KR100741442B1 - 반도체 장치 및 반도체 장치의 제조 방법 - Google Patents
반도체 장치 및 반도체 장치의 제조 방법 Download PDFInfo
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- KR100741442B1 KR100741442B1 KR1020040021393A KR20040021393A KR100741442B1 KR 100741442 B1 KR100741442 B1 KR 100741442B1 KR 1020040021393 A KR1020040021393 A KR 1020040021393A KR 20040021393 A KR20040021393 A KR 20040021393A KR 100741442 B1 KR100741442 B1 KR 100741442B1
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- Prior art keywords
- film
- gas
- insulating film
- semiconductor device
- silicon
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- 239000004065 semiconductor Substances 0.000 title claims abstract description 52
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 24
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 claims abstract description 148
- 229910052710 silicon Inorganic materials 0.000 claims abstract description 147
- 239000010703 silicon Substances 0.000 claims abstract description 144
- 239000000758 substrate Substances 0.000 claims abstract description 90
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims abstract description 86
- 229910052814 silicon oxide Inorganic materials 0.000 claims abstract description 85
- 239000001301 oxygen Substances 0.000 claims abstract description 78
- 229910052760 oxygen Inorganic materials 0.000 claims abstract description 78
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims abstract description 69
- 229910052735 hafnium Inorganic materials 0.000 claims abstract description 66
- VBJZVLUMGGDVMO-UHFFFAOYSA-N hafnium atom Chemical compound [Hf] VBJZVLUMGGDVMO-UHFFFAOYSA-N 0.000 claims abstract description 59
- 229910052581 Si3N4 Inorganic materials 0.000 claims abstract description 42
- HQVNEWCFYHHQES-UHFFFAOYSA-N silicon nitride Chemical compound N12[Si]34N5[Si]62N3[Si]51N64 HQVNEWCFYHHQES-UHFFFAOYSA-N 0.000 claims abstract description 42
- 239000007789 gas Substances 0.000 claims description 172
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 83
- 230000001590 oxidative effect Effects 0.000 claims description 42
- 229910052757 nitrogen Inorganic materials 0.000 claims description 41
- 229910044991 metal oxide Inorganic materials 0.000 claims description 38
- 150000004706 metal oxides Chemical class 0.000 claims description 38
- 238000000034 method Methods 0.000 claims description 33
- 238000010438 heat treatment Methods 0.000 claims description 32
- 229910052751 metal Inorganic materials 0.000 claims description 31
- 239000002184 metal Substances 0.000 claims description 31
- 229910021332 silicide Inorganic materials 0.000 claims description 29
- FVBUAEGBCNSCDD-UHFFFAOYSA-N silicide(4-) Chemical compound [Si-4] FVBUAEGBCNSCDD-UHFFFAOYSA-N 0.000 claims description 29
- 239000002994 raw material Substances 0.000 claims description 26
- MYMOFIZGZYHOMD-UHFFFAOYSA-N Dioxygen Chemical compound O=O MYMOFIZGZYHOMD-UHFFFAOYSA-N 0.000 claims description 23
- 229910001882 dioxygen Inorganic materials 0.000 claims description 23
- 229910052727 yttrium Inorganic materials 0.000 claims description 22
- VWQVUPCCIRVNHF-UHFFFAOYSA-N yttrium atom Chemical compound [Y] VWQVUPCCIRVNHF-UHFFFAOYSA-N 0.000 claims description 22
- -1 lantern Chemical compound 0.000 claims description 21
- PXGOKWXKJXAPGV-UHFFFAOYSA-N Fluorine Chemical compound FF PXGOKWXKJXAPGV-UHFFFAOYSA-N 0.000 claims description 18
- QCWXUUIWCKQGHC-UHFFFAOYSA-N Zirconium Chemical compound [Zr] QCWXUUIWCKQGHC-UHFFFAOYSA-N 0.000 claims description 18
- 239000011737 fluorine Substances 0.000 claims description 18
- 229910052731 fluorine Inorganic materials 0.000 claims description 18
- 229910052726 zirconium Inorganic materials 0.000 claims description 18
- 229910052914 metal silicate Inorganic materials 0.000 claims description 16
- CBENFWSGALASAD-UHFFFAOYSA-N Ozone Chemical compound [O-][O+]=O CBENFWSGALASAD-UHFFFAOYSA-N 0.000 claims description 11
- 229910052782 aluminium Inorganic materials 0.000 claims description 7
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 7
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 claims description 5
- 229910052698 phosphorus Inorganic materials 0.000 claims description 5
- 239000011574 phosphorus Substances 0.000 claims description 5
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 claims description 3
- 229910001873 dinitrogen Inorganic materials 0.000 claims 1
- 238000009832 plasma treatment Methods 0.000 claims 1
- BPQQTUXANYXVAA-UHFFFAOYSA-N Orthosilicate Chemical compound [O-][Si]([O-])([O-])[O-] BPQQTUXANYXVAA-UHFFFAOYSA-N 0.000 abstract description 48
- 238000002955 isolation Methods 0.000 abstract description 11
- 239000010408 film Substances 0.000 description 472
- 239000010410 layer Substances 0.000 description 71
- KRHYYFGTRYWZRS-UHFFFAOYSA-N Fluorane Chemical compound F KRHYYFGTRYWZRS-UHFFFAOYSA-N 0.000 description 42
- 238000009792 diffusion process Methods 0.000 description 42
- 229910000040 hydrogen fluoride Inorganic materials 0.000 description 18
- 229910021420 polycrystalline silicon Inorganic materials 0.000 description 17
- 238000006243 chemical reaction Methods 0.000 description 16
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 15
- 229910021334 nickel silicide Inorganic materials 0.000 description 14
- RUFLMLWJRZAWLJ-UHFFFAOYSA-N nickel silicide Chemical compound [Ni]=[Si]=[Ni] RUFLMLWJRZAWLJ-UHFFFAOYSA-N 0.000 description 14
- 230000015572 biosynthetic process Effects 0.000 description 12
- 230000000052 comparative effect Effects 0.000 description 12
- 239000007864 aqueous solution Substances 0.000 description 11
- 238000005229 chemical vapour deposition Methods 0.000 description 8
- 230000008569 process Effects 0.000 description 8
- 206010021143 Hypoxia Diseases 0.000 description 7
- 229910000449 hafnium oxide Inorganic materials 0.000 description 7
- WIHZLLGSGQNAGK-UHFFFAOYSA-N hafnium(4+);oxygen(2-) Chemical compound [O-2].[O-2].[Hf+4] WIHZLLGSGQNAGK-UHFFFAOYSA-N 0.000 description 7
- 238000005406 washing Methods 0.000 description 7
- ZOXJGFHDIHLPTG-UHFFFAOYSA-N Boron Chemical compound [B] ZOXJGFHDIHLPTG-UHFFFAOYSA-N 0.000 description 6
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 6
- 229910052796 boron Inorganic materials 0.000 description 6
- 238000005121 nitriding Methods 0.000 description 6
- 229910004298 SiO 2 Inorganic materials 0.000 description 5
- 125000004429 atom Chemical group 0.000 description 5
- 238000004140 cleaning Methods 0.000 description 5
- 238000007254 oxidation reaction Methods 0.000 description 5
- 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 5
- 238000000206 photolithography Methods 0.000 description 5
- LIVNPJMFVYWSIS-UHFFFAOYSA-N silicon monoxide Chemical compound [Si-]#[O+] LIVNPJMFVYWSIS-UHFFFAOYSA-N 0.000 description 5
- 238000010306 acid treatment Methods 0.000 description 4
- 239000010941 cobalt Substances 0.000 description 4
- 229910017052 cobalt Inorganic materials 0.000 description 4
- GUTLYIVDDKVIGB-UHFFFAOYSA-N cobalt atom Chemical compound [Co] GUTLYIVDDKVIGB-UHFFFAOYSA-N 0.000 description 4
- 239000000428 dust Substances 0.000 description 4
- 238000005468 ion implantation Methods 0.000 description 4
- 239000000463 material Substances 0.000 description 4
- 230000003647 oxidation Effects 0.000 description 4
- 229910021341 titanium silicide Inorganic materials 0.000 description 4
- GFQYVLUOOAAOGM-UHFFFAOYSA-N zirconium(iv) silicate Chemical compound [Zr+4].[O-][Si]([O-])([O-])[O-] GFQYVLUOOAAOGM-UHFFFAOYSA-N 0.000 description 4
- DDFHBQSCUXNBSA-UHFFFAOYSA-N 5-(5-carboxythiophen-2-yl)thiophene-2-carboxylic acid Chemical compound S1C(C(=O)O)=CC=C1C1=CC=C(C(O)=O)S1 DDFHBQSCUXNBSA-UHFFFAOYSA-N 0.000 description 3
- YWATTXMDZQWERV-UHFFFAOYSA-N CN(C)[Hf] Chemical compound CN(C)[Hf] YWATTXMDZQWERV-UHFFFAOYSA-N 0.000 description 3
- 229910017855 NH 4 F Inorganic materials 0.000 description 3
- BLRPTPMANUNPDV-UHFFFAOYSA-N Silane Chemical compound [SiH4] BLRPTPMANUNPDV-UHFFFAOYSA-N 0.000 description 3
- BOTDANWDWHJENH-UHFFFAOYSA-N Tetraethyl orthosilicate Chemical compound CCO[Si](OCC)(OCC)OCC BOTDANWDWHJENH-UHFFFAOYSA-N 0.000 description 3
- 239000007983 Tris buffer Substances 0.000 description 3
- TWRSDLOICOIGRH-UHFFFAOYSA-N [Si].[Si].[Hf] Chemical compound [Si].[Si].[Hf] TWRSDLOICOIGRH-UHFFFAOYSA-N 0.000 description 3
- 229910021417 amorphous silicon Inorganic materials 0.000 description 3
- 150000004696 coordination complex Chemical class 0.000 description 3
- VBCSQFQVDXIOJL-UHFFFAOYSA-N diethylazanide;hafnium(4+) Chemical compound [Hf+4].CC[N-]CC.CC[N-]CC.CC[N-]CC.CC[N-]CC VBCSQFQVDXIOJL-UHFFFAOYSA-N 0.000 description 3
- AWFPGKLDLMAPMK-UHFFFAOYSA-N dimethylaminosilicon Chemical compound CN(C)[Si] AWFPGKLDLMAPMK-UHFFFAOYSA-N 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 238000005530 etching Methods 0.000 description 3
- 239000012535 impurity Substances 0.000 description 3
- 239000011229 interlayer Substances 0.000 description 3
- 239000003446 ligand Substances 0.000 description 3
- 230000007246 mechanism Effects 0.000 description 3
- BFXIKLCIZHOAAZ-UHFFFAOYSA-N methyltrimethoxysilane Chemical compound CO[Si](C)(OC)OC BFXIKLCIZHOAAZ-UHFFFAOYSA-N 0.000 description 3
- 229910052759 nickel Inorganic materials 0.000 description 3
- 238000012545 processing Methods 0.000 description 3
- 229910000077 silane Inorganic materials 0.000 description 3
- 230000003746 surface roughness Effects 0.000 description 3
- 125000006158 tetracarboxylic acid group Chemical group 0.000 description 3
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 2
- MWUXSHHQAYIFBG-UHFFFAOYSA-N Nitric oxide Chemical compound O=[N] MWUXSHHQAYIFBG-UHFFFAOYSA-N 0.000 description 2
- NRTOMJZYCJJWKI-UHFFFAOYSA-N Titanium nitride Chemical compound [Ti]#N NRTOMJZYCJJWKI-UHFFFAOYSA-N 0.000 description 2
- 238000004833 X-ray photoelectron spectroscopy Methods 0.000 description 2
- 230000004913 activation Effects 0.000 description 2
- 239000001257 hydrogen Substances 0.000 description 2
- 229910052739 hydrogen Inorganic materials 0.000 description 2
- 125000004435 hydrogen atom Chemical group [H]* 0.000 description 2
- 238000009413 insulation Methods 0.000 description 2
- 230000010354 integration Effects 0.000 description 2
- 150000002500 ions Chemical class 0.000 description 2
- 150000004767 nitrides Chemical class 0.000 description 2
- TWNQGVIAIRXVLR-UHFFFAOYSA-N oxo(oxoalumanyloxy)alumane Chemical compound O=[Al]O[Al]=O TWNQGVIAIRXVLR-UHFFFAOYSA-N 0.000 description 2
- 229920005591 polysilicon Polymers 0.000 description 2
- 230000001603 reducing effect Effects 0.000 description 2
- 238000001179 sorption measurement Methods 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 239000010409 thin film Substances 0.000 description 2
- 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
- KJTLSVCANCCWHF-UHFFFAOYSA-N Ruthenium Chemical compound [Ru] KJTLSVCANCCWHF-UHFFFAOYSA-N 0.000 description 1
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 1
- ILCYGSITMBHYNK-UHFFFAOYSA-N [Si]=O.[Hf] Chemical compound [Si]=O.[Hf] ILCYGSITMBHYNK-UHFFFAOYSA-N 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 229910021529 ammonia Inorganic materials 0.000 description 1
- 239000003990 capacitor Substances 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 230000000295 complement effect Effects 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 230000010485 coping Effects 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 239000003344 environmental pollutant Substances 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- JCXJVPUVTGWSNB-UHFFFAOYSA-N nitrogen dioxide Inorganic materials O=[N]=O JCXJVPUVTGWSNB-UHFFFAOYSA-N 0.000 description 1
- 150000002926 oxygen Chemical class 0.000 description 1
- 238000001020 plasma etching Methods 0.000 description 1
- 231100000719 pollutant Toxicity 0.000 description 1
- 230000002250 progressing effect Effects 0.000 description 1
- 239000010453 quartz Substances 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 238000010405 reoxidation reaction Methods 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 229910052707 ruthenium Inorganic materials 0.000 description 1
- 238000004544 sputter deposition Methods 0.000 description 1
- 239000013589 supplement Substances 0.000 description 1
- 229910052715 tantalum Inorganic materials 0.000 description 1
- GUVRBAGPIYLISA-UHFFFAOYSA-N tantalum atom Chemical compound [Ta] GUVRBAGPIYLISA-UHFFFAOYSA-N 0.000 description 1
- 239000010936 titanium Substances 0.000 description 1
- 229910052719 titanium Inorganic materials 0.000 description 1
- 230000009466 transformation Effects 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
- 238000007740 vapor deposition Methods 0.000 description 1
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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
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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
- H01L21/28008—Making conductor-insulator-semiconductor electrodes
- H01L21/28017—Making conductor-insulator-semiconductor electrodes the insulator being formed after the semiconductor body, the semiconductor being silicon
- H01L21/28158—Making the insulator
- H01L21/28167—Making the insulator on single crystalline silicon, e.g. using a liquid, i.e. chemical oxidation
- H01L21/28185—Making the insulator on single crystalline silicon, e.g. using a liquid, i.e. chemical oxidation with a treatment, e.g. annealing, after the formation of the gate insulator and before the formation of the definitive gate conductor
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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
- H01L21/28008—Making conductor-insulator-semiconductor electrodes
- H01L21/28017—Making conductor-insulator-semiconductor electrodes the insulator being formed after the semiconductor body, the semiconductor being silicon
- H01L21/28158—Making the insulator
- H01L21/28167—Making the insulator on single crystalline silicon, e.g. using a liquid, i.e. chemical oxidation
- H01L21/28194—Making the insulator on single crystalline silicon, e.g. using a liquid, i.e. chemical oxidation by deposition, e.g. evaporation, ALD, CVD, sputtering, laser deposition
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- H—ELECTRICITY
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- 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
- H01L21/28008—Making conductor-insulator-semiconductor electrodes
- H01L21/28017—Making conductor-insulator-semiconductor electrodes the insulator being formed after the semiconductor body, the semiconductor being silicon
- H01L21/28158—Making the insulator
- H01L21/28167—Making the insulator on single crystalline silicon, e.g. using a liquid, i.e. chemical oxidation
- H01L21/28202—Making the insulator on single crystalline silicon, e.g. using a liquid, i.e. chemical oxidation in a nitrogen-containing ambient, e.g. nitride deposition, growth, oxynitridation, NH3 nitridation, N2O oxidation, thermal nitridation, RTN, plasma nitridation, RPN
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- H10D—INORGANIC ELECTRIC SEMICONDUCTOR DEVICES
- H10D64/00—Electrodes of devices having potential barriers
- H10D64/60—Electrodes characterised by their materials
- H10D64/66—Electrodes having a conductor capