JP7240517B2 - 半導体装置の製造方法、基板処理方法、プログラム、および基板処理装置 - Google Patents
半導体装置の製造方法、基板処理方法、プログラム、および基板処理装置 Download PDFInfo
- Publication number
- JP7240517B2 JP7240517B2 JP2021546540A JP2021546540A JP7240517B2 JP 7240517 B2 JP7240517 B2 JP 7240517B2 JP 2021546540 A JP2021546540 A JP 2021546540A JP 2021546540 A JP2021546540 A JP 2021546540A JP 7240517 B2 JP7240517 B2 JP 7240517B2
- Authority
- JP
- Japan
- Prior art keywords
- substrate
- layer
- gas
- temperature
- film
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 238000012545 processing Methods 0.000 title claims description 140
- 239000000758 substrate Substances 0.000 title claims description 75
- 239000004065 semiconductor Substances 0.000 title claims description 14
- 238000004519 manufacturing process Methods 0.000 title claims description 13
- 238000003672 processing method Methods 0.000 title claims description 3
- 239000007789 gas Substances 0.000 claims description 226
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 38
- 238000000034 method Methods 0.000 claims description 36
- 229910052757 nitrogen Inorganic materials 0.000 claims description 23
- 230000008569 process Effects 0.000 claims description 21
- 229910052739 hydrogen Inorganic materials 0.000 claims description 17
- 239000002994 raw material Substances 0.000 claims description 16
- 230000000051 modifying effect Effects 0.000 claims description 14
- 239000001257 hydrogen Substances 0.000 claims description 12
- 238000002407 reforming Methods 0.000 claims description 12
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 claims description 11
- 229910052736 halogen Inorganic materials 0.000 claims description 10
- 150000002367 halogens Chemical class 0.000 claims description 10
- 230000007423 decrease Effects 0.000 claims description 7
- 230000005284 excitation Effects 0.000 claims description 5
- 238000010438 heat treatment Methods 0.000 claims description 3
- 238000005121 nitriding Methods 0.000 claims description 2
- 235000012431 wafers Nutrition 0.000 description 115
- 238000006243 chemical reaction Methods 0.000 description 26
- 230000000694 effects Effects 0.000 description 24
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 22
- 230000015572 biosynthetic process Effects 0.000 description 20
- 239000000460 chlorine Substances 0.000 description 18
- 238000003860 storage Methods 0.000 description 15
- 230000004048 modification Effects 0.000 description 11
- 238000012986 modification Methods 0.000 description 11
- 239000012535 impurity Substances 0.000 description 10
- 230000007246 mechanism Effects 0.000 description 9
- 238000010586 diagram Methods 0.000 description 8
- 229910000069 nitrogen hydride Inorganic materials 0.000 description 8
- 230000008021 deposition Effects 0.000 description 7
- 150000004767 nitrides Chemical class 0.000 description 7
- 229910021529 ammonia Inorganic materials 0.000 description 5
- KOPOQZFJUQMUML-UHFFFAOYSA-N chlorosilane Chemical compound Cl[SiH3] KOPOQZFJUQMUML-UHFFFAOYSA-N 0.000 description 5
- 238000010926 purge Methods 0.000 description 5
- 239000005046 Chlorosilane Substances 0.000 description 4
- 238000001816 cooling Methods 0.000 description 4
- 238000005192 partition Methods 0.000 description 4
- OAKJQQAXSVQMHS-UHFFFAOYSA-N Hydrazine Chemical compound NN OAKJQQAXSVQMHS-UHFFFAOYSA-N 0.000 description 3
- 238000004891 communication Methods 0.000 description 3
- 230000008602 contraction Effects 0.000 description 3
- 229910052751 metal Inorganic materials 0.000 description 3
- 229910052710 silicon Inorganic materials 0.000 description 3
- 229910052581 Si3N4 Inorganic materials 0.000 description 2
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 2
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 description 2
- 230000004913 activation Effects 0.000 description 2
- 230000033228 biological regulation Effects 0.000 description 2
- 238000009826 distribution Methods 0.000 description 2
- 230000006870 function Effects 0.000 description 2
- 229910052735 hafnium Inorganic materials 0.000 description 2
- -1 hafnium nitride Chemical class 0.000 description 2
- PDPJQWYGJJBYLF-UHFFFAOYSA-J hafnium tetrachloride Chemical compound Cl[Hf](Cl)(Cl)Cl PDPJQWYGJJBYLF-UHFFFAOYSA-J 0.000 description 2
