JP2023521770A - パルス化学気相堆積による金属酸化物の選択的堆積 - Google Patents
パルス化学気相堆積による金属酸化物の選択的堆積 Download PDFInfo
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- JP2023521770A JP2023521770A JP2022561478A JP2022561478A JP2023521770A JP 2023521770 A JP2023521770 A JP 2023521770A JP 2022561478 A JP2022561478 A JP 2022561478A JP 2022561478 A JP2022561478 A JP 2022561478A JP 2023521770 A JP2023521770 A JP 2023521770A
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- metal
- oxide layer
- metal oxide
- alkoxide precursor
- substrate
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- 229910044991 metal oxide Inorganic materials 0.000 title claims abstract description 210
- 150000004706 metal oxides Chemical group 0.000 title claims abstract description 210
- 238000000151 deposition Methods 0.000 title claims abstract description 8
- 238000005229 chemical vapour deposition Methods 0.000 title claims description 39
- 230000008021 deposition Effects 0.000 title 1
- 229910052751 metal Inorganic materials 0.000 claims abstract description 205
- 239000002184 metal Substances 0.000 claims abstract description 205
- 239000002243 precursor Substances 0.000 claims abstract description 151
- 150000004703 alkoxides Chemical class 0.000 claims abstract description 149
- 239000000758 substrate Substances 0.000 claims abstract description 129
- 238000000034 method Methods 0.000 claims abstract description 115
- 239000005001 laminate film Substances 0.000 claims abstract description 61
- 239000000463 material Substances 0.000 claims abstract description 44
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 claims abstract description 9
- 229910052782 aluminium Inorganic materials 0.000 claims abstract description 9
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims abstract description 9
- 229910052735 hafnium Inorganic materials 0.000 claims abstract description 9
- VBJZVLUMGGDVMO-UHFFFAOYSA-N hafnium atom Chemical compound [Hf] VBJZVLUMGGDVMO-UHFFFAOYSA-N 0.000 claims abstract description 9
- 239000010936 titanium Substances 0.000 claims abstract description 9
- 229910052719 titanium Inorganic materials 0.000 claims abstract description 9
- QCWXUUIWCKQGHC-UHFFFAOYSA-N Zirconium Chemical compound [Zr] QCWXUUIWCKQGHC-UHFFFAOYSA-N 0.000 claims abstract description 8
- 229910052746 lanthanum Inorganic materials 0.000 claims abstract description 8
- FZLIPJUXYLNCLC-UHFFFAOYSA-N lanthanum atom Chemical compound [La] FZLIPJUXYLNCLC-UHFFFAOYSA-N 0.000 claims abstract description 8
- 229910052726 zirconium Inorganic materials 0.000 claims abstract description 8
- 239000007789 gas Substances 0.000 claims description 33
- 238000010926 purge Methods 0.000 claims description 33
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 claims description 12
- 229910000449 hafnium oxide Inorganic materials 0.000 claims description 12
