WO2005093809A1 - 単位層ポスト処理触媒化学蒸着装置及びその成膜方法 - Google Patents
単位層ポスト処理触媒化学蒸着装置及びその成膜方法 Download PDFInfo
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- WO2005093809A1 WO2005093809A1 PCT/JP2005/005566 JP2005005566W WO2005093809A1 WO 2005093809 A1 WO2005093809 A1 WO 2005093809A1 JP 2005005566 W JP2005005566 W JP 2005005566W WO 2005093809 A1 WO2005093809 A1 WO 2005093809A1
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- Prior art keywords
- gas
- unit layer
- surface treatment
- film
- thin film
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- 238000000034 method Methods 0.000 title claims abstract description 138
- 230000015572 biosynthetic process Effects 0.000 title claims abstract description 45
- 238000004050 hot filament vapor deposition Methods 0.000 title claims abstract description 34
- 239000010408 film Substances 0.000 claims abstract description 244
- 239000007789 gas Substances 0.000 claims abstract description 149
- 238000004381 surface treatment Methods 0.000 claims abstract description 100
- 239000010409 thin film Substances 0.000 claims abstract description 84
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 claims abstract description 65
- 239000000758 substrate Substances 0.000 claims abstract description 61
- 229910052581 Si3N4 Inorganic materials 0.000 claims abstract description 52
- HQVNEWCFYHHQES-UHFFFAOYSA-N silicon nitride Chemical compound N12[Si]34N5[Si]62N3[Si]51N64 HQVNEWCFYHHQES-UHFFFAOYSA-N 0.000 claims abstract description 52
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 claims abstract description 51
- 238000006243 chemical reaction Methods 0.000 claims abstract description 35
- BLRPTPMANUNPDV-UHFFFAOYSA-N Silane Chemical compound [SiH4] BLRPTPMANUNPDV-UHFFFAOYSA-N 0.000 claims abstract description 20
- 230000003197 catalytic effect Effects 0.000 claims abstract description 18
- 230000008569 process Effects 0.000 claims description 68
- 238000012805 post-processing Methods 0.000 claims description 49
- 239000003054 catalyst Substances 0.000 claims description 42
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 41
- 229910052757 nitrogen Inorganic materials 0.000 claims description 18
- 238000000151 deposition Methods 0.000 claims description 15
- 230000008021 deposition Effects 0.000 claims description 13
- 229910001873 dinitrogen Inorganic materials 0.000 claims description 12
- 229910052710 silicon Inorganic materials 0.000 claims description 11
- 239000010703 silicon Substances 0.000 claims description 11
- OAKJQQAXSVQMHS-UHFFFAOYSA-N Hydrazine Chemical compound NN OAKJQQAXSVQMHS-UHFFFAOYSA-N 0.000 claims description 7
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 claims description 7
- 238000007740 vapor deposition Methods 0.000 claims description 6
- 229910000069 nitrogen hydride Inorganic materials 0.000 claims description 5
- 150000004678 hydrides Chemical class 0.000 claims description 4
- -1 silicon halide Chemical class 0.000 claims description 4
- 229910052990 silicon hydride Inorganic materials 0.000 claims description 4
- 238000001994 activation Methods 0.000 claims 1
- 238000003475 lamination Methods 0.000 claims 1
- 229910000077 silane Inorganic materials 0.000 abstract description 14
- 239000000463 material Substances 0.000 abstract description 4
- 238000007233 catalytic pyrolysis Methods 0.000 abstract 1
- 238000010030 laminating Methods 0.000 abstract 1
- 239000010410 layer Substances 0.000 description 67
- 229910052739 hydrogen Inorganic materials 0.000 description 25
- 239000001257 hydrogen Substances 0.000 description 21
- 238000010586 diagram Methods 0.000 description 15
- 230000000694 effects Effects 0.000 description 11
- 239000002994 raw material Substances 0.000 description 11
- 239000002356 single layer Substances 0.000 description 11
- 229910021529 ammonia Inorganic materials 0.000 description 10
- 239000000203 mixture Substances 0.000 description 10
- 238000005530 etching Methods 0.000 description 8
- 238000010438 heat treatment Methods 0.000 description 6
- 238000011065 in-situ storage Methods 0.000 description 6
- 238000005033 Fourier transform infrared spectroscopy Methods 0.000 description 5
- 238000005229 chemical vapour deposition Methods 0.000 description 5
- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 description 5
- 235000011470 Adenanthera pavonina Nutrition 0.000 description 4
- 240000001606 Adenanthera pavonina Species 0.000 description 4
- KRHYYFGTRYWZRS-UHFFFAOYSA-N Fluorane Chemical compound F KRHYYFGTRYWZRS-UHFFFAOYSA-N 0.000 description 4
- 239000002131 composite material Substances 0.000 description 4
- 230000007423 decrease Effects 0.000 description 4
- 230000006872 improvement Effects 0.000 description 4
- 238000005259 measurement Methods 0.000 description 4
- 238000012545 processing Methods 0.000 description 4
- ABTOQLMXBSRXSM-UHFFFAOYSA-N silicon tetrafluoride Chemical compound F[Si](F)(F)F ABTOQLMXBSRXSM-UHFFFAOYSA-N 0.000 description 4
- 238000002230 thermal chemical vapour deposition Methods 0.000 description 4
- VXEGSRKPIUDPQT-UHFFFAOYSA-N 4-[4-(4-methoxyphenyl)piperazin-1-yl]aniline Chemical compound C1=CC(OC)=CC=C1N1CCN(C=2C=CC(N)=CC=2)CC1 VXEGSRKPIUDPQT-UHFFFAOYSA-N 0.000 description 3
- 239000000654 additive Substances 0.000 description 3
- 230000000996 additive effect Effects 0.000 description 3
- 238000007796 conventional method Methods 0.000 description 3
- 238000000354 decomposition reaction Methods 0.000 description 3
- 238000000605 extraction Methods 0.000 description 3
- 239000012071 phase Substances 0.000 description 3
- 238000005268 plasma chemical vapour deposition Methods 0.000 description 3
- 239000005049 silicon tetrachloride Substances 0.000 description 3
- 230000001629 suppression Effects 0.000 description 3
- 229910052721 tungsten Inorganic materials 0.000 description 3
- 239000010937 tungsten Substances 0.000 description 3
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 description 2
- 239000003463 adsorbent Substances 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 230000002860 competitive effect Effects 0.000 description 2
- 230000007797 corrosion Effects 0.000 description 2
- 238000005260 corrosion Methods 0.000 description 2
- MROCJMGDEKINLD-UHFFFAOYSA-N dichlorosilane Chemical compound Cl[SiH2]Cl MROCJMGDEKINLD-UHFFFAOYSA-N 0.000 description 2
- 238000009826 distribution Methods 0.000 description 2
- 229910052736 halogen Inorganic materials 0.000 description 2
- 150000002367 halogens Chemical class 0.000 description 2
- 230000005764 inhibitory process Effects 0.000 description 2
- 238000010926 purge Methods 0.000 description 2
- 239000004065 semiconductor Substances 0.000 description 2
- 241000894007 species Species 0.000 description 2
- ZOKXTWBITQBERF-UHFFFAOYSA-N Molybdenum Chemical compound [Mo] ZOKXTWBITQBERF-UHFFFAOYSA-N 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- 229910021417 amorphous silicon Inorganic materials 0.000 description 1
- 229910052786 argon Inorganic materials 0.000 description 1
