JP2022504261A - ケイ素及び窒素を含有する膜を製造するための方法 - Google Patents
ケイ素及び窒素を含有する膜を製造するための方法 Download PDFInfo
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- JP2022504261A JP2022504261A JP2021518603A JP2021518603A JP2022504261A JP 2022504261 A JP2022504261 A JP 2022504261A JP 2021518603 A JP2021518603 A JP 2021518603A JP 2021518603 A JP2021518603 A JP 2021518603A JP 2022504261 A JP2022504261 A JP 2022504261A
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- pentachloro
- silicon nitride
- plasma
- nitride film
- reactor
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- 238000000034 method Methods 0.000 title claims abstract description 124
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 title claims abstract description 81
- 229910052757 nitrogen Inorganic materials 0.000 title claims abstract description 40
- 229910052710 silicon Inorganic materials 0.000 title description 35
- 239000010703 silicon Substances 0.000 title description 35
- 229910052581 Si3N4 Inorganic materials 0.000 claims abstract description 128
- HQVNEWCFYHHQES-UHFFFAOYSA-N silicon nitride Chemical compound N12[Si]34N5[Si]62N3[Si]51N64 HQVNEWCFYHHQES-UHFFFAOYSA-N 0.000 claims abstract description 128
- 239000000758 substrate Substances 0.000 claims abstract description 51
- 239000011261 inert gas Substances 0.000 claims abstract description 41
- 239000012686 silicon precursor Substances 0.000 claims abstract description 39
- 238000006243 chemical reaction Methods 0.000 claims abstract description 25
- 239000006227 byproduct Substances 0.000 claims abstract description 19
- 229910021419 crystalline silicon Inorganic materials 0.000 claims abstract description 16
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 claims description 77
- 239000000203 mixture Substances 0.000 claims description 58
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 claims description 40
- 238000010926 purge Methods 0.000 claims description 40
- 229910021529 ammonia Inorganic materials 0.000 claims description 38
- 239000007789 gas Substances 0.000 claims description 37
- 229910052760 oxygen Inorganic materials 0.000 claims description 33
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 31
- 239000001301 oxygen Substances 0.000 claims description 31
- 230000008021 deposition Effects 0.000 claims description 24
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 20
- 229910052786 argon Inorganic materials 0.000 claims description 20
- 229910052799 carbon Inorganic materials 0.000 claims description 20
- 229910052739 hydrogen Inorganic materials 0.000 claims description 20
- 239000001257 hydrogen Substances 0.000 claims description 19
- 238000004833 X-ray photoelectron spectroscopy Methods 0.000 claims description 18
- 238000011282 treatment Methods 0.000 claims description 16
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 claims description 12
- VPRCHVULVWQJIE-UHFFFAOYSA-N trichloro-[1-[dichloro(ethyl)silyl]ethyl]silane Chemical compound Cl[Si](C([Si](CC)(Cl)Cl)C)(Cl)Cl VPRCHVULVWQJIE-UHFFFAOYSA-N 0.000 claims description 11
- ZWZPXXPIXWRJDJ-UHFFFAOYSA-N trichloro-[1-[dichloro(ethyl)silyl]propyl]silane Chemical compound Cl[Si](C([Si](CC)(Cl)Cl)CC)(Cl)Cl ZWZPXXPIXWRJDJ-UHFFFAOYSA-N 0.000 claims description 11
- NATXYYOAAFTVAV-UHFFFAOYSA-N trichloro-[[[dichloro(methyl)silyl]methyl-dimethylsilyl]methyl]silane Chemical compound Cl[Si](C[Si](C[Si](C)(Cl)Cl)(C)C)(Cl)Cl NATXYYOAAFTVAV-UHFFFAOYSA-N 0.000 claims description 11
- OWQVNLQYOAFHSX-UHFFFAOYSA-N trichloro-[[dichloro(ethyl)silyl]methyl]silane Chemical compound CC[Si](Cl)(Cl)C[Si](Cl)(Cl)Cl OWQVNLQYOAFHSX-UHFFFAOYSA-N 0.000 claims description 11
- TYVHBFMOPYZXQF-UHFFFAOYSA-N Cl[Si](C([Si](CC)(Cl)Cl)(C)C)(Cl)Cl Chemical compound Cl[Si](C([Si](CC)(Cl)Cl)(C)C)(Cl)Cl TYVHBFMOPYZXQF-UHFFFAOYSA-N 0.000 claims description 10