- 239000003779 heat-resistant material Substances 0.000 description 2
- 150000002431 hydrogen Chemical class 0.000 description 2
- 239000011261 inert gas Substances 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 229910052752 metalloid Inorganic materials 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 239000010955 niobium Substances 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- HBMJWWWQQXIZIP-UHFFFAOYSA-N silicon carbide Chemical compound [Si+]#[C-] HBMJWWWQQXIZIP-UHFFFAOYSA-N 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
- 238000001179 sorption measurement Methods 0.000 description 2
- OEIMLTQPLAGXMX-UHFFFAOYSA-I tantalum(v) chloride Chemical compound Cl[Ta](Cl)(Cl)(Cl)Cl OEIMLTQPLAGXMX-UHFFFAOYSA-I 0.000 description 2
- 239000010936 titanium Substances 0.000 description 2
- XJDNKRIXUMDJCW-UHFFFAOYSA-J titanium tetrachloride Chemical compound Cl[Ti](Cl)(Cl)Cl XJDNKRIXUMDJCW-UHFFFAOYSA-J 0.000 description 2
- 238000011144 upstream manufacturing Methods 0.000 description 2
- ZCYVEMRRCGMTRW-UHFFFAOYSA-N 7553-56-2 Chemical compound [I] ZCYVEMRRCGMTRW-UHFFFAOYSA-N 0.000 description 1
- WKBOTKDWSSQWDR-UHFFFAOYSA-N Bromine atom Chemical compound [Br] WKBOTKDWSSQWDR-UHFFFAOYSA-N 0.000 description 1
- ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 description 1
- YZCKVEUIGOORGS-OUBTZVSYSA-N Deuterium Chemical compound [2H] YZCKVEUIGOORGS-OUBTZVSYSA-N 0.000 description 1
- PXGOKWXKJXAPGV-UHFFFAOYSA-N Fluorine Chemical compound FF PXGOKWXKJXAPGV-UHFFFAOYSA-N 0.000 description 1
- 229910003865 HfCl4 Inorganic materials 0.000 description 1
- ZOKXTWBITQBERF-UHFFFAOYSA-N Molybdenum Chemical compound [Mo] ZOKXTWBITQBERF-UHFFFAOYSA-N 0.000 description 1
- KJTLSVCANCCWHF-UHFFFAOYSA-N Ruthenium Chemical compound [Ru] KJTLSVCANCCWHF-UHFFFAOYSA-N 0.000 description 1
- 229910003691 SiBr Inorganic materials 0.000 description 1
- 229910003902 SiCl 4 Inorganic materials 0.000 description 1
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 1
- 229910004537 TaCl5 Inorganic materials 0.000 description 1
- 229910003074 TiCl4 Inorganic materials 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
- 230000009471 action Effects 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
- 125000004429 atom Chemical group 0.000 description 1
- GDTBXPJZTBHREO-UHFFFAOYSA-N bromine Substances BrBr GDTBXPJZTBHREO-UHFFFAOYSA-N 0.000 description 1
- 229910052794 bromium Inorganic materials 0.000 description 1
- VQPFDLRNOCQMSN-UHFFFAOYSA-N bromosilane Chemical compound Br[SiH3] VQPFDLRNOCQMSN-UHFFFAOYSA-N 0.000 description 1
- 239000006227 byproduct Substances 0.000 description 1
- 239000012159 carrier gas Substances 0.000 description 1
- 229910052801 chlorine Inorganic materials 0.000 description 1
- SLLGVCUQYRMELA-UHFFFAOYSA-N chlorosilicon Chemical compound Cl[Si] SLLGVCUQYRMELA-UHFFFAOYSA-N 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- PMHQVHHXPFUNSP-UHFFFAOYSA-M copper(1+);methylsulfanylmethane;bromide Chemical compound Br[Cu].CSC PMHQVHHXPFUNSP-UHFFFAOYSA-M 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 229910052805 deuterium Inorganic materials 0.000 description 1
- RAABOESOVLLHRU-UHFFFAOYSA-N diazene Chemical compound N=N RAABOESOVLLHRU-UHFFFAOYSA-N 0.000 description 1
- 229910000071 diazene Inorganic materials 0.000 description 1
- MROCJMGDEKINLD-UHFFFAOYSA-N dichlorosilane Chemical compound Cl[SiH2]Cl MROCJMGDEKINLD-UHFFFAOYSA-N 0.000 description 1
- 229910001873 dinitrogen Inorganic materials 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 229910052731 fluorine Inorganic materials 0.000 description 1
- 239000011737 fluorine Substances 0.000 description 1
- XPBBUZJBQWWFFJ-UHFFFAOYSA-N fluorosilane Chemical compound [SiH3]F XPBBUZJBQWWFFJ-UHFFFAOYSA-N 0.000 description 1
- VBJZVLUMGGDVMO-UHFFFAOYSA-N hafnium atom Chemical compound [Hf] VBJZVLUMGGDVMO-UHFFFAOYSA-N 0.000 description 1
- 229910052740 iodine Inorganic materials 0.000 description 1
- 239000011630 iodine Substances 0.000 description 1
- IDIOJRGTRFRIJL-UHFFFAOYSA-N iodosilane Chemical compound I[SiH3] IDIOJRGTRFRIJL-UHFFFAOYSA-N 0.000 description 1
- 229910052746 lanthanum Inorganic materials 0.000 description 1