- 239000003990 capacitor Substances 0.000 description 1
- 239000012159 carrier gas Substances 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 238000013329 compounding Methods 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 238000012937 correction Methods 0.000 description 1
- 125000004122 cyclic group Chemical group 0.000 description 1
- 230000009849 deactivation Effects 0.000 description 1
- 238000005137 deposition process Methods 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- PUUOOWSPWTVMDS-UHFFFAOYSA-N difluorosilane Chemical compound F[SiH2]F PUUOOWSPWTVMDS-UHFFFAOYSA-N 0.000 description 1
- PZPGRFITIJYNEJ-UHFFFAOYSA-N disilane Chemical compound [SiH3][SiH3] PZPGRFITIJYNEJ-UHFFFAOYSA-N 0.000 description 1
- 230000005684 electric field Effects 0.000 description 1
- 230000006870 function Effects 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
- 125000004435 hydrogen atom Chemical group [H]* 0.000 description 1
- 229910052738 indium Inorganic materials 0.000 description 1
- APFVFJFRJDLVQX-UHFFFAOYSA-N indium atom Chemical compound [In] APFVFJFRJDLVQX-UHFFFAOYSA-N 0.000 description 1
- 229910052741 iridium Inorganic materials 0.000 description 1
- GKOZUEZYRPOHIO-UHFFFAOYSA-N iridium atom Chemical compound [Ir] GKOZUEZYRPOHIO-UHFFFAOYSA-N 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000004973 liquid crystal related substance Substances 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000003446 memory effect Effects 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 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
- 229910052758 niobium Inorganic materials 0.000 description 1
- 239000010955 niobium Substances 0.000 description 1
- GUCVJGMIXFAOAE-UHFFFAOYSA-N niobium atom Chemical compound [Nb] GUCVJGMIXFAOAE-UHFFFAOYSA-N 0.000 description 1
- 238000005121 nitriding Methods 0.000 description 1
- QJGQUHMNIGDVPM-UHFFFAOYSA-N nitrogen group Chemical group [N] QJGQUHMNIGDVPM-UHFFFAOYSA-N 0.000 description 1
- 230000006911 nucleation Effects 0.000 description 1
- 238000010899 nucleation Methods 0.000 description 1
- 238000013386 optimize process Methods 0.000 description 1
- 230000001590 oxidative effect Effects 0.000 description 1
- 238000000623 plasma-assisted chemical vapour deposition Methods 0.000 description 1
- 238000002203 pretreatment Methods 0.000 description 1
- 238000004080 punching Methods 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 229910052702 rhenium Inorganic materials 0.000 description 1
- WUAPFZMCVAUBPE-UHFFFAOYSA-N rhenium atom Chemical compound [Re] WUAPFZMCVAUBPE-UHFFFAOYSA-N 0.000 description 1
- 229920006395 saturated elastomer Polymers 0.000 description 1
- FDNAPBUWERUEDA-UHFFFAOYSA-N silicon tetrachloride Chemical compound Cl[Si](Cl)(Cl)Cl FDNAPBUWERUEDA-UHFFFAOYSA-N 0.000 description 1
- 238000001179 sorption measurement Methods 0.000 description 1
- 230000001502 supplementing effect Effects 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
- 230000007704 transition 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
- VEDJZFSRVVQBIL-UHFFFAOYSA-N trisilane Chemical compound [SiH3][SiH2][SiH3] VEDJZFSRVVQBIL-UHFFFAOYSA-N 0.000 description 1
- 239000012808 vapor phase Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
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- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C16/00—Chemical coating by decomposition of gaseous compounds, without leaving reaction products of surface material in the coating, i.e. chemical vapour deposition [CVD] processes
- C23C16/22—Chemical coating by decomposition of gaseous compounds, without leaving reaction products of surface material in the coating, i.e. chemical vapour deposition [CVD] processes characterised by the deposition of inorganic material, other than metallic material
- C23C16/30—Deposition of compounds, mixtures or solid solutions, e.g. borides, carbides, nitrides
- C23C16/34—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
-
- 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
-
- 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
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L21/00—Processes or apparatus adapted for the manufacture or treatment of semiconductor or solid state devices or of parts thereof
- H01L21/02—Manufacture or treatment of semiconductor devices or of parts thereof
- H01L21/02104—Forming layers
- H01L21/02107—Forming insulating materials on a substrate
- H01L21/02109—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
- H01L21/022—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 a laminate, i.e. composed of sublayers, e.g. stacks of alternating high-k metal oxides
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L21/00—Processes or apparatus adapted for the manufacture or treatment of semiconductor or solid state devices or of parts thereof
- H01L21/02—Manufacture or treatment of semiconductor devices or of parts thereof
- H01L21/02104—Forming layers
- H01L21/02107—Forming insulating materials on a substrate
- H01L21/02225—Forming insulating materials on a substrate characterised by the process for the formation of the insulating layer
- H01L21/0226—Forming insulating materials on a substrate characterised by the process for the formation of the insulating layer formation by a deposition process
- H01L21/02263—Forming insulating materials on a substrate characterised by the process for the formation of the insulating layer formation by a deposition process deposition from the gas or vapour phase
- H01L21/02271—Forming insulating materials on a substrate characterised by the process for the formation of the insulating layer formation by a deposition process deposition from the gas or vapour phase deposition by decomposition or reaction of gaseous or vapour phase compounds, i.e. chemical vapour deposition
- H01L21/02277—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 the reactions being activated by other means than plasma or thermal, e.g. photo-CVD
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L21/00—Processes or apparatus adapted for the manufacture or treatment of semiconductor or solid state devices or of parts thereof
- H01L21/02—Manufacture or treatment of semiconductor devices or of parts thereof
- H01L21/02104—Forming layers
- H01L21/02107—Forming insulating materials on a substrate
- H01L21/02225—Forming insulating materials on a substrate characterised by the process for the formation of the insulating layer
- H01L21/0226—Forming insulating materials on a substrate characterised by the process for the formation of the insulating layer formation by a deposition process
- H01L21/02263—Forming insulating materials on a substrate characterised by the process for the formation of the insulating layer formation by a deposition process deposition from the gas or vapour phase
- H01L21/02271—Forming insulating materials on a substrate characterised by the process for the formation of the insulating layer formation by a deposition process deposition from the gas or vapour phase deposition by decomposition or reaction of gaseous or vapour phase compounds, i.e. chemical vapour deposition