- 238000000137 annealing Methods 0.000 claims description 10
- ABVUXBPCPLBFHM-UHFFFAOYSA-N trichloro-[[dichloro(methyl)silyl]methyl]silane Chemical compound C[Si](Cl)(Cl)C[Si](Cl)(Cl)Cl ABVUXBPCPLBFHM-UHFFFAOYSA-N 0.000 claims description 10
- NDIVRDNOMLPQDM-UHFFFAOYSA-N trichloro-[[dichloro(methyl)silyl]methylsilylmethyl]silane Chemical compound Cl[Si](C[SiH2]C[Si](C)(Cl)Cl)(Cl)Cl NDIVRDNOMLPQDM-UHFFFAOYSA-N 0.000 claims description 10
- 239000004065 semiconductor Substances 0.000 claims description 9
- 229910052734 helium Inorganic materials 0.000 claims description 8
- 239000001307 helium Substances 0.000 claims description 8
- SWQJXJOGLNCZEY-UHFFFAOYSA-N helium atom Chemical compound [He] SWQJXJOGLNCZEY-UHFFFAOYSA-N 0.000 claims description 8
- 150000002431 hydrogen Chemical class 0.000 claims description 8
- 238000011065 in-situ storage Methods 0.000 claims description 7
- XDESNYGGKKUBOV-UHFFFAOYSA-N dichloro-[[chloro-[[dichloro(methyl)silyl]methyl]-methylsilyl]methyl]-methylsilane Chemical compound C[Si](Cl)(Cl)C[Si](C)(Cl)C[Si](C)(Cl)Cl XDESNYGGKKUBOV-UHFFFAOYSA-N 0.000 claims description 4
- 239000010935 stainless steel Substances 0.000 claims description 4
- 229910001220 stainless steel Inorganic materials 0.000 claims description 4
- GQMOTYMECCJBDG-UHFFFAOYSA-N trichloro(1-trichlorosilylethyl)silane Chemical compound Cl[Si](Cl)(Cl)C(C)[Si](Cl)(Cl)Cl GQMOTYMECCJBDG-UHFFFAOYSA-N 0.000 claims description 4
- 238000010438 heat treatment Methods 0.000 claims 1
- 239000002243 precursor Substances 0.000 abstract description 46
- 239000012528 membrane Substances 0.000 abstract description 42
- 210000002381 plasma Anatomy 0.000 description 74
- 238000000231 atomic layer deposition Methods 0.000 description 51
- 238000000151 deposition Methods 0.000 description 40
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 35
- 238000005229 chemical vapour deposition Methods 0.000 description 13
- 239000000463 material Substances 0.000 description 13
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 11
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 10
- 150000001875 compounds Chemical class 0.000 description 8
- KSNFJZGSDIMSME-UHFFFAOYSA-N trichloro(2-trichlorosilylpropan-2-yl)silane Chemical compound Cl[Si](Cl)(Cl)C(C)(C)[Si](Cl)(Cl)Cl KSNFJZGSDIMSME-UHFFFAOYSA-N 0.000 description 8
- SQMQUZPNIQTCSF-UHFFFAOYSA-N trichloro-[[dichloro-[[dichloro(methyl)silyl]methyl]silyl]methyl]silane Chemical compound Cl[Si](C[Si](C[Si](C)(Cl)Cl)(Cl)Cl)(Cl)Cl SQMQUZPNIQTCSF-UHFFFAOYSA-N 0.000 description 8
- 125000004122 cyclic group Chemical group 0.000 description 7
- 239000007788 liquid Substances 0.000 description 7
- -1 silicon heteroatom compound Chemical class 0.000 description 7
- 229910001868 water Inorganic materials 0.000 description 7
- 238000004380 ashing Methods 0.000 description 6
- 239000000460 chlorine Substances 0.000 description 6
- 238000004518 low pressure chemical vapour deposition Methods 0.000 description 6
- 229910052754 neon Inorganic materials 0.000 description 6
- GKAOGPIIYCISHV-UHFFFAOYSA-N neon atom Chemical compound [Ne] GKAOGPIIYCISHV-UHFFFAOYSA-N 0.000 description 6
- 239000002904 solvent Substances 0.000 description 6
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 5
- ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 description 5
- MHAJPDPJQMAIIY-UHFFFAOYSA-N Hydrogen peroxide Chemical compound OO MHAJPDPJQMAIIY-UHFFFAOYSA-N 0.000 description 5
- 229910002091 carbon monoxide Inorganic materials 0.000 description 5
- 239000003153 chemical reaction reagent Substances 0.000 description 5
- 229910052801 chlorine Inorganic materials 0.000 description 5
- 238000005137 deposition process Methods 0.000 description 5
