KR19990036717A - 비스(3차부틸아미노)실란으로부터 얻은 질화규소 - Google Patents
비스(3차부틸아미노)실란으로부터 얻은 질화규소 Download PDFInfo
- Publication number
- KR19990036717A KR19990036717A KR1019980040875A KR19980040875A KR19990036717A KR 19990036717 A KR19990036717 A KR 19990036717A KR 1019980040875 A KR1019980040875 A KR 1019980040875A KR 19980040875 A KR19980040875 A KR 19980040875A KR 19990036717 A KR19990036717 A KR 19990036717A
- Authority
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- South Korea
- Prior art keywords
- silane
- silicon nitride
- substrate
- deposition
- ammonia
- Prior art date
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- 229910052581 Si3N4 Inorganic materials 0.000 title claims abstract description 38
- HQVNEWCFYHHQES-UHFFFAOYSA-N silicon nitride Chemical compound N12[Si]34N5[Si]62N3[Si]51N64 HQVNEWCFYHHQES-UHFFFAOYSA-N 0.000 title claims abstract description 38
- VYIRVGYSUZPNLF-UHFFFAOYSA-N n-(tert-butylamino)silyl-2-methylpropan-2-amine Chemical compound CC(C)(C)N[SiH2]NC(C)(C)C VYIRVGYSUZPNLF-UHFFFAOYSA-N 0.000 title description 23
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 claims abstract description 56
- 238000000034 method Methods 0.000 claims abstract description 44
- 229910021529 ammonia Inorganic materials 0.000 claims abstract description 28
- 238000004518 low pressure chemical vapour deposition Methods 0.000 claims abstract description 24
- BLRPTPMANUNPDV-UHFFFAOYSA-N Silane Chemical compound [SiH4] BLRPTPMANUNPDV-UHFFFAOYSA-N 0.000 claims abstract description 11
- 229910000077 silane Inorganic materials 0.000 claims abstract description 11
- 238000000151 deposition Methods 0.000 claims description 47
- 238000006243 chemical reaction Methods 0.000 claims description 27
- 239000000758 substrate Substances 0.000 claims description 25
- 229910052710 silicon Inorganic materials 0.000 claims description 16
- 239000010703 silicon Substances 0.000 claims description 15
- 238000005229 chemical vapour deposition Methods 0.000 claims description 7
- 238000010438 heat treatment Methods 0.000 claims description 4
- 239000004065 semiconductor Substances 0.000 abstract description 4
- 239000010408 film Substances 0.000 description 57
- 230000008021 deposition Effects 0.000 description 38
- 239000002243 precursor Substances 0.000 description 31
- 229910052799 carbon Inorganic materials 0.000 description 22
- 230000008569 process Effects 0.000 description 22
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 21
- 235000012431 wafers Nutrition 0.000 description 18
- NLXLAEXVIDQMFP-UHFFFAOYSA-N Ammonia chloride Chemical compound [NH4+].[Cl-] NLXLAEXVIDQMFP-UHFFFAOYSA-N 0.000 description 16
- 239000007789 gas Substances 0.000 description 15
- 239000000376 reactant Substances 0.000 description 15
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 14
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 12
- MROCJMGDEKINLD-UHFFFAOYSA-N dichlorosilane Chemical compound Cl[SiH2]Cl MROCJMGDEKINLD-UHFFFAOYSA-N 0.000 description 11
- 229910018540 Si C Inorganic materials 0.000 description 10
- 229910010271 silicon carbide Inorganic materials 0.000 description 10
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 9
- 239000000460 chlorine Substances 0.000 description 9
- 238000011109 contamination Methods 0.000 description 9
- 238000006557 surface reaction Methods 0.000 description 9
