WO2022137544A1 - 基板処理装置、液体原料補充システム、半導体装置の製造方法、及びプログラム - Google Patents
基板処理装置、液体原料補充システム、半導体装置の製造方法、及びプログラム Download PDFInfo
- Publication number
- WO2022137544A1 WO2022137544A1 PCT/JP2020/048857 JP2020048857W WO2022137544A1 WO 2022137544 A1 WO2022137544 A1 WO 2022137544A1 JP 2020048857 W JP2020048857 W JP 2020048857W WO 2022137544 A1 WO2022137544 A1 WO 2022137544A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- raw material
- liquid raw
- valve
- liquid
- gas
- Prior art date
Links
- 239000007788 liquid Substances 0.000 title claims abstract description 367
- 239000000758 substrate Substances 0.000 title claims abstract description 44
- 239000004065 semiconductor Substances 0.000 title claims description 10
- 238000004519 manufacturing process Methods 0.000 title claims description 7
- 239000007858 starting material Substances 0.000 title abstract 12
- 238000003860 storage Methods 0.000 claims abstract description 138
- 238000011144 upstream manufacturing Methods 0.000 claims abstract description 12
- 239000002994 raw material Substances 0.000 claims description 322
- 238000000034 method Methods 0.000 claims description 69
- 230000008016 vaporization Effects 0.000 claims description 58
- 230000008569 process Effects 0.000 claims description 55
- 238000009834 vaporization Methods 0.000 claims description 54
- 238000007599 discharging Methods 0.000 claims description 20
- 238000002309 gasification Methods 0.000 abstract 4
- 239000007789 gas Substances 0.000 description 174
- 235000012431 wafers Nutrition 0.000 description 47
- 239000012495 reaction gas Substances 0.000 description 28
- 239000012159 carrier gas Substances 0.000 description 18
- 230000007246 mechanism Effects 0.000 description 12
- 239000011261 inert gas Substances 0.000 description 7
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 6
- 239000012535 impurity Substances 0.000 description 6
- 239000001301 oxygen Substances 0.000 description 6
- 229910052760 oxygen Inorganic materials 0.000 description 6
- MWUXSHHQAYIFBG-UHFFFAOYSA-N Nitric oxide Chemical compound O=[N] MWUXSHHQAYIFBG-UHFFFAOYSA-N 0.000 description 4
- 230000005587 bubbling Effects 0.000 description 4
- -1 ethylmethyl Chemical group 0.000 description 4
- 238000007789 sealing Methods 0.000 description 4
- 239000010936 titanium Substances 0.000 description 4
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 3
- BLRPTPMANUNPDV-UHFFFAOYSA-N Silane Chemical compound [SiH4] BLRPTPMANUNPDV-UHFFFAOYSA-N 0.000 description 3
- 239000012298 atmosphere Substances 0.000 description 3
- 238000010923 batch production Methods 0.000 description 3
- 230000015572 biosynthetic process Effects 0.000 description 3
- 229910002091 carbon monoxide Inorganic materials 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 229910052735 hafnium Inorganic materials 0.000 description 3
- 238000010926 purge Methods 0.000 description 3
- 239000000376 reactant Substances 0.000 description 3
- 229910000077 silane Inorganic materials 0.000 description 3
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 description 2
- GQPLMRYTRLFLPF-UHFFFAOYSA-N Nitrous Oxide Chemical compound [O-][N+]#N GQPLMRYTRLFLPF-UHFFFAOYSA-N 0.000 description 2
- 230000009471 action Effects 0.000 description 2
- 239000006227 byproduct Substances 0.000 description 2
- 238000004891 communication Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000003028 elevating effect Effects 0.000 description 2
- VBJZVLUMGGDVMO-UHFFFAOYSA-N hafnium atom Chemical compound [Hf] VBJZVLUMGGDVMO-UHFFFAOYSA-N 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 238000005121 nitriding Methods 0.000 description 2
- 210000003254 palate Anatomy 0.000 description 2
- MNWRORMXBIWXCI-UHFFFAOYSA-N tetrakis(dimethylamido)titanium Chemical compound CN(C)[Ti](N(C)C)(N(C)C)N(C)C MNWRORMXBIWXCI-UHFFFAOYSA-N 0.000 description 2
- 229910052721 tungsten Inorganic materials 0.000 description 2
- 239000010937 tungsten Substances 0.000 description 2
- MGWGWNFMUOTEHG-UHFFFAOYSA-N 4-(3,5-dimethylphenyl)-1,3-thiazol-2-amine Chemical compound CC1=CC(C)=CC(C=2N=C(N)SC=2)=C1 MGWGWNFMUOTEHG-UHFFFAOYSA-N 0.000 description 1
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 1
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- MHAJPDPJQMAIIY-UHFFFAOYSA-N Hydrogen peroxide Chemical compound OO MHAJPDPJQMAIIY-UHFFFAOYSA-N 0.000 description 1
- ZOKXTWBITQBERF-UHFFFAOYSA-N Molybdenum Chemical compound [Mo] ZOKXTWBITQBERF-UHFFFAOYSA-N 0.000 description 1
- CGRVKSPUKAFTBN-UHFFFAOYSA-N N-silylbutan-1-amine Chemical compound CCCCN[SiH3] CGRVKSPUKAFTBN-UHFFFAOYSA-N 0.000 description 1
- CBENFWSGALASAD-UHFFFAOYSA-N Ozone Chemical compound [O-][O+]=O CBENFWSGALASAD-UHFFFAOYSA-N 0.000 description 1
- 229910003691 SiBr Inorganic materials 0.000 description 1
- 229910003902 SiCl 4 Inorganic materials 0.000 description 1
- 229910004014 SiF4 Inorganic materials 0.000 description 1
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 1
- SEQDDYPDSLOBDC-UHFFFAOYSA-N Temazepam Chemical compound N=1C(O)C(=O)N(C)C2=CC=C(Cl)C=C2C=1C1=CC=CC=C1 SEQDDYPDSLOBDC-UHFFFAOYSA-N 0.000 description 1
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 description 1
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 description 1
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 1
- NRTOMJZYCJJWKI-UHFFFAOYSA-N Titanium nitride Chemical compound [Ti]#N NRTOMJZYCJJWKI-UHFFFAOYSA-N 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 229910052786 argon Inorganic materials 0.000 description 1
- GPBUGPUPKAGMDK-UHFFFAOYSA-N azanylidynemolybdenum Chemical compound [Mo]#N GPBUGPUPKAGMDK-UHFFFAOYSA-N 0.000 description 1
- LUXIMSHPDKSEDK-UHFFFAOYSA-N bis(disilanyl)silane Chemical compound [SiH3][SiH2][SiH2][SiH2][SiH3] LUXIMSHPDKSEDK-UHFFFAOYSA-N 0.000 description 1
- HSAQWYXSHWFVQL-UHFFFAOYSA-N butyliminotantalum Chemical compound CCCCN=[Ta] HSAQWYXSHWFVQL-UHFFFAOYSA-N 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 239000000969 carrier Substances 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- SFAZXBAPWCPIER-UHFFFAOYSA-N chloro-[chloro(dimethyl)silyl]-dimethylsilane Chemical compound C[Si](C)(Cl)[Si](C)(C)Cl SFAZXBAPWCPIER-UHFFFAOYSA-N 0.000 description 1
- KOPOQZFJUQMUML-UHFFFAOYSA-N chlorosilane Chemical compound Cl[SiH3] KOPOQZFJUQMUML-UHFFFAOYSA-N 0.000 description 1
- SLLGVCUQYRMELA-UHFFFAOYSA-N chlorosilicon Chemical compound Cl[Si] SLLGVCUQYRMELA-UHFFFAOYSA-N 0.000 description 1
- PMHQVHHXPFUNSP-UHFFFAOYSA-M copper(1+);methylsulfanylmethane;bromide Chemical compound Br[Cu].CSC PMHQVHHXPFUNSP-UHFFFAOYSA-M 0.000 description 1
- 230000008021 deposition Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- JTBAMRDUGCDKMS-UHFFFAOYSA-N dichloro-[dichloro(methyl)silyl]-methylsilane Chemical compound C[Si](Cl)(Cl)[Si](C)(Cl)Cl JTBAMRDUGCDKMS-UHFFFAOYSA-N 0.000 description 1
- MROCJMGDEKINLD-UHFFFAOYSA-N dichlorosilane Chemical compound Cl[SiH2]Cl MROCJMGDEKINLD-UHFFFAOYSA-N 0.000 description 1
- LICVGLCXGGVLPA-UHFFFAOYSA-N disilanyl(disilanylsilyl)silane Chemical compound [SiH3][SiH2][SiH2][SiH2][SiH2][SiH3] LICVGLCXGGVLPA-UHFFFAOYSA-N 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- SRLSISLWUNZOOB-UHFFFAOYSA-N ethyl(methyl)azanide;zirconium(4+) Chemical compound [Zr+4].CC[N-]C.CC[N-]C.CC[N-]C.CC[N-]C SRLSISLWUNZOOB-UHFFFAOYSA-N 0.000 description 1
- 230000006870 function Effects 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 229910000449 hafnium oxide Inorganic materials 0.000 description 1
- PDPJQWYGJJBYLF-UHFFFAOYSA-J hafnium tetrachloride Chemical compound Cl[Hf](Cl)(Cl)Cl PDPJQWYGJJBYLF-UHFFFAOYSA-J 0.000 description 1
- WIHZLLGSGQNAGK-UHFFFAOYSA-N hafnium(4+);oxygen(2-) Chemical compound [O-2].[O-2].[Hf+4] WIHZLLGSGQNAGK-UHFFFAOYSA-N 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
- 239000001257 hydrogen Substances 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 125000004435 hydrogen atom Chemical class [H]* 0.000 description 1
- 238000010030 laminating Methods 0.000 description 1
- 239000011344 liquid material Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 229910052750 molybdenum Inorganic materials 0.000 description 1