- FZLIPJUXYLNCLC-UHFFFAOYSA-N lanthanum atom Chemical compound [La] FZLIPJUXYLNCLC-UHFFFAOYSA-N 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 229910052750 molybdenum Inorganic materials 0.000 description 1
- 239000011733 molybdenum Substances 0.000 description 1
- 229910052758 niobium Inorganic materials 0.000 description 1
- GUCVJGMIXFAOAE-UHFFFAOYSA-N niobium atom Chemical compound [Nb] GUCVJGMIXFAOAE-UHFFFAOYSA-N 0.000 description 1
- 125000004433 nitrogen atom Chemical group N* 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 238000004375 physisorption Methods 0.000 description 1
- 239000010453 quartz Substances 0.000 description 1
- 239000012495 reaction gas Substances 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 230000004044 response Effects 0.000 description 1
- 229910052707 ruthenium Inorganic materials 0.000 description 1
- VSZWPYCFIRKVQL-UHFFFAOYSA-N selanylidenegallium;selenium Chemical compound [Se].[Se]=[Ga].[Se]=[Ga] VSZWPYCFIRKVQL-UHFFFAOYSA-N 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
- 229910010271 silicon carbide 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
- CFTHARXEQHJSEH-UHFFFAOYSA-N silicon tetraiodide Chemical compound I[Si](I)(I)I CFTHARXEQHJSEH-UHFFFAOYSA-N 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 229910052712 strontium Inorganic materials 0.000 description 1
- CIOAGBVUUVVLOB-UHFFFAOYSA-N strontium atom Chemical compound [Sr] CIOAGBVUUVVLOB-UHFFFAOYSA-N 0.000 description 1
- 239000000126 substance Substances 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
- MZLGASXMSKOWSE-UHFFFAOYSA-N tantalum nitride Chemical compound [Ta]#N MZLGASXMSKOWSE-UHFFFAOYSA-N 0.000 description 1
- 238000005979 thermal decomposition reaction Methods 0.000 description 1
- 229910052719 titanium Inorganic materials 0.000 description 1
- 230000007723 transport mechanism Effects 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
- 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
- JLTRXTDYQLMHGR-UHFFFAOYSA-N trimethylaluminium Chemical compound C[Al](C)C JLTRXTDYQLMHGR-UHFFFAOYSA-N 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
- 230000008016 vaporization Effects 0.000 description 1
- 229910052727 yttrium Inorganic materials 0.000 description 1
- VWQVUPCCIRVNHF-UHFFFAOYSA-N yttrium atom Chemical compound [Y] VWQVUPCCIRVNHF-UHFFFAOYSA-N 0.000 description 1
Images
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J37/00—Discharge tubes with provision for introducing objects or material to be exposed to the discharge, e.g. for the purpose of examination or processing thereof
- H01J37/32—Gas-filled discharge tubes
- H01J37/32431—Constructional details of the reactor
- H01J37/32715—Workpiece holder
- H01J37/32724—Temperature
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L21/00—Processes or apparatus adapted for the manufacture or treatment of semiconductor or solid state devices or of parts thereof
- H01L21/02—Manufacture or treatment of semiconductor devices or of parts thereof
- H01L21/02104—Forming layers
- H01L21/02107—Forming insulating materials on a substrate
- H01L21/02225—Forming insulating materials on a substrate characterised by the process for the formation of the insulating layer
- H01L21/0226—Forming insulating materials on a substrate characterised by the process for the formation of the insulating layer formation by a deposition process
- H01L21/02263—Forming insulating materials on a substrate characterised by the process for the formation of the insulating layer formation by a deposition process deposition from the gas or vapour phase
- H01L21/02271—Forming insulating materials on a substrate characterised by the process for the formation of the insulating layer formation by a deposition process deposition from the gas or vapour phase deposition by decomposition or reaction of gaseous or vapour phase compounds, i.e. chemical vapour deposition
- H01L21/0228—Forming insulating materials on a substrate characterised by the process for the formation of the insulating layer formation by a deposition process deposition from the gas or vapour phase deposition by decomposition or reaction of gaseous or vapour phase compounds, i.e. chemical vapour deposition deposition by cyclic CVD, e.g. ALD, ALE, pulsed CVD