- 229930195733 hydrocarbon Natural products 0.000 description 5
- QJGQUHMNIGDVPM-UHFFFAOYSA-N nitrogen group Chemical group [N] QJGQUHMNIGDVPM-UHFFFAOYSA-N 0.000 description 5
- MWUXSHHQAYIFBG-UHFFFAOYSA-N Nitric oxide Chemical compound O=[N] MWUXSHHQAYIFBG-UHFFFAOYSA-N 0.000 description 4
- NBIIXXVUZAFLBC-UHFFFAOYSA-N Phosphoric acid Chemical compound OP(O)(O)=O NBIIXXVUZAFLBC-UHFFFAOYSA-N 0.000 description 4
- 150000004945 aromatic hydrocarbons Chemical class 0.000 description 4
- 238000000576 coating method Methods 0.000 description 4
- PXHVJJICTQNCMI-UHFFFAOYSA-N nickel Substances [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 4
- 235000012239 silicon dioxide Nutrition 0.000 description 4
- 239000000377 silicon dioxide Substances 0.000 description 4
- LXEXBJXDGVGRAR-UHFFFAOYSA-N trichloro(trichlorosilyl)silane Chemical compound Cl[Si](Cl)(Cl)[Si](Cl)(Cl)Cl LXEXBJXDGVGRAR-UHFFFAOYSA-N 0.000 description 4
- GETQZCLCWQTVFV-UHFFFAOYSA-N trimethylamine Chemical compound CN(C)C GETQZCLCWQTVFV-UHFFFAOYSA-N 0.000 description 4
- 238000001039 wet etching Methods 0.000 description 4
- YXFVVABEGXRONW-UHFFFAOYSA-N Toluene Chemical compound CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 description 3
- 230000005587 bubbling Effects 0.000 description 3
- UAOMVDZJSHZZME-UHFFFAOYSA-N diisopropylamine Chemical compound CC(C)NC(C)C UAOMVDZJSHZZME-UHFFFAOYSA-N 0.000 description 3
- 238000009472 formulation Methods 0.000 description 3
- 150000002430 hydrocarbons Chemical class 0.000 description 3
- 238000001095 inductively coupled plasma mass spectrometry Methods 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 238000002161 passivation Methods 0.000 description 3
- 229920001621 AMOLED Polymers 0.000 description 2
- 238000005033 Fourier transform infrared spectroscopy Methods 0.000 description 2
- IMNFDUFMRHMDMM-UHFFFAOYSA-N N-Heptane Chemical compound CCCCCCC IMNFDUFMRHMDMM-UHFFFAOYSA-N 0.000 description 2
- GQPLMRYTRLFLPF-UHFFFAOYSA-N Nitrous Oxide Chemical compound [O-][N+]#N GQPLMRYTRLFLPF-UHFFFAOYSA-N 0.000 description 2
- CBENFWSGALASAD-UHFFFAOYSA-N Ozone Chemical compound [O-][O+]=O CBENFWSGALASAD-UHFFFAOYSA-N 0.000 description 2
- GLUUGHFHXGJENI-UHFFFAOYSA-N Piperazine Chemical compound C1CNCCN1 GLUUGHFHXGJENI-UHFFFAOYSA-N 0.000 description 2
- JUJWROOIHBZHMG-UHFFFAOYSA-N Pyridine Chemical compound C1=CC=NC=C1 JUJWROOIHBZHMG-UHFFFAOYSA-N 0.000 description 2
- 238000000560 X-ray reflectometry Methods 0.000 description 2
- 229910052782 aluminium Inorganic materials 0.000 description 2
- 229910000147 aluminium phosphate Inorganic materials 0.000 description 2
- 238000009835 boiling Methods 0.000 description 2
- 239000003990 capacitor Substances 0.000 description 2
- 239000011248 coating agent Substances 0.000 description 2
- DIOQZVSQGTUSAI-UHFFFAOYSA-N decane Chemical compound CCCCCCCCCC DIOQZVSQGTUSAI-UHFFFAOYSA-N 0.000 description 2
- VEYJKODKHGEDMC-UHFFFAOYSA-N dichloro(trichlorosilyl)silicon Chemical compound Cl[Si](Cl)[Si](Cl)(Cl)Cl VEYJKODKHGEDMC-UHFFFAOYSA-N 0.000 description 2
- PZPGRFITIJYNEJ-UHFFFAOYSA-N disilane Chemical compound [SiH3][SiH3] PZPGRFITIJYNEJ-UHFFFAOYSA-N 0.000 description 2
- SNRUBQQJIBEYMU-UHFFFAOYSA-N dodecane Chemical compound CCCCCCCCCCCC SNRUBQQJIBEYMU-UHFFFAOYSA-N 0.000 description 2
- 238000010894 electron beam technology Methods 0.000 description 2
- 238000002347 injection Methods 0.000 description 2
- 239000007924 injection Substances 0.000 description 2
- 238000003475 lamination Methods 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 150000002739 metals Chemical class 0.000 description 2
- 229910052759 nickel Inorganic materials 0.000 description 2
- BKIMMITUMNQMOS-UHFFFAOYSA-N nonane Chemical compound CCCCCCCCC BKIMMITUMNQMOS-UHFFFAOYSA-N 0.000 description 2