- 239000011733 molybdenum Substances 0.000 description 1
- 229910000476 molybdenum oxide Inorganic materials 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 229910052754 neon Inorganic materials 0.000 description 1
- GKAOGPIIYCISHV-UHFFFAOYSA-N neon atom Chemical compound [Ne] GKAOGPIIYCISHV-UHFFFAOYSA-N 0.000 description 1
- JCXJVPUVTGWSNB-UHFFFAOYSA-N nitrogen dioxide Inorganic materials O=[N]=O JCXJVPUVTGWSNB-UHFFFAOYSA-N 0.000 description 1
- QJGQUHMNIGDVPM-UHFFFAOYSA-N nitrogen group Chemical group [N] QJGQUHMNIGDVPM-UHFFFAOYSA-N 0.000 description 1
- 239000001272 nitrous oxide Substances 0.000 description 1
- QGLKJKCYBOYXKC-UHFFFAOYSA-N nonaoxidotritungsten Chemical compound O=[W]1(=O)O[W](=O)(=O)O[W](=O)(=O)O1 QGLKJKCYBOYXKC-UHFFFAOYSA-N 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 239000007800 oxidant agent Substances 0.000 description 1
- 230000001590 oxidative effect Effects 0.000 description 1
- TWNQGVIAIRXVLR-UHFFFAOYSA-N oxo(oxoalumanyloxy)alumane Chemical compound O=[Al]O[Al]=O TWNQGVIAIRXVLR-UHFFFAOYSA-N 0.000 description 1
- PQQKPALAQIIWST-UHFFFAOYSA-N oxomolybdenum Chemical compound [Mo]=O PQQKPALAQIIWST-UHFFFAOYSA-N 0.000 description 1
- BPUBBGLMJRNUCC-UHFFFAOYSA-N oxygen(2-);tantalum(5+) Chemical compound [O-2].[O-2].[O-2].[O-2].[O-2].[Ta+5].[Ta+5] BPUBBGLMJRNUCC-UHFFFAOYSA-N 0.000 description 1
- RVTZCBVAJQQJTK-UHFFFAOYSA-N oxygen(2-);zirconium(4+) Chemical compound [O-2].[O-2].[Zr+4] RVTZCBVAJQQJTK-UHFFFAOYSA-N 0.000 description 1
- NFHFRUOZVGFOOS-UHFFFAOYSA-N palladium;triphenylphosphane Chemical compound [Pd].C1=CC=CC=C1P(C=1C=CC=CC=1)C1=CC=CC=C1.C1=CC=CC=C1P(C=1C=CC=CC=1)C1=CC=CC=C1.C1=CC=CC=C1P(C=1C=CC=CC=1)C1=CC=CC=C1.C1=CC=CC=C1P(C=1C=CC=CC=1)C1=CC=CC=C1 NFHFRUOZVGFOOS-UHFFFAOYSA-N 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 125000002924 primary amino group Chemical group [H]N([H])* 0.000 description 1
- 230000004044 response Effects 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- VSZWPYCFIRKVQL-UHFFFAOYSA-N selanylidenegallium;selenium Chemical compound [Se].[Se]=[Ga].[Se]=[Ga] VSZWPYCFIRKVQL-UHFFFAOYSA-N 0.000 description 1
- 238000004904 shortening Methods 0.000 description 1
- FZHAPNGMFPVSLP-UHFFFAOYSA-N silanamine Chemical compound [SiH3]N FZHAPNGMFPVSLP-UHFFFAOYSA-N 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- AIFMYMZGQVTROK-UHFFFAOYSA-N silicon tetrabromide Chemical compound Br[Si](Br)(Br)Br AIFMYMZGQVTROK-UHFFFAOYSA-N 0.000 description 1
- FDNAPBUWERUEDA-UHFFFAOYSA-N silicon tetrachloride Chemical compound Cl[Si](Cl)(Cl)Cl FDNAPBUWERUEDA-UHFFFAOYSA-N 0.000 description 1
- ABTOQLMXBSRXSM-UHFFFAOYSA-N silicon tetrafluoride Chemical compound F[Si](F)(F)F ABTOQLMXBSRXSM-UHFFFAOYSA-N 0.000 description 1
- 229910052715 tantalum Inorganic materials 0.000 description 1
- GUVRBAGPIYLISA-UHFFFAOYSA-N tantalum atom Chemical compound [Ta] GUVRBAGPIYLISA-UHFFFAOYSA-N 0.000 description 1
- 229910001936 tantalum oxide Inorganic materials 0.000 description 1
- HSXKFDGTKKAEHL-UHFFFAOYSA-N tantalum(v) ethoxide Chemical compound [Ta+5].CC[O-].CC[O-].CC[O-].CC[O-].CC[O-] HSXKFDGTKKAEHL-UHFFFAOYSA-N 0.000 description 1
- 229910052719 titanium Inorganic materials 0.000 description 1
- OGIDPMRJRNCKJF-UHFFFAOYSA-N titanium oxide Inorganic materials [Ti]=O OGIDPMRJRNCKJF-UHFFFAOYSA-N 0.000 description 1
- XJDNKRIXUMDJCW-UHFFFAOYSA-J titanium tetrachloride Chemical compound Cl[Ti](Cl)(Cl)Cl XJDNKRIXUMDJCW-UHFFFAOYSA-J 0.000 description 1
- 230000007723 transport mechanism Effects 0.000 description 1
- IBOKZQNMFSHYNQ-UHFFFAOYSA-N tribromosilane Chemical compound Br[SiH](Br)Br IBOKZQNMFSHYNQ-UHFFFAOYSA-N 0.000 description 1
- WDVUXWDZTPZIIE-UHFFFAOYSA-N trichloro(2-trichlorosilylethyl)silane Chemical compound Cl[Si](Cl)(Cl)CC[Si](Cl)(Cl)Cl WDVUXWDZTPZIIE-UHFFFAOYSA-N 0.000 description 1
- LXEXBJXDGVGRAR-UHFFFAOYSA-N trichloro(trichlorosilyl)silane Chemical compound Cl[Si](Cl)(Cl)[Si](Cl)(Cl)Cl LXEXBJXDGVGRAR-UHFFFAOYSA-N 0.000 description 1
- ABDDAHLAEXNYRC-UHFFFAOYSA-N trichloro(trichlorosilylmethyl)silane Chemical compound Cl[Si](Cl)(Cl)C[Si](Cl)(Cl)Cl ABDDAHLAEXNYRC-UHFFFAOYSA-N 0.000 description 1
- PZKOFHKJGUNVTM-UHFFFAOYSA-N trichloro-[dichloro(trichlorosilyl)silyl]silane Chemical compound Cl[Si](Cl)(Cl)[Si](Cl)(Cl)[Si](Cl)(Cl)Cl PZKOFHKJGUNVTM-UHFFFAOYSA-N 0.000 description 1
- ZDHXKXAHOVTTAH-UHFFFAOYSA-N trichlorosilane Chemical compound Cl[SiH](Cl)Cl ZDHXKXAHOVTTAH-UHFFFAOYSA-N 0.000 description 1
- 239000005052 trichlorosilane Substances 0.000 description 1
- WPPVEXTUHHUEIV-UHFFFAOYSA-N trifluorosilane Chemical compound F[SiH](F)F WPPVEXTUHHUEIV-UHFFFAOYSA-N 0.000 description 1
- JLTRXTDYQLMHGR-UHFFFAOYSA-N trimethylaluminium Chemical compound C[Al](C)C JLTRXTDYQLMHGR-UHFFFAOYSA-N 0.000 description 1
- 238000009966 trimming Methods 0.000 description 1
- VEDJZFSRVVQBIL-UHFFFAOYSA-N trisilane Chemical compound [SiH3][SiH2][SiH3] VEDJZFSRVVQBIL-UHFFFAOYSA-N 0.000 description 1
- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 description 1
- 229910001930 tungsten oxide Inorganic materials 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
- ZVWKZXLXHLZXLS-UHFFFAOYSA-N zirconium nitride Chemical compound [Zr]#N ZVWKZXLXHLZXLS-UHFFFAOYSA-N 0.000 description 1
- 229910001928 zirconium oxide Inorganic materials 0.000 description 1
Images
Classifications
-
- 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
- C23C16/4412—Details relating to the exhausts, e.g. pumps, filters, scrubbers, particle traps
-
- 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
-
- 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
- C23C16/34—Nitrides
-
- 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
-
- 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]
- C23C16/45544—Atomic layer deposition [ALD] characterized by the apparatus
-
- 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
- C23C16/45561—Gas plumbing upstream of the reaction chamber
-
- 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
- C23C16/52—Controlling or regulating the coating process
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L21/00—Processes or apparatus adapted for the manufacture or treatment of semiconductor or solid state devices or of parts thereof
- H01L21/02—Manufacture or treatment of semiconductor devices or of parts thereof
- H01L21/04—Manufacture or treatment of semiconductor devices or of parts thereof the devices having potential barriers, e.g. a PN junction, depletion layer or carrier concentration layer
- H01L21/18—Manufacture or treatment of semiconductor devices or of parts thereof the devices having potential barriers, e.g. a PN junction, depletion layer or carrier concentration layer the devices having semiconductor bodies comprising elements of Group IV of the Periodic Table or AIIIBV compounds with or without impurities, e.g. doping materials
- H01L21/30—Treatment of semiconductor bodies using processes or apparatus not provided for in groups H01L21/20 - H01L21/26
- H01L21/31—Treatment of semiconductor bodies using processes or apparatus not provided for in groups H01L21/20 - H01L21/26 to form insulating layers thereon, e.g. for masking or by using photolithographic techniques; After treatment of these layers; Selection of materials for these layers
-
- 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
- H01L21/67—Apparatus specially adapted for handling semiconductor or electric solid state devices during manufacture or treatment thereof; Apparatus specially adapted for handling wafers during manufacture or treatment of semiconductor or electric solid state devices or components ; Apparatus not specifically provided for elsewhere
- H01L21/67005—Apparatus not specifically provided for elsewhere
- H01L21/67242—Apparatus for monitoring, sorting or marking
- H01L21/67253—Process monitoring, e.g. flow or thickness monitoring
Definitions
- the present disclosure relates to a substrate processing device, a liquid raw material replenishment system, a method for manufacturing a semiconductor device, and a program.
