KR20210027507A - 순수 금속 막의 증착 - Google Patents
순수 금속 막의 증착 Download PDFInfo
- Publication number
- KR20210027507A KR20210027507A KR1020217005949A KR20217005949A KR20210027507A KR 20210027507 A KR20210027507 A KR 20210027507A KR 1020217005949 A KR1020217005949 A KR 1020217005949A KR 20217005949 A KR20217005949 A KR 20217005949A KR 20210027507 A KR20210027507 A KR 20210027507A
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- KR
- South Korea
- Prior art keywords
- metal
- precursor
- molybdenum
- filling
- substrate
- 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.)
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- 229910052751 metal Inorganic materials 0.000 title claims abstract description 88
- 239000002184 metal Substances 0.000 title claims abstract description 88
- 230000008021 deposition Effects 0.000 title claims abstract description 39
- 238000000034 method Methods 0.000 claims abstract description 84
- 239000002243 precursor Substances 0.000 claims abstract description 81
- 239000003638 chemical reducing agent Substances 0.000 claims abstract description 40
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims abstract description 21
- 239000001301 oxygen Substances 0.000 claims abstract description 21
- 229910052760 oxygen Inorganic materials 0.000 claims abstract description 21
- 229910052721 tungsten Inorganic materials 0.000 claims abstract description 15
- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 claims abstract description 13
- 239000010937 tungsten Substances 0.000 claims abstract description 13
- 229910052750 molybdenum Inorganic materials 0.000 claims abstract description 12
- ZOKXTWBITQBERF-UHFFFAOYSA-N Molybdenum Chemical compound [Mo] ZOKXTWBITQBERF-UHFFFAOYSA-N 0.000 claims abstract description 9
- 239000011733 molybdenum Substances 0.000 claims abstract description 9
- 238000000151 deposition Methods 0.000 claims description 47
- 239000000758 substrate Substances 0.000 claims description 41
- 230000006911 nucleation Effects 0.000 claims description 22
- 238000010899 nucleation Methods 0.000 claims description 22
- 239000000460 chlorine Substances 0.000 claims description 20
- 238000000231 atomic layer deposition Methods 0.000 claims description 16
- 239000001257 hydrogen Substances 0.000 claims description 12
- 229910052739 hydrogen Inorganic materials 0.000 claims description 12
- 125000004429 atom Chemical group 0.000 claims description 8
- ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 claims description 7
- 229910052801 chlorine Inorganic materials 0.000 claims description 7
- CNRRZWMERIANGJ-UHFFFAOYSA-N chloro hypochlorite;molybdenum Chemical group [Mo].ClOCl CNRRZWMERIANGJ-UHFFFAOYSA-N 0.000 claims description 7
- 150000002431 hydrogen Chemical group 0.000 claims description 7
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 claims description 5
- ASLHVQCNFUOEEN-UHFFFAOYSA-N dioxomolybdenum;dihydrochloride Chemical compound Cl.Cl.O=[Mo]=O ASLHVQCNFUOEEN-UHFFFAOYSA-N 0.000 claims description 5
- UYEGPKGLVUUIGD-UHFFFAOYSA-J tetrachloro(oxo)molybdenum Chemical compound Cl[Mo](Cl)(Cl)(Cl)=O UYEGPKGLVUUIGD-UHFFFAOYSA-J 0.000 claims description 5
- RJNBTFHJYBHWCU-UHFFFAOYSA-L Cl[W](Cl)(=O)=O Chemical compound Cl[W](Cl)(=O)=O RJNBTFHJYBHWCU-UHFFFAOYSA-L 0.000 claims description 3
- LQNAFXBTXJHEAX-UHFFFAOYSA-J Cl[W](Cl)(Cl)(Cl)=O Chemical compound Cl[W](Cl)(Cl)(Cl)=O LQNAFXBTXJHEAX-UHFFFAOYSA-J 0.000 claims description 3
- 239000012528 membrane Substances 0.000 claims description 3
- NGKVXLAPSYULSX-UHFFFAOYSA-N tungsten(vi) oxytetrafluoride Chemical group F.F.F.F.[W]=O NGKVXLAPSYULSX-UHFFFAOYSA-N 0.000 claims description 3
- 150000002739 metals Chemical class 0.000 abstract description 4
- 239000010410 layer Substances 0.000 description 61
- 239000010408 film Substances 0.000 description 39
- 230000008569 process Effects 0.000 description 35
- 239000007789 gas Substances 0.000 description 24
- 235000012431 wafers Nutrition 0.000 description 24
- 238000012545 processing Methods 0.000 description 22
- 239000004065 semiconductor Substances 0.000 description 17
- 239000000463 material Substances 0.000 description 14
- 238000005229 chemical vapour deposition Methods 0.000 description 13
- 238000012546 transfer Methods 0.000 description 12