- WIHZLLGSGQNAGK-UHFFFAOYSA-N hafnium(4+);oxygen(2-) Chemical compound [O-2].[O-2].[Hf+4] WIHZLLGSGQNAGK-UHFFFAOYSA-N 0.000 claims description 12
- MRELNEQAGSRDBK-UHFFFAOYSA-N lanthanum(3+);oxygen(2-) Chemical compound [O-2].[O-2].[O-2].[La+3].[La+3] MRELNEQAGSRDBK-UHFFFAOYSA-N 0.000 claims description 12
- OGIDPMRJRNCKJF-UHFFFAOYSA-N titanium oxide Inorganic materials [Ti]=O OGIDPMRJRNCKJF-UHFFFAOYSA-N 0.000 claims description 12
- -1 propoxide compound Chemical class 0.000 claims description 8
- 150000002739 metals Chemical class 0.000 claims description 7
- 125000000217 alkyl group Chemical group 0.000 claims description 6
- 239000002019 doping agent Substances 0.000 claims description 6
- TWNQGVIAIRXVLR-UHFFFAOYSA-N oxo(oxoalumanyloxy)alumane Chemical compound O=[Al]O[Al]=O TWNQGVIAIRXVLR-UHFFFAOYSA-N 0.000 claims description 6
- RVTZCBVAJQQJTK-UHFFFAOYSA-N oxygen(2-);zirconium(4+) Chemical compound [O-2].[O-2].[Zr+4] RVTZCBVAJQQJTK-UHFFFAOYSA-N 0.000 claims description 6
- 229910001928 zirconium oxide Inorganic materials 0.000 claims description 6
- 125000002887 hydroxy group Chemical group [H]O* 0.000 claims description 4
- 239000000376 reactant Substances 0.000 claims description 4
- 238000010507 β-hydride elimination reaction Methods 0.000 claims description 4
- BGGIUGXMWNKMCP-UHFFFAOYSA-N 2-methylpropan-2-olate;zirconium(4+) Chemical compound CC(C)(C)O[Zr](OC(C)(C)C)(OC(C)(C)C)OC(C)(C)C BGGIUGXMWNKMCP-UHFFFAOYSA-N 0.000 claims description 3
- SMZOGRDCAXLAAR-UHFFFAOYSA-N aluminium isopropoxide Chemical compound [Al+3].CC(C)[O-].CC(C)[O-].CC(C)[O-] SMZOGRDCAXLAAR-UHFFFAOYSA-N 0.000 claims description 3
- LTBRWBUKPWVGFA-UHFFFAOYSA-N butan-1-olate;hafnium(4+) Chemical compound [Hf+4].CCCC[O-].CCCC[O-].CCCC[O-].CCCC[O-] LTBRWBUKPWVGFA-UHFFFAOYSA-N 0.000 claims description 3
- NYPANIKZEAZXAE-UHFFFAOYSA-N butan-1-olate;lanthanum(3+) Chemical compound [La+3].CCCC[O-].CCCC[O-].CCCC[O-] NYPANIKZEAZXAE-UHFFFAOYSA-N 0.000 claims description 3
- YHWCPXVTRSHPNY-UHFFFAOYSA-N butan-1-olate;titanium(4+) Chemical compound [Ti+4].CCCC[O-].CCCC[O-].CCCC[O-].CCCC[O-] YHWCPXVTRSHPNY-UHFFFAOYSA-N 0.000 claims description 3
- BSDOQSMQCZQLDV-UHFFFAOYSA-N butan-1-olate;zirconium(4+) Chemical compound [Zr+4].CCCC[O-].CCCC[O-].CCCC[O-].CCCC[O-] BSDOQSMQCZQLDV-UHFFFAOYSA-N 0.000 claims description 3
- GVOLZAKHRKGRRM-UHFFFAOYSA-N hafnium(4+) Chemical compound [Hf+4] GVOLZAKHRKGRRM-UHFFFAOYSA-N 0.000 claims description 3
- WZVIPWQGBBCHJP-UHFFFAOYSA-N hafnium(4+);2-methylpropan-2-olate Chemical compound [Hf+4].CC(C)(C)[O-].CC(C)(C)[O-].CC(C)(C)[O-].CC(C)(C)[O-] WZVIPWQGBBCHJP-UHFFFAOYSA-N 0.000 claims description 3
- SEKCULWEIYBRLO-UHFFFAOYSA-N hafnium(4+);propan-1-olate Chemical compound [Hf+4].CCC[O-].CCC[O-].CCC[O-].CCC[O-] SEKCULWEIYBRLO-UHFFFAOYSA-N 0.000 claims description 3
- 150000004678 hydrides Chemical group 0.000 claims description 3
- ILPVRBLJWLAMPB-UHFFFAOYSA-N lanthanum(3+) propan-1-olate Chemical compound [La+3].CCC[O-].CCC[O-].CCC[O-] ILPVRBLJWLAMPB-UHFFFAOYSA-N 0.000 claims description 3