- Patent Document 1 discloses a liquid raw material replenishment system for replenishing a liquid raw material in a vaporization container of a substrate processing apparatus.
- An object of the present disclosure is to control the supply amount so that a predetermined amount of the liquid raw material is accurately supplied into the vaporization container when the liquid raw material is replenished in the vaporization container.
- a vaporization container for internally vaporizing a liquid raw material, a liquid raw material replenishment line having one end connected to the vaporization container and the other end connected to the supply source of the liquid raw material, and the liquid raw material replenishment line.
- a first valve provided in the above, a second valve provided on the upstream side of the first valve of the liquid raw material replenishment line, and a liquid raw material storage formed between the first valve and the second valve. The second valve is opened and the liquid raw material storage portion is filled with the liquid raw material in a state where the first valve is closed, and then the second valve is closed and the first valve is opened.
- the first valve and the second valve are opened and closed so that the liquid raw material is supplied into the vaporization container by the filling / discharging process of discharging the liquid raw material filled in the liquid raw material storage unit into the vaporization container.
- a technology comprising a control unit for controlling is provided.
- the supply amount can be controlled so that a predetermined amount of the liquid raw material is accurately supplied into the vaporization container.
- the Disclosers and others have diligently studied the relationship between the amount of liquid raw material stored in the storage tank and the in-plane uniformity of the film formed on the substrate by the raw material gas generated by vaporizing this liquid raw material. did.
- the present disclosers and the like may change the concentration of impurities contained in the vaporized raw material gas according to the amount (remaining amount) of the liquid raw material stored in the storage tank, and the liquid raw material is stored in the storage tank. It has been found that when the amount of the liquid raw material is small, the in-plane uniformity of the film formed on the substrate may be improved.
- FIGS. 1 to 5 An example of the substrate processing apparatus, the liquid raw material replenishment system, the manufacturing method of the semiconductor apparatus, and the program according to the embodiment of the present disclosure will be described with reference to FIGS. 1 to 5.
- the arrow H shown in the figure indicates the device vertical direction (vertical direction)
- the arrow W indicates the device width direction (horizontal direction)
- the arrow D indicates the device depth direction (horizontal direction).
- the drawings used in the following description are all schematic, and the dimensional relationship of each element, the ratio of each element, and the like shown in the drawings do not always match the actual ones. Further, even between the plurality of drawings, the relationship between the dimensions of each element, the ratio of each element, and the like do not always match.
- the substrate processing apparatus 10 provided with the liquid raw material replenishment system 780 includes a processing furnace 202 for processing the wafer 200 as a substrate.
- the processing furnace 202 has a cylindrical heater 207 extending in the vertical direction of the apparatus, and the heater 207 is supported by a heater base (not shown) as a holding plate.
- the heater 207 heats the inside of the processing chamber 201, which will be described later, to a predetermined temperature.
- a processing tube 203 as a processing unit having a cylindrical shape concentric with the heater 207 is arranged inside the heater 207.
- a processing chamber 201 for processing a plurality of wafers 200 is formed inside the processing tube 203. Specifically, a plurality of (for example, 25 to 200) wafers 200 are loaded in the vertical direction by the boat 217 as a substrate support, and the plurality of wafers 200 loaded by the boat 217 are loaded in the processing chamber 201. It is arranged inside the.
- a cylindrical heat insulating cylinder 218 is arranged at the lower part of the boat 217. With this configuration, the heat from the heater 207 is less likely to be transferred to the seal cap 219 side, which will be described later.
- a manifold (inlet flange) 209 having a cylindrical shape concentric with the processing pipe 203 is arranged below the processing pipe 203.
- the upper end of the manifold 209 faces the lower end of the processing pipe 203, and the manifold 209 supports the processing pipe 203 via an O-ring 220 as a sealing member.
- nozzles 410 and 420 extending in the vertical direction are arranged between the wall surface of the processing pipe 203 and the plurality of wafers 200 loaded by the boat 217. Further, in the nozzles 410 and 420, a plurality of supply holes 410a and 420a for supplying gas are formed in a range facing the wafer 200 in the horizontal direction, respectively. As a result, the gas ejected from the supply holes 410a and 420a flows toward the wafer 200.
- the lower end portion of the nozzles 410 and 420 is bent and penetrates the side wall of the manifold 209, and the lower end portion of the nozzles 410 and 420 protrudes to the outside of the manifold 209.
- the gas supply pipes 310 and 320 as gas supply lines are connected to the lower end portions of the nozzles 410 and 420, respectively. As a result, a plurality of types of gas are supplied to the processing chamber 201.
- the gas supply pipes 310 and 320 are connected to a mass flow controller (MFC) which is a flow control unit (flow control unit) in order from the upstream side of the gas flow direction (hereinafter referred to as “gas flow direction”) flowing through the gas supply pipes 310 and 320.
- MFC mass flow controller
- 312, 322 and valves 314 and 324 which are on-off valves, are provided, respectively.
- the ends of the gas supply pipes 510 and 520 as the gas supply line for supplying the inert gas are located on the downstream side in the gas flow direction with respect to the valves 314 and 324, respectively. It is connected.
- the gas supply pipes 510 and 520 are provided with MFC 512 and 522, which are flow control units (flow control units), and valves 514 and 524, which are on-off valves, in order from the upstream side in the flow direction of the gas flowing through the gas supply pipes 510 and 520. Each is provided.
- the raw material gas as the processing gas is supplied to the processing chamber 201 via the MFC 312, the valve 314, and the nozzle 410.
- the supply unit 308 for supplying the raw material gas to the processing chamber 201 includes a gas supply pipe 310, an MFC 312, a valve 314, and a nozzle 410.
- the raw material gas supply system is composed of the gas supply pipe 310, the MFC 312, and the valve 314.
- the nozzle 410 may be included in the raw material gas supply system.
- the raw material gas supply system can also be referred to as a raw material supply system.
- reaction gas as the processing gas is supplied from the gas supply pipe 320 to the processing chamber 201 via the MFC 322, the valve 324, and the nozzle 420.
- the reaction gas supply system (reactant supply system) is mainly composed of the gas supply pipe 320, the MFC 322, and the valve 324.
- the nozzle 420 may be included in the reaction gas supply system. When the reaction gas flows from the nozzle 420, the nozzle 420 may be referred to as a reaction gas nozzle.
- the inert gas is supplied from the gas supply pipes 510 and 520 to the processing chamber 201 via the MFC 512, 522, the valves 514 and 524, and the nozzles 410 and 420.
- the gas supply pipes 510, 520, MFC 512, 522, and valves 514, 325 mainly constitute an inert gas supply system.
- one end of the exhaust pipe 231 as an exhaust flow path for exhausting the atmosphere of the processing chamber 201 is connected to the wall surface of the manifold 209.
- a pressure sensor 245 as a pressure detector (pressure detection unit) for detecting the pressure in the processing chamber 201 and an APC (AutoPressure Controller) valve 243 as an exhaust valve (pressure adjusting unit) are attached to the exhaust pipe 231 for exhaust.
- a vacuum pump 246 as a vacuum exhaust device is attached to the end of the pipe 231.
- the APC valve 243 can perform vacuum exhaust and vacuum exhaust stop of the processing chamber 201 by opening and closing the valve while the vacuum pump 246 is operated, and further, the pressure is applied while the vacuum pump 246 is operated.
- the valve is configured so that the pressure in the processing chamber 201 can be adjusted by adjusting the valve opening degree based on the pressure information detected by the sensor 245.
- the exhaust system is mainly composed of the exhaust pipe 231, the APC valve 243, and the pressure sensor 245.
- the vacuum pump 246 may be included in the exhaust system.
- a seal cap 219 is provided as a furnace palate body capable of airtightly closing the lower end opening of the manifold 209.
- the seal cap 219 is configured to abut on the lower end of the manifold 209 from the lower side in the vertical direction.
- An O-ring 220 as a sealing member that comes into contact with the lower end of the manifold 209 is provided on the upper surface of the seal cap 219.
- a rotation mechanism 267 for rotating the boat 217 which will be described later, is installed.
- the rotation shaft 255 of the rotation mechanism 267 penetrates the seal cap 219 and is connected to the boat 217.
- the rotation mechanism 267 is configured to rotate the wafer 200 by rotating the boat 217.
- the seal cap 219 is configured to be raised and lowered in the vertical direction by a boat elevator 115 as a raising and lowering mechanism installed vertically outside the processing pipe 203.
- the boat elevator 115 is configured so that the boat 217 can be carried in and out of the processing chamber 201 by raising and lowering the seal cap 219.
- the boat elevator 115 is configured as a transport device (transport mechanism) for transporting the boat 217, that is, the wafer 200, into and out of the processing chamber 201.