- H01L21/0228—Forming insulating materials on a substrate characterised by the process for the formation of the insulating layer formation by a deposition process deposition from the gas or vapour phase deposition by decomposition or reaction of gaseous or vapour phase compounds, i.e. chemical vapour deposition deposition by cyclic CVD, e.g. ALD, ALE, pulsed CVD
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- 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
- H01L21/02296—Forming insulating materials on a substrate characterised by the treatment performed before or after the formation of the layer
- H01L21/02318—Forming insulating materials on a substrate characterised by the treatment performed before or after the formation of the layer post-treatment
- H01L21/02337—Forming insulating materials on a substrate characterised by the treatment performed before or after the formation of the layer post-treatment treatment by exposure to a gas or vapour
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L21/00—Processes or apparatus adapted for the manufacture or treatment of semiconductor or solid state devices or of parts thereof
- H01L21/02—Manufacture or treatment of semiconductor devices or of parts thereof
- H01L21/04—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
- H01L21/314—Inorganic layers
- H01L21/318—Inorganic layers composed of nitrides
- H01L21/3185—Inorganic layers composed of nitrides of siliconnitrides
Definitions
- the present invention relates to a unit layer post-processing catalytic chemical vapor deposition apparatus using a catalytic chemical vapor deposition method in which a thin film is formed by performing a surface treatment after forming a film for each unit layer, and a film forming method thereof.
- Various semiconductor devices, liquid crystal displays (LCDs), and the like are manufactured by forming a predetermined thin film on a substrate.
- a CVD method such as a CVD method, a chemical vapor deposition method, or the like
- the law is also used !!).
- the catalytic CVD method can form a film at a lower temperature than the thermal CVD method, and has no problems such as damage to a substrate due to generation of plasma unlike the plasma CVD method. It is attracting attention as a film formation method for next generation semiconductor devices and display devices (such as LCDs).
- a mixed gas containing silane gas (SiH) and ammonia gas (NH) is used as a source gas in a reaction vessel.
- Patent Document 1 Japanese Patent Application Laid-Open No. 2002-367991
- a silicon nitride film formed by a conventional catalytic CVD method as described in Patent Document 1 described above is used.
- the oxide film has insufficient step coverage (step coverage) to improve the in-plane uniformity of the film thickness, and does not have good current-voltage (IV) withstand voltage characteristics, so there is room for improvement.
- the present invention can improve the in-plane uniformity of a silicon nitride film or the like, improve the step coverage, and improve the film quality such as the IV withstand voltage characteristics, and can improve the film quality for each unit layer. It is an object of the present invention to provide a unit layer post-processing catalyst vapor deposition apparatus capable of forming a thin film by performing surface treatment after film formation, and a method of forming the same.
- the invention according to claim 1 of the unit layer post-treatment catalytic chemical vapor deposition apparatus of the present invention is characterized in that a catalytic action of an exothermic catalyst body that is resistance-heated in a reaction vessel capable of evacuating.
- the surface treatment may be a surface treatment with a thin-film component-containing gas other than silicon containing active species and a surface treatment with hydrogen gas containing active species. , Or both.
- the invention according to claim 3 is characterized in that the exothermic catalyst is irradiated with hydrogen gas to regenerate the catalytic ability.
- the invention according to claim 4 is characterized in that the surface treatment is a shift of or a combination of a pull-out process of an excessive thin film component and a direct addition process of the thin film component.
- the invention according to claim 5 is characterized in that one of a nitrogen gas and a rare gas is used instead of the hydrogen gas.
- the invention according to claim 6 is characterized in that the thin-film component-containing gas is any one of silicon hydride and silicon halide, and one or both of nitrogen and nitrogen hydride.
- the invention according to claim 7 is characterized in that the gas containing the thin film component containing the active species in the surface treatment is nitrogen and / or hydride of nitrogen.
- the invention according to claim 8 of the unit layer post-processing film forming method of the present invention forms a thin film on a substrate by utilizing the catalytic action of an exothermic catalyst that is resistance-heated in a vacuum-evacuable reaction vessel.
- a catalytic chemical vapor deposition method wherein a flow rate of a thin film component-containing gas and a hydrogen gas is introduced in a pulsed manner and brought into contact with an exothermic catalyst to generate active species;
- a process of performing a surface treatment irrespective of whether it is before or after another surface treatment process of performing a surface treatment. Is repeated to form a laminated thin film. To have.
- the invention according to claim 9 is characterized in that, in addition to the above-described configuration, the process is repeated a plurality of times during one cycle to determine whether one of the surface treatment steps and the other surface treatment steps are! / ⁇ . It is a thing.
- one or both of the one surface treatment step and the other surface treatment step and the film formation step of forming a thin film for each unit layer on the substrate are continuously processed. It is characterized by being performed.
- An eleventh aspect of the present invention is characterized in that a residual gas is evacuated after a shift in a film forming process, one surface treatment process, and another surface treatment process.
- the invention according to claim 12 is characterized in that one surface treatment step is a step of extracting excess thin film components and another surface treatment step is a step of adding thin film components. is there.
- the invention described in claim 13 is characterized in that it is a step of performing a surface treatment with a thin-film component-containing gas other than silicon containing active species in the final process force of one cycle.
- the invention according to claim 14 is characterized in that one of a nitrogen gas and a rare gas is used instead of the hydrogen gas.