- 235000019270 ammonium chloride Nutrition 0.000 description 8
- 238000004519 manufacturing process Methods 0.000 description 8
- ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 description 7
- 229910052801 chlorine Inorganic materials 0.000 description 7
- 239000003446 ligand Substances 0.000 description 7
- 238000009792 diffusion process Methods 0.000 description 6
- 239000012535 impurity Substances 0.000 description 6
- 229910052757 nitrogen Inorganic materials 0.000 description 6
- 239000000126 substance Substances 0.000 description 6
- 230000008901 benefit Effects 0.000 description 5
- 239000001257 hydrogen Substances 0.000 description 5
- 229910052739 hydrogen Inorganic materials 0.000 description 5
- 235000012239 silicon dioxide Nutrition 0.000 description 5
- -1 silicon nitrides Chemical class 0.000 description 5
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 4
- VQTUBCCKSQIDNK-UHFFFAOYSA-N Isobutene Chemical group CC(C)=C VQTUBCCKSQIDNK-UHFFFAOYSA-N 0.000 description 4
- 239000006227 byproduct Substances 0.000 description 4
- 239000000463 material Substances 0.000 description 4
- 239000012071 phase Substances 0.000 description 4
- 239000000377 silicon dioxide Substances 0.000 description 4
- 229910007991 Si-N Inorganic materials 0.000 description 3
- 229910006294 Si—N Inorganic materials 0.000 description 3
- 230000015572 biosynthetic process Effects 0.000 description 3
- 125000006309 butyl amino group Chemical group 0.000 description 3
- 239000000356 contaminant Substances 0.000 description 3
- 238000005137 deposition process Methods 0.000 description 3
- 239000003989 dielectric material Substances 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 238000002474 experimental method Methods 0.000 description 3
- 238000011068 loading method Methods 0.000 description 3
- SSCVMVQLICADPI-UHFFFAOYSA-N n-methyl-n-[tris(dimethylamino)silyl]methanamine Chemical compound CN(C)[Si](N(C)C)(N(C)C)N(C)C SSCVMVQLICADPI-UHFFFAOYSA-N 0.000 description 3
- MWUXSHHQAYIFBG-UHFFFAOYSA-N nitrogen oxide Inorganic materials O=[N] MWUXSHHQAYIFBG-UHFFFAOYSA-N 0.000 description 3
- FZHAPNGMFPVSLP-UHFFFAOYSA-N silanamine Chemical class [SiH3]N FZHAPNGMFPVSLP-UHFFFAOYSA-N 0.000 description 3
- 239000010409 thin film Substances 0.000 description 3
- CJTIMUNRDDCOMT-UHFFFAOYSA-N 2-[diamino(tert-butyl)silyl]-2-methylpropane Chemical compound CC(C)(C)[Si](N)(N)C(C)(C)C CJTIMUNRDDCOMT-UHFFFAOYSA-N 0.000 description 2
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 description 2
- 230000004913 activation Effects 0.000 description 2
- 238000001994 activation Methods 0.000 description 2
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 2
- 230000004888 barrier function Effects 0.000 description 2
- 125000000484 butyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])C([H])([H])[H] 0.000 description 2
- 230000015556 catabolic process Effects 0.000 description 2
- 238000004140 cleaning Methods 0.000 description 2
- 150000001875 compounds Chemical class 0.000 description 2
- UCXUKTLCVSGCNR-UHFFFAOYSA-N diethylsilane Chemical compound CC[SiH2]CC UCXUKTLCVSGCNR-UHFFFAOYSA-N 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000010574 gas phase reaction Methods 0.000 description 2
- 239000011261 inert gas Substances 0.000 description 2