- a shutter 219s is provided as a furnace palate body that can airtightly close the lower end opening of the manifold 209 while the seal cap 219 is lowered by the boat elevator 115.
- An O-ring 220c as a sealing member that comes into contact with the lower end of the manifold 209 is provided on the upper surface of the shutter 219s.
- the opening / closing operation of the shutter 219s (elevating / lowering operation, rotating operation, etc.) is controlled by the shutter opening / closing mechanism 115s.
- the processing chamber 201 is provided with a temperature sensor 263 as a temperature detector.
- a temperature sensor 263 As a temperature detector.
- the temperature sensor 263 is provided along the inner wall of the processing pipe 203 like the nozzles 410 and 420.
- the control unit 121 as the control unit provided in the substrate processing device 10 will be described.
- the control unit 121 is configured as a computer including a CPU (Central Processing Unit) 121a, a RAM (Random Access Memory) 121b, a storage device 121c, and an I / O port 121d.
- the RAM 121b, the storage device 121c, and the I / O port 121d are configured so that data can be exchanged with the CPU 121a via the internal bus 121e.
- An input / output device 122 configured as, for example, a touch panel or the like is connected to the control unit 121.
- the storage device 121c is composed of, for example, a flash memory, an HDD (Hard Disk Drive), or the like.
- a control program for controlling the operation of the substrate processing device various programs such as a liquid raw material replenishment program described later, data for executing each program, and the like are readablely stored.
- the RAM 121b is configured as a memory area (work area) in which programs, data, and the like read by the CPU 121a are temporarily held.
- the I / O port 121d includes the above-mentioned MFC 512, 522, 312, 322, valve 514, 524, 314, 324, pressure sensor 245, APC valve 243, vacuum pump 246, temperature sensor 263, heater 207, rotation mechanism 267, and boat. It is connected to an elevator 115, a shutter opening / closing mechanism 115s, an ultrasonic sensor 650 described later, an MFC 706, valves 758, 759, and the like.
- the CPU 121a is configured to read and execute a control program from the storage device 121c and read data from the storage device 121c in response to input of an operation command from the input / output device 122 or the like.
- the CPU 121a has an operation of adjusting the flow rate of various gases by the MFC 512, 522, 312, 322, an opening / closing operation of the valves 514, 524, 314, 324, an opening / closing operation of the APC valve 243, and a pressure sensor 245 so as to be in line with the contents of the read data.
- Pressure adjustment operation by APC valve 243, start and stop of vacuum pump 246, temperature adjustment operation of heater 207 based on temperature sensor 263, rotation and rotation speed adjustment operation of boat 217 by rotation mechanism 267, boat 217 by boat elevator 115 It is configured to be able to control the elevating operation of the shutter, the opening / closing operation of the shutter 219s by the shutter opening / closing mechanism 115s, and the like.
- the CPU 121a is configured to be able to control the opening and closing of the valve 758 as the second valve and the valve 759 as the first valve according to the execution of the liquid raw material replenishment program (liquid raw material replenishment process).
- the control unit 121 may be configured as a control unit that controls the opening and closing of the valves 758 and 759 of the liquid raw material replenishment system, and separately from the control unit 121, the ultrasonic sensors 650, MFC706, and valves 758, Other control units configured to enable control such as 759 may be provided.
- the control unit 121 is stored in an external storage device (for example, magnetic tape, magnetic disk such as flexible disk or hard disk, optical disk such as CD or DVD, magneto-optical disk such as MO, semiconductor memory such as USB memory or memory card) 123.
- the program can be configured by installing it on your computer.
- the storage device 121c and the external storage device 123 are configured as a computer-readable recording medium. Hereinafter, these are collectively referred to simply as a recording medium.
- recording medium When the term recording medium is used in the present specification, it may include only the storage device 121c alone, it may include only the external storage device 123 alone, or it may include both of them.
- the program may be provided to the computer by using a communication means such as the Internet or a dedicated line without using the external storage device 123.
- control of the ultrasonic sensors 650, MFC706, valves 758, and 759 described later by the control unit 121 will be described together with the actions described later.
- a storage tank 610 for storing a liquid raw material that becomes a raw material gas by vaporization will be described.
- the liquid raw material is vaporized in the storage tank 610 as a vaporization container.
- the storage tank 610 is formed, for example, in a rectangular parallelepiped shape or a cylindrical shape. Further, the storage space 612 formed inside the storage tank 610 includes a bottom portion 620, a wall portion 630 rising from the peripheral edge of the bottom portion 620, and a storage space 612 surrounded by the wall portion 630, as shown in FIG. It is formed by a ceiling portion 640 that closes from the upper side, and is a space that is sealed from the outside. The storage space 612 has a predetermined pressure. Further, the portion on the lower end side of the gas supply pipe 310 described above penetrates the ceiling portion 640 and is arranged in the storage space 612.
- the bottom portion 620 has a bottom surface 622 facing upward, and a recess 624 in which a part of the bottom surface 622 is recessed is formed in a portion of the bottom surface 622 on the central side in the device width direction and the device depth direction.
- the recess 624 extends in the vertical direction and has a rectangular cross section.
- the lower limit set value for the liquid raw material in the present embodiment is set to be higher (larger) than the lower limit value at which the liquid raw material can be stored in the storage space 612 (see the figure).
- the upper limit setting value for the liquid raw material in the present embodiment is set to be lower (smaller) than the upper limit value at which the liquid raw material can be stored in the storage space 612 (see the figure).
- An ultrasonic sensor 650 as a liquid level level sensor is arranged in a storage space 612, extends in the vertical direction, and has an upper end attached to a ceiling portion 640.
- the cross-sectional shape of the ultrasonic sensor 650 is a small rectangular shape as compared with the cross-sectional shape of the recess 624.
- the lower portion of the ultrasonic sensor 650 is disposed in the recess 624, and the sensor element 652 is attached to the lower end portion of the ultrasonic sensor 650.
- the ultrasonic waves generated by the sensor element 652 are reflected on the liquid surface of the liquid raw material, and the reflected waves are received by the receiving portion (not shown) of the ultrasonic sensor 650, whereby the ultrasonic sensor 650 is formed.
- the liquid level of the liquid raw material stored in the storage tank 610 is continuously detected.
- the ultrasonic sensor 650 functions as a continuous sensor (also referred to as a continuous sensor, a continuous level sensor, or a continuous liquid level sensor).
- the vaporization unit 700 is a device that vaporizes the liquid raw material stored in the storage tank 610 into a raw material gas by a bubbling method, and is a gas supply pipe 704 through which a carrier gas flows and a mass flow controller (MFC). ) 706 and is provided.
- MFC mass flow controller
- the gas supply pipe 704 penetrates the ceiling portion 640, and one end of the gas supply pipe 704 is arranged in the liquid raw material stored in the storage tank 610. Further, the MFC 706 is provided in a portion of the gas supply pipe 704 arranged outside the storage tank 610.
- the carrier gas whose flow rate is adjusted by the MFC 706 is supplied from one end of the gas supply pipe 704 into the liquid raw material stored in the storage tank 610. Then, the carrier gas acts on the liquid raw material, and the liquid raw material is vaporized. The vaporized raw material gas is pressure-fed to the gas supply pipe 310 by the pressure P0 in the storage tank 610.
- the amount of carrier gas supplied to the storage tank 610 (babler) can be controlled, but the actual amount of vaporization cannot be grasped. Therefore, in the present embodiment, the vaporization amount is grasped by detecting the decrease amount of the liquid raw material by using the above-mentioned ultrasonic sensor 650.
- the replenishment unit 750 as a liquid raw material replenishment system is a device for replenishing the liquid raw material pumped from the replenishment tank 760 to the storage tank 610, and is a liquid supply pipe 754 as a liquid raw material replenishment line through which the liquid raw material flows.
- a valve 759, which is an on-off valve as the first valve, and a valve 758, which is an on-off valve as the second valve, are provided.
- the replenishment tank 760 as a supply source of the liquid raw material may be included in the replenishment unit 750.
- the liquid supply pipe 754 penetrates the ceiling portion 640, and a nozzle 754N as a liquid raw material supply nozzle is formed at one end thereof.
- the nozzle 754N is arranged in the storage space 612, and the discharge port 754A is arranged above the liquid level of the liquid raw material stored in the storage tank 610 (upper limit value of storage, see FIG. 1).
- the discharge port 754A By arranging the discharge port 754A above the liquid level of the liquid raw material in this way, the liquid raw material can be discharged from the liquid supply pipe 754 to the storage space 612.
- the liquid raw material is transferred from the liquid raw material storage section 756 to the storage space 612 due to the pressure difference between the pressure in the liquid raw material storage section 756 and the pressure difference in the storage space 612. Can be discharged.
- a downstream end portion 755 arranged so that the axial direction is in the vertical direction is formed in a portion continuous from the nozzle 754N of the liquid supply pipe 754.
- Valves 758 and 759 are provided at the downstream end 55.
- the valves 758 and 759 are provided in the liquid supply pipe 754 at a portion arranged outside the storage tank 610.
- the valves 758 and 759 are provided vertically above the storage tank 610.
- the valve 758 is provided on the upstream side (upper side) of the valve 759 away from the valve 759, and is a space for storing the liquid raw material by the liquid supply pipe 754 portion between the valve 758 and the valve 759.
- the portion 756 is formed.
- the liquid raw material storage unit 756 is provided vertically above the storage tank 610.
- the downstream end portion 755 is arranged in the vertical direction, but the downstream end portion 755 may be arranged so as to be inclined so that the nozzle 754N side is downward. Further, although both the valve 758 and the valve 759 are provided at the downstream end portion 55, the valve 758 may be provided on the upstream side of the downstream end portion 755. By arranging the valves 758 and the valves 759 in the vertical direction as in the present embodiment, the liquid raw material stored between the valves 758 and the valve 759 can be satisfactorily discharged by using gravity. ..