- 229920002120 photoresistant polymer Polymers 0.000 description 2
- 230000000704 physical effect Effects 0.000 description 2
- 238000009832 plasma treatment Methods 0.000 description 2
- 239000000376 reactant Substances 0.000 description 2
- 229920006395 saturated elastomer Polymers 0.000 description 2
- 229910052814 silicon oxide Inorganic materials 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 239000010963 304 stainless steel Substances 0.000 description 1
- 239000010964 304L stainless steel Substances 0.000 description 1
- MGWGWNFMUOTEHG-UHFFFAOYSA-N 4-(3,5-dimethylphenyl)-1,3-thiazol-2-amine Chemical compound CC1=CC(C)=CC(C=2N=C(N)SC=2)=C1 MGWGWNFMUOTEHG-UHFFFAOYSA-N 0.000 description 1
- 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 1
- BSYNRYMUTXBXSQ-UHFFFAOYSA-N Aspirin Chemical compound CC(=O)OC1=CC=CC=C1C(O)=O BSYNRYMUTXBXSQ-UHFFFAOYSA-N 0.000 description 1
- 239000004215 Carbon black (E152) Substances 0.000 description 1
- 239000005046 Chlorosilane Substances 0.000 description 1
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- PIICEJLVQHRZGT-UHFFFAOYSA-N Ethylenediamine Chemical compound NCCN PIICEJLVQHRZGT-UHFFFAOYSA-N 0.000 description 1
- 229910001218 Gallium arsenide Inorganic materials 0.000 description 1
- 239000002879 Lewis base Substances 0.000 description 1
- 229910003902 SiCl 4 Inorganic materials 0.000 description 1
- BLRPTPMANUNPDV-UHFFFAOYSA-N Silane Chemical compound [SiH4] BLRPTPMANUNPDV-UHFFFAOYSA-N 0.000 description 1
- NRTOMJZYCJJWKI-UHFFFAOYSA-N Titanium nitride Chemical compound [Ti]#N NRTOMJZYCJJWKI-UHFFFAOYSA-N 0.000 description 1
- IJVSOTYWOBVVQZ-UHFFFAOYSA-N [SiH3]N[SiH2]Cl Chemical compound [SiH3]N[SiH2]Cl IJVSOTYWOBVVQZ-UHFFFAOYSA-N 0.000 description 1
- 239000003570 air Substances 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 150000001412 amines Chemical class 0.000 description 1
- 229910003481 amorphous carbon Inorganic materials 0.000 description 1
- 229910021417 amorphous silicon Inorganic materials 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- 229910052785 arsenic Inorganic materials 0.000 description 1
- 239000002585 base Substances 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- UBAZGMLMVVQSCD-UHFFFAOYSA-N carbon dioxide;molecular oxygen Chemical compound O=O.O=C=O UBAZGMLMVVQSCD-UHFFFAOYSA-N 0.000 description 1
- 239000007833 carbon precursor Substances 0.000 description 1
- 239000003054 catalyst Substances 0.000 description 1
- 239000003638 chemical reducing agent Substances 0.000 description 1
- KOPOQZFJUQMUML-UHFFFAOYSA-N chlorosilane Chemical compound Cl[SiH3] KOPOQZFJUQMUML-UHFFFAOYSA-N 0.000 description 1
- 229910052804 chromium Inorganic materials 0.000 description 1
- 229910017052 cobalt Inorganic materials 0.000 description 1
- 239000010941 cobalt Substances 0.000 description 1
- GUTLYIVDDKVIGB-UHFFFAOYSA-N cobalt atom Chemical compound [Co] GUTLYIVDDKVIGB-UHFFFAOYSA-N 0.000 description 1
- 239000000356 contaminant Substances 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- LMGZGXSXHCMSAA-UHFFFAOYSA-N cyclodecane Chemical compound C1CCCCCCCCC1 LMGZGXSXHCMSAA-UHFFFAOYSA-N 0.000 description 1
- GPTJTTCOVDDHER-UHFFFAOYSA-N cyclononane Chemical compound C1CCCCCCCC1 GPTJTTCOVDDHER-UHFFFAOYSA-N 0.000 description 1
- WJTCGQSWYFHTAC-UHFFFAOYSA-N cyclooctane Chemical compound C1CCCCCCC1 WJTCGQSWYFHTAC-UHFFFAOYSA-N 0.000 description 1
- 239000004914 cyclooctane Substances 0.000 description 1
- 239000008367 deionised water Substances 0.000 description 1
- 229910021641 deionized water Inorganic materials 0.000 description 1
- 230000001627 detrimental effect Effects 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 239000003989 dielectric material Substances 0.000 description 1