- 239000012212 insulator Substances 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- KGLQTFXQVOYASS-UHFFFAOYSA-N n-[ethyl-bis(ethylamino)silyl]ethanamine Chemical compound CCN[Si](CC)(NCC)NCC KGLQTFXQVOYASS-UHFFFAOYSA-N 0.000 description 2
- 229910052760 oxygen Inorganic materials 0.000 description 2
- 239000001301 oxygen Substances 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 238000000197 pyrolysis Methods 0.000 description 2
- 238000005389 semiconductor device fabrication Methods 0.000 description 2
- 238000000926 separation method Methods 0.000 description 2
- 150000004756 silanes Chemical class 0.000 description 2
- 238000001179 sorption measurement Methods 0.000 description 2
- 241000894007 species Species 0.000 description 2
- YBRBMKDOPFTVDT-UHFFFAOYSA-N tert-butylamine Chemical compound CC(C)(C)N YBRBMKDOPFTVDT-UHFFFAOYSA-N 0.000 description 2
- VUGMARFZKDASCX-UHFFFAOYSA-N 2-methyl-N-silylpropan-2-amine Chemical class CC(C)(C)N[SiH3] VUGMARFZKDASCX-UHFFFAOYSA-N 0.000 description 1
- NFPGPKWIEOUYMD-UHFFFAOYSA-N 2-methyl-n-tris(tert-butylamino)silylpropan-2-amine Chemical class CC(C)(C)N[Si](NC(C)(C)C)(NC(C)(C)C)NC(C)(C)C NFPGPKWIEOUYMD-UHFFFAOYSA-N 0.000 description 1
- FSRCZBPHOBNKTL-UHFFFAOYSA-N C(C)(C)(C)C(CCC)[SiH2]C(CCC)C(C)(C)C Chemical compound C(C)(C)(C)C(CCC)[SiH2]C(CCC)C(C)(C)C FSRCZBPHOBNKTL-UHFFFAOYSA-N 0.000 description 1
- 238000001157 Fourier transform infrared spectrum Methods 0.000 description 1
- YVQRICZYVAAUML-UHFFFAOYSA-N N-tert-butyl-2-methyl-N-silylpropan-2-amine Chemical compound CC(C)(C)N([SiH3])C(C)(C)C YVQRICZYVAAUML-UHFFFAOYSA-N 0.000 description 1
- 229910004298 SiO 2 Inorganic materials 0.000 description 1
- 150000003973 alkyl amines Chemical class 0.000 description 1
- 150000001412 amines Chemical class 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- 239000003963 antioxidant agent Substances 0.000 description 1
- 230000003078 antioxidant effect Effects 0.000 description 1
- 229910052786 argon Inorganic materials 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- HQABUPZFAYXKJW-UHFFFAOYSA-N butan-1-amine Chemical compound CCCCN HQABUPZFAYXKJW-UHFFFAOYSA-N 0.000 description 1
- VPZDAHBNTYZYHC-UHFFFAOYSA-N chlorosilylamine Chemical compound N[SiH2]Cl VPZDAHBNTYZYHC-UHFFFAOYSA-N 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- 239000012141 concentrate Substances 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 125000005265 dialkylamine group Chemical group 0.000 description 1
- KSFBTBXTZDJOHO-UHFFFAOYSA-N diaminosilicon Chemical compound N[Si]N KSFBTBXTZDJOHO-UHFFFAOYSA-N 0.000 description 1
- 239000003085 diluting agent Substances 0.000 description 1
- JTGAUXSVQKWNHO-UHFFFAOYSA-N ditert-butylsilicon Chemical compound CC(C)(C)[Si]C(C)(C)C JTGAUXSVQKWNHO-UHFFFAOYSA-N 0.000 description 1
- 239000002019 doping agent Substances 0.000 description 1
- 230000004907 flux Effects 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 125000000959 isobutyl group Chemical group [H]C([H])([H])C([H])(C([H])([H])[H])C([H])([H])* 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 239000012528 membrane Substances 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- OWKFQWAGPHVFRF-UHFFFAOYSA-N n-(diethylaminosilyl)-n-ethylethanamine Chemical compound CCN(CC)[SiH2]N(CC)CC OWKFQWAGPHVFRF-UHFFFAOYSA-N 0.000 description 1
- OOXOBWDOWJBZHX-UHFFFAOYSA-N n-(dimethylaminosilyl)-n-methylmethanamine Chemical compound CN(C)[SiH2]N(C)C OOXOBWDOWJBZHX-UHFFFAOYSA-N 0.000 description 1