- the replenishment tank 760 is arranged outside the storage tank 610 and is connected to the other end of the liquid supply pipe 754.
- a pressure feed pipe 761 is connected to the upper part of the refill tank 760. The pressure feed gas is sent from the pressure feed pipe 761 to the replenishment tank 760, and the liquid raw material stored in the replenishment tank 760 is pressure-fed into the liquid supply pipe 754 by the pressure feed pressure P1 in the replenishment tank 760.
- the pressure feed pressure P1 in the replenishment tank 760 is preferably larger than the pressure P0 in the storage tank 610 and preferably 10 times or more the pressure P0.
- the number By setting the number to 10 times or more, a sufficient amount of liquid raw material can be filled in the liquid storage portion 756. If it is less than 10 times, the liquid reservoir 756 may be filled with a sufficient amount of the liquid raw material due to the atmosphere of the pressure P0 existing in the liquid reservoir 756 before the liquid raw material is filled in the liquid reservoir 756. There are things you can't do.
- the pressure difference is large, but it is also necessary to consider the valve on the pipe and the upper limit of the pressure resistance of the pipe.
- the pressure P0 in the storage tank 601 is 100 to 10000 Pa
- the pressure feed pressure P1 from the replenishment tank 760 is 0.1 to 10 MPa.
- the liquid storage portion 756 is filled with the liquid raw material by opening the valve 758 with the valve 759 closed. .. After that, by closing the valve 758 and opening the valve 759, the liquid raw material is discharged from the liquid storage unit 756 to the storage tank 610. That is, the liquid raw material is temporarily stored in the liquid storage unit 756, and the stored liquid raw material is discharged to the storage tank 610 to be replenished (filling / discharging treatment).
- the valves 758 and 759 are closed when the liquid raw material is not replenished.
- the capacity of the liquid raw material storage unit 756 is the capacity X0, the amount of the liquid raw material to be filled in the liquid raw material storage unit 756 is the fillable amount X1, and the amount of the liquid raw material discharged from the liquid raw material storage unit 756 by opening the valve 759. Is the emission amount X2, and the relationship is X0 ⁇ X1 ⁇ X2.
- the liquid raw material is vaporized in the storage tank 610, and when the valve 759 is opened, gas enters the liquid raw material storage section 756. When the valve 759 is closed and the valve 758 is opened in this state, the gas is compressed into the liquid raw material pumped from the liquid supply pipe 754 and pushed into the liquid raw material storage section 756.
- the reduced pressure state is a pressure lower than the atmospheric pressure, preferably a pressure P0.
- the capacity X0 is, for example, 20 cc or less, preferably 10 cc or less. From the viewpoint of improving the controllability of the supply amount, it is desirable that the volume is as small as possible, but from the viewpoint of shortening the replenishment processing time (improving the throughput), the capacity X0 is preferably 1 cc or more, for example.
- X2 is preferably not more than the amount of the liquid raw material (treatment consumption amount C) required to perform the film forming treatment described later a predetermined number of times (1 batch), and further is not more than 1/2 of the treatment consumption amount C. Is preferable. That is, it is preferable that the supply of the liquid raw material from the liquid raw material storage unit 756 is executed a plurality of times so that the amount becomes the same as or exceeds the processing consumption amount C.
- the chargeable amount X1 and the discharge amount X2 can be set by executing an operation in advance in the apparatus to measure the amount to be filled / discharged and storing the average value or the like.
- the processing chamber 201 in which a plurality of wafers 200 are loaded is heated at a predetermined temperature. Then, the raw material gas supply step of supplying the raw material gas containing a predetermined element from the supply hole 410a of the nozzle 410 to the processing chamber 201 and the reaction gas supply step of supplying the reaction gas from the supply hole 420a of the nozzle 420 are performed a predetermined number of times. Do (n times). As a result, a film containing a predetermined element is formed on the wafer 200.
- the predetermined number of times (n times) here is one batch process in the film forming process, and is set in advance. The predetermined number of times is referred to as "set number of times N" in this embodiment.
- a plurality of wafers 200 are loaded (wafer charged) on the boat 217.
- the shutter 219s is moved by the shutter opening / closing mechanism 115s to open the lower end opening of the manifold 209 (shutter open).
- the boat 217 loaded with the plurality of wafers 200 is lifted by the boat elevator 115 and carried into the processing chamber 201 (boat load).
- the seal cap 219 is in a state of sealing the lower end of the manifold 209 via the O-ring 220b.
- the processing chamber 201 is evacuated by the vacuum pump 246 so as to have a desired pressure (vacuum degree).
- the pressure in the processing chamber 201 is measured by the pressure sensor 245, and the APC valve 243 is feedback-controlled based on the measured pressure information (pressure adjustment).
- the vacuum pump 246 is always kept in operation until at least the processing for the wafer 200 is completed.
- the processing chamber 201 is heated by the heater 207 so as to have a desired temperature.
- the heating of the processing chamber 201 by the heater 207 is continuously performed at least until the processing of the wafer 200 is completed.
- the boat 217 and the wafer 200 are rotated by the rotation mechanism 267.
- the rotation of the boat 217 and the wafer 200 by the rotation mechanism 267 is continuously performed at least until the processing on the wafer 200 is completed.
- the liquid level of the liquid raw material stored in the storage tank 610 shown in FIG. 1 becomes the initial liquid level L0 as a predetermined filling level.
- the liquid raw material is stored in the storage tank 610.
- the initial liquid level L0 is the minimum amount of liquid raw material required for the ultrasonic sensor 650 to detect the liquid level, and the number of times of the film forming process described later is predetermined (.
- the set number of times N) is the liquid level when the total amount of the liquid raw material required for performing is stored in the storage tank 610.
- the minimum amount of liquid raw material required for an ultrasonic sensor 650 to detect a liquid level is the amount when the liquid level is located at the lower limit of the storage tank 610.
- the amount of the liquid raw material required to perform the film forming process a predetermined number of times is the raw material gas supply step, the residual gas removal step, the reaction gas supply step, and the residual gas removal step described later in this order. This is the amount required to form a film on the wafer 200 by performing the cycle to be performed a predetermined number of times (one or more times).
- the amount of the liquid raw material is referred to as "processing consumption amount C".
- the ultrasonic sensor 650 detects the amount of liquid actually consumed for the amount of liquid raw material required to perform the film forming process a predetermined number of times (set number of times N).
- a predetermined supply amount C1 may be set in advance from the average value of the amounts used by the same batch processing.
- the capacity X0 of the liquid raw material storage unit 756 is preferably equal to or smaller than the supply predetermined amount C1 and further, the fillable amount X1 to the liquid raw material storage unit 756 and the liquid raw material. It is preferable that the discharge amount X2 discharged from the storage unit 756 is equal to or smaller than the supply predetermined amount C1.
- the control unit 121 replenishes the storage tank 610 with the liquid raw material by the liquid raw material replenishment process shown in FIG.
- step S10 the liquid level L of the liquid raw material is detected by the ultrasonic sensor 650.
- step S12 it is determined whether or not the liquid level of the liquid raw material has reached the initial liquid level L0. When the liquid level of the liquid raw material has reached the initial liquid level L0, this process is terminated.
- step S14 If the liquid level of the liquid raw material has not reached the initial liquid level L0, the valve 758 is opened in step S14. Before opening the valve 758, as shown in FIG. 7A, the liquid raw material is filled up to the upstream side of the valve 758 of the liquid supply pipe 754. At this time, the valve 759 is closed. As shown in FIG. 7B, by opening the valve 758, the liquid storage unit 756 is filled with the liquid raw material by the pressure feed pressure from the replenishment tank 760 (filling step). In step S16, the liquid storage unit 756 is waited until the liquid raw material is filled, and then the process proceeds to step S18. Whether or not the filling of the liquid raw material is completed can be determined by the lapse of a predetermined time from the opening of the valve 758.
- the valve 758 is closed in step S18, and the valve 759 is opened in step S20. At this time, between steps S18 and S20, the state in which both the valve 758 and the valve 759 are closed is maintained for a predetermined time.
- the replenishment tank 760 is in communication with the storage tank 610. In this case, a large amount of raw material flows into the storage tank 610, and it becomes difficult to control the amount of liquid raw material supplied into the storage tank 610.
- it is preferable to control the opening / closing timing of both valves so that both valves are closed before opening one of the valves 758 and 759.
- step S22 the process waits until the liquid raw material is discharged from the liquid storage unit 756, and after the liquid raw material is discharged, the process proceeds to step S24. Whether or not the discharge of the liquid raw material is completed can be determined by the lapse of a predetermined time from the opening of the valve 759. In step S24, the valve 758 is closed, and the process returns to step S10 to repeat the filling / discharging process.
- step S24 and step S14 both the valve 758 and the valve 759 are maintained in a closed state, as in the case between steps S18 and S20.
- control unit 121 stores in advance the amount of the raw material gas required in the raw material gas supply process described later, and the control unit 121 controls the MFC 706 of the vaporization unit 700 and stores it in the storage tank 610.
- An inert gas is supplied as a carrier gas to the liquid raw material. As a result, the liquid raw material is vaporized into the raw material gas.
- the inert gas for example, a rare gas such as nitrogen (N 2 ) gas, argon (Ar) gas, helium (He) gas, neon (Ne) gas, and xenone (Xe) gas can be used.