- HPNMFZURTQLUMO-UHFFFAOYSA-N diethylamine Chemical compound CCNCC HPNMFZURTQLUMO-UHFFFAOYSA-N 0.000 description 1
- 229940043279 diisopropylamine Drugs 0.000 description 1
- 239000012153 distilled water Substances 0.000 description 1
- 238000005530 etching Methods 0.000 description 1
- 150000002170 ethers Chemical class 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 229910052732 germanium Inorganic materials 0.000 description 1
- GNPVGFCGXDBREM-UHFFFAOYSA-N germanium atom Chemical compound [Ge] GNPVGFCGXDBREM-UHFFFAOYSA-N 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 229910052736 halogen Inorganic materials 0.000 description 1
- 150000002367 halogens Chemical class 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 238000009616 inductively coupled plasma Methods 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 150000002500 ions Chemical class 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 150000007527 lewis bases Chemical group 0.000 description 1
- AUHZEENZYGFFBQ-UHFFFAOYSA-N mesitylene Substances CC1=CC(C)=CC(C)=C1 AUHZEENZYGFFBQ-UHFFFAOYSA-N 0.000 description 1
- 125000001827 mesitylenyl group Chemical group [H]C1=C(C(*)=C(C([H])=C1C([H])([H])[H])C([H])([H])[H])C([H])([H])[H] 0.000 description 1
- 229910021645 metal ion Inorganic materials 0.000 description 1
- 229910044991 metal oxide Inorganic materials 0.000 description 1
- 150000004706 metal oxides Chemical class 0.000 description 1
- 229910052752 metalloid Inorganic materials 0.000 description 1
- 150000002738 metalloids Chemical class 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 239000002135 nanosheet Substances 0.000 description 1
- JCXJVPUVTGWSNB-UHFFFAOYSA-N nitrogen dioxide Inorganic materials O=[N]=O JCXJVPUVTGWSNB-UHFFFAOYSA-N 0.000 description 1
- 229960001730 nitrous oxide Drugs 0.000 description 1
- TVMXDCGIABBOFY-UHFFFAOYSA-N octane Chemical compound CCCCCCCC TVMXDCGIABBOFY-UHFFFAOYSA-N 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 238000000059 patterning Methods 0.000 description 1
- 238000005498 polishing Methods 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 239000008213 purified water Substances 0.000 description 1
- UMJSCPRVCHMLSP-UHFFFAOYSA-N pyridine Natural products COC1=CC=CN=C1 UMJSCPRVCHMLSP-UHFFFAOYSA-N 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 229910000077 silane Inorganic materials 0.000 description 1
- HBMJWWWQQXIZIP-UHFFFAOYSA-N silicon carbide Chemical compound [Si+]#[C-] HBMJWWWQQXIZIP-UHFFFAOYSA-N 0.000 description 1
- 229910010271 silicon carbide Inorganic materials 0.000 description 1
- 239000005049 silicon tetrachloride Substances 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 125000006850 spacer group Chemical group 0.000 description 1
- 229910001256 stainless steel alloy Inorganic materials 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 238000000859 sublimation Methods 0.000 description 1
- 230000008022 sublimation Effects 0.000 description 1
- 238000006557 surface reaction Methods 0.000 description 1
- MZLGASXMSKOWSE-UHFFFAOYSA-N tantalum nitride Chemical compound [Ta]#N MZLGASXMSKOWSE-UHFFFAOYSA-N 0.000 description 1
- YBRBMKDOPFTVDT-UHFFFAOYSA-N tert-butylamine Chemical compound CC(C)(C)N YBRBMKDOPFTVDT-UHFFFAOYSA-N 0.000 description 1
- 150000003512 tertiary amines Chemical class 0.000 description 1
- 125000001302 tertiary amino group Chemical group 0.000 description 1
- 238000005979 thermal decomposition reaction Methods 0.000 description 1
- 238000000101 transmission high energy electron diffraction Methods 0.000 description 1
- KPFWGLUVXPQOHO-UHFFFAOYSA-N trichloro(silyl)silane Chemical compound [SiH3][Si](Cl)(Cl)Cl KPFWGLUVXPQOHO-UHFFFAOYSA-N 0.000 description 1