- 150000004767 nitrides Chemical class 0.000 description 1
- 150000001282 organosilanes Chemical class 0.000 description 1
- NFHFRUOZVGFOOS-UHFFFAOYSA-N palladium;triphenylphosphane Chemical compound [Pd].C1=CC=CC=C1P(C=1C=CC=CC=1)C1=CC=CC=C1.C1=CC=CC=C1P(C=1C=CC=CC=1)C1=CC=CC=C1.C1=CC=CC=C1P(C=1C=CC=CC=1)C1=CC=CC=C1.C1=CC=CC=C1P(C=1C=CC=CC=1)C1=CC=CC=C1 NFHFRUOZVGFOOS-UHFFFAOYSA-N 0.000 description 1
- 230000037361 pathway Effects 0.000 description 1
- 238000000623 plasma-assisted chemical vapour deposition Methods 0.000 description 1
- 230000010287 polarization Effects 0.000 description 1
- 229910021420 polycrystalline silicon Inorganic materials 0.000 description 1
- 239000002244 precipitate Substances 0.000 description 1
- 238000001556 precipitation Methods 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
- 239000010453 quartz Substances 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 238000009790 rate-determining step (RDS) Methods 0.000 description 1
- 229910021332 silicide Inorganic materials 0.000 description 1
- FVBUAEGBCNSCDD-UHFFFAOYSA-N silicide(4-) Chemical compound [Si-4] FVBUAEGBCNSCDD-UHFFFAOYSA-N 0.000 description 1
- 239000012686 silicon precursor Substances 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
- 125000006318 tert-butyl amino group Chemical group [H]N(*)C(C([H])([H])[H])(C([H])([H])[H])C([H])([H])[H] 0.000 description 1
- 125000000999 tert-butyl group Chemical group [H]C([H])([H])C(*)(C([H])([H])[H])C([H])([H])[H] 0.000 description 1
- 150000003512 tertiary amines Chemical group 0.000 description 1
- 238000007725 thermal activation Methods 0.000 description 1
- 238000002230 thermal chemical vapour deposition Methods 0.000 description 1
- 231100000331 toxic Toxicity 0.000 description 1
- 230000002588 toxic effect Effects 0.000 description 1
- GIRKRMUMWJFNRI-UHFFFAOYSA-N tris(dimethylamino)silicon Chemical compound CN(C)[Si](N(C)C)N(C)C GIRKRMUMWJFNRI-UHFFFAOYSA-N 0.000 description 1
- 238000007740 vapor deposition Methods 0.000 description 1
- 239000012808 vapor phase Substances 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C16/00—Chemical coating by decomposition of gaseous compounds, without leaving reaction products of surface material in the coating, i.e. chemical vapour deposition [CVD] processes
- C23C16/22—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
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L21/00—Processes or apparatus adapted for the manufacture or treatment of semiconductor or solid state devices or of parts thereof
- H01L21/02—Manufacture or treatment of semiconductor devices or of parts thereof
- H01L21/02104—Forming layers
- H01L21/02107—Forming insulating materials on a substrate
- H01L21/02109—Forming insulating materials on a substrate characterised by the type of layer, e.g. type of material, porous/non-porous, pre-cursors, mixtures or laminates
- H01L21/02205—Forming insulating materials on a substrate characterised by the type of layer, e.g. type of material, porous/non-porous, pre-cursors, mixtures or laminates the layer being characterised by the precursor material for deposition
- H01L21/02208—Forming insulating materials on a substrate characterised by the type of layer, e.g. type of material, porous/non-porous, pre-cursors, mixtures or laminates the layer being characterised by the precursor material for deposition the precursor containing a compound comprising Si