- the invention according to claim 15 is characterized in that the thin film component-containing gas is any one of silicon hydride and silicon halide, and one of or both nitrogen and nitrogen hydride. .
- the invention according to claim 16 is characterized in that the thin film component-containing gas containing active species in the surface treatment is nitrogen gas and / or hydride of nitrogen.
- the thin film component-containing gas is a monosilane gas and an ammonia gas, the film forming process forms a silicon nitride film for each unit layer on the substrate, and the other surface treatment process forms the active species. It is characterized in that the surface treatment of the silicon nitride film for each unit layer is carried out with ammonia gas containing.
- the invention according to claim 18 is characterized in that the final step of one cycle is a step of performing a surface treatment with ammonia gas which is a thin-film component-containing gas containing active species.
- the unit layer post-processing catalyst vapor deposition apparatus of the present invention can switch the gas introduction instantaneously, so that film formation can be performed for each unit layer, and surface treatment can be performed for each unit layer formed. It is possible to improve the uniformity of the in-plane film thickness, the step coverage, and the film quality.
- the unit layer post-processing film forming method of the present invention since the surface treatment is performed after forming the film for each unit layer, a laminated thin film having improved in-plane uniformity of film thickness, improved step coverage, and improved film quality characteristics. Can be formed.
- FIG. 1 is a schematic configuration diagram showing a unit layer post-processing catalytic chemical vapor deposition apparatus according to an embodiment of the present invention.
- FIG. 2 is a diagram showing an example of a gas supply timing chart of the unit layer post-processing film forming method according to the present embodiment.
- FIG. 3 is a view showing a gas supply timing chart.
- FIG. 4 is a view showing a gas supply timing chart.
- FIG. 5 is a view showing a gas supply timing chart.
- FIG. 6 is a view showing a gas supply timing chart.
- FIG. 7 is a view showing a gas supply timing chart.
- FIG. 8 is a view showing a step coverage change when only NH supply is changed.
- FIG. 10 is a graph showing pressure dependence of in-situ post treatment.
- FIG. 11 is a view showing a hydrogen treatment effect at the time of composite post treatment.
- FIG. 12 is a diagram showing gas atmosphere dependency during composite post processing.
- FIG. 13 is a diagram showing the unit film thickness dependence of a stacked Cat-SiN film.
- FIGS. 3A and 3B show a case in which a hydrogen gas surface treatment is prioritized, and FIG. 3B shows a case in which an ammonia gas surface treatment is prioritized.
- FIG. 15 is a diagram showing the composition ratio of SiN formed on a 50A SiN film on a silicon substrate, where (a) shows a case where hydrogen gas surface treatment was performed first, and (b) shows an ammonia gas surface treatment. Indicates the case in which
- FIG. 16 is a diagram showing gas introduction order dependence during post processing.
- FIG. 17 is a diagram showing the hydrogen content of a single-layer film made of standard Cat-SiN, a laminated film formed by post-processing of a unit-formed Cat-SiN unit, and a single-layer film made of PECVD-SiN.
- FIG. 18 is a diagram comparing the hydrogen content of each Cat-SiN film.
- FIG. 19 is a view showing film forming conditions of a film forming method according to Example 1 and a conventional film forming method.
- FIG. 20 is a view showing film forming conditions of a film forming method according to Example 2 and a conventional film forming method.
- FIG. 21 is a view showing the results of measuring coverage and I-V electric breakdown voltage characteristics of each silicon nitride film formed by the film forming method according to Example 2 and the conventional film forming method.
- FIG. 22 is a view showing film forming conditions of a film forming method according to Example 3 and a conventional film forming method.
- FIG. 23 shows the measurement results of the in-plane uniformity of the film thickness and the corrosion resistance (etching rate) to an etching solution for each silicon nitride film formed by the film forming method according to Example 3 and the conventional film forming method.
- FIG. 23 shows the measurement results of the in-plane uniformity of the film thickness and the corrosion resistance (etching rate) to an etching solution for each silicon nitride film formed by the film forming method according to Example 3 and the conventional film forming method.
- the unit layer post-processing catalytic chemical vapor deposition apparatus of the present invention is used in a reaction vessel capable of evacuating.
- a catalytic chemical vapor deposition system that forms a thin film on a substrate by utilizing the catalytic action of a resistively heated exothermic catalyst.
- a gas supply that can introduce the thin film component-containing gas and hydrogen gas into the reaction vessel in a pulsed manner.
- System and an exhaust system capable of vacuum evacuation and pressure control.
- the thin film component-containing gas and hydrogen gas introduced in pulse form come into contact with the heat generating catalyst and decompose, forming a thin film for each unit layer on the substrate. Then, a thin film is formed by performing a surface treatment on the thin film for each unit layer.
- FIG. 1 is a schematic configuration diagram showing a unit layer post-processing catalytic chemical vapor deposition apparatus according to an embodiment of the present invention.
- the unit layer post-treatment catalyzing device 1 includes a reaction system 10, a gas supply system 11, and an exhaust system 13.
- a gas introduction part 4 for introducing the raw material gas 3 into the reaction vessel 2 is provided.
- a substrate holder 6 for mounting a substrate 5 is provided at a position facing the gas introduction part 4.
- a heater 7 for heating the substrate 5 mounted on the substrate holder 6 to a predetermined temperature is provided.
- the gas introduction section 4 between the gas introduction section 4 and the substrate holder 6 in the reaction vessel 2 has a catalytic action for heating and decomposing the source gas introduced from the gas introduction section 4.
- a medium 8 is provided.
- a gas outlet 15 is provided on the catalyst body 8 side of the gas introduction part 4 so that the ejected raw material gas 3 comes into contact with the catalyst body 8 immediately!
- a high melting point metal wire such as a tungsten wire wound in a coil shape is used as the catalyst body 8.
- the force is not limited to this.
- iridium, rhenium, indium, molybdenum, tantalum, niobium, etc. can be used. And further, these alloys may be used.
- the gas supply manifold 9 connected to the gas introduction unit 4 has a silane gas (Si H), ammonia gas (NH) and hydrogen gas (H), respectively.
- SiH disilane
- SiH trisilane
- SiF silicon tetrafluoride
- SiCl silicon tetrachloride
- SiH C1 dichlorosilane
- Nitrogen hydrides of compounds containing nitrogen such as H 2) can be used.