- KTVMZRXLMLBEFU-UHFFFAOYSA-N trichloro-[2-[dichloro(methyl)silyl]propan-2-yl]silane Chemical compound Cl[Si](C([Si](C)(Cl)Cl)(C)C)(Cl)Cl KTVMZRXLMLBEFU-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
- 238000009834 vaporization Methods 0.000 description 1
- 230000008016 vaporization Effects 0.000 description 1
Classifications
-
- 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
- C07—ORGANIC CHEMISTRY
- C07F—ACYCLIC, CARBOCYCLIC OR HETEROCYCLIC COMPOUNDS CONTAINING ELEMENTS OTHER THAN CARBON, HYDROGEN, HALOGEN, OXYGEN, NITROGEN, SULFUR, SELENIUM OR TELLURIUM
- C07F7/00—Compounds containing elements of Groups 4 or 14 of the Periodic Table
- C07F7/02—Silicon compounds
- C07F7/08—Compounds having one or more C—Si linkages
- C07F7/12—Organo silicon halides
-
- 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
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Abstract
Description
本出願は、2018年10月3日に提出された米国仮特許出願第62/740478号に対する優先権を主張していて、その出願の全体が参照によって本明細書に組み込まれる。
a.表面特徴を備える1つ又は複数の基材を反応器中に配置して、周囲温度~約600℃の1つ又は複数の温度に反応器を加熱して、任意選択で反応器を100torr以下の圧力に保持する工程;
b.1,1,1,3,3-ペンタクロロ-1,3-ジシラブタン、1,1,1,3,3-ペンタクロロ-2-メチル-1,3-ジシラブタン、1,1,1,3,3,3-ヘキサクロロ-2-メチル-1,3-ジシラプロパン、1,1,1,3,3,3-ヘキサクロロ-2,2-ジメチル-1,3-ジシラプロパン、1,1,1,3,3-ペンタクロロ-2,2-ジメチル-1,3-ジシラブタン、1,1,1,3,3-ペンタクロロ-2-エチル-1,3-ジシラブタン、1,1,1,3,3-ペンタクロロ-1,3-ジシラペンタン、1,1,1,3,3-ペンタクロロ-2-メチル-1,3-ジシラペンタン、1,1,1,3,3-ペンタクロロ-2,2-ジメチル-1,3-ジシラペンタン、1,1,1,3,3-ペンタクロロ-2-エチル-1,3-ジシラペンタン、1,1,1,3,3,5,5-へプタクロロ-1,3,5-トリシラヘキサン、1,1,1,5,5-ペンタクロロ-3,3-ジメチル-1,3,5-トリシラヘキサン、1,1,1,5,5-ペンタクロロ-1,3,5-トリシラヘキサン、2,2,4,6,6-ペンタクロロ-4-メチル-2,4,6-トリシラヘプタンからなる群から選択される、1つ又は2つのSi-C-Si結合を有する少なくとも1つのケイ素前駆体を反応器中に導入する工程;
c.不活性ガスでパージすることによって、任意の未反応のケイ素前駆体を除去する工程;
d.アンモニア源を含むプラズマを反応器中に供給して、表面と反応させて、窒化ケイ素膜又は炭素ドープされた窒化ケイ素膜を形成する工程;及び
e.不活性ガスでパージして、任意の反応副生成物を除去する工程
を含み、工程b~eは、所望の厚さの膜が堆積されるまで繰り返される。特定の実施態様において、本明細書において説明される方法は、
f.任意選択で、400~1000℃の温度における熱アニール若しくはスパイクアニール、又はUV光源で、窒化ケイ素膜又は炭素ドープされた窒化ケイ素膜を堆積後処理する工程であって、この又は他の実施態様において、膜堆積の間、又は堆積が完了した後のいずれかで、UV露光工程を行うことができる工程;
g.任意選択で、炭素ドープされた窒化ケイ素膜を、水素、不活性ガス又は窒素を含むプラズマに暴露して、膜の物理的特性のうち少なくとも1つを改善する堆積後処理を提供する工程
をさらに含む。
a.表面特徴を備える1つ又は複数の基材を反応器中に(例えば従来のALD反応器中に)配置して、周囲温度~約600℃の1つ又は複数の温度に反応器を加熱して、任意選択で反応器を100torr以下の圧力に保持する工程;
b.1,1,1,3,3-ペンタクロロ-1,3-ジシラブタン、1,1,1,3,3-ペンタクロロ-2-メチル-1,3-ジシラブタン、1,1,1,3,3,3-ヘキサクロロ-2-メチル-1,3-ジシラプロパン、1,1,1,3,3,3-ヘキサクロロ-2,2-ジメチル-1,3-ジシラプロパン、1,1,1,3,3-ペンタクロロ-2,2-ジメチル-1,3-ジシラブタン、1,1,1,3,3-ペンタクロロ-2-エチル-1,3-ジシラブタン、1,1,1,3,3-ペンタクロロ-1,3-ジシラペンタン、1,1,1,3,3-ペンタクロロ-2-メチル-1,3-ジシラペンタン、1,1,1,3,3-ペンタクロロ-2,2-ジメチル-1,3-ジシラペンタン、1,1,1,3,3-ペンタクロロ-2-エチル-1,3-ジシラペンタン、1,1,1,3,3,5,5-へプタクロロ-1,3,5-トリシラヘキサン、1,1,1,5,5-ペンタクロロ-3,3-ジメチル-1,3,5-トリシラヘキサン、1,1,1,5,5-ペンタクロロ-1,3,5-トリシラヘキサン、2,2,4,6,6-ペンタクロロ-4-メチル-2,4,6-トリシラヘプタンからなる群から選択される、1つ又は2つのSi-C-Si結合を有する少なくとも1つのケイ素前駆体を反応器中に導入する工程;
c.不活性ガスでパージする工程;
d.アンモニア源を含むプラズマを反応器中に供給して、表面と反応させて、窒化ケイ素膜又は炭素ドープされた窒化ケイ素膜を形成する工程;
e.不活性ガスでパージして、反応副生成物を除去する工程
を含み、工程b~eは、所望の厚さの膜が堆積されるまで繰り返される。特定の実施態様において、本明細書において説明される方法は、
f.任意選択で、400~1000℃の温度におけるスパイクアニール、又はUV光源で、窒化ケイ素膜又は炭素ドープされた窒化ケイ素膜を堆積後処理する工程であって、この又は他の実施態様において、膜堆積の間、又は堆積が完了した後のいずれかで、UV露光工程を行うことができる工程;
g.任意選択で、窒化ケイ素膜又は炭素ドープされた窒化ケイ素膜を、水素、不活性ガス又は窒素を含むプラズマに暴露して、膜の物理的特性のうち少なくとも1つを改善する堆積後処理を提供する工程
をさらに含む。
a.表面特徴を備える1つ又は複数の基材を反応器中に(例えば従来のALD反応器中に)配置して、周囲温度~約600℃の1つ又は複数の温度に反応器を加熱して、任意選択で反応器を100torr以下の圧力に保持する工程;
b.1,1,1,3,3-ペンタクロロ-1,3-ジシラブタン、1,1,1,3,3-ペンタクロロ-2-メチル-1,3-ジシラブタン、1,1,1,3,3,3-ヘキサクロロ-2-メチル-1,3-ジシラプロパン、1,1,1,3,3,3-ヘキサクロロ-2,2-ジメチル-1,3-ジシラプロパン、1,1,1,3,3-ペンタクロロ-2,2-ジメチル-1,3-ジシラブタン、1,1,1,3,3-ペンタクロロ-2-エチル-1,3-ジシラブタン、1,1,1,3,3-ペンタクロロ-1,3-ジシラペンタン、1,1,1,3,3-ペンタクロロ-2-メチル-1,3-ジシラペンタン、1,1,1,3,3-ペンタクロロ-2,2-ジメチル-1,3-ジシラペンタン、1,1,1,3,3-ペンタクロロ-2-エチル-1,3-ジシラペンタン、1,1,1,3,3,5,5-へプタクロロ-1,3,5-トリシラヘキサン、1,1,1,5,5-ペンタクロロ-3,3-ジメチル-1,3,5-トリシラヘキサン、1,1,1,5,5-ペンタクロロ-1,3,5-トリシラヘキサン、2,2,4,6,6-ペンタクロロ-4-メチル-2,4,6-トリシラヘプタンからなる群から選択される、1つ又は2つのSi-C-Si結合を有する少なくとも1つのケイ素前駆体を反応器中に導入する工程;
c.不活性ガスでパージする工程;