-
- 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
- C23C16/45563—Gas nozzles
- C23C16/45568—Porous nozzles
-
- 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
- C23C16/301—AIII BV compounds, where A is Al, Ga, In or Tl and B is N, P, As, Sb or Bi
- C23C16/303—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
- C23C16/34—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
- C23C16/34—Nitrides
- C23C16/345—Silicon nitride
-
- 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
-
- 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
- C23C16/45536—Use of plasma, radiation or electromagnetic fields
-
- 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
- C23C16/45536—Use of plasma, radiation or electromagnetic fields
- C23C16/4554—Plasma being used non-continuously in between ALD reactions
-
- 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
- C23C16/45523—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
- C23C16/45546—Atomic layer deposition [ALD] characterized by the apparatus specially adapted for a substrate stack in the ALD reactor
-
- 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]
- C23C16/45553—Atomic layer deposition [ALD] characterized by the use of precursors specially adapted for ALD
-
- 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
-
- 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
- C23C16/54—Apparatus specially adapted for continuous coating
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J37/00—Discharge tubes with provision for introducing objects or material to be exposed to the discharge, e.g. for the purpose of examination or processing thereof
- H01J37/32—Gas-filled discharge tubes
- H01J37/32431—Constructional details of the reactor
- H01J37/3244—Gas supply means
- H01J37/32449—Gas control, e.g. control of the gas flow
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J37/00—Discharge tubes with provision for introducing objects or material to be exposed to the discharge, e.g. for the purpose of examination or processing thereof
- H01J37/32—Gas-filled discharge tubes
- H01J37/32431—Constructional details of the reactor
- H01J37/32798—Further details of plasma apparatus not provided for in groups H01J37/3244 - H01J37/32788; special provisions for cleaning or maintenance of the apparatus
- H01J37/32816—Pressure
-
- 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
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L21/00—Processes or apparatus adapted for the manufacture or treatment of semiconductor or solid state devices or of parts thereof
- H01L21/02—Manufacture or treatment of semiconductor devices or of parts thereof
- H01L21/02104—Forming layers
- H01L21/02107—Forming insulating materials on a substrate
- H01L21/02109—Forming insulating materials on a substrate characterised by the type of layer, e.g. type of material, porous/non-porous, pre-cursors, mixtures or laminates
- H01L21/02112—Forming insulating materials on a substrate characterised by the type of layer, e.g. type of material, porous/non-porous, pre-cursors, mixtures or laminates characterised by the material of the layer
- H01L21/02123—Forming insulating materials on a substrate characterised by the type of layer, e.g. type of material, porous/non-porous, pre-cursors, mixtures or laminates characterised by the material of the layer the material containing silicon
- H01L21/0217—Forming insulating materials on a substrate characterised by the type of layer, e.g. type of material, porous/non-porous, pre-cursors, mixtures or laminates characterised by the material of the layer the material containing silicon the material being a silicon nitride not containing oxygen, e.g. SixNy or SixByNz
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L21/00—Processes or apparatus adapted for the manufacture or treatment of semiconductor or solid state devices or of parts thereof
- H01L21/02—Manufacture or treatment of semiconductor devices or of parts thereof
- H01L21/02104—Forming layers
- H01L21/02107—Forming insulating materials on a substrate
- H01L21/02109—Forming insulating materials on a substrate characterised by the type of layer, e.g. type of material, porous/non-porous, pre-cursors, mixtures or laminates