- the thin-film component-containing gas contains steam.
- a gas that is liquid at room temperature is a carrier gas used as a thin-film component-containing gas whose vapor pressure has been adjusted by publishing.
- the mass flow rate of the source gas can be set and controlled instantaneously by the valve 34 and the second pneumatic operation valve 35 and supplied to the gas supply manifold 9.
- the first pneumatic operation valve 34 and the second pneumatic operation valve 35 switch the rectangular pulse-shaped mass flow rate to the reaction vessel side while minimizing the fluctuation of the set flow rate.
- the nitrogen gas introduction line 27 is connected to the purge of the reaction system 10 and the normal pressure after the film formation. Supply nitrogen gas used for recovery and the like.
- the exhaust system 13 includes an auxiliary exhaust pump 41, a turbo molecular pump 43, a pressure control main knob 45, a sub-valve 47, and a vacuum gauge 49, and the reaction vessel 2 can be evacuated.
- 51 indicates a relief valve
- 53 indicates a manual valve
- this line is a vent line at the time of normal pressure return.
- the pressure control main valve 45 controls the degree of vacuum in the reaction vessel 2 by controlling the opening of the valve so as to reach a set pressure.
- the reaction system 10, the gas supply system 11, and the exhaust system 13 are controlled by a computer, and the process sequence of opening / closing valves, setting the mass flow rate, supplying current to the catalyst, and the like in accordance with evacuation and gas introduction is not shown.
- the user can set recipes such as operation panel power, process conditions and sequence processing.
- 55 indicates a gate valve
- 57 indicates a load lock chamber
- the substrate 5 is carried into the reaction container 2 via the gate valve 55 and placed on the substrate holder 6.
- the inside of the reaction vessel 2 is evacuated and purged with a hydrogen gas or a nitrogen gas, and then the pressure is controlled to a predetermined pressure with these purge gases.
- the heater 7 is energized to perform resistance heating
- the substrate 5 on the substrate holder 6 is heated to a predetermined temperature (for example, about 200 ° C. to 600 ° C.), and the catalyst body (such as a thin tungsten wire) 8 is energized.
- the catalyst body 8 is heated to a predetermined temperature (for example, about 1600 ° C. to about 1800 ° C.).
- the first pneumatic operation valve 34 is opened, and the second pneumatic operation valve 35 is closed to flow a predetermined set flow rate to the vent side to obtain a stable mass flow rate. Keep it. Then, the opening and closing of the first pneumatic operating valve 34 and the second pneumatic operating valve 35 are instantaneously switched, and the raw material gas (mixed gas of silane gas and ammonia gas, The gas (mass) is introduced in a rectangular pulse shape, and the raw material gas is ejected toward the catalyst 8 from a plurality of gas ejection ports 15 formed on the lower surface of the gas introduction unit 4.
- the raw material gas is catalytically thermally decomposed by the heated catalyst 8, and a silicon nitride film is formed on the substrate 5, for example, with a monolayer as a unit layer (hereinafter, this film formation is performed). Process).
- the film formation conditions at this time are as follows: a flow rate of silane gas (SiH 4) is 7 sccm, and an ammonia gas (NH 3)
- the temperature of the catalyst body 8 is 1700 ° C., and in this embodiment, an ultra-thin silicon nitride film having a thickness of 1 nm is obtained in a single film-forming step of, for example, 10 seconds.
- hydrogen gas is introduced into the gas introduction unit 4 through the gas supply manifold 9 for, for example, 15 seconds, and the hydrogen gas ejected from the gas ejection port 15 is heated.
- the hydrogen gas ejected from the gas ejection port 15 is heated.
- the surface of the silicon nitride film formed on the substrate 5 is exposed to the activated hydrogen gas, and the composition of the surface of the silicon nitride film is increased. Is improved (hereinafter, this step is referred to as one surface treatment step).
- ammonia gas is introduced into the gas introduction unit 4 through the gas supply manifold 9 for, for example, 15 seconds, and the ammonia gas ejected from the gas ejection port 15 is heated. It is activated and supplied onto the substrate 5 via the catalyst 8.
- instantaneous switching of gas introduction, pressure control, and high-speed vacuum evacuation can be performed, so that a thin-film component-containing gas and hydrogen gas can be introduced in a rectangular pulse shape. It can be decomposed by contact with the exothermic catalyst to form a thin film for each unit layer on the substrate, and the thin film for each unit layer can be surface-treated to form a laminated thin film.
- This unit layer post-processing film formation method is a method in which resistive heating is performed in a reaction vessel that can be evacuated. This is a catalytic chemical vapor deposition method for forming a thin film on a substrate by utilizing the catalytic action of a thermal catalyst.
- An active dangling process for generating a thin film for generating a thin film, a film forming process for forming a thin film for each unit layer on a substrate, a surface treatment process for performing a surface treatment of the thin film for each unit layer with hydrogen gas containing an active species, and an active species
- the surface treatment of the thin film of each unit layer with the gas containing the thin film component containing is defined as one cycle, and a plurality of cycles are repeated to form a laminated thin film.
- the process conditions are as follows: the temperature of the catalyst (Cat) wire, W (tungsten), is 1700 ° C, the substrate heater temperature is 100-300 ° C, and an 8-inch Si wafer is used as the substrate.
- a silicon nitride film will be described as an example.
- FIG. 2 is a diagram showing an example of a gas supply timing chart of the unit layer post-processing film forming method according to the present embodiment.
- the unit layer post-processing film forming method according to the present embodiment is a SiH ZNH
- the film forming process is continuously performed, and the post process and the film forming process are performed in one process.
- Figures 3 to 7 show other examples of gas supply timing charts.
- the common process conditions are as follows: the temperature of the heating catalyst is 1700 ° C and the pressure is lOPa.
- Fig. 3 is a diagram showing film formation ⁇ hydrogen surface treatment ⁇ ammonia surface treatment ⁇ film formation ⁇ ' ⁇ ⁇
- Fig. 4 shows film formation ⁇ ammonia surface treatment ⁇ hydrogen surface treatment ⁇ film formation ⁇ '
- Figure 5 shows film formation ⁇ hydrogen surface treatment ⁇ ammonia surface treatment ⁇ hydrogen surface treatment ⁇ film formation ⁇ '
- Fig. 6 shows film formation-> ammonia surface treatment-> hydrogen surface treatment-> ammonia surface treatment-> film formation-> Fig. 7 shows film formation-> vacuum evacuation-> hydrogen surface treatment-> ammonia surface treatment-> vacuum evacuation-> It is a figure which shows a film ⁇ ' ⁇ ⁇ ⁇ .