- 238000004519 manufacturing process Methods 0.000 description 11
- YCKRFDGAMUMZLT-UHFFFAOYSA-N Fluorine atom Chemical compound [F] YCKRFDGAMUMZLT-UHFFFAOYSA-N 0.000 description 9
- 229910052731 fluorine Inorganic materials 0.000 description 9
- 239000011737 fluorine Substances 0.000 description 9
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 7
- 230000004888 barrier function Effects 0.000 description 7
- 238000010926 purge Methods 0.000 description 7
- 239000000376 reactant Substances 0.000 description 7
- 239000010703 silicon Substances 0.000 description 7
- 229910052710 silicon Inorganic materials 0.000 description 7
- NRTOMJZYCJJWKI-UHFFFAOYSA-N Titanium nitride Chemical compound [Ti]#N NRTOMJZYCJJWKI-UHFFFAOYSA-N 0.000 description 5
- 238000005137 deposition process Methods 0.000 description 5
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 description 5
- 239000010409 thin film Substances 0.000 description 5
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 4
- 238000009792 diffusion process Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 150000004820 halides Chemical class 0.000 description 4
- 229910052736 halogen Inorganic materials 0.000 description 4
- 150000002367 halogens Chemical class 0.000 description 4
- 238000001465 metallisation Methods 0.000 description 4
- 150000005310 oxohalides Chemical class 0.000 description 4
- 125000004430 oxygen atom Chemical group O* 0.000 description 4
- 239000013590 bulk material Substances 0.000 description 3
- 238000006243 chemical reaction Methods 0.000 description 3
- 239000011651 chromium Substances 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 239000000203 mixture Substances 0.000 description 3
- 229920002120 photoresistant polymer Polymers 0.000 description 3
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 2
- ZOXJGFHDIHLPTG-UHFFFAOYSA-N Boron Chemical compound [B] ZOXJGFHDIHLPTG-UHFFFAOYSA-N 0.000 description 2
- 229910052581 Si3N4 Inorganic materials 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- 229910052796 boron Inorganic materials 0.000 description 2
- 238000004422 calculation algorithm Methods 0.000 description 2
- 229910052799 carbon Inorganic materials 0.000 description 2
- 229910052804 chromium Inorganic materials 0.000 description 2
- 238000004140 cleaning Methods 0.000 description 2
- 238000004590 computer program Methods 0.000 description 2
- 239000004020 conductor Substances 0.000 description 2
- 230000008602 contraction Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 239000003989 dielectric material Substances 0.000 description 2
- 238000009826 distribution Methods 0.000 description 2
- 238000005530 etching Methods 0.000 description 2
- 230000006870 function Effects 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 238000010348 incorporation Methods 0.000 description 2
- 229910052740 iodine Inorganic materials 0.000 description 2
- 238000001459 lithography Methods 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- 238000000059 patterning Methods 0.000 description 2
- 238000005240 physical vapour deposition Methods 0.000 description 2
- 230000009467 reduction Effects 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
- 229910052814 silicon oxide Inorganic materials 0.000 description 2
- 239000010936 titanium Substances 0.000 description 2
- 238000007740 vapor deposition Methods 0.000 description 2
- ZCYVEMRRCGMTRW-UHFFFAOYSA-N 7553-56-2 Chemical compound [I] ZCYVEMRRCGMTRW-UHFFFAOYSA-N 0.000 description 1
- 229910018072 Al 2 O 3 Inorganic materials 0.000 description 1
- WKBOTKDWSSQWDR-UHFFFAOYSA-N Bromine atom Chemical compound [Br] WKBOTKDWSSQWDR-UHFFFAOYSA-N 0.000 description 1
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 description 1
- 229910015648 MoOF Inorganic materials 0.000 description 1
- 229910004298 SiO 2 Inorganic materials 0.000 description 1
- BLRPTPMANUNPDV-UHFFFAOYSA-N Silane Chemical compound [SiH4] BLRPTPMANUNPDV-UHFFFAOYSA-N 0.000 description 1
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 1
- 238000003848 UV Light-Curing Methods 0.000 description 1
- CTUKRAIAEPZKSG-UHFFFAOYSA-L [Br-].[Br-].O=[Mo+2]=O Chemical compound [Br-].[Br-].O=[Mo+2]=O CTUKRAIAEPZKSG-UHFFFAOYSA-L 0.000 description 1