d.アンモニア源を含むプラズマを反応器中に供給して、表面と反応させて、窒化ケイ素膜を形成する工程;
e.不活性ガスでパージして、反応副生成物を除去する工程
を含み、工程b~eは、所望の厚さの膜が堆積されるまで繰り返される。特定の実施態様において、本明細書において説明される方法は、
f.インサイチュで、又は別のチャンバーにおいてのいずれかで、ほぼ周囲温度~1000℃又は約100℃~400℃の1つ又は複数の温度で、酸素源を用いて、窒化ケイ素膜又は炭素ドープされた窒化ケイ素膜を処理する堆積後処理を行って、窒化ケイ素膜又は炭素ドープされた窒化ケイ素膜を炭素ドープされた酸窒化ケイ素膜に変換する工程
をさらに含む。
a.表面特徴を備える1つ又は複数の基材を反応器中に配置して、周囲温度~約600℃の1つ又は複数の温度に反応器を加熱して、任意選択で反応器を100torr以下の圧力に保持する工程;
b.1,1,1,3,3-ペンタクロロ-1,3-ジシラブタン、1,1,1,3,3-ペンタクロロ-2-メチル-1,3-ジシラブタン、1,1,1,3,3,3-ヘキサクロロ-2-メチル-1,3-ジシラプロパン、1,1,1,3,3,3-ヘキサクロロ-2,2-ジメチル-1,3-ジシラプロパン、1,1,1,3,3-ペンタクロロ-2,2-ジメチル-1,3-ジシラブタン、1,1,1,3,3-ペンタクロロ-2-エチル-1,3-ジシラブタン、1,1,1,3,3-ペンタクロロ-1,3-ジシラペンタン、1,1,1,3,3-ペンタクロロ-2-メチル-1,3-ジシラペンタン、1,1,1,3,3-ペンタクロロ-2,2-ジメチル-1,3-ジシラペンタン、1,1,1,3,3-ペンタクロロ-2-エチル-1,3-ジシラペンタン、1,1,1,3,3,5,5-へプタクロロ-1,3,5-トリシラヘキサン、1,1,1,5,5-ペンタクロロ-3,3-ジメチル-1,3,5-トリシラヘキサン、1,1,1,5,5-ペンタクロロ-1,3,5-トリシラヘキサン、2,2,4,6,6-ペンタクロロ-4-メチル-2,4,6-トリシラヘプタンからなる群から選択される、1つ又は2つのSi-C-Si結合を有する少なくとも1つのケイ素前駆体を反応器中に導入する工程;
c.不活性ガスでパージすることによって、任意の未反応のケイ素前駆体を除去する工程;
d.アンモニア源を含む第一のプラズマを反応器中に供給して、表面と反応させて、窒化ケイ素膜又は炭素ドープされた窒化ケイ素膜を形成する工程;
e.不活性ガスでパージして、任意の反応副生成物を除去する工程
f.窒素源を含む第二のプラズマを反応器中に供給して、表面と反応させて、窒化ケイ素膜又は炭素ドープされた窒化ケイ素膜を形成する工程;
g.不活性ガスでパージして、任意の反応副生成物を除去する工程;
を含み、工程b~gは、所望の厚さの膜が堆積されるまで繰り返される。特定の実施態様において、本明細書において説明される方法はさらに含む。
a.表面特徴を備える1つ又は複数の基材を反応器中に配置して、周囲温度~約600℃の1つ又は複数の温度に反応器を加熱して、任意選択で反応器を100torr以下の圧力に保持する工程;
b.1,1,1,3,3-ペンタクロロ-1,3-ジシラブタン、1,1,1,3,3-ペンタクロロ-2-メチル-1,3-ジシラブタン、1,1,1,3,3,3-ヘキサクロロ-2-メチル-1,3-ジシラプロパン、1,1,1,3,3,3-ヘキサクロロ-2,2-ジメチル-1,3-ジシラプロパン、1,1,1,3,3-ペンタクロロ-2,2-ジメチル-1,3-ジシラブタン、1,1,1,3,3-ペンタクロロ-2-エチル-1,3-ジシラブタン、1,1,1,3,3-ペンタクロロ-1,3-ジシラペンタン、1,1,1,3,3-ペンタクロロ-2-メチル-1,3-ジシラペンタン、1,1,1,3,3-ペンタクロロ-2,2-ジメチル-1,3-ジシラペンタン、1,1,1,3,3-ペンタクロロ-2-エチル-1,3-ジシラペンタン、1,1,1,3,3,5,5-へプタクロロ-1,3,5-トリシラヘキサン、1,1,1,5,5-ペンタクロロ-3,3-ジメチル-1,3,5-トリシラヘキサン、1,1,1,5,5-ペンタクロロ-1,3,5-トリシラヘキサン、2,2,4,6,6-ペンタクロロ-4-メチル-2,4,6-トリシラヘプタンからなる群から選択される、1つ又は2つのSi-C-Si結合を有する少なくとも1つのケイ素前駆体を反応器中に導入する工程;
c.不活性ガスでパージすることによって、任意の未反応のケイ素前駆体を除去する工程;
d.窒素源を含む第一のプラズマを反応器中に供給して、表面と反応させて、窒化ケイ素膜又は炭素ドープされた窒化ケイ素膜を形成する工程;
e.不活性ガスでパージして、任意の反応副生成物を除去する工程
f.アンモニア源を含む第二のプラズマを反応器中に供給して、表面と反応させて、窒化ケイ素膜又は炭素ドープされた窒化ケイ素膜を形成する工程;
g.不活性ガスでパージして、任意の反応副生成物を除去する工程;
を含み、工程b~gは、所望の厚さの膜が堆積されるまで繰り返される。1つの実施態様において、基材は、1:9以上のアスペクト比及び180nm以下の隙間を有するパターントレンチを含む少なくとも1つの特徴を備える。
1torrのチャンバー圧力を有し、13.56MHzの直接プラズマを有するシャワーヘッド設計を備えるCN-1反応器中にシリコンウエハを装填した。ケイ素前駆体としての1,1,1,3,3-ペンタクロロ-1,3-ジシラブタンを、バブリング又は蒸気引き抜きを使用して反応器中に蒸気として輸送した。
a.基材を反応器中に提供し、基材を約300℃に加熱する
b.1,1,1,3,3-ペンタクロロ-1,3-ジシラブタンの蒸気を反応器に導入する
アルゴン流:前駆体コンテナを通って100sccm
パルス:2s
Ar流:1000sccm
c.パージする
アルゴン流:1000sccm
パージ時間:10s
d.アンモニアプラズマを導入する
アルゴン流:1000sccm
アンモニア流:300sccm
プラズマ電力:300W
パルス:15s
e.パージする
アルゴン流:1000sccm
パージ時間:5s
を使用した。工程b~eを1000サイクル繰り返して、58.66at%窒素、38.96at%ケイ素及び2.37at%酸素の組成を有する32nmの窒化ケイ素を提供した。塩素及び炭素はともに検出されなかった。屈折率は約1.9であった。
1torrのチャンバー圧力を有し、13.56MHzの直接プラズマを有するシャワーヘッド設計を備えるCN-1反応器中にシリコンウエハを装填した。1,1,1,3,3-ペンタクロロ-1,3-ジシラブタンを、バブリングを使用して反応器中に蒸気として輸送した。
a)基材を反応器中に提供し、基材を約400℃に加熱する
b)1,1,1,3,3-ペンタクロロ-1,3-ジシラブタンの蒸気を反応器に導入する
アルゴン流:前駆体コンテナを通って100sccm
パルス:2s
アルゴン:1000sccm
c)不活性ガスパージをする
アルゴン流:1000sccm
パージ時間:15s
d)アンモニアプラズマを導入する
アルゴン流:1000sccm
アンモニア流:50sccm
プラズマ電力:300W
パルス:10s
e)パージする
アルゴン流:1000sccm
パージ時間:10s
を使用した。工程b~eを1000サイクル繰り返して、58.30at%窒素、39.15at%ケイ素、2.55at%酸素の組成を有する26nmの窒化ケイ素を提供した。XPSによって測定した場合に、塩素及び炭素はともに検出されなかった。この実施例において得た膜の組成は、化学量論的な窒化ケイ素に近かった。屈折率は約1.9であった。
Claims (24)
- プラズマ強化ALDプロセスによって窒化ケイ素又は炭素ドープされた窒化ケイ素を形成するための方法であって、
a)表面特徴を備える基材を反応器中に提供し、約600℃以下の1つ又は複数の温度に反応器を加熱して、任意選択で前記反応器を100torr以下の圧力に保持する工程;
b)1つ又は2つのSi-C-Si結合を有し、かつ1,1,1,3,3,3-ヘキサクロロ-2-メチル-1,3-ジシラプロパン、1,1,1,3,3,3-ヘキサクロロ-2,2-ジメチル-1,3-ジシラプロパン、1,1,1,3,3-ペンタクロロ-1,3-ジシラブタン、1,1,1,3,3-ペンタクロロ-2-メチル-1,3-ジシラブタン、1,1,1,3,3-ペンタクロロ-2,2-ジメチル-1,3-ジシラブタン、1,1,1,3,3-ペンタクロロ-2-エチル-1,3-ジシラブタン、1,1,1,3,3-ペンタクロロ-1,3-ジシラペンタン、1,1,1,3,3-ペンタクロロ-2-メチル-1,3-ジシラペンタン、1,1,1,3,3-ペンタクロロ-2,2-ジメチル-1,3-ジシラペンタン、1,1,1,3,3-ペンタクロロ-2-エチル-1,3-ジシラペンタン、1,1,1,3,3,5,5-へプタクロロ-1,3,5-トリシラヘキサン、1,1,1,5,5-ペンタクロロ-3,3-ジメチル-1,3,5-トリシラヘキサン、1,1,1,5,5-ペンタクロロ-1,3,5-トリシラヘキサン、2,2,4,6,6-ペンタクロロ-4-メチル-2,4,6-トリシラヘプタンからなる群から選択される少なくとも1つのケイ素前駆体を前記反応器中に導入する工程であって、それによって前記ケイ素前駆体が前記基材の前記表面特徴の少なくとも一部で反応して、化学吸着された層を提供する工程;