- H01L21/02205—Forming insulating materials on a substrate characterised by the type of layer, e.g. type of material, porous/non-porous, pre-cursors, mixtures or laminates the layer being characterised by the precursor material for deposition
- H01L21/02208—Forming insulating materials on a substrate characterised by the type of layer, e.g. type of material, porous/non-porous, pre-cursors, mixtures or laminates the layer being characterised by the precursor material for deposition the precursor containing a compound comprising Si
- H01L21/02211—Forming insulating materials on a substrate characterised by the type of layer, e.g. type of material, porous/non-porous, pre-cursors, mixtures or laminates the layer being characterised by the precursor material for deposition the precursor containing a compound comprising Si the compound being a silane, e.g. disilane, methylsilane or chlorosilane
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L21/00—Processes or apparatus adapted for the manufacture or treatment of semiconductor or solid state devices or of parts thereof
- H01L21/02—Manufacture or treatment of semiconductor devices or of parts thereof
- H01L21/02104—Forming layers
- H01L21/02107—Forming insulating materials on a substrate
- H01L21/02225—Forming insulating materials on a substrate characterised by the process for the formation of the insulating layer
- H01L21/0226—Forming insulating materials on a substrate characterised by the process for the formation of the insulating layer formation by a deposition process
- H01L21/02263—Forming insulating materials on a substrate characterised by the process for the formation of the insulating layer formation by a deposition process deposition from the gas or vapour phase
- H01L21/02271—Forming insulating materials on a substrate characterised by the process for the formation of the insulating layer formation by a deposition process deposition from the gas or vapour phase deposition by decomposition or reaction of gaseous or vapour phase compounds, i.e. chemical vapour deposition
- H01L21/02274—Forming insulating materials on a substrate characterised by the process for the formation of the insulating layer formation by a deposition process deposition from the gas or vapour phase deposition by decomposition or reaction of gaseous or vapour phase compounds, i.e. chemical vapour deposition in the presence of a plasma [PECVD]
-
- 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
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J2237/00—Discharge tubes exposing object to beam, e.g. for analysis treatment, etching, imaging
- H01J2237/32—Processing objects by plasma generation
- H01J2237/33—Processing objects by plasma generation characterised by the type of processing
- H01J2237/332—Coating
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Metallurgy (AREA)
- Mechanical Engineering (AREA)
- Materials Engineering (AREA)
- Condensed Matter Physics & Semiconductors (AREA)
- Power Engineering (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Computer Hardware Design (AREA)
- Manufacturing & Machinery (AREA)
- General Physics & Mathematics (AREA)
- Plasma & Fusion (AREA)
- Analytical Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Electromagnetism (AREA)
- Chemical Vapour Deposition (AREA)
- Formation Of Insulating Films (AREA)
Description
(a)処理室内の第1温度に加熱された基板に対して所定元素およびハロゲン元素を含有する原料ガスを供給して第1層を形成する工程と、
(b)前記処理室内の前記基板に対して水素を含有し窒素を非含有とするプラズマ励起された第1改質ガスを供給し前記第1層を改質させて第2層を形成する工程と、
(c)前記処理室内の前記基板に対して窒素および水素を含有するプラズマ励起された第2改質ガスを供給し前記第2層を改質させて第3層を形成する工程と、
を含むサイクルを所定回数行うことにより、前記基板上に、前記所定元素および窒素を含有する膜を形成する成膜工程を有し、
(b)における前記第1改質ガスの供給時間THを、(c)における前記第2改質ガスの供給時間TNよりも長くする技術が提供される。
以下、本開示の一態様について図1~図4を参照しながら説明する。
図1に示すように、処理炉202は加熱機構(温度調整部)としてのヒータ207を有する。ヒータ207は円筒形状であり、保持板に支持されることにより垂直に据え付けられている。ヒータ207は、ガスを熱で活性化(励起)させる活性化機構(励起部)としても機能する。
上述の基板処理装置を用い、半導体装置の製造工程の一工程として、基板としてのウエハ200上にシリコン窒化膜(SiN膜)を形成するシーケンス例について、図4を用いて説明する。ウエハ200はSiウエハである。以下の説明において、基板処理装置を構成する各部の動作はコントローラ121により制御される。
処理室201内の第1温度に加熱されたウエハ200に対して原料ガスとしてDCSガスを供給して第1層を形成するステップAと、
処理室201内のウエハ200に対してプラズマ励起された第1改質ガスとしてH2 *ガスを供給し第1層を改質(収縮)させて第2層を形成するステップBと、