- XACAZEWCMFHVBX-UHFFFAOYSA-N [C].[Mo] Chemical compound [C].[Mo] XACAZEWCMFHVBX-UHFFFAOYSA-N 0.000 description 1
- MVZRYIKSROWGQX-UHFFFAOYSA-L [Ir](Cl)(Cl)(=O)=O Chemical compound [Ir](Cl)(Cl)(=O)=O MVZRYIKSROWGQX-UHFFFAOYSA-L 0.000 description 1
- MEOSMFUUJVIIKB-UHFFFAOYSA-N [W].[C] Chemical compound [W].[C] MEOSMFUUJVIIKB-UHFFFAOYSA-N 0.000 description 1
- 229910021529 ammonia Inorganic materials 0.000 description 1
- 238000003491 array Methods 0.000 description 1
- IVHJCRXBQPGLOV-UHFFFAOYSA-N azanylidynetungsten Chemical compound [W]#N IVHJCRXBQPGLOV-UHFFFAOYSA-N 0.000 description 1
- 230000008901 benefit Effects 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
- AHXGRMIPHCAXFP-UHFFFAOYSA-L chromyl dichloride Chemical compound Cl[Cr](Cl)(=O)=O AHXGRMIPHCAXFP-UHFFFAOYSA-L 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 239000000470 constituent Substances 0.000 description 1
- 238000011109 contamination Methods 0.000 description 1
- 238000005112 continuous flow technique Methods 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 239000000112 cooling gas Substances 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000001723 curing Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- ZOCHARZZJNPSEU-UHFFFAOYSA-N diboron Chemical compound B#B ZOCHARZZJNPSEU-UHFFFAOYSA-N 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 229910000078 germane Inorganic materials 0.000 description 1
- 229910052732 germanium Inorganic materials 0.000 description 1
- GNPVGFCGXDBREM-UHFFFAOYSA-N germanium atom Chemical compound [Ge] GNPVGFCGXDBREM-UHFFFAOYSA-N 0.000 description 1
- 239000011521 glass Substances 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
- 239000011630 iodine Substances 0.000 description 1
- MDKDXDROOSZTMM-UHFFFAOYSA-N iodo hypoiodite molybdenum Chemical class [Mo].IOI MDKDXDROOSZTMM-UHFFFAOYSA-N 0.000 description 1
- 238000005468 ion implantation Methods 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
- 230000001404 mediated effect Effects 0.000 description 1
- 229910001507 metal halide Inorganic materials 0.000 description 1
- 150000005309 metal halides Chemical class 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- -1 oxides Substances 0.000 description 1
- TWNQGVIAIRXVLR-UHFFFAOYSA-N oxo(oxoalumanyloxy)alumane Chemical compound O=[Al]O[Al]=O TWNQGVIAIRXVLR-UHFFFAOYSA-N 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 238000007747 plating Methods 0.000 description 1
- 238000011112 process operation Methods 0.000 description 1
- 238000009877 rendering Methods 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 238000005389 semiconductor device fabrication Methods 0.000 description 1
- 229910000077 silane Inorganic materials 0.000 description 1
- 235000012239 silicon dioxide Nutrition 0.000 description 1
- 239000000377 silicon dioxide Substances 0.000 description 1
- 239000002356 single layer Substances 0.000 description 1
- 238000002791 soaking Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000006557 surface reaction Methods 0.000 description 1
- YNQWRUOYFUZKDU-UHFFFAOYSA-J tetrafluoro(oxo)molybdenum Chemical compound F[Mo](F)(F)(F)=O YNQWRUOYFUZKDU-UHFFFAOYSA-J 0.000 description 1
- 229910052719 titanium Inorganic materials 0.000 description 1
- 238000011282 treatment Methods 0.000 description 1
- NXHILIPIEUBEPD-UHFFFAOYSA-H tungsten hexafluoride Chemical compound F[W](F)(F)(F)(F)F NXHILIPIEUBEPD-UHFFFAOYSA-H 0.000 description 1
- 229910052720 vanadium Inorganic materials 0.000 description 1
- LEONUFNNVUYDNQ-UHFFFAOYSA-N vanadium atom Chemical compound [V] LEONUFNNVUYDNQ-UHFFFAOYSA-N 0.000 description 1
- JBIQAPKSNFTACH-UHFFFAOYSA-K vanadium oxytrichloride Chemical compound Cl[V](Cl)(Cl)=O JBIQAPKSNFTACH-UHFFFAOYSA-K 0.000 description 1
- 239000012808 vapor phase Substances 0.000 description 1
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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
- C23C16/44—Chemical coating by decomposition of gaseous compounds, without leaving reaction products of surface material in the coating, i.e. chemical vapour deposition [CVD] processes characterised by the method of coating