- the introduction of hydrogen gas in the film formation process and the subsequent hydrogen surface treatment are performed continuously, and after the ammonia surface treatment, the introduction of ammonia gas in the film formation process is performed continuously.
- the gas memory effect is extinguished by evacuating the atmosphere before and after the film forming process to remove the residual gas in the atmosphere.
- the presence / absence of gas supply can be ensured.
- film formation can be performed for each monolayer.
- Figure 8 shows that the process conditions maintained the SiH / H supply constant ([7ZlO] sccm),
- step coverage improvement is not gradual
- the step coverage deteriorates again.
- the step coverage improvement tends to disappear.
- Figure 9 shows H and N as additive gases for improving step coverage under NH supply suppression.
- the step coverage is much better when the added gas is hydrogen gas than nitrogen.
- H is preferred as a type of additive gas for improving step coverage.
- FIGS 8 and 9 show that the NH-derived Cat radical (Cat-NH) and the H-derived Cat radical
- SiN film Cat One of the roles played by added H in the CVD system is Si-rich SiN
- this is supposed to be nothing but the inhibition of the surface process of SiN during the deposition, and also contributes to the improvement of the step coverage through the shift of the system to the surface process rate-limiting side.
- SiH C1 (dichlorosilane; DCS), Si CI (hexachlorodisilane; HCD), SiCl (four
- saturated hydrogenated Si such as SiH and SiH is used as the Si source gas.
- FIG. 10 shows the refractive index and unit layer of lOOnm-thick SiN in which about 100 lnm-thick SiN unit layers are stacked.
- FIG. 6 is a graph showing the in-situ post-processing pressure dependence of a film forming rate per unit thickness and an 8-inch substrate in-plane film thickness distribution.
- the refractive index, the film formation rate, and the in-plane film thickness uniformity hardly depend on the processing pressure, but the post-processing atmosphere (gas type), that is, the ammonia gas and hydrogen gas Differences have been shown to be affected.
- the post-processing atmosphere is, for example, [A (20 seconds) ⁇ exhaust (5 seconds) ⁇ NH (10 seconds)]
- the refractive index, the film formation rate per unit layer, and the film thickness distribution in the plane of the 8-inch substrate are significantly lower.
- Figure 12 shows the gas atmosphere during "combined post-treatment" using both Cat-H irradiation and Cat-NH irradiation.
- FIG. 13 shows the results of Cat-CVD by unit layer applying “composite post-processing” with optimized process conditions.
- FIG. 9 is a diagram showing the dependence of the leakage current of a stacked SiN film on the unit layer thickness.
- the leak current decreases as the unit layer thickness decreases! / Puru. Therefore, the smaller the deposited film thickness per cycle is, the more preferably the post-processing is performed for each unit layer in a unit of a monomolecular layer, the more the leak current is reduced and the electrical characteristics are improved.
- FIG. 14 is a diagram showing the surface treatment depending on the gas type and the elemental profile in the thickness direction of the SiN film.
- SiH and H are introduced at the same time 30 seconds after the introduction.
- the film composition depends not only on the [Si substrate deposited film] interface but also on the type of gas introduced in advance. It is significantly different over the entire thickness direction.
- Figures 15 (a) and (b) show the case where a Si substrate with a 5-nm-thick SiN film formed on the surface was used as the substrate, but it did not depend on the underlying SiN composition. The tendency is the same as in the case of direct film formation.
- the properties of the entire deposited film are determined insensitively to the modification state and the material of the substrate surface.
- the “surface” involved in the system is not only the substrate surface, which is the adsorbent for the generated radicals, but also the surface of the Cat wire, which is where radicals are produced. It has been suggested that the origin of this should be found in the process on the Cat line surface rather than the process on the substrate surface.
- FIG. 16 is a diagram showing the dependence of the order of gas introduction during post processing.
- the effect on the step coverage of the laminated SiN is that the step coverage changes completely depending on the order even if the refractive index is the same.To achieve a high step coverage, it is extremely effective to introduce ammonia as a post-process after forming a unit film. It is.
- FIG. 17 shows a single-layer film made of standard Cat-SiN and a post-process of unit-layer Cat-SiN unit layer.
- FIG. 4 is a diagram showing the hydrogen content of a laminated film and a single-layer film made of PECVD-SiN.
- the film is formed by Cat-CVD, it will further decrease to about 2.2 x 10 21 cm- 3 .
- FIG. 18 shows the effect of the addition of H, the suppression of NH supply, and the effect of the laminated film structure on the hydrogen content.
- FIG. 1 A first figure.
- the hydrogen content in the laminated SiN film with the Si-rich SiN film as the unit layer is determined by adding [H] and adding sufficient NH to the [SiH / NH] raw material.
- VDSiN Rather less than in VDSiN, regardless of whether it is a laminated or single layer film.
- the surface treatment process using hydrogen gas is a surplus Si bow I punching process and an addition process for supplementing the surface treatment power with ammonia gas.
- the uniformity of the film thickness and the film quality can be improved by the process of compounding the above.
- the final process of one cycle is treated with ammonia gas to make the step coverage much better.
- the unit layer post-process film forming method according to the present embodiment can form a thin film having good in-plane film thickness uniformity, step coverage, and film quality.
- Example 1 referring to FIG. 1, the heater 7 was energized and heated by resistance under a reduced pressure of lOPa to heat the substrate 5 on the substrate holder 6 to, for example, 200 ° C. (Electrical wire, etc.) 8 is heated by resistance, and the catalyst 8 is heated to 1700 ° C.
- the film formation conditions are as follows: a flow rate of silane gas (SiH) is 7 sccm,
- the flow rate of gas (NH 2) is 10 sccm
- the flow rate of hydrogen gas (H 2) is 10 sccm
- the force is 10 Pa
- the temperature of the catalyst body 8 is 1700 ° C.
- a thin film of silicon nitride having a thickness of lnm is obtained by one film forming process for 10 seconds.
- the film forming step, one and other surface treatment steps are one cycle, and this one cycle of the film formation step, one and other surface treatment steps are continuously performed in this embodiment.
- a silicon nitride film having a total thickness of 50 nm was finally formed.