- a rare gas such as nitrogen (N 2 ) gas, argon (Ar) gas, helium (He) gas, neon (Ne) gas, and xenone (Xe) gas
- N 2 nitrogen
- Ar argon
- He helium
- Ne neon
- Xe xenone
- valve 314 shown in FIG. 3 is opened to allow the raw material gas to flow to the gas supply pipe 310.
- the raw material gas one or more of the gases obtained by vaporizing the liquid raw material in the vaporization container can be used.
- the raw material gas silicon (Si) which is a semiconductor element and titanium (Ti), zirconium (Zr), hafnium (Hf), tantalum (Ta), aluminum (Al), molybdenum (Mo) which are metal elements are used. ), Tungsten (W) and other gases containing a predetermined element, which have a liquid state at normal temperature and pressure (that is, a gas which is a liquid raw material) can be used.
- the raw material gas can be obtained by vaporizing the liquid raw materials of these gases in the vaporization container.
- tetrakisdimethylaminosilane (Si [N (CH 3 ) 2 ] 4 , abbreviation: 4DMAS) gas trisdimethylaminosilane (Si [N (CH 3 ) 2 ] 3H , abbreviation: 3DMAS) gas as a Si-containing raw material
- Vista Charlie butylaminosilane (SiH 2 [NH (C 4 H 9 )] 2 abbreviation: BTBAS) gas, etc.
- Aminosilane raw material gas monochlorosilane (SiH 3 Cl, abbreviated as MCS) gas, dichlorosilane (SiH 2 Cl 2 , abbreviation: DCS) gas, trichlorosilane (SiHCl 3 , abbreviation: TCS) gas, tetrachlorosilane (SiCl 4 ,)
- STC sulfur chloride
- SiHCl 3 hexachlorodisilane
- Si 3 Cl 8 octachlorotrisilane
- BTCSE 1,2-bis (trichlorosilyl) ethane
- BTCSE bis (trichlorosilyl) methane
- tetrakis (dimethylamino) titanium Ti [N (CH 3 ) 2 ] 4 , abbreviated as TDMAT
- TiCl 4 titanium tetrachloride
- tetrakis (ethylmethyl) as an Hf-containing raw material.
- Hafnium (Hf [N (C 2 H 5 ) (CH 3 )] 4 abbreviation: TEMAH) gas, hafnium tetrachloride (HfCl 4 ) gas, tetrakis (ethylmethylamino) zirconium (Zr) as a Zr-containing raw material [N (C 2 H 5 ) (CH 3 )] 4 , abbreviation: TEMAZ) gas, trimethylaluminum (Al (CH 3 ) 3 , abbreviation: TMA) gas as an Al-containing raw material, tetraethoxytantal as a Ta-containing raw material (Ta (OC 2 H 5 ) 5 ), Trisethylmethylaminoterly butyliminotantal (Ta [NC (CH 3 ) 3 ] [N (C 2 H 5 ) CH 3 ] 3 ), Pentaethoxytantal (Ta (Ta (Ta) OC 2
- the flow rate of the raw material gas is adjusted by the MFC 312, and the raw material gas is supplied to the processing chamber 201 from the supply hole 410a of the nozzle 410.
- the valve 514 is opened to allow the carrier gas to flow into the gas supply pipe 510.
- the flow rate of the carrier gas is adjusted by the MFC 512, and the carrier gas is supplied together with the raw material gas from the supply hole 410a of the nozzle 410 into the processing chamber 201 and exhausted from the exhaust pipe 231.
- the valve 524 is opened and the carrier gas is allowed to flow into the gas supply pipe 520.
- the carrier gas is supplied to the processing chamber 201 via the gas supply pipe 520 and the nozzle 420, and is exhausted from the exhaust pipe 231.
- the APC valve 243 is appropriately adjusted so that the pressure in the processing chamber 201 is set to, for example, a pressure in the range of 1 to 1000 Pa.
- a pressure in the range of 1 to 1000 Pa for example, when the numerical value is described as 1 to 1000 Pa, it means 1 Pa or more and 1000 Pa or less. That is, 1 Pa and 1000 Pa are included in the numerical range. The same applies to the other numerical ranges described herein.
- the supply flow rate of the raw material gas controlled by the MFC 312 is, for example, a flow rate within the range of 10 to 2000 sccm, preferably 50 to 1000 sccm, and more preferably 100 to 500 sccm.
- the time for supplying the raw material gas to the wafer 200 is, for example, in the range of 1 to 60 seconds.
- the heater 207 heats the wafer 200 so that the temperature is in the range of, for example, 400 to 600 ° C.
- a layer containing a predetermined element contained in the raw material gas is formed on the outermost surface of the wafer 200.
- reaction gas supply step (example of treatment step)
- the valve 324 is opened and the reaction gas flows into the gas supply pipe 320.
- the reaction gas for example, an oxygen-containing gas (oxidizing gas, oxidizing agent) as a reaction gas (reactant) containing oxygen (O) and reacting with a predetermined element contained in the raw material gas is used.
- oxygen-containing gas include oxygen (O 2 ) gas, ozone (O 3 ) gas, plasma-excited O 2 gas (O 2 *), O 2 gas + hydrogen (H 2 ) gas, and water vapor (H 2 ).
- H 2 O 2 hydrogen peroxide
- N 2 O nitrous oxide
- NO nitrogen monoxide
- NO 2 nitrogen dioxide
- CO carbon monoxide
- CO 2 dioxide Carbon
- the flow rate of the reaction gas is adjusted by MFC322, is supplied to the wafer 200 in the processing chamber 201 from the supply hole 420a of the nozzle 420, and is exhausted from the exhaust pipe 231. That is, the wafer 200 is exposed to the reaction gas.
- the valve 524 is opened and the carrier gas flows into the gas supply pipe 520.
- the flow rate of the carrier gas is adjusted by the MFC 522, is supplied into the processing chamber 201 together with the reaction gas, and is exhausted from the exhaust pipe 231.
- the valve 514 is opened and the carrier gas is allowed to flow into the gas supply pipe 510.
- the carrier gas is supplied into the processing chamber 201 via the gas supply pipe 510 and the nozzle 410, and is exhausted from the exhaust pipe 231.
- the APC valve 243 is appropriately adjusted so that the pressure in the processing chamber 201 is set to, for example, a pressure in the range of 1 to 1000 Pa.
- the supply flow rate of the reaction gas controlled by the MFC 322 is, for example, a flow rate within the range of 5 to 40 slm, preferably 5 to 30 slm, and more preferably 10 to 20 slm.
- the time for supplying the reaction gas to the wafer 200 is, for example, in the range of 1 to 60 seconds.
- Other treatment conditions are the same as those in the raw material gas supply process described above.
- the only gases flowing in the processing chamber 201 are the reaction gas and the inert gas.
- the reaction gas reacts with at least a part of the predetermined element-containing layer formed on the wafer 200 in the raw material gas supply step to cause the predetermined element.
- the contained layer is oxidized to form an oxide layer containing a predetermined element and O. That is, the layer containing the predetermined element is modified into an oxide layer containing the predetermined element.
- the cycle of performing the vaporization step, the raw material gas supply step, the residual gas removal step, the reaction gas supply step, and the residual gas removal step described above in order is performed a predetermined number of times (one or more times).
- batch processing a plurality of steps are performed a plurality of times in this way, an oxide film obtained by laminating an oxide layer on the wafer 200 is formed.
- a cycle of performing the vaporization step, the raw material gas supply step, the residual gas removal step, the reaction gas supply step, and the residual gas removal step in order is performed a predetermined number of times, and the wafer 200 has a predetermined thickness. It is a process of forming a film. Then, in one batch, a film having a predetermined thickness is formed on the wafer 200.
- the predetermined thickness is, for example, 10 to 150 nm, preferably 40 to 100 nm, and more preferably 60 to 80 nm.
- the control unit 121 executes the liquid raw material replenishment process shown in FIG. 6 and replenishes the liquid raw material so that the liquid level L of the liquid raw material reaches the initial liquid level L0 (replenishment step).
- the replenishment of the liquid raw material by executing the liquid raw material replenishment process is carried out for each batch process. That is, the liquid raw material replenishment process is performed until the liquid level L, which is reduced by the processing consumption C, reaches the initial liquid level L0. Therefore, the filling / discharging process in the liquid raw material replenishment process is repeatedly executed until the amount of the supplied liquid raw material is equal to or exceeds the processing consumption amount C.
- liquid level L of the liquid raw material before the start of the batch processing is higher than the initial liquid level L0, in the subsequent liquid raw material replenishment step, only one cycle is required rather than exceeding the processing consumption C.
- the liquid level level L may reach the initial liquid level L0 when the filling / discharging process is performed until a small amount of the liquid raw material is supplied.
- the shutter 219s After carrying out, the shutter 219s is moved, and the lower end opening of the manifold 209 is sealed by the shutter 219s via the O-ring 220c (shutter close).
- the processed wafer 200 is carried out of the processing pipe 203 and then taken out from the boat 217 (wafer discharge).
- an oxide film containing a predetermined element contained in the raw material gas can be formed on the wafer 200.
- a titanium nitride film TiN film
- a zirconium nitride film ZrN film
- a hafnium nitride film HfN film
- Tantal nitride film TiN film
- aluminum nitride film AlN film
- molybdenum nitride film MoN film
- tungsten nitride film WN film
- the liquid raw material is replenished by controlling the opening and closing of the valves 758 and 759, temporarily storing the liquid in the liquid storage unit 756, and discharging the liquid material to the storage tank 610.
- the amount of liquid raw material to be replenished is small, if the liquid raw material is supplied by opening and closing only one valve, the pressure in the liquid supply pipe 754 fluctuates and the timing control of the opening and closing operation of one valve becomes accurate.