c)不活性ガスを使用して、前記反応器から任意の未反応のケイ素前駆体及び/又は任意の反応副生成物をパージする工程;
d)アンモニア源を含むプラズマを前記反応器中に供給して、前記化学吸着された層と反応させて、窒化ケイ素膜を形成する工程;並びに
e)不活性ガスを用いて、前記反応器から任意のさらなる反応副生成物をパージする工程
を含み、前記工程b~eが、所望の厚さの前記窒化ケイ素膜が堆積されるまで繰り返される、方法。 - 前記窒化ケイ素膜が炭素ドープされた窒化ケイ素膜である、請求項1に記載の方法。
- 400~1000℃の温度におけるスパイクアニールで前記窒化ケイ素膜を処理する工程をさらに含む、請求項1に記載の方法。
- 前記窒化ケイ素膜の堆積の間か、又は前記窒化ケイ素膜の堆積の後のいずれかで、UV光源に前記窒化ケイ素膜を暴露する工程をさらに含む、請求項1に記載の方法。
- 水素、不活性ガス、窒素及びそれらの組み合わせからなる群から選択される1つ又は複数のガスを含むプラズマに前記窒化ケイ素膜を暴露する工程をさらに含む、請求項1に記載の方法。
- インサイチュで、又は前記反応器とは別のチャンバーにおいてのいずれかで、周囲温度~1000℃の1つ又は複数の温度で酸素源を用いて前記窒化ケイ素膜を処理して、前記窒化ケイ素を酸窒化ケイ素膜に変換する処理工程をさらに含む、請求項1に記載の方法。
- 前記窒化ケイ素膜が炭素ドープされた窒化ケイ素膜であり、酸素源を用いて前記窒化ケイ素膜を処理する前記処理工程が、前記炭素ドープされた窒化ケイ素を炭素ドープされた酸窒化ケイ素膜に変換する、請求項6に記載の方法。
- 約6以下の誘電率(k)と、X線光電子分光法によって測定した場合に約5原子量%以下の炭素含有量とを有する、請求項1に記載の方法によって形成された膜。
- X線光電子分光法によって測定した場合に約5原子量%以下の炭素含有量を有する、請求項8に記載の膜。
- X線光電子分光法によって測定した場合に約3原子量%以下の炭素含有量を有する、請求項9に記載の膜。
- X線光電子分光法によって測定した場合に約2原子量%以下の炭素含有量を有する、請求項10に記載の膜。
- X線光電子分光法によって測定した場合に約1原子量%以下の炭素含有量を有する、請求項11に記載の膜。
- 約300~約1000℃の温度で、前記窒化ケイ素膜又は炭素ドープされた窒化ケイ素膜に熱アニールを行う工程をさらに含む、請求項1に記載の方法。
- 約25℃~約600℃の温度で、不活性ガスプラズマ、水素/不活性プラズマ又は窒素プラズマを用いて、前記窒化ケイ素膜にプラズマ処理を行う工程をさらに含む、請求項1に記載の方法。
- 約25℃~約600℃の温度で、不活性ガスプラズマ、水素/不活性プラズマ又は窒素プラズマを用いて、前記炭素ドープされた窒化ケイ素膜にプラズマ処理を行う工程をさらに含む、請求項2に記載の方法。
- 約25℃~約600℃の温度で、不活性ガスプラズマ、水素/不活性プラズマ又は窒素プラズマを用いて、前記酸窒化ケイ素膜にプラズマ処理を行う工程をさらに含む、請求項6に記載の方法。
- 約25℃~約600℃の温度で、不活性ガスプラズマ、水素/不活性プラズマ又は窒素プラズマを用いて、前記炭素ドープされた酸窒化ケイ素膜にプラズマ処理を行う工程をさらに含む、請求項7に記載の方法。
- プラズマ強化ALDプロセスによって窒化ケイ素又は炭素ドープされた窒化ケイ素を形成するための方法であって、
a)表面特徴を備える基材を反応器中に提供する工程;
b)1つ又は2つのSi-C-Si結合を有し、かつ1,1,1,3,3,3-ヘキサクロロ-2-メチル-1,3-ジシラプロパン、1,1,1,3,3,3-ヘキサクロロ-2,2-ジメチル-1,3-ジシラプロパン、1,1,1,3,3-ペンタクロロ-1,3-ジシラブタン、1,1,1,3,3-ペンタクロロ-2-メチル-1,3-ジシラブタン、1,1,1,3,3-ペンタクロロ-2,2-ジメチル-1,3-ジシラブタン、1,1,1,3,3-ペンタクロロ-2-エチル-1,3-ジシラブタン、1,1,1,3,3-ペンタクロロ-1,3-ジシラペンタン、1,1,1,3,3-ペンタクロロ-2-メチル-1,3-ジシラペンタン、1,1,1,3,3-ペンタクロロ-2,2-ジメチル-1,3-ジシラペンタン、1,1,1,3,3-ペンタクロロ-2-エチル-1,3-ジシラペンタン、1,1,1,3,3,5,5-へプタクロロ-1,3,5-トリシラヘキサン、1,1,1,5,5-ペンタクロロ-3,3-ジメチル-1,3,5-トリシラヘキサン、1,1,1,5,5-ペンタクロロ-1,3,5-トリシラヘキサン及び2,2,4,6,6-ペンタクロロ-4-メチル-2,4,6-トリシラヘプタンからなる群から選択される少なくとも1つのケイ素前駆体を前記反応器中に導入する工程であって、それによって前記ケイ素前駆体が前記基材の前記表面特徴の少なくとも一部で反応して、化学吸着された層を提供する工程;
c)不活性ガスを使用して、前記反応器から任意の未反応のケイ素前駆体及び/又は任意の反応副生成物をパージする工程;
d)第一のプラズマ源を前記反応器中に供給して、前記化学吸着された層と反応させて、任意選択で炭素ドープされた、窒化ケイ素膜を形成する工程;
e)不活性ガスを使用して、前記反応器から任意のさらなる反応副生成物をパージする工程;
f)第二のプラズマ源を前記反応器中に供給して、さらに反応させて、任意選択で炭素ドープされた、窒化ケイ素膜を形成する工程;
g)不活性ガスを使用して、前記反応器から任意のさらなる反応副生成物をパージする工程
を含み、前記工程b~gが、任意選択で炭素ドープされた、前記窒化ケイ素膜が所望の厚さに到達するまで繰り返され、前記反応器が、約25℃~約600℃の1つ又は複数の温度に保持される、方法。 - 前記プラズマがアンモニア源を含むプラズマであり、前記第二のプラズマが窒素源を含むプラズマである、請求項18に記載の方法。
- 前記第一のプラズマが窒素源を含むプラズマであり、前記第二のプラズマがアンモニア源を含むプラズマである、請求項18に記載の方法。
- 1つ又は2つのSi-C-Si結合を有し、かつ1,1,1,3,3,3-ヘキサクロロ-2-メチル-1,3-ジシラプロパン、1,1,1,3,3,3-ヘキサクロロ-2,2-ジメチル-1,3-ジシラプロパン、1,1,1,3,3-ペンタクロロ-1,3-ジシラブタン、1,1,1,3,3-ペンタクロロ-2-メチル-1,3-ジシラブタン、1,1,1,3,3-ペンタクロロ-2,2-ジメチル-1,3-ジシラブタン、1,1,1,3,3-ペンタクロロ-2-エチル-1,3-ジシラブタン、1,1,1,3,3-ペンタクロロ-1,3-ジシラペンタン、1,1,1,3,3-ペンタクロロ-2-メチル-1,3-ジシラペンタン、1,1,1,3,3-ペンタクロロ-2,2-ジメチル-1,3-ジシラペンタン、1,1,1,3,3-ペンタクロロ-2-エチル-1,3-ジシラペンタン、1,1,1,3,3,5,5-へプタクロロ-1,3,5-トリシラヘキサン、1,1,1,5,5-ペンタクロロ-3,3-ジメチル-1,3,5-トリシラヘキサン、1,1,1,5,5-ペンタクロロ-1,3,5-トリシラヘキサン及び2,2,4,6,6-ペンタクロロ-4-メチル-2,4,6-トリシラヘプタンからなる群から選択される少なくとも1つのケイ素前駆体を含む組成物を収容するステンレス鋼コンテナ。
- ヘリウム、アルゴン、窒素及びそれらの組み合わせからなる群から選択される不活性ヘッドスペースガスをさらに収容する、請求項21に記載のステンレス鋼コンテナ。
- 半導体産業又はディスプレイ用途のために適した、かつ請求項1に記載の方法を使用して堆積された窒化ケイ素膜又は炭素ドープされた窒化ケイ素膜。
- 半導体産業又はディスプレイ用途のために適した、かつ請求項18に記載の方法を使用して堆積された窒化ケイ素膜又は炭素ドープされた窒化ケイ素膜。
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