- the hydrogen concentration (hydrogen content) in the silicon nitride film measured by Fourier transform infrared spectrophotometer (FTIR) was 2 ⁇ 10 21 atomZcm 3 o
- a silicon nitride film having a thickness of 50 nm formed in a single film forming step as in the conventional method was measured by a Fourier transform infrared spectrophotometer (FTIR).
- FTIR Fourier transform infrared spectrophotometer
- the hydrogen concentration in the silicon nitride film was 7 ⁇ 10 21 atomZcm 3 .
- the conventional film forming conditions at this time are, as shown in FIG. 19, the flow rate of silane gas (SiH).
- the pressure in the reaction vessel 2 is 10 Pa, and the temperature of the catalyst body 8 is 1700 ° C. (these conditions are the same as those of the film forming method in the embodiment of the present invention).
- a silicon nitride film with a thickness of 50 nm is obtained in the film forming process.
- the film forming step, one and other surface treatment steps of the present invention are defined as one cycle, and this one cycle of the film forming step, one and other surface treatment steps are continuously repeated a plurality of times. Therefore, according to the film forming method of the present invention for finally obtaining a silicon nitride film having a desired film thickness, the hydrogen concentration of the silicon nitride film obtained by the conventional film forming method is greatly reduced. Lower. Therefore, it is possible to provide a high-quality silicon nitride film having high reliability over a long period without increasing the leakage current when a high electric field is applied.
- Example 1 a silicon nitride film having a thickness of lnm was formed in one film forming step, and this film forming step, one surface treatment step, and one cycle of another surface treatment step were continuously performed. A silicon nitride film having a thickness of 50 nm was finally formed by repeating 50 times.
- a silicon nitride film having a thickness of 1 nm was formed in one cycle by the same deposition method as in the first embodiment. The film was formed, and this one cycle processing step was continuously repeated 100 times to finally form a silicon nitride film having a thickness of 10 Onm.
- the flow rate of the silane gas (SiH 4) was 7 seconds.
- ammonia gas (NH) flow rate is 10sccm
- hydrogen gas (H) flow rate is 10sccm
- the pressure in the reaction vessel 2 was 10 Pa, and the temperature of the catalyst body 8 was 1700 ° C (these conditions were the same as those in Example 1). Obtain a lnm silicon nitride film.
- Example 2 As in Example 1, hydrogen gas was introduced in one surface treatment step, and ammonia gas was introduced in the other surface treatment steps.
- the step coverage (%) and the current-voltage (IV) withstand voltage characteristics (MV / cm) of the silicon nitride film having a total film thickness of 100 nm obtained by the film forming method according to Example 2 were measured.
- the side coverage of the silicon nitride film was 72%
- the bottom force coverage was 90%
- the withstand voltage of the IV electric characteristics was 4.8 MVZcm.
- the coverage (%) and the current were compared for a 100 nm thick silicon nitride film formed in a single film forming process as in the conventional method.
- the voltage (IV) withstand voltage (MV / cm) was measured, as shown in Fig. 21, the side coverage of the silicon nitride film was 72%, the bottom coverage was 90%, and the IV withstand voltage was 0.1mVZcm. It was obtained as follows.
- the flow rate of the silane gas (SiH 4) was 7 sccm.
- the flow rate of ammonia gas (NH) is 10 sccm
- the flow rate of hydrogen gas (H) is 10 sccm
- the pressure inside the reaction vessel 2 was 10 Pa and the temperature of the catalyst 8 was 1700 ° C (these conditions Under the same conditions as in the case of the film forming method in Example 2), a silicon nitride film having a thickness of ⁇ m is obtained in one film forming step.
- the above-mentioned film forming step, one and other surface treatment steps are regarded as one cycle, and this one cycle of the film forming step, one surface treatment step and other surface treatment steps are continuously performed.
- the film formation method according to the present invention in which a silicon nitride film having a desired film thickness is finally obtained by repeating a plurality of times, has improved step coverage over the silicon nitride film obtained by the conventional film formation method.
- the IV withstand voltage characteristics have also been improved.
- a silicon nitride film having a thickness of lnm is formed in one film forming step by the same film forming method as the second embodiment, and this film forming step, one surface treatment step, and other The surface treatment process was continuously repeated 100 times to finally form a silicon nitride film having a thickness of 100 nm.
- the film formation conditions were such that the flow rate of silane gas (SiH) was 7 sccm,
- the flow rate of ammonia gas (NH) is 10sccm
- the flow rate of hydrogen gas (H) is 10sccm
- Example 3 An extremely thin silicon nitride film having a thickness of 1 nm is obtained.
- a silicon nitride film having a film thickness of 100 nm in a single film forming process as in the conventional method was compared with a silicon nitride film having a film thickness of 100 nm.
- the measurement results shown in FIG. 6, that is, ⁇ 10% in-plane uniformity and an etching rate of 6 nm Zmin were obtained.
- the film formation conditions were such that the flow rate of silane gas (SiH) was 7 sccc.
- the flow rate of ammonia gas (NH) is 100 sccm
- the flow rate of hydrogen gas (H) is Osccm
- the pressure in the reaction vessel 2 is 10 Pa
- the temperature of the catalyst body 8 is 1700 ° C.
- a silicon nitride film having a thickness of 100 nm is obtained in one film forming step.
- the film forming step, one surface treatment step, and another surface treatment step One cycle is performed, and the process of the one cycle is repeated a plurality of times continuously to finally obtain a silicon nitride film having a desired film thickness.
- the in-plane uniformity of the film thickness of the silicon nitride film can be improved, and the corrosion resistance to the etchant can be improved.
- the pressure in the reaction vessel 2 may be arbitrarily adjusted during the transition between the film forming step, one surface treatment step, and another surface treatment step in this one cycle.
- one surface treatment step and another surface treatment step after the film formation step in this one cycle may be alternately repeated a plurality of times.
- a stacked film can be formed in units of monomolecular layers, and the in-plane uniformity of the film thickness can be obtained. It is useful for forming a thin film with good step coverage and film quality.