処理室201内のウエハ200に対してプラズマ励起された第2改質ガスとしてNH3 *ガスを供給し第2層を改質(窒化)させて第3層を形成するステップCと、
を含むサイクルを所定回数(n回)行うことにより、ウエハ200上に、SiおよびNを含有する膜として、SiN膜を形成する成膜ステップを有し、
ステップBにおけるH2 *ガスの供給時間THを、ステップCにおけるNH3 *ガスの供給時間TNよりも長くする。
複数枚のウエハ200がボート217に装填(ウエハチャージ)されると、図1に示すように、複数枚のウエハ200を支持したボート217は、ボートエレベータ115によって持ち上げられて処理室201内へ搬入(ボートロード)される。この状態で、シールキャップ219は、Oリング220bを介してマニホールド209の下端をシールした状態となる。
処理室201内、すなわち、ウエハ200が存在する空間が所望の圧力(真空度)となるように、真空ポンプ246によって処理室201内が真空排気(減圧排気)される。この際、処理室201内の圧力は圧力センサ245で測定され、この測定された圧力情報に基づきAPCバルブ244がフィードバック制御される(圧力調整)。また、処理室201内のウエハ200が所望の処理温度となるように、ヒータ207によって加熱される。この際、処理室201内が所望の温度分布となるように、温度センサ263が検出した温度情報に基づきヒータ207への通電具合がフィードバック制御される(温度調整)。また、回転機構267によるウエハ200の回転を開始する。真空ポンプ246の稼働、ウエハ200の加熱および回転は、いずれも、少なくともウエハ200に対する処理が終了するまでの間は継続して行われる。
その後、次の3つのステップ、すなわち、ステップA~Cを順次実施する。
このステップでは、処理室201内のウエハ200に対してDCSガスを供給する。
DCSガス供給流量:1~2000sccm、好ましくは10~1000sccm
N2ガス供給流量(ガス供給管毎):0~20000sccm、好ましくは1000~10000sccm
各ガス供給時間:1~120秒、好ましくは1~60秒
処理温度(第1温度):450~700℃、好ましくは450~550℃
処理圧力:1~2666Pa、好ましくは67~1333Pa
が例示される。
ステップAが終了した後、処理室201内のウエハ200、すなわち、ウエハ200上に形成された第1層に対して、プラズマ励起させたH2ガスを供給する。
H2ガス供給流量:100~10000sccm、好ましくは1000~10000sccm
高周波電力RH:50~1000W
H2ガス供給時間TH:60~240秒、好ましくは20~120秒
処理圧力:1~100Pa、好ましくは1~50Pa
が例示される。他の処理条件は、ステップAにおける処理条件と同様とする。なお、H2ガス供給時間THは、後述するステップCにおけるNH3ガス供給時間TNよりも長い時間とする。
ステップBが終了した後、処理室201内のウエハ200、すなわち、ウエハ200上に形成された第2層に対して、プラズマ励起させたNH3ガスを供給する。
NH3ガス供給流量:100~10000sccm
高周波電力RN:50~1000W
NH3ガス供給時間TN:1~120秒、好ましくは1~60秒
処理圧力:1~200Pa、好ましくは1~100Pa
が例示される。他の処理条件は、ステップAにおける処理条件と同様とする。ステップCにおけるNH3ガス供給時間TNは、上述のステップBにおけるH2ガス供給時間THよりも短い時間とする。
上述したステップA~Cを非同時に、すなわち、同期させることなく交互に行うサイクルを所定回数(n回、nは1以上の整数)行うことにより、ウエハ200上に、所定組成および所定膜厚のSiN膜を形成することができる。上述のサイクルは複数回繰り返すのが好ましい。すなわち、上述のサイクルを1回行うことで形成されるSiN層の厚さを所望の膜厚よりも小さくし、SiN層を積層することで形成されるSiN膜の膜厚が所望の膜厚になるまで、上述のサイクルを複数回繰り返すのが好ましい。
成膜ステップが終了した後、ガス供給管232d,232eのそれぞれからパージガスとしてのN2ガスを処理室201内へ供給し、排気管231より排気する。これにより、処理室201内がパージされ、処理室201内に残留するガスや反応副生成物が処理室201内から除去される(アフターパージ)。その後、処理室201内の雰囲気が不活性ガスに置換され(不活性ガス置換)、処理室201内の圧力が常圧に復帰される(大気圧復帰)。これらのステップを行う過程で、ウエハ200の温度は、上述の第1温度(成膜温度)よりも低い第2温度へと低下する。第2温度としては、例えば、常温~200℃の範囲内の所定の温度が例示される。本明細書では、ウエハ200の温度を第1温度よりも低い第2温度に低下させるステップを、降温ステップとも称する。
ボートエレベータ115によりシールキャップ219が下降され、マニホールド209の下端が開口される。そして、処理済のウエハ200が、ボート217に支持された状態でマニホールド209の下端から反応管203の外部に搬出(ボートアンロード)される。処理済のウエハ200は、反応管203の外部に搬出された後、ボート217より取り出される(ウエハディスチャージ)。
上述の態様によれば、以下に示す1つまたは複数の効果が得られる。
が加えられる。一方、ウエハ200はこの反りを生じさせる力に対して反発するため、SiN膜には、それに対応する引っ張り応力が生じることとなる。
また、温度低下に伴うSiN膜の収縮量は、一般的に、SiN膜に含まれる不純物の濃度が低く、高品質な膜であるほど減少していく。そのため、ステップCにおけるNH3 *ガスの供給時間TNを大きくして、SiN膜に含まれる不純物の濃度を低くするほど、降温ステップ後のSiN膜の収縮量は減少し、ウエハ200の収縮量の差に起因してSiN膜に生じる圧縮応力は増大する傾向にある。
本態様は、以下の変形例のように変更することができる。また、これらの変形例は任意に組み合わせることができる。
比率TH/TNの調整に加えて、或いは、比率TH/TNの調整に代えて、高周波電力RNに対する高周波電力RHの比率RH/RNを調整する(増加させる)ことによっても、成膜ステップ、降温ステップを順に実施した際におけるウエハ200上に形成されたSiN膜に生じる応力を低減することが可能となる。
比率TH/TNの調整に加えて、或いは、比率TH/TNの調整に代えて、成膜ステップのステップBにおける処理室201内の圧力を調整する(減少させる)ことによっても、成膜ステップ、降温ステップを順に実施した際におけるウエハ200上に形成されたSiN膜に生じる応力を低減することが可能となる。
上述したように、成膜ステップは、複数枚のウエハ200を処理室201内に水平姿勢で多段に配置した状態で実施される。ここで、比率TH/TNの調整に加えて、或いは、比率TH/TNの調整に代えて、段に配置されるウエハ200の間隔(ピッチ)を調整することによっても、成膜ステップ、降温ステップを順に実施した際におけるウエハ200上に形成されたSiN膜に生じる応力を低減することが可能となる。
以上、本開示の態様について具体的に説明した。しかしながら、本開示は上述の態様に限定されるものではなく、その要旨を逸脱しない範囲で種々変更可能である。
(HfCl4→H2 *→NH3 *)×n ⇒ HfN
(TaCl5→H2 *→NH3 *)×n ⇒ TaN
(TMA→H2 *→NH3 *)×n ⇒ AlN
Claims (12)
- (a)処理室内の第1温度に加熱された基板に対して所定元素およびハロゲン元素を含有する原料ガスを供給して第1層を形成する工程と、
(b)前記処理室内の前記基板に対して水素を含有し窒素を非含有とするプラズマ励起された第1改質ガスを供給し前記第1層を改質させて第2層を形成する工程と、
(c)前記処理室内の前記基板に対して窒素および水素を含有するプラズマ励起された第2改質ガスを供給し前記第2層を改質させて第3層を形成する工程と、
を含むサイクルを所定回数行うことにより、前記基板上に、前記所定元素および窒素を含有する膜を形成する成膜工程と、
前記基板の温度を前記第1温度よりも低い第2温度とする降温工程と、
を有し、
前記成膜工程を実施してから前記降温工程を実施した後の状態において前記膜に生じている応力Sの大きさを、(b)における前記第1改質ガスの供給時間TH を70秒以上且つ(c)における前記第2改質ガスの供給時間T N よりも長くするとともに、前記T H とT N の比率TH/TN を大きくする方向に調整することにより、低減させるように制御する半導体装置の製造方法。 - 前記応力Sの大きさが、(b)を含まず(a)および(c)を含むサイクルを前記所定回数行うことにより前記基板上に膜Xを形成してから前記降温工程を実施した後の状態において前記膜Xに生じている応力Sxの大きさよりも小さくなるように、前記比率TH/TNを調整する請求項1に記載の半導体装置の製造方法。
- 前記比率TH/TNの大きさを、(b)の実施によって前記膜に生じる収縮量が、(c)の実施によって、前記降温工程の実施後に前記膜に生じる収縮量の低下の量よりも大きくなるような大きさとする請求項2に記載の半導体装置の製造方法。
- 前記比率TH/TNの大きさを、その値を大きくするにつれて前記応力Sの大きさが小さくなるような数値範囲内から選択する請求項2に記載の半導体装置の製造方法。
- 前記比率TH/TNの大きさを2.5超の大きさとする請求項2に記載の半導体装置の製造方法。
- (a)では、前記第1層を前記所定元素および前記ハロゲン元素を含む層とし、
(b)では、前記第1層から前記ハロゲン元素を脱離させて前記第2層を形成し、