- H01L21/02219—Forming insulating materials on a substrate characterised by the type of layer, e.g. type of material, porous/non-porous, pre-cursors, mixtures or laminates the layer being characterised by the precursor material for deposition the precursor containing a compound comprising Si the compound comprising silicon and nitrogen
- H01L21/02222—Forming insulating materials on a substrate characterised by the type of layer, e.g. type of material, porous/non-porous, pre-cursors, mixtures or laminates the layer being characterised by the precursor material for deposition the precursor containing a compound comprising Si the compound comprising silicon and nitrogen the compound being a silazane
-
- 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
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L21/00—Processes or apparatus adapted for the manufacture or treatment of semiconductor or solid state devices or of parts thereof
- H01L21/02—Manufacture or treatment of semiconductor devices or of parts thereof
- H01L21/02104—Forming layers
- H01L21/02107—Forming insulating materials on a substrate
- H01L21/02109—Forming insulating materials on a substrate characterised by the type of layer, e.g. type of material, porous/non-porous, pre-cursors, mixtures or laminates
- H01L21/02112—Forming insulating materials on a substrate characterised by the type of layer, e.g. type of material, porous/non-porous, pre-cursors, mixtures or laminates characterised by the material of the layer
- H01L21/02123—Forming insulating materials on a substrate characterised by the type of layer, e.g. type of material, porous/non-porous, pre-cursors, mixtures or laminates characterised by the material of the layer the material containing silicon
- H01L21/0217—Forming insulating materials on a substrate characterised by the type of layer, e.g. type of material, porous/non-porous, pre-cursors, mixtures or laminates characterised by the material of the layer the material containing silicon the material being a silicon nitride not containing oxygen, e.g. SixNy or SixByNz
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L21/00—Processes or apparatus adapted for the manufacture or treatment of semiconductor or solid state devices or of parts thereof
- H01L21/02—Manufacture or treatment of semiconductor devices or of parts thereof
- H01L21/02104—Forming layers
- H01L21/02107—Forming insulating materials on a substrate
- H01L21/02225—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
-
- 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 at least one potential-jump barrier or surface barrier, e.g. PN junction, depletion layer or carrier concentration layer
- H01L21/18—Manufacture or treatment of semiconductor devices or of parts thereof the devices having at least one potential-jump barrier or surface barrier, e.g. PN junction, depletion layer or carrier concentration layer the devices having semiconductor bodies comprising elements of Group IV of the Periodic System 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
Abstract
Description
전구체 | 증기압(Torr,약 ℃) | 증착 온도(℃) | 전구체 및 필름 특성 |
SiH4+HN3 | 상온에서 기체 | 200∼400플라즈마 방법 | 인화성 기체. 기체상 반응. 저온에서 규소 농축. 필름은 수소를 포함할 수 있다. |
Cl2SiH2+NH3 | 상온에서 기체 | >750 | 부식성 기체. 직접적인 Si-Cl 결합. 염소 오염.부산물로서 염화암모늄. |