- KVTFPLBLXFSGQO-UHFFFAOYSA-N lanthanum(3+);2-methylpropan-2-olate Chemical compound [La+3].CC(C)(C)[O-].CC(C)(C)[O-].CC(C)(C)[O-] KVTFPLBLXFSGQO-UHFFFAOYSA-N 0.000 claims description 3
- SORGMJIXNUWMMR-UHFFFAOYSA-N lanthanum(3+);propan-2-olate Chemical compound [La+3].CC(C)[O-].CC(C)[O-].CC(C)[O-] SORGMJIXNUWMMR-UHFFFAOYSA-N 0.000 claims description 3
- HKJYVRJHDIPMQB-UHFFFAOYSA-N propan-1-olate;titanium(4+) Chemical compound CCCO[Ti](OCCC)(OCCC)OCCC HKJYVRJHDIPMQB-UHFFFAOYSA-N 0.000 claims description 3
- XPGAWFIWCWKDDL-UHFFFAOYSA-N propan-1-olate;zirconium(4+) Chemical compound [Zr+4].CCC[O-].CCC[O-].CCC[O-].CCC[O-] XPGAWFIWCWKDDL-UHFFFAOYSA-N 0.000 claims description 3
- OGHBATFHNDZKSO-UHFFFAOYSA-N propan-2-olate Chemical compound CC(C)[O-] OGHBATFHNDZKSO-UHFFFAOYSA-N 0.000 claims description 3
- ZGSOBQAJAUGRBK-UHFFFAOYSA-N propan-2-olate;zirconium(4+) Chemical compound [Zr+4].CC(C)[O-].CC(C)[O-].CC(C)[O-].CC(C)[O-] ZGSOBQAJAUGRBK-UHFFFAOYSA-N 0.000 claims description 3
- VXUYXOFXAQZZMF-UHFFFAOYSA-N titanium(IV) isopropoxide Chemical compound CC(C)O[Ti](OC(C)C)(OC(C)C)OC(C)C VXUYXOFXAQZZMF-UHFFFAOYSA-N 0.000 claims description 3
- MYWQGROTKMBNKN-UHFFFAOYSA-N tributoxyalumane Chemical compound [Al+3].CCCC[O-].CCCC[O-].CCCC[O-] MYWQGROTKMBNKN-UHFFFAOYSA-N 0.000 claims description 3
- OBROYCQXICMORW-UHFFFAOYSA-N tripropoxyalumane Chemical compound [Al+3].CCC[O-].CCC[O-].CCC[O-] OBROYCQXICMORW-UHFFFAOYSA-N 0.000 claims description 3
- MDDPTCUZZASZIQ-UHFFFAOYSA-N tris[(2-methylpropan-2-yl)oxy]alumane Chemical compound [Al+3].CC(C)(C)[O-].CC(C)(C)[O-].CC(C)(C)[O-] MDDPTCUZZASZIQ-UHFFFAOYSA-N 0.000 claims description 3
- GRWPYGBKJYICOO-UHFFFAOYSA-N 2-methylpropan-2-olate;titanium(4+) Chemical compound [Ti+4].CC(C)(C)[O-].CC(C)(C)[O-].CC(C)(C)[O-].CC(C)(C)[O-] GRWPYGBKJYICOO-UHFFFAOYSA-N 0.000 claims description 2
- 229960005235 piperonyl butoxide Drugs 0.000 claims description 2
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 12
- 229910052814 silicon oxide Inorganic materials 0.000 description 12
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 10
- 229910052710 silicon Inorganic materials 0.000 description 10
- 239000010703 silicon Substances 0.000 description 10
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 description 8
- 238000000231 atomic layer deposition Methods 0.000 description 6
- 238000005137 deposition process Methods 0.000 description 5
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 4
- 229910052786 argon Inorganic materials 0.000 description 4
- 239000001307 helium Substances 0.000 description 4
- 229910052734 helium Inorganic materials 0.000 description 4
- SWQJXJOGLNCZEY-UHFFFAOYSA-N helium atom Chemical compound [He] SWQJXJOGLNCZEY-UHFFFAOYSA-N 0.000 description 4
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 3
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 3
