the etching rate ( ⁇ /s) of the silicon-containing oxide film formed using the composition was reduced.
- SIMS secondary ion mass spectrometry
- the silicon-containing oxide film deposited at about 100 ⁇ was subjected to SIMS
- the carbon (C) component was analyzed.
- the content of the carbon component was about 80% in Example 1, about 81% in Example 2, about 76% in Example 3, about 81% in Example 4, and about 83% in Example 5, compared to Comparative Example 1. % decrease, and it was confirmed that a pure silicon-containing oxide film having a carbon component of less than 100 Counts was formed.
- Figure 3 is a transmission electron microscope (TEM, TEM, Transmission Electron Microscope) image.
- Table 4 shows the thickness of the silicon-containing oxide film measured at the portion shown in FIG. 3 .
- the composition for forming a silicon-containing film of Example 2 and Comparative Example 1 was deposited on a stepped substrate and then analyzed using TEM.
- the composition for forming a silicon-containing film of Example 2 The step coverage (%) of the silicon-containing oxide film deposited using the composition was 93.4%, whereas the step coverage (%) of the silicon-containing oxide film deposited using the composition for forming a silicon-containing film of Comparative Example 1 Silver 78.1%, the step coverage of the silicon-containing oxide film formed using the composition for forming a silicon-containing film of Example 2 is a silicon-containing oxide film formed using the composition for forming a silicon-containing film of Comparative Example 1 It was found to be significantly better than the step coverage of
- the silicon-containing film can be easily deposited by ALD.
- the thickness and composition of the film can be precisely controlled, and excellent coverage and a uniform film can be formed even on a substrate having a complex shape.
- a film having a desired thickness can be obtained at a high temperature of 600 ° C to 850 ° C during deposition, thereby obtaining It can be seen that the physical properties of the silicon-containing oxide film, such as step coverage, shrinkage rate, and etching rate, are significantly improved compared to those of the silicon-containing oxide film using the composition for forming a silicon-containing film including the silicon precursor compound of Comparative Example 1.
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Abstract
Description
Claims (15)
- 하기 화학식 1로 표시되는 실리콘 전구체 화합물을 포함하는 실리콘-함유 막 형성용 조성물을 이용하여 화학기상 증착법(Chemical Vapor Deposition, CVD) 또는 원자층 증착법(Atomic Layer Deposition, ALD)에 의해 기판 상에 실리콘-함유 막을 증착하는 단계를 포함하고,상기 실리콘-함유 막은 실리콘-함유 산화막 및 실리콘-함유 복합 금속 산화막으로 이루어진 군으로부터 선택되는 1종 이상을 포함하고,상기 증착은 600℃ 이상의 온도에서 수행되는, 실리콘-함유 막의 형성 방법:[화학식 1]상기 화학식 1에서,R11 및 R12는 각각 독립적으로, 수소, 및 선형 또는 분지형의 C1-C4 알킬기로 구성된 군으로부터 선택되고,R13 내지 R17은 각각 독립적으로, 수소, 선형 또는 분지형의 C1-C4 알킬기, 및 선형 또는 분지형의 C2-C6 알케닐기로 구성된 군으로부터 선택되고,단, R13 및 R14 중 하나 이상은 수소가 아니며, R15 내지 R17 중 하나 이상은 수소가 아니다.
- 제 1 항에 있어서,상기 증착은 600℃ 내지 850℃의 온도범위에서 수행되는, 실리콘-함유 막의 형성 방법.
- 제 1 항에 있어서,상기 실리콘-함유 막 형성용 조성물은, 원자층 증착법(Atomic Layer Deposition, ALD)에 의해 증착 시, 600℃ 내지 850℃에서 1.5 내지 3.0 Å/cycle의 ALD 기체 공급 주기 당 막 성장(GPC)을 갖는, 실리콘-함유 막의 형성 방법.
- 제 1 항에 있어서,상기 증착 시, 수증기(H2O), 산소(O2), 산소 플라즈마(O2 Plasma), 산화질소(NO, N2O), 산화질소 플라즈마(N2O Plasma), 질화산소(N2O2), 과산화수소수(H2O2), 및 오존(O3)으로 이루어진 군으로부터 선택되는 1종 이상을 사용하는, 실리콘-함유 막의 형성 방법.
- 제 1 항에 있어서,상기 실리콘-함유 막은 1 nm 내지 500 nm의 두께 범위에서 형성되는, 실리콘-함유 막의 형성 방법.
- 제 1 항에 있어서,상기 실리콘-함유 막은 종횡비가 1 이상이고, 폭이 1㎛ 이하인 요철을 하나 이상 포함하는 기판 상에 형성되는, 실리콘-함유 막의 형성 방법.
- 제 1 항에 있어서,상기 실리콘-함유 막의 형성 방법은, 버블링(bubbling) 방식, 액체 공급 시스템(liquid delivery system, LDS) 방식, 기체 유량 제어(vapor flow control, VFC) 방식, 및 바이패스(bypass) 방식으로 이루어진 군으로부터 선택되는 하나 이상을 포함하는 방식을 이용하여 상기 실리콘 전구체 화합물을 반응 챔버 내로 공급하는 단계를 포함하는, 실리콘-함유 막의 형성 방법.
- 제 8 항에 있어서,상기 실리콘 전구체 화합물을 반응 챔버 내로 공급하는 단계는 0.1 내지 10 torr 및 상온 내지 150℃의 온도 범위에서 운송 기체 또는 희석 기체를 사용하여 수행되는, 실리콘-함유 막의 형성 방법.