- the supply method of the present embodiment can accurately supply a certain amount of the liquid raw material even in a small amount.
- the liquid raw material is replenished to the storage tank 610 by the replenishment unit 750 (every batch refill).
- the amount of the liquid raw material stored in the storage tank 610 falls within a predetermined range.
- the amount of the liquid raw material stored in the storage tank 610 when the wafer 200 is film-formed becomes constant (the liquid level becomes constant). ..
- the initial liquid level L0 is required to perform the minimum amount of liquid raw material required for the ultrasonic sensor 650 to detect the liquid level and the film forming process to be performed a predetermined number of times.
- the amount of the liquid raw material (required to form the oxide film on the wafer 200) and the total amount are taken as the liquid level when stored in the storage tank 610.
- the liquid level is kept at the lowest permissible position so that the absolute amount of impurities contained in the liquid raw material stored in the storage tank 610 is as small as possible. Even if the amount of the liquid raw material used in one batch changes, the liquid raw material is refilled (refilled) by the reduced amount, and the liquid level after refilling is always kept at a constant level.
- the concentration of impurities contained in the raw material gas is smaller, so that the in-plane uniformity can be improved. ..
- the liquid raw material is vaporized into the raw material gas by the bubbling method, but the liquid raw material may be vaporized into the raw material gas by using a baking method, a direct vaporization method, or the like.
- the liquid raw material replenishment process is repeatedly executed until the liquid level L of the liquid raw material detected by using the ultrasonic sensor 650 reaches the initial liquid level L0, but the liquid level L is detected. It is also possible to carry out a liquid raw material replenishment process.
- the amount of the liquid raw material required for the batch processing is set in advance as the predetermined supply amount C1, and the amount of the liquid raw material (emission amount X2) supplied by executing the liquid raw material replenishment process for one cycle is taken into consideration.
- the predetermined number of times of the liquid raw material replenishment process that needs to be repeated in order to supply the predetermined supply amount C1 is calculated in advance.
- the liquid raw material replenishment process is executed according to the flow shown in FIG. In the liquid raw material replenishment process, the liquid raw material replenishment process is executed a predetermined number of times to replenish the amount of the liquid raw material required for the batch process.
- the valve 758 is opened in step S14.
- the liquid reservoir 756 is filled with the liquid raw material.
- the liquid storage unit 756 is waited until the liquid raw material is filled, and after filling, the valve 758 is closed in step S18 and the valve 759 is opened in step S20.
- the valve 759 By opening the valve 759, the liquid raw material is discharged from the liquid storage unit 756, and the liquid raw material is supplied to the storage tank 610 from the opening of the nozzle 754N.
- the amount of the liquid raw material supplied to the storage tank 610 by this operation is the discharge amount X2.
- step S22 the liquid raw material is waited until the liquid raw material is discharged from the liquid storage unit 756, and after the liquid raw material is discharged, the valve 758 is closed in step S24. Then, in step S26, it is determined whether or not the procedures of steps S14 to S24 have been executed a predetermined number of times. If the determination in step S26 is denied, the process returns to step S14 and the process is repeated. If the determination is affirmed, this process ends.
- the supply predetermined amount C1 in advance in this way, even if a problem occurs in a liquid level sensor such as an ultrasonic sensor 650, the liquid raw material can be accurately replenished.
- the liquid raw material storage portion 756 for storing the liquid raw material is formed by the liquid supply pipe 754 portion between the valve 758 and the valve 759, but the liquid supply pipe 754 is formed between the valve 758 and the valve 759.
- the liquid raw material storage unit 756A may be configured by, for example, a pipe having a larger pipe diameter than other portions, or may be configured by a buffer tank.
- the liquid raw material is vaporized in the storage tank 610 by using the bubbling method, but the liquid raw material is heated by providing a heater for heating the liquid raw material stored in the storage tank 610. It may be vaporized by doing so.
- the supply amount can be controlled so that a predetermined amount of the liquid raw material is accurately supplied into the vaporization container.
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- General Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Manufacturing & Machinery (AREA)
- Computer Hardware Design (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Power Engineering (AREA)
- Condensed Matter Physics & Semiconductors (AREA)
- Chemical Vapour Deposition (AREA)
Abstract
Description
〔貯留タンク〕 次に、気化することで原料ガスとなる液体原料を貯留する貯留タンク610について説明する。気化容器としての貯留タンク610内で液体原料は気化される。
なお、充填可能量X1及び排出量X2は、装置において予め動作を実行して充填/排出される量を計測し、その平均値等を記憶させて設定することができる。
なお、ステップS24とステップS14の間は、ステップS18とステップS20の間と同様に、バルブ758とバルブ759の両方が閉鎖された状態が維持される。
[気化工程] 貯留タンク610に貯留されている液体原料を原料ガスに気化する。
特に、液体原料中に含まれる不純物に対して、蒸気圧が低い液体原料を用いることは、本開示技術による不純物の低減効果を得やすくなるためより好ましい。
121 制御部
201 処理室
310 ガス供給管
610 貯留タンク(気化容器)
754N ノズル(液体原料供給ノズル)
754A 吐出口
756 液体原料貯留部
759 バルブ(第1バルブ)
758 バルブ(第2バルブ)
760 補充タンク(タンク)
Claims (18)
- 液体原料を内部で気化させる気化容器と、
一端が前記気化容器に接続され、他端が前記液体原料の供給源に接続された液体原料補充ラインと、
前記液体原料補充ラインに設けられた第1バルブと、
前記液体原料補充ラインの前記第1バルブよりも上流側に設けられた第2バルブと、
前記第1バルブと前記第2バルブの間に形成された液体原料貯留部と、
前記第1バルブを閉鎖した状態で、前記第2バルブを開放して前記液体原料貯留部へ前記液体原料を充填した後、前記第2バルブを閉鎖して前記第1バルブを開放し前記液体原料貯留部に充填された前記液体原料を前記気化容器内へ排出する充填排出処理により、前記気化容器内に前記液体原料を供給するように、前記第1バルブ及び前記第2バルブの開閉を制御することが可能なように構成された制御部と、
を備えた基板処理装置。 - 基板を処理する処理室と、
前記処理室と前記気化容器を接続し、前記気化容器で前記液体原料が気化されることで得られる処理ガスを前記処理室内に導入する処理ガス供給配管と、
を備え、
前記制御部は、前記処理室内で前記基板に対する前記処理ガスを用いた処理が、予め設定された設定回数行われる毎に、前記充填排出処理を実行するように前記第1バルブ及び前記第2バルブを制御することが可能なように構成されている、
請求項1に記載の基板処理装置。 - 前記制御部は、前記気化容器内に供給される前記液体原料の量が、前記基板に対する前記処理ガスを用いた処理が前記設定回数行われることにより消費される処理消費量となるまで、前記充填排出処理を繰り返し行うように、前記第1バルブ及び前記第2バルブを制御することが可能なように構成されている、
請求項2に記載の基板処理装置。 - 1回の前記充填排出処理において前記気化容器内に排出される前記液体原料の量は、前記基板に対する前記処理ガスを用いた処理が前記設定回数行われることにより消費される処理消費量以下である、
請求項2または請求項3に記載の基板処理装置。 - 前記液体原料貯留部の容積は、前記基板に対する前記処理ガスを用いた処理が前記設定回数行われることにより消費される処理消費量以下である、
請求項2~請求項4のいずれか1項に記載の基板処理装置。 - 前記液体原料貯留部の容積は、1回の前記充填排出処理において前記気化容器内に排出される前記液体原料の量よりも大きい、
請求項1~請求項5のいずれか1項に記載の基板処理装置。 - 前記供給源から前記液体原料補充ラインへ送出される前記液体原料の送出圧力は、前記気化容器内の圧力よりも大きい、
請求項1~請求項6のいずれか1項に記載の基板処理装置。 - 前記送出圧力は、前記気化容器内圧力の10倍以上である、
請求項7に記載の基板処理装置。 - 前記気化容器内の前記液体原料の液面レベルを測定する液面レベルセンサを更に備え、
前記制御部は、前記液面レベルセンサで測定された前記液体原料の液面が、予め設定された充填レベルに達するまで、前記充填排出処理を所定回数実行するように、前記第1バルブ及び前記第2バルブを制御することが可能なように構成されている、