(c)では、前記第2層を窒化させて前記第3層を形成する請求項1に記載の半導体装置の製造方法。 - (b)では、前記第1改質ガスに対して高周波電力RHを印可することにより前記第1改質ガスをプラズマ励起し、
(c)では、前記第2改質ガスに対して高周波電力RNを印可することにより前記第2改質ガスをプラズマ励起し、
前記応力Sの大きさを、前記高周波電力RNに対する前記高周波電力RHの比率RH/RNを調整することにより更に制御する請求項1に記載の半導体装置の製造方法。 - 前記比率RH/RNを0.5超の大きさとする請求項7に記載の半導体装置の製造方法。
- 前記応力Sの大きさを、(b)における前記処理室内の圧力を調整することにより更に制御する請求項1に記載の半導体装置の製造方法。
- (a)処理室内の第1温度に加熱された基板に対して所定元素およびハロゲン元素を含有する原料ガスを供給して第1層を形成する工程と、
(b)前記処理室内の前記基板に対して水素を含有し窒素を非含有とするプラズマ励起された第1改質ガスを供給し前記第1層を改質させて第2層を形成する工程と、
(c)前記処理室内の前記基板に対して窒素および水素を含有するプラズマ励起された第2改質ガスを供給し前記第2層を改質させて第3層を形成する工程と、
を含むサイクルを所定回数行うことにより、前記基板上に、前記所定元素および窒素を含有する膜を形成する成膜工程と、
前記基板の温度を前記第1温度よりも低い第2温度とする降温工程と、
を有し、
前記成膜工程を実施してから前記降温工程を実施した後の状態において前記膜に生じている応力Sの大きさを、(b)における前記第1改質ガスの供給時間TH を70秒以上且つ(c)における前記第2改質ガスの供給時間T N よりも長くするとともに、前記T H とT N の比率TH/TNを大きくする方向に調整することにより、低減させるように制御する基板処理方法。 - 基板処理装置の処理室内において、
(a)第1温度に加熱された基板に対して所定元素およびハロゲン元素を含有する原料ガスを供給して第1層を形成する手順と、
(b)前記基板に対して水素を含有し窒素を非含有とするプラズマ励起された第1改質ガスを供給し前記第1層を改質させて第2層を形成する手順と、
(c)前記基板に対して窒素および水素を含有するプラズマ励起された第2改質ガスを供給し前記第2層を改質させて第3層を形成する手順と、
を含むサイクルを所定回数行うことにより、前記基板上に、前記所定元素および窒素を含有する膜を形成する手順Aと、
前記基板の温度を前記第1温度よりも低い第2温度とする手順Bと、
をコンピュータによって前記基板処理装置に実行させ、
前記手順Aを実施してから前記手順Bを実施した後の状態において前記膜に生じている応力Sの大きさを、(b)における前記第1改質ガスの供給時間TH を70秒以上且つ(c)における前記第2改質ガスの供給時間T N よりも長くするとともに、前記T H とT N の比率TH/TNを大きくする方向に調整することにより、低減させるように制御する前記コンピュータを制御するプログラム。 - 基板が処理される処理室と、
前記処理室内の基板を加熱するヒータと、
前記処理室内の基板に対して所定元素およびハロゲン元素を含有する原料ガスを供給する原料ガス供給系と、
前記処理室内の基板に対して水素を含有し窒素を非含有とする第1改質ガスを供給する第1改質ガス供給系と、
前記処理室内の基板に対して窒素および水素を含有する第2改質ガスを供給する第2改質ガス供給系と、
前記第1改質ガスおよび前記第2改質ガスをそれぞれプラズマ状態に活性化させるプラズマ励起部と、
前記処理室内において、(a)第1温度に加熱された基板に対して原料ガスを供給して第1層を形成する処理と、(b)前記基板に対してプラズマ励起された前記第1改質ガスを供給し前記第1層を改質させて第2層を形成する処理と、(c)前記基板に対してプラズマ励起された前記第2改質ガスを供給し前記第2層を改質させて第3層を形成する処理と、を含むサイクルを所定回数行うことにより、前記基板上に、前記所定元素および窒素を含有する膜を形成する処理Aと、前記基板の温度を前記第1温度よりも低い第2温度とする処理Bと、を行わせるように、前記ヒータ、前記原料ガス供給系、前記第1改質ガス供給系、前記第2改質ガス供給系、および前記プラズマ励起部を制御することが可能なよう構成される制御部と、
を有し、
前記処理Aを実施してから前記処理Bを実施した後の状態において前記膜に生じている応力Sの大きさを、(b)における前記第1改質ガスの供給時間TH を70秒以上且つ(c)における前記第2改質ガスの供給時間T N よりも長くするとともに、前記T H とT N の比率TH/TNを大きくする方向に調整することにより、低減させるように制御する基板処理装置。
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2019171529 | 2019-09-20 | ||
JP2019171529 | 2019-09-20 | ||
PCT/JP2020/029951 WO2021053987A1 (ja) | 2019-09-20 | 2020-08-05 | 半導体装置の製造方法、基板処理装置、およびプログラム |
Publications (3)
Publication Number | Publication Date |
---|---|
JPWO2021053987A1 JPWO2021053987A1 (ja) | 2021-03-25 |
JPWO2021053987A5 JPWO2021053987A5 (ja) | 2022-03-14 |
JP7240517B2 true JP7240517B2 (ja) | 2023-03-15 |
Family
ID=74883459
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2021546540A Active JP7240517B2 (ja) | 2019-09-20 | 2020-08-05 | 半導体装置の製造方法、基板処理方法、プログラム、および基板処理装置 |
Country Status (6)
Country | Link |
---|---|
US (1) | US20220208544A1 (ja) |
JP (1) | JP7240517B2 (ja) |
KR (1) | KR20220044357A (ja) |
CN (1) | CN114072540B (ja) |
TW (1) | TWI742800B (ja) |
WO (1) | WO2021053987A1 (ja) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2023162072A1 (ja) * | 2022-02-24 | 2023-08-31 | 株式会社Kokusai Electric | 成膜方法、半導体装置の製造方法、成膜装置、およびプログラム |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2009177046A (ja) | 2008-01-28 | 2009-08-06 | Mitsubishi Heavy Ind Ltd | プラズマ処理方法及びプラズマ処理装置 |
JP2013093551A (ja) | 2011-10-07 | 2013-05-16 | Hitachi Kokusai Electric Inc | 半導体装置の製造方法、基板処理方法、基板処理装置およびプログラム |
JP2014011357A (ja) | 2012-06-29 | 2014-01-20 | Tokyo Electron Ltd | 成膜方法、成膜装置及び記憶媒体 |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN101032006A (zh) | 2005-02-17 | 2007-09-05 | 株式会社日立国际电气 | 半导体器件的制造方法以及衬底处理装置 |
JP4607637B2 (ja) * | 2005-03-28 | 2011-01-05 | 東京エレクトロン株式会社 | シリコン窒化膜の形成方法、シリコン窒化膜の形成装置及びプログラム |
WO2011162136A1 (en) * | 2010-06-23 | 2011-12-29 | Tokyo Electron Limited | Film formation method, semiconductor-device fabrication method, insulating film and semiconductor device |
JP6262115B2 (ja) * | 2014-02-10 | 2018-01-17 | 東京エレクトロン株式会社 | 基板処理方法及び基板処理装置 |
JP6807278B2 (ja) * | 2017-05-24 | 2021-01-06 | 東京エレクトロン株式会社 | シリコン窒化膜の成膜方法および成膜装置 |
-
2020
- 2020-08-05 KR KR1020227008388A patent/KR20220044357A/ko not_active Application Discontinuation
- 2020-08-05 WO PCT/JP2020/029951 patent/WO2021053987A1/ja active Application Filing
- 2020-08-05 JP JP2021546540A patent/JP7240517B2/ja active Active