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Abstract
Description
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JP6789257B2 (ja) * | 2018-02-28 | 2020-11-25 | 株式会社Kokusai Electric | 半導体装置の製造方法、基板処理装置、およびプログラム |
US10580645B2 (en) | 2018-04-30 | 2020-03-03 | Asm Ip Holding B.V. | Plasma enhanced atomic layer deposition (PEALD) of SiN using silicon-hydrohalide precursors |
KR20220081905A (ko) | 2020-12-09 | 2022-06-16 | 에이에스엠 아이피 홀딩 비.브이. | 실리콘 질화물 증착용 실리콘 전구체 |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2000216163A (ja) * | 1999-01-20 | 2000-08-04 | Fujitsu Ltd | 半導体装置の製造方法 |
JP2000216165A (ja) * | 1999-01-21 | 2000-08-04 | Fujitsu Ltd | 半導体装置の製造方法 |
JP2002203855A (ja) * | 2001-01-05 | 2002-07-19 | Sony Corp | 半導体装置の製造方法 |
JP2002294451A (ja) * | 2001-03-30 | 2002-10-09 | Sony Corp | 多結晶性半導体薄膜の形成方法、半導体装置の製造方法、並びにこれらの方法の実施に使用する装置 |
JP2003309119A (ja) * | 2002-04-15 | 2003-10-31 | Mitsubishi Electric Corp | シリコン窒化膜の成膜方法、成膜装置、及び半導体装置の製造方法 |
Family Cites Families (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2789587B2 (ja) * | 1988-01-08 | 1998-08-20 | 日本電気株式会社 | 絶縁薄膜の製造方法 |
JP2515408B2 (ja) * | 1989-10-31 | 1996-07-10 | 株式会社東芝 | バイポ−ラ型半導体装置 |
JP3046643B2 (ja) * | 1991-06-10 | 2000-05-29 | 富士通株式会社 | 半導体装置の製造方法 |
US5719065A (en) * | 1993-10-01 | 1998-02-17 | Semiconductor Energy Laboratory Co., Ltd. | Method for manufacturing semiconductor device with removable spacers |
JP3440291B2 (ja) * | 1995-05-25 | 2003-08-25 | 独立行政法人産業技術総合研究所 | 微結晶シリコン薄膜トランジスタ |
JP3737221B2 (ja) * | 1996-09-06 | 2006-01-18 | 英樹 松村 | 薄膜作成方法及び薄膜作成装置 |
WO2000063956A1 (fr) * | 1999-04-20 | 2000-10-26 | Sony Corporation | Procede et dispositif pour realiser un depot de couches minces, et procede pour la production d'un dispositif a semiconducteur a couches minces |
DE10049257B4 (de) * | 1999-10-06 | 2015-05-13 | Samsung Electronics Co., Ltd. | Verfahren zur Dünnfilmerzeugung mittels atomarer Schichtdeposition |
US6348420B1 (en) * | 1999-12-23 | 2002-02-19 | Asm America, Inc. | Situ dielectric stacks |
JP4710187B2 (ja) * | 2000-08-30 | 2011-06-29 | ソニー株式会社 | 多結晶シリコン層の成長方法および単結晶シリコン層のエピタキシャル成長方法 |
US6689220B1 (en) * | 2000-11-22 | 2004-02-10 | Simplus Systems Corporation | Plasma enhanced pulsed layer deposition |
US7172792B2 (en) * | 2002-12-20 | 2007-02-06 | Applied Materials, Inc. | Method for forming a high quality low temperature silicon nitride film |
US7468311B2 (en) * | 2003-09-30 | 2008-12-23 | Tokyo Electron Limited | Deposition of silicon-containing films from hexachlorodisilane |
-
2005
- 2005-03-24 TW TW094109154A patent/TW200603287A/zh not_active IP Right Cessation
- 2005-03-25 US US10/593,444 patent/US20080050523A1/en not_active Abandoned
- 2005-03-25 CN CNB2005800097044A patent/CN100444332C/zh not_active Expired - Fee Related
- 2005-03-25 KR KR1020067019946A patent/KR100882174B1/ko active IP Right Grant
- 2005-03-25 WO PCT/JP2005/005566 patent/WO2005093809A1/ja active Application Filing
- 2005-03-25 JP JP2006511534A patent/JPWO2005093809A1/ja active Pending
-
2009
- 2009-12-07 JP JP2009277900A patent/JP2010067993A/ja active Pending
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2000216163A (ja) * | 1999-01-20 | 2000-08-04 | Fujitsu Ltd | 半導体装置の製造方法 |
JP2000216165A (ja) * | 1999-01-21 | 2000-08-04 | Fujitsu Ltd | 半導体装置の製造方法 |
JP2002203855A (ja) * | 2001-01-05 | 2002-07-19 | Sony Corp | 半導体装置の製造方法 |
JP2002294451A (ja) * | 2001-03-30 | 2002-10-09 | Sony Corp | 多結晶性半導体薄膜の形成方法、半導体装置の製造方法、並びにこれらの方法の実施に使用する装置 |
JP2003309119A (ja) * | 2002-04-15 | 2003-10-31 | Mitsubishi Electric Corp | シリコン窒化膜の成膜方法、成膜装置、及び半導体装置の製造方法 |
Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2006278497A (ja) * | 2005-03-28 | 2006-10-12 | Tokyo Electron Ltd | 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 |
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 |
US7727590B2 (en) * | 2006-05-18 | 2010-06-01 | California Institute Of Technology | Robust filament assembly for a hot-wire chemical vapor deposition system |
JP2013102200A (ja) * | 2007-04-02 | 2013-05-23 | Hitachi Kokusai Electric Inc | 基板処理装置、基板処理方法及び半導体装置の製造方法 |
JP2011168881A (ja) * | 2010-01-25 | 2011-09-01 | Hitachi Kokusai Electric Inc | 半導体装置の製造方法及び基板処理装置 |
US8691708B2 (en) | 2010-01-25 | 2014-04-08 | Hitachi Kokusai Electric Inc. | Method of manufacturing semiconductor device and substrate processing apparatus |
JP2014179607A (ja) * | 2013-03-14 | 2014-09-25 | Asm Ip Holding B V | 低温でのSiNの蒸着用Si前駆体 |
Also Published As
Publication number | Publication date |
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CN1938834A (zh) | 2007-03-28 |
CN100444332C (zh) | 2008-12-17 |
JPWO2005093809A1 (ja) | 2008-02-14 |
TWI363384B (ja) | 2012-05-01 |
KR20070004780A (ko) | 2007-01-09 |
US20080050523A1 (en) | 2008-02-28 |
JP2010067993A (ja) | 2010-03-25 |
KR100882174B1 (ko) | 2009-02-06 |
TW200603287A (en) | 2006-01-16 |
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