(C2H5)2SiH2+NH3 | 20℃에서 100 | 650∼725 | 불량한 균일성. 직접적인 Si-C 결합. 직접적인 Si-Cl 결합. >2%의 필름중 탄소 불순물. 케이지 보트(cage boat) 및 온도 경사가 필요할 수도 있음 |
(t-C4H9)2SiH2+NH3 | 20℃에서 20.5 | 600∼700 | 직접적인 Si-C 결합. 필름중 탄소 함유(10 원자%). |
[(CH3)2N]3SiR+NH3R=H 또는 CH3 | 25℃에서 16 | 700∼1000 | 직접적인 Si-C 결합. 탄소가 >2%로 필름에 함유되고 높은 암모니아:공급원(30:1)의 비율을 요함. >5%의 불량한 균일성. |
전구체 | 증기압(Torr,약 ℃) | 증착 온도(℃) | 전구체 및 필름 특성 |
(t-C4H9NH)2SiH2(본 발명의 전구체) | 45℃에서 7.5 | 500∼1000 | Si-C 결합이 없음, 탄소 오염 없음, 우수한 균일성, 및 높은 증착 속도. |
(t-C4H9)2Si(NH2)2+NH3 | 39℃에서 2.1 | 600∼700 | 직접적인 Si-C결합. 필름중 탄소 오염. |
전구체 | 화학식 | 몰(중량) | 증기 | |
증기압 | T℃ | |||
비스(디메틸아미노)실란 | H2Si(N[CH3]2)2 | 118.25 | >10 | 27 |
트리스(디메틸아미노)실란 | HSi(N[CH3]2)3 | 161.32 | 8 | 29 |
비스(디에틸아미노)실란 | H2Si(N[C2H5]2)2 | 174.36 | 14 | 65.4 |
비스(t-부틸아미노)실란 | H2Si(NHC4H9)2 | 174.36 | 7.5 | 45 |
디-t-부틸디아미노실란 | (C4H9)2Si(NH2)2 | 174.36 | 2.1 | 39 |
트리스(에틸아미노)에틸실란 | C2H5Si(NHC2H5)3 | 189.38 | 54 | |
테트라키스(디메틸아미노)실란 | Si(N[CH3]2)4 | 204.39 | 7.3 | 51 |
공급원 sccm | 온도℃ | 압력mTorr | NH3/공급원 | 증착 속도 ang/분 | 굴절율 |
22.0 | 600650 | 600 | 6.0 | 5.5 | 2.00 |
21.621.621.6 | 600650700 | 600600600 | 6.06.06.0 | 01222 | 1.751.89 |
48.338.6 | 550600 | 300500 | 00 | 1516 | 1.652.00 |
22.022.022.0 | 600650700 | 600600600 | 6.06.06.0 | 1458124 | 1.961.951.96 |
공급원 sccm | 온도℃ | 압력mTorr | NH3/공급원 | 증착 속도 ang/분 | 굴절율 |
21.018.626.021.0 | 600650650700 | 600600600600 | 6.37.15.16.3 | 124357130 | 1.871.931.941.99 |
11.011.023.011.023.0 | 600650650700700 | 600600600600600 | 4.04.06.04.06.0 | 9304762105 | 1.731.871.881.931.94 |
34.3 | 600 | 500 | 0 | 0 |
Claims (8)
- 암모니아와 하기 화학식 1로 표시되는 실란을 사용하여 기판상에 질화규소를 저압 화학 증착시키는 방법.화학식 1(t-C4H9NH)2SiH2
- 제1항에 있어서, 기판의 온도 범위는 약 500℃∼800℃인 방법.
- 제1항에 있어서, 압력의 범위는 약 20 mTorr∼2 Torr인 방법.
- 제1항에 있어서, 암모니아:실란의 몰비는 약 2:1 보다 큰 방법.
- 제1항에 있어서, 기판은 규소인 방법.
- 제1항에 있어서, 기판은 전자 장치인 방법.
- 제1항에 있어서, 기판은 평면 패널 디스플레이인 방법.
- a) 반응 구간에서 약 500℃∼800℃의 온도로 기판을 가열하는 단계;b) 반응 구간에서 압력이 약 20 mTorr∼2 Torr인 진공중에 기판을 유지하는 단계;c) 화학식 (t-C4H9NH)2SiH2인 실란과 암모니아를 반응 구간내로 도입하는 단계; 및d) a) 내지 c)의 조건을 충분히 유지하여 질화규소의 필름을 기판상에 증착시키는 단계를 포함하는 것을 특징으로 하는, 반응 구간내에 질화규소의 저온 화학 증착.
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
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US8/942,996 | 1997-10-02 | ||
US08/942,996 | 1997-10-02 | ||
US08/942,996 US5874368A (en) | 1997-10-02 | 1997-10-02 | Silicon nitride from bis(tertiarybutylamino)silane |
Publications (2)
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KR19990036717A true KR19990036717A (ko) | 1999-05-25 |
KR100318978B1 KR100318978B1 (ko) | 2002-11-18 |
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KR19980040875A KR100318978B1 (ko) | 1997-10-02 | 1998-09-30 | 비스(3차부틸아미노)실란을이용한질화규소의화학증착방법 |
Country Status (8)
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US (1) | US5874368A (ko) |
EP (1) | EP0906965B1 (ko) |
JP (1) | JP2962417B2 (ko) |
KR (1) | KR100318978B1 (ko) |
DE (1) | DE69834609T2 (ko) |
HK (1) | HK1017390A1 (ko) |
SG (1) | SG66493A1 (ko) |
TW (1) | TW507017B (ko) |
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EP0906965B1 (en) | 2006-05-24 |
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KR100318978B1 (ko) | 2002-11-18 |
DE69834609D1 (en) | 2006-06-29 |
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JPH11172439A (ja) | 1999-06-29 |
EP0906965A2 (en) | 1999-04-07 |
US5874368A (en) | 1999-02-23 |
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