- 2020-08-05 CN CN202080047973.4A patent/CN114072540B/zh active Active
- 2020-08-17 TW TW109127846A patent/TWI742800B/zh active
-
2022
- 2022-03-17 US US17/697,688 patent/US20220208544A1/en active Pending
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2009177046A (ja) | 2008-01-28 | 2009-08-06 | Mitsubishi Heavy Ind Ltd | プラズマ処理方法及びプラズマ処理装置 |
JP2013093551A (ja) | 2011-10-07 | 2013-05-16 | Hitachi Kokusai Electric Inc | 半導体装置の製造方法、基板処理方法、基板処理装置およびプログラム |
JP2014011357A (ja) | 2012-06-29 | 2014-01-20 | Tokyo Electron Ltd | 成膜方法、成膜装置及び記憶媒体 |
Also Published As
Publication number | Publication date |
---|---|
US20220208544A1 (en) | 2022-06-30 |
TWI742800B (zh) | 2021-10-11 |
CN114072540B (zh) | 2024-08-20 |
JPWO2021053987A1 (ja) | 2021-03-25 |
WO2021053987A1 (ja) | 2021-03-25 |
CN114072540A (zh) | 2022-02-18 |
KR20220044357A (ko) | 2022-04-07 |
TW202113131A (zh) | 2021-04-01 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US10490400B2 (en) | Method of manufacturing semiconductor device, substrate processing apparatus, and recording medium | |
JP7088990B2 (ja) | 基板処理装置、半導体装置の製造方法およびプログラム | |
JP6591046B2 (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 | |
KR102276870B1 (ko) | 반도체 장치의 제조 방법, 기판 처리 방법, 기판 처리 장치 및 프로그램 | |
JP2018087370A (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 | |
JP2018206827A (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 | |
JP7076490B2 (ja) | 基板処理方法、半導体装置の製造方法、基板処理装置、およびプログラム | |
JP7240517B2 (ja) | 半導体装置の製造方法、基板処理方法、プログラム、および基板処理装置 | |
KR20240005996A (ko) | 기판 처리 방법, 반도체 장치의 제조 방법, 기판 처리 장치, 및 프로그램 | |
JP7194216B2 (ja) | 半導体装置の製造方法、基板処理方法、プログラム及び基板処理装置 | |
JP7496884B2 (ja) | 基板処理方法、半導体装置の製造方法、基板処理装置、およびプログラム | |
WO2022201242A1 (ja) | 電極、基板処理装置、半導体装置の製造方法およびプログラム | |
WO2021181450A1 (ja) | 基板処理装置、半導体装置の製造方法及びプログラム | |
JP7431210B2 (ja) | 基板処理装置、プラズマ生成装置、半導体装置の製造方法、プラズマ生成方法及びプログラム | |
JP7198854B2 (ja) | 半導体装置の製造方法、基板処理方法、プログラム及び基板処理装置 | |
JP7199497B2 (ja) | 基板処理方法、半導体装置の製造方法、基板処理装置、およびプログラム | |
WO2023176020A1 (ja) | 基板処理方法、半導体装置の製造方法、プログラム、および基板処理装置 | |
JP7290680B2 (ja) | 基板処理装置、プラズマ生成装置、半導体装置の製造方法、及びプログラム | |
WO2023112387A1 (ja) | 成膜方法、半導体装置の製造方法、成膜装置、およびプログラム | |
WO2023162072A1 (ja) | 成膜方法、半導体装置の製造方法、成膜装置、およびプログラム | |
WO2022054855A1 (ja) | 基板処理装置、半導体装置の製造方法及びプログラム | |
JP2022118471A (ja) | 基板処理装置、電極及び半導体装置の製造方法 | |
JP2020077890A (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 |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
A521 | Request for written amendment filed |
Free format text: JAPANESE INTERMEDIATE CODE: A523 Effective date: 20211217 |
|
A621 | Written request for application examination |
Free format text: JAPANESE INTERMEDIATE CODE: A621 Effective date: 20211217 |
|
A131 | Notification of reasons for refusal |
Free format text: JAPANESE INTERMEDIATE CODE: A131 Effective date: 20220726 |
|
A521 | Request for written amendment filed |
Free format text: JAPANESE INTERMEDIATE CODE: A523 Effective date: 20220922 |
|
A02 | Decision of refusal |
Free format text: JAPANESE INTERMEDIATE CODE: A02 Effective date: 20221011 |
|
A521 | Request for written amendment filed |
Free format text: JAPANESE INTERMEDIATE CODE: A523 Effective date: 20230110 |
|
C60 | Trial request (containing other claim documents, opposition documents) |
Free format text: JAPANESE INTERMEDIATE CODE: C60 Effective date: 20230110 |
|
A911 | Transfer to examiner for re-examination before appeal (zenchi) |
Free format text: JAPANESE INTERMEDIATE CODE: A911 Effective date: 20230118 |
|
C21 | Notice of transfer of a case for reconsideration by examiners before appeal proceedings |
Free format text: JAPANESE INTERMEDIATE CODE: C21 Effective date: 20230124 |
|
TRDD | Decision of grant or rejection written | ||
A01 | Written decision to grant a patent or to grant a registration (utility model) |
Free format text: JAPANESE INTERMEDIATE CODE: A01 Effective date: 20230207 |
|
A61 | First payment of annual fees (during grant procedure) |
Free format text: JAPANESE INTERMEDIATE CODE: A61 Effective date: 20230303 |
|
R150 | Certificate of patent or registration of utility model |
Ref document number: 7240517 Country of ref document: JP Free format text: JAPANESE INTERMEDIATE CODE: R150 |