- 229910052799 carbon Inorganic materials 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 239000000203 mixture Substances 0.000 description 3
- 239000007800 oxidant agent Substances 0.000 description 3
- 229910052760 oxygen Inorganic materials 0.000 description 3
- 239000001301 oxygen Substances 0.000 description 3
- 239000004065 semiconductor Substances 0.000 description 3
- MHAJPDPJQMAIIY-UHFFFAOYSA-N Hydrogen peroxide Chemical compound OO MHAJPDPJQMAIIY-UHFFFAOYSA-N 0.000 description 2
- 229910052581 Si3N4 Inorganic materials 0.000 description 2
- 238000005275 alloying Methods 0.000 description 2
- 239000006227 byproduct Substances 0.000 description 2
- 239000003795 chemical substances by application Substances 0.000 description 2
- 239000000356 contaminant Substances 0.000 description 2
- 229910021419 crystalline silicon Inorganic materials 0.000 description 2
- 238000002425 crystallisation Methods 0.000 description 2
- 230000008025 crystallization Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 239000003989 dielectric material Substances 0.000 description 2
- 125000001495 ethyl group Chemical group [H]C([H])([H])C([H])([H])* 0.000 description 2
- 239000011521 glass Substances 0.000 description 2
- 230000010354 integration Effects 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
- HBMJWWWQQXIZIP-UHFFFAOYSA-N silicon carbide Chemical compound [Si+]#[C-] HBMJWWWQQXIZIP-UHFFFAOYSA-N 0.000 description 2
- 229910010271 silicon carbide Inorganic materials 0.000 description 2
- HQVNEWCFYHHQES-UHFFFAOYSA-N silicon nitride Chemical compound N12[Si]34N5[Si]62N3[Si]51N64 HQVNEWCFYHHQES-UHFFFAOYSA-N 0.000 description 2
- 238000005979 thermal decomposition reaction Methods 0.000 description 2
- 235000012431 wafers Nutrition 0.000 description 2
- SDTMFDGELKWGFT-UHFFFAOYSA-N 2-methylpropan-2-olate Chemical compound CC(C)(C)[O-] SDTMFDGELKWGFT-UHFFFAOYSA-N 0.000 description 1
- JBRZTFJDHDCESZ-UHFFFAOYSA-N AsGa Chemical compound [As]#[Ga] JBRZTFJDHDCESZ-UHFFFAOYSA-N 0.000 description 1
- FIPWRIJSWJWJAI-UHFFFAOYSA-N Butyl carbitol 6-propylpiperonyl ether Chemical class C1=C(CCC)C(COCCOCCOCCCC)=CC2=C1OCO2 FIPWRIJSWJWJAI-UHFFFAOYSA-N 0.000 description 1
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 229910001218 Gallium arsenide Inorganic materials 0.000 description 1
- CBENFWSGALASAD-UHFFFAOYSA-N Ozone Chemical compound [O-][O+]=O CBENFWSGALASAD-UHFFFAOYSA-N 0.000 description 1
- 229910000577 Silicon-germanium Inorganic materials 0.000 description 1
- LCKIEQZJEYYRIY-UHFFFAOYSA-N Titanium ion Chemical compound [Ti+4] LCKIEQZJEYYRIY-UHFFFAOYSA-N 0.000 description 1
- 241000245032 Trillium Species 0.000 description 1
- LEVVHYCKPQWKOP-UHFFFAOYSA-N [Si].[Ge] Chemical compound [Si].[Ge] LEVVHYCKPQWKOP-UHFFFAOYSA-N 0.000 description 1
- 150000001298 alcohols Chemical class 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 229910003481 amorphous carbon Inorganic materials 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
- 239000003575 carbonaceous material Substances 0.000 description 1
- 229910017052 cobalt Inorganic materials 0.000 description 1
- 239000010941 cobalt Substances 0.000 description 1
- GUTLYIVDDKVIGB-UHFFFAOYSA-N cobalt atom Chemical compound [Co] GUTLYIVDDKVIGB-UHFFFAOYSA-N 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 238000011109 contamination Methods 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 239000010432 diamond Substances 0.000 description 1
- 238000004146 energy storage Methods 0.000 description 1
- 229910052732 germanium Inorganic materials 0.000 description 1
- GNPVGFCGXDBREM-UHFFFAOYSA-N germanium atom Chemical compound [Ge] GNPVGFCGXDBREM-UHFFFAOYSA-N 0.000 description 1
- 239000012212 insulator Substances 0.000 description 1
- 239000012702 metal oxide precursor Substances 0.000 description 1
- 238000004377 microelectronic Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 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
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 238000002161 passivation Methods 0.000 description 1
- 238000005268 plasma chemical vapour deposition Methods 0.000 description 1
- 229910021420 polycrystalline silicon Inorganic materials 0.000 description 1
- 229920005591 polysilicon Polymers 0.000 description 1
- BDERNNFJNOPAEC-UHFFFAOYSA-N propan-1-ol Chemical class CCCO BDERNNFJNOPAEC-UHFFFAOYSA-N 0.000 description 1
- 125000001436 propyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])[H] 0.000 description 1
- 229910052594 sapphire Inorganic materials 0.000 description 1
- 239000010980 sapphire Substances 0.000 description 1
- 239000002210 silicon-based material Substances 0.000 description 1
- 238000010998 test method Methods 0.000 description 1
- 238000002230 thermal chemical vapour deposition Methods 0.000 description 1
- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 description 1
- 229910052721 tungsten Inorganic materials 0.000 description 1
- 239000010937 tungsten Substances 0.000 description 1
- 238000005019 vapor deposition process Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 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
- C23C28/00—Coating for obtaining at least two superposed coatings either by methods not provided for in a single one of groups C23C2/00 - C23C26/00 or by combinations of methods provided for in subclasses C23C and C25C or C25D
- C23C28/04—Coating for obtaining at least two superposed coatings either by methods not provided for in a single one of groups C23C2/00 - C23C26/00 or by combinations of methods provided for in subclasses C23C and C25C or C25D only coatings of inorganic non-metallic material
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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
- C23C16/455—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
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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
- C23C16/04—Coating on selected surface areas, e.g. using masks
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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
- C23C16/405—Oxides of refractory metals or yttrium
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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
- C23C16/455—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
- C23C16/45529—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 specially adapted for making a layer stack of alternating different compositions or gradient compositions
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- C—CHEMISTRY; METALLURGY
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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
- C23C28/00—Coating for obtaining at least two superposed coatings either by methods not provided for in a single one of groups C23C2/00 - C23C26/00 or by combinations of methods provided for in subclasses C23C and C25C or C25D
- C23C28/04—Coating for obtaining at least two superposed coatings either by methods not provided for in a single one of groups C23C2/00 - C23C26/00 or by combinations of methods provided for in subclasses C23C and C25C or C25D only coatings of inorganic non-metallic material
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- C23C28/00—Coating for obtaining at least two superposed coatings either by methods not provided for in a single one of groups C23C2/00 - C23C26/00 or by combinations of methods provided for in subclasses C23C and C25C or C25D
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Abstract
Description
Claims (20)
- 金属酸化物材料を形成する方法であって、
処理チャンバ内に基板を位置決めすることであって、前記基板が、不動態化された表面及び不動態化されていない表面を含む、基板を位置決めすることと;
前記不動態化された表面が少なくとも実質的に第1の金属酸化物層を含まないままである一方で、前記不動態化されていない表面の上又は上方に前記第1の金属酸化物層を生成するために、前記基板を第1の金属アルコキシド前駆体に曝露させることであって、前記第1の金属アルコキシド前駆体が、熱分解されて、前記第1の金属酸化物層を生成する、基板を第1の金属アルコキシド前駆体に曝露させることと;
前記不動態化された表面が少なくとも実質的に第2の金属酸化物層を含まないままである一方で、前記第1の金属酸化物層の上に前記第2の金属酸化物層を生成するために、前記基板を第2の金属アルコキシド前駆体に曝露させることであって、前記第2の金属アルコキシド前駆体が、熱分解されて、前記第2の金属酸化物層を生成する、基板を第2の金属アルコキシド前駆体に曝露させることと;
前記第1の金属酸化物層と前記第2の金属酸化物層が交互になった層を含むラミネートフィルムを生成するために、前記基板を前記第1の金属アルコキシド前駆体及び前記第2の金属アルコキシド前駆体に曝露させることを連続的に繰り返すことと
を含み、
前記第1の金属アルコキシド前駆体及び前記第2の金属アルコキシド前駆体が、独立して、チタン、ジルコニウム、ハフニウム、アルミニウム、及びランタンからなる群より選択される金属を含み、
前記第1の金属アルコキシド前駆体と前記第2の金属アルコキシド前駆体とが異なる金属を有する、
方法。 - 前記ラミネートフィルムが非晶質である、請求項1に記載の方法。
- 前記第1の金属酸化物層及び/又は前記第2の金属酸化物層を生成するときに、前記基板が約150℃から約450℃の温度で維持される、請求項1に記載の方法。
- 前記第1の金属酸化物層及び前記第2の金属酸化物層のそれぞれが、独立して、約0.1nmから約5nmの厚さを有する、請求項1に記載の方法。
- 前記ラミネートフィルムが、約10対から約50対の前記第1の金属酸化物層及び前記第2の金属酸化物層を含む、請求項1に記載の方法。
- 前記ラミネートフィルムが、約5nmから約50nmの厚さを有する、請求項1に記載の方法。
- 前記第1の金属酸化物層が、第1のパルス化学気相堆積プロセス中に生成され、前記基板が、前記第1のパルス化学気相堆積プロセス中に前記第1の金属アルコキシド前駆体及び第1のパージガスに連続的に曝露され、前記基板が、約0.1秒から約10秒の間、前記第1の金属アルコキシド前駆体に、また約1秒から約120秒の間、前記第1のパージガスに曝露される、請求項1に記載の方法。
- 前記第2の金属酸化物層が、第2のパルス化学気相堆積プロセス中に生成され、前記基板が、前記第2のパルス化学気相堆積プロセス中に前記第2の金属アルコキシド前駆体及び第2のパージガスに連続的に曝露され、前記基板が、約0.1秒から約10秒の間、前記第2の金属アルコキシド前駆体に、また約1秒から約120秒の間、前記第2のパージガスに曝露される、請求項1に記載の方法。
- 前記第1の金属アルコキシド前駆体及び前記第2の金属アルコキシド前駆体が、独立して、金属プロポキシド化合物又は金属ブトキシド化合物を含む、請求項1に記載の方法。
- 前記第1の金属アルコキシド前駆体及び前記第2の金属アルコキシド前駆体が、独立して、チタン(IV)n-プロポキシド、チタン(IV)イソ-プロポキシド、チタン(IV)n-ブトキシド、チタン(IV)tert-ブトキシド、ハフニウム(IV)n-プロポキシド、ハフニウム(IV)イソ-プロポキシド、ハフニウム(IV)n-ブトキシド、ハフニウム(IV)tert-ブトキシド、ジルコニウム(IV)n-プロポキシド、ジルコニウム(IV)イソ-プロポキシド、ジルコニウム(IV)n-ブトキシド、ジルコニウム(IV)tert-ブトキシド、アルミニウム(III)n-プロポキシド、アルミニウム(III)イソ-プロポキシド、アルミニウム(III)n-ブトキシド、アルミニウム(III)tert-ブトキシド、ランタン(III)n-プロポキシド、ランタン(III)イソ-プロポキシド、ランタン(III)n-ブトキシド、ランタン(III)tert-ブトキシド、それらの異性体、又はそれらの任意の組み合わせを含む、請求項1に記載の方法。
- 前記第1の金属酸化物層が酸化チタンを含み、前記第2の金属酸化物層が酸化ハフニウムを含む、請求項1に記載の方法。
- 前記第1の金属酸化物層が第1の金属を含み、前記第2の金属酸化物層が第2の金属を含み、前記ラミネートフィルムが、約5:1から約15:1の、前記第2の金属に対する前記第1の金属の原子比を有する、請求項1に記載の方法。
- 前記不動態化されていない表面が、ヒドリド基、水酸基、又はそれらの組み合わせで終端され、前記不動態化された表面が、1つ又は複数のアルキル基で終端される、請求項1に記載の方法。
- 少なくとも前記第1の金属アルコキシド前駆体又は前記第2の金属アルコキシド前駆体が、β-ヒドリド脱離プロセスによって熱分解される、請求項1に記載の方法。
- 少なくとも前記第1の金属アルコキシド前駆体又は前記第2の金属アルコキシド前駆体が、共反応物の不存在下で熱分解される、請求項1に記載の方法。
- 金属酸化物材料を形成する方法であって、
処理チャンバ内に基板を位置決めすることであって、前記基板が、不動態化された表面及び不動態化されていない表面を含む、基板を位置決めすることと;
前記不動態化された表面が少なくとも実質的にラミネートフィルムを含まないままである一方で、前記ラミネートフィルムを前記不動態化されていない表面上に選択的に堆積することと
を含み、
前記ラミネートフィルムが、2対以上の、第1の金属酸化物層と第2の金属酸化物層が交互になった層を含み、
第1の金属アルコキシド前駆体が、第1のパルス化学気相堆積プロセス中に、熱分解されて、前記第1の金属酸化物層を生成し、
第2の金属アルコキシド前駆体が、第2のパルス化学気相堆積プロセス中に、熱分解されて、前記第2の金属酸化物層を生成し、
前記第1の金属アルコキシド前駆体及び前記第2の金属アルコキシド前駆体が、独立して、チタン、ジルコニウム、ハフニウム、アルミニウム、及びランタンからなる群より選択される金属を含み、
前記第1の金属アルコキシド前駆体と前記第2の金属アルコキシド前駆体とが、異なる金属を有する、
方法。 - 前記基板が、前記第1のパルス化学気相堆積プロセス中に第1の温度で、また前記第2のパルス化学気相堆積プロセス中に第2の温度で維持され、前記第1の温度及び前記第2の温度のそれぞれが、独立して、約150℃から約450℃である、請求項16に記載の方法。
- 前記第1の温度及び前記第2の温度のそれぞれが、独立して、約200℃から約350℃である、請求項17に記載の方法。
- 前記第1の金属酸化物層及び前記第2の金属酸化物層のそれぞれが、独立して、約0.1nmから約5nmの厚さを有し、前記ラミネートフィルムが、約10対から約50対の、前記第1の金属酸化物層及び前記第2の金属酸化物層を有する、請求項16に記載の方法。
- 金属酸化物材料を形成する方法であって、
処理チャンバ内に基板を位置決めすることであって、前記基板が、不動態化された表面及び不動態化されていない表面を含む、基板を位置決めすることと;
前記不動態化された表面が少なくとも実質的に第1の金属酸化物層を含まないままである一方で、前記不動態化されていない表面の上又は上方に前記第1の金属酸化物層を生成するために、前記基板を第1の金属アルコキシド前駆体に曝露させることであって、前記第1の金属アルコキシド前駆体が、熱分解されて、前記第1の金属酸化物層を生成し、その一方で、前記基板が約150℃から約350℃の第1の温度で維持される、基板を第1の金属アルコキシド前駆体に曝露させることと;
前記不動態化された表面が少なくとも実質的に第2の金属酸化物層を含まないままである一方で、前記第1の金属酸化物層の上に前記第2の金属酸化物層を生成するために、前記基板を第2の金属アルコキシド前駆体に曝露させることであって、前記第2の金属アルコキシド前駆体が、熱分解されて、前記第2の金属酸化物層を生成し、その一方で、前記基板が約150℃から約350℃の第2の温度で維持される、基板を第2の金属アルコキシド前駆体に曝露させることと;
前記第1の金属酸化物層と前記第2の金属酸化物層が交互になった層を含むラミネートフィルムを生成するために、前記基板を前記第1の金属アルコキシド前駆体及び前記第2の金属アルコキシド前駆体に曝露させることを連続的に繰り返すことであって、前記ラミネートフィルムが、約10対から約100対の、前記第1の金属酸化物層及び前記第2の金属酸化物層を含む、前記基板を前記第1の金属アルコキシド前駆体及び前記第2の金属アルコキシド前駆体に曝露させることを連続的に繰り返すことと
を含み、
前記第1の金属酸化物層及び前記第2の金属酸化物層が、独立して、酸化チタン、酸化ジルコニウム、酸化ハフニウム、酸化アルミニウム、酸化ランタン、及びそれらのドーパントからなる群より選択される金属酸化物を含み、
前記第1の金属酸化物層と前記第2の金属酸化物層とが異なる金属酸化物を含む、
方法。
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