請求項1に記載の基板処理装置。 - 前記制御部は、前記液面レベルセンサで測定された前記液体原料の液面が前記充填レベルに達したら、前記充填排出処理を停止するように、前記第1バルブ及び前記第2バルブを制御することが可能なように構成されている、
請求項9に記載の基板処理装置。 - 前記制御部は、前記気化容器内に供給される前記液体原料の量が予め設定された供給所定量となるまで前記充填排出処理を所定回数実行するように、前記第1バルブ及び前記第2バルブを制御することが可能なように構成されている、
請求項1に記載の基板処理装置。 - 前記液体原料貯留部の容積は、前記供給所定量よりも小さい、請求項11に記載の基板処理装置。
- 前記気化容器内には、前記液体原料補充ラインに上流端が接続された液体原料供給ノズルが設けられ、
前記液体原料供給ノズルは、その吐出口が前記気化容器内に貯留された前記液体原料の液面よりも上方に位置するように配置されている、
請求項1~請求項12のいずれか1項に記載の基板処理装置。 - 前記第1バルブ及び前記第2バルブは、前記気化容器よりも鉛直上方に設けられている、
請求項1~請求項13のいずれか1項に記載の基板処理装置。 - 前記制御部は、前記充填排出処理において、前記第1バルブ及び前記第2バルブの制御を、一方を開放する前に両方が閉鎖される状態となるように実行することが可能なように構成されている、
請求項1~請求項14のいずれか1項に記載の基板処理装置。 - 一端が液体原料を内部で気化させる気化容器に接続され、他端が前記液体原料の供給源に接続された液体原料補充ラインと、
前記液体原料補充ラインに設けられた第1バルブと、
前記液体原料補充ラインの前記第1バルブよりも上流側に設けられた第2バルブと、
前記第1バルブと前記第2バルブの間に形成された液体原料貯留部と、
前記第1バルブを閉鎖した状態で前記第2バルブを開放して前記液体原料貯留部へ前記液体原料を充填した後、前記第2バルブを閉鎖して前記第1バルブを開放し前記液体原料貯留部に充填された前記液体原料を前記気化容器内へ排出する充填排出処理により、前記気化容器内に前記液体原料を供給するように、前記第1バルブ及び前記第2バルブの開閉を制御することが可能なように構成された制御部と、を有する、
液体原料補充システム。 - 液体原料を内部で気化させる気化容器と、
一端が前記気化容器に接続され、他端が前記液体原料の供給源に接続された液体原料補充ラインと、
前記液体原料補充ラインに設けられた第1バルブと、
前記液体原料補充ラインの前記第1バルブよりも上流側に設けられた第2バルブと、
前記第1バルブと前記第2バルブの間に形成された液体原料貯留部と、
を備える基板処理装置において、
前記第1バルブを閉鎖した状態で前記第2バルブを開放して前記液体原料貯留部へ前記液体原料を充填する充填工程と、
前記充填工程の後、前記第2バルブを閉鎖して前記第1バルブを開放し前記液体原料貯留部に充填された前記液体原料を前記気化容器内へ排出する排出工程と、
を行うことにより、前記気化容器内に前記液体原料を供給する、
半導体装置の製造方法。 - 液体原料を内部で気化させる気化容器と、
一端が前記気化容器に接続され、他端が前記液体原料の供給源に接続された液体原料補充ラインと、
前記液体原料補充ラインに設けられた第1バルブと、
前記液体原料補充ラインの前記第1バルブよりも上流側に設けられた第2バルブと、
前記第1バルブと前記第2バルブの間に形成された液体原料貯留部と、
を備える基板処理装置において、
前記第1バルブを閉鎖した状態で前記第2バルブを開放して前記液体原料貯留部へ前記液体原料を充填する充填手順と、
前記充填手順の後、前記第2バルブを閉鎖して前記第1バルブを開放し前記液体原料貯留部に充填された前記液体原料を前記気化容器内へ排出する排出手順と、
を行うことにより、前記気化容器内に前記液体原料を供給する手順を、コンピュータにより前記基板処理装置に実行させるプログラム。
Priority Applications (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN202080107745.1A CN116569312A (zh) | 2020-12-25 | 2020-12-25 | 基板处理装置、液体原料补充系统、半导体装置的制造方法及程序 |
KR1020237020760A KR20230109726A (ko) | 2020-12-25 | 2020-12-25 | 기판 처리 장치, 액체 원료 보충 시스템, 기판 처리 방법, 반도체 장치의 제조 방법 및 프로그램 |
PCT/JP2020/048857 WO2022137544A1 (ja) | 2020-12-25 | 2020-12-25 | 基板処理装置、液体原料補充システム、半導体装置の製造方法、及びプログラム |
TW110139469A TWI815201B (zh) | 2020-12-25 | 2021-10-25 | 基板處理裝置、液體原料補充系統、半導體裝置的製造方法,以及程式 |
US18/337,911 US20230332287A1 (en) | 2020-12-25 | 2023-06-20 | Substrate processing apparatus, liquid source replenishment system, substrate processing method, method of manufacturing semiconductor device and non-transitory computer-readable recording medium |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PCT/JP2020/048857 WO2022137544A1 (ja) | 2020-12-25 | 2020-12-25 | 基板処理装置、液体原料補充システム、半導体装置の製造方法、及びプログラム |
Related Child Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US18/337,911 Continuation US20230332287A1 (en) | 2020-12-25 | 2023-06-20 | Substrate processing apparatus, liquid source replenishment system, substrate processing method, method of manufacturing semiconductor device and non-transitory computer-readable recording medium |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2022137544A1 true WO2022137544A1 (ja) | 2022-06-30 |
Family
ID=82157998
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP2020/048857 WO2022137544A1 (ja) | 2020-12-25 | 2020-12-25 | 基板処理装置、液体原料補充システム、半導体装置の製造方法、及びプログラム |
Country Status (5)
Country | Link |
---|---|
US (1) | US20230332287A1 (ja) |
KR (1) | KR20230109726A (ja) |
CN (1) | CN116569312A (ja) |
TW (1) | TWI815201B (ja) |
WO (1) | WO2022137544A1 (ja) |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH08176826A (ja) * | 1994-12-28 | 1996-07-09 | Mitsubishi Electric Corp | Cvd法による薄膜の堆積装置及び堆積方法並びに該堆積装置又は該堆積方法で用いられるcvd原料及び液体原料容器 |
WO2018056346A1 (ja) * | 2016-09-21 | 2018-03-29 | 株式会社日立国際電気 | 基板処理装置、液体原料補充システム、半導体装置の製造方法、プログラム |
WO2018110649A1 (ja) * | 2016-12-15 | 2018-06-21 | 株式会社堀場エステック | 液体材料供給装置、液体材料供給方法、液体供給管のパージ方法、及び、材料ガス供給システム |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP6695701B2 (ja) * | 2016-02-03 | 2020-05-20 | 株式会社Screenホールディングス | 処理液気化装置と基板処理装置 |
JP6476342B1 (ja) * | 2018-10-15 | 2019-02-27 | オリジン電気株式会社 | 還元ガス供給装置及び処理済対象物の製造方法 |
-
2020
- 2020-12-25 WO PCT/JP2020/048857 patent/WO2022137544A1/ja active Application Filing
- 2020-12-25 KR KR1020237020760A patent/KR20230109726A/ko active Search and Examination
- 2020-12-25 CN CN202080107745.1A patent/CN116569312A/zh active Pending
-
2021
- 2021-10-25 TW TW110139469A patent/TWI815201B/zh active
-
2023
- 2023-06-20 US US18/337,911 patent/US20230332287A1/en active Pending
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH08176826A (ja) * | 1994-12-28 | 1996-07-09 | Mitsubishi Electric Corp | Cvd法による薄膜の堆積装置及び堆積方法並びに該堆積装置又は該堆積方法で用いられるcvd原料及び液体原料容器 |
WO2018056346A1 (ja) * | 2016-09-21 | 2018-03-29 | 株式会社日立国際電気 | 基板処理装置、液体原料補充システム、半導体装置の製造方法、プログラム |
WO2018110649A1 (ja) * | 2016-12-15 | 2018-06-21 | 株式会社堀場エステック | 液体材料供給装置、液体材料供給方法、液体供給管のパージ方法、及び、材料ガス供給システム |
Also Published As
Publication number | Publication date |
---|---|
CN116569312A (zh) | 2023-08-08 |
TW202226371A (zh) | 2022-07-01 |
US20230332287A1 (en) | 2023-10-19 |
TWI815201B (zh) | 2023-09-11 |
KR20230109726A (ko) | 2023-07-20 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US11155920B2 (en) | Substrate processing apparatus, and method for manufacturing semiconductor device | |
JP6448502B2 (ja) | 半導体装置の製造方法、基板処理装置及びプログラム | |
US11462401B2 (en) | Substrate processing apparatus, method of manufacturing semiconductor device, and non-transitory computer-readable recording medium | |
JP5977364B2 (ja) | 半導体装置の製造方法、基板処理装置及び記録媒体 | |
US11967501B2 (en) | Substrate processing apparatus and method of manufacturing semiconductor device | |
JP6230809B2 (ja) | 半導体装置の製造方法、基板処理装置およびプログラム | |
JP6721693B2 (ja) | 基板処理装置、液体原料補充システム、半導体装置の製造方法、プログラム | |
KR102505068B1 (ko) | 기판 처리 장치, 가스 노즐, 반도체 장치의 제조 방법 및 프로그램 | |
US20200312632A1 (en) | Substrate processing apparatus, method of manufacturing semiconductor device, and recording medium | |
WO2018088003A1 (ja) | 半導体装置の製造方法、基板処理装置およびプログラム | |
US20230407472A1 (en) | Method of manufacturing semiconductor device, substrate processing apparatus, and recording medium | |
JP2023101578A (ja) | 半導体装置の製造方法、プログラム、基板処理装置および基板処理方法 | |
WO2022137544A1 (ja) | 基板処理装置、液体原料補充システム、半導体装置の製造方法、及びプログラム | |
US20200399757A1 (en) | Substrate Processing Apparatus, Method of Manufacturing Semiconductor Device and Non-transitory Computer-readable Recording Medium | |
JP6867548B2 (ja) | 基板処理装置、半導体装置の製造方法及びプログラム | |
KR102559937B1 (ko) | 기판 처리 장치, 기판 보지부, 반도체 장치의 제조 방법 및 프로그램 |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
121 | Ep: the epo has been informed by wipo that ep was designated in this application |
Ref document number: 20967030 Country of ref document: EP Kind code of ref document: A1 |
|
WWE | Wipo information: entry into national phase |
Ref document number: 202080107745.1 Country of ref document: CN |
|
ENP | Entry into the national phase |
Ref document number: 20237020760 Country of ref document: KR Kind code of ref document: A |
|
NENP | Non-entry into the national phase |
Ref country code: DE |
|
122 | Ep: pct application non-entry in european phase |
Ref document number: 20967030 Country of ref document: EP Kind code of ref document: A1 |
|
NENP | Non-entry into the national phase |
Ref country code: JP |