- 제 1 항에 있어서,상기 증착 시, 열에너지 또는 플라즈마를 이용하거나, 기판 상에 바이어스를 인가하는, 실리콘-함유 막의 형성 방법.
- 하기 화학식 1로 표시되는 실리콘 전구체 화합물을 포함하고,600℃ 이상의 온도에서 화학기상 증착법(Chemical Vapor Deposition, CVD) 또는 원자층 증착법(Atomic Layer Deposition, ALD)에 의해 실리콘-함유 막 증착에 사용되고,상기 실리콘-함유 막은 실리콘-함유 산화막 및 실리콘-함유 복합 금속 산화막으로 이루어진 군으로부터 선택되는 1종 이상을 포함하는, 실리콘-함유 막 형성용 조성물:[화학식 1]상기 화학식 1에서,R11 및 R12는 각각 독립적으로, 수소, 및 선형 또는 분지형의 C1-C4 알킬기로 구성된 군으로부터 선택되고,R13 내지 R17은 각각 독립적으로, 수소, 선형 또는 분지형의 C1-C4 알킬기, 및 선형 또는 분지형의 C2-C6 알케닐기로 구성된 군으로부터 선택되고,단, R13 및 R14 중 하나 이상은 수소가 아니며, R15 내지 R17 중 하나 이상은 수소가 아니다.
- 제 1 항의 실리콘-함유 막의 형성 방법에 의해 제조된 실리콘-함유 막.
- 제 13 항에 있어서,상기 실리콘-함유 막이 750℃에서 500 Å의 두께로 증착되어 형성된 것이고,상기 실리콘-함유 막을 1%의 묽은 불산의 식각 용액에 노출시키기 전과 후의 실리콘-함유 막의 두께를 엘립소미터로 측정할 때, 하기 식 2로 표시되는 실리콘-함유 막의 식각률(Å/s)이 4.0 Å/s 이하인, 실리콘-함유 막:상기 식각 두께 변화량(△E)은 하기 식 2-1로 표시되고,상기 식 2-1에서,EA는 750℃에서 ALD에 의해 형성된 실리콘-함유 막의 초기 두께(Å)이고,EB는 750℃에서 ALD에 의해 형성된 실리콘-함유 막을 1%의 묽은 HF 용액에 30초간 식각한 후 실리콘-함유 막의 두께(Å)이다.
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US18/577,875 US20240318305A1 (en) | 2021-07-23 | 2022-07-21 | Method for forming silicon-containing film, and silicon-containing film formed thereby |
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Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR20150142591A (ko) * | 2014-06-11 | 2015-12-22 | (주)디엔에프 | 신규한 아미노실릴아민 화합물 및 원자층 증착법을 이용한 Si-N 결합을 포함하는 절연막의 제조방법 |
KR20170124108A (ko) * | 2016-04-29 | 2017-11-09 | 세종대학교산학협력단 | 실리콘 질화막의 증착 방법 및 상기 실리콘 질화막의 증착 장치 |
US20210032275A1 (en) * | 2019-07-30 | 2021-02-04 | L'Air Liquide, Société Anonyme pour l'Etude et l'Exploitation des Procédés Georges Claude | Cyclic germanium silylamido precursors for ge-containing film depositions and methods of using the same |
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KR101703871B1 (ko) * | 2014-05-30 | 2017-02-08 | 주식회사 유피케미칼 | 신규 루테늄 화합물, 이의 제조 방법, 이를 포함하는 막 증착용 전구체 조성물, 및 이를 이용하는 막의 증착 방법 |
US11282745B2 (en) * | 2019-04-28 | 2022-03-22 | Applied Materials, Inc. | Methods for filling features with ruthenium |
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Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR20150142591A (ko) * | 2014-06-11 | 2015-12-22 | (주)디엔에프 | 신규한 아미노실릴아민 화합물 및 원자층 증착법을 이용한 Si-N 결합을 포함하는 절연막의 제조방법 |
KR20170124108A (ko) * | 2016-04-29 | 2017-11-09 | 세종대학교산학협력단 | 실리콘 질화막의 증착 방법 및 상기 실리콘 질화막의 증착 장치 |
US20210032275A1 (en) * | 2019-07-30 | 2021-02-04 | L'Air Liquide, Société Anonyme pour l'Etude et l'Exploitation des Procédés Georges Claude | Cyclic germanium silylamido precursors for ge-containing film depositions and methods of using the same |
Non-Patent Citations (2)
Title |
---|
DU LIYONG, YANLONG BAI, WENXIANG CHU, YUQIANG DING: "Synthesis of two aminosilanes as CVD precursors of SiCxNy films: Tuning film composition by molecular Structures", PHOSPHORUS, SULFUR, AND SILICON AND THE RELATED ELEMENTS, vol. 193, no. 9, 19 April 2018 (2018-04-19), pages 568 - 573, XP093026259, DOI: 10.1080/10426507.2018.1455682 * |
PARK JAE-MIN, JANG SE JIN, YUSUP LUCHANA L., LEE WON-JUN, LEE SANG-ICK: "Plasma-Enhanced Atomic Layer Deposition of Silicon Nitride Using a Novel Silylamine Precursor", APPLIED MATERIALS & INTERFACES, AMERICAN CHEMICAL SOCIETY, US, vol. 8, no. 32, 17 August 2016 (2016-08-17), US , pages 20865 - 20871, XP093026255, ISSN: 1944-8244, DOI: 10.1021/acsami.6b06175 * |
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