- C23C16/455—Chemical coating by decomposition of gaseous compounds, without leaving reaction products of surface material in the coating, i.e. chemical vapour deposition [CVD] processes characterised by the method of coating characterised by the method used for introducing gases into reaction chamber or for modifying gas flows in reaction chamber
- C23C16/45523—Pulsed gas flow or change of composition over time
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- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C16/00—Chemical coating by decomposition of gaseous compounds, without leaving reaction products of surface material in the coating, i.e. chemical vapour deposition [CVD] processes
- C23C16/44—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
- C23C16/45534—Use of auxiliary reactants other than used for contributing to the composition of the main film, e.g. catalysts, activators or scavengers
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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
- C23C16/02—Pretreatment of the material to be coated
- C23C16/0272—Deposition of sub-layers, e.g. to promote the adhesion of the main coating
- C23C16/0281—Deposition of sub-layers, e.g. to promote the adhesion of the main coating of metallic sub-layers
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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
- C23C16/06—Chemical coating by decomposition of gaseous compounds, without leaving reaction products of surface material in the coating, i.e. chemical vapour deposition [CVD] processes characterised by the deposition of metallic material
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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
- C23C16/06—Chemical coating by decomposition of gaseous compounds, without leaving reaction products of surface material in the coating, i.e. chemical vapour deposition [CVD] processes characterised by the deposition of metallic material
- C23C16/08—Chemical coating by decomposition of gaseous compounds, without leaving reaction products of surface material in the coating, i.e. chemical vapour deposition [CVD] processes characterised by the deposition of metallic material from metal halides
- C23C16/14—Deposition of only one other metal element
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- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C16/00—Chemical coating by decomposition of gaseous compounds, without leaving reaction products of surface material in the coating, i.e. chemical vapour deposition [CVD] processes
- C23C16/44—Chemical coating by decomposition of gaseous compounds, without leaving reaction products of surface material in the coating, i.e. chemical vapour deposition [CVD] processes characterised by the method of coating
- C23C16/455—Chemical coating by decomposition of gaseous compounds, without leaving reaction products of surface material in the coating, i.e. chemical vapour deposition [CVD] processes characterised by the method of coating characterised by the method used for introducing gases into reaction chamber or for modifying gas flows in reaction chamber
- C23C16/45523—Pulsed gas flow or change of composition over time
- C23C16/45525—Atomic layer deposition [ALD]
- C23C16/45553—Atomic layer deposition [ALD] characterized by the use of precursors specially adapted for ALD
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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
- H01L21/28—Manufacture of electrodes on semiconductor bodies using processes or apparatus not provided for in groups H01L21/20 - H01L21/268
- H01L21/283—Deposition of conductive or insulating materials for electrodes conducting electric current
- H01L21/285—Deposition of conductive or insulating materials for electrodes conducting electric current from a gas or vapour, e.g. condensation
- H01L21/28506—Deposition of conductive or insulating materials for electrodes conducting electric current from a gas or vapour, e.g. condensation of conductive layers
- H01L21/28512—Deposition of conductive or insulating materials for electrodes conducting electric current from a gas or vapour, e.g. condensation of conductive layers on semiconductor bodies comprising elements of Group IV of the Periodic Table
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Abstract
Description
도 2a, 도 2b, 도 3a 및 도 3b는 다양한 실시 예들에 따라 금속-함유 스택들이 채용될 수도 있는 구조체들의 예들을 제공한다.
도 4는 가스 매니폴드 시스템을 포함하고 다양한 실시 예들에 따라 채용될 수도 있는 장치의 예를 도시한다.
도 5는 다양한 전구체들의 금속 저항률 및 환원제 : 전구체 몰비들을 도시한다.
도 6a는 본 명세서에 기술된 실시 예들에 따른 증착 프로세스들을 수행하기 적합한 프로세싱 시스템의 블록도이다.
도 6b는 다양한 실시 예들에 따른 ALD 프로세스의 2 개의 증착 사이클들의 일 예를 제공한다.
Claims (16)
- 기판을 금속 옥시할라이드 전구체 및 환원제에 노출시켜 상기 기판 상에 상기 원소 금속의 막을 증착하는 단계를 포함하고, 상기 환원제 대 상기 금속 옥시할라이드 전구체의 몰비는 100 : 1 내지 10000 : 1 이고, 상기 증착된 막은 1 원자% (atomic percentage)이하의 산소를 함유하는, 방법.
- 제 1 항에 있어서,
상기 막은 원자 층 증착 또는 펄싱된 핵생성 층 증착에 의해 증착되는, 방법. - 제 1 항에 있어서,
상기 금속은 몰리브덴 (Mo) 인, 방법. - 제 3 항에 있어서,
상기 금속 옥시할라이드 전구체는 몰리브덴 옥시클로라이드인, 방법. - 제 4 항에 있어서,
몰리브덴 테트라클로라이드 옥사이드 (MoOCl4) 또는 몰리브덴 디클로라이드 디옥사이드 (MoO2Cl2), 방법. - 제 4 항에 있어서,
상기 증착된 막은 1E18 원자/cm3 이하의 염소 농도를 갖는, 방법. - 제 1 항에 있어서,
상기 환원제는 수소 (H2) 인, 방법. - 제 1 항에 있어서,
증착 동안 기판 온도는 350 ℃ 내지 800 ℃ 인, 방법 - 제 1 항에 있어서,
상기 금속은 텅스텐 (W) 인, 방법. - 제 9 항에 있어서,
상기 금속 옥시할라이드 전구체는 텅스텐 테트라플루오라이드 옥사이드 (WOF4), 텅스텐 테트라클로라이드 옥사이드 (WOCl4), 또는 텅스텐 디클로라이드 디옥사이드 (WO2Cl2) 인, 방법. - 제 1 항에 있어서,
상기 기판을 금속 옥시할라이드 전구체 및 환원제에 노출시키는 단계는 금속 옥시할라이드 전구체로 충전 베셀들 (charge vessels) 의 제 1 세트를 충전하고 환원제로 충전 베셀들의 제 2 세트를 충전하는 단계를 포함하고, 상기 제 2 세트의 총 충전 볼륨 (total charge volume) 은 상기 제 1 세트의 총 충전 볼륨보다 큰, 방법. - 제 1 항에 있어서,
상기 원소 금속의 상기 막은 적어도 99 원자% 금속인, 방법. - 몰리브덴 옥시클로라이드 전구체로 충전 베셀들의 제 1 세트를 충전하고 수소로 충전 베셀들의 제 2 세트를 충전하는 단계로서, 상기 제 2 세트의 총 충전 볼륨은 상기 제 1 세트의 총 충전 볼륨보다 큰, 상기 충전 단계; 및 상기 충전 베셀들로부터의 상기 몰리브덴 옥시클로라이드 전구체 및 상기 수소의 교번 펄스들에 기판을 노출시켜 상기 기판 상에 원소 몰리브덴의 막을 증착하는 단계를 포함하고, 상기 수소 대 상기 몰리브덴 옥시클로라이드 전구체의 몰비는 100 : 1 내지 10000 : 1 이고, 상기 증착된 막은 1 원자% 이하의 산소를 함유하는, 방법.
- 제 13 항에 있어서,
몰리브덴 테트라클로라이드 옥사이드 (MoOCl4) 또는 몰리브덴 디클로라이드 디옥사이드 (MoO2Cl2), 방법. - 제 13 항에 있어서,
상기 증착된 막은 1E18 원자/cm3 이하의 염소 농도를 갖는, 방법. - 제 13 항에 있어서,
증착 동안 기판 온도는 적어도 500 ℃ 인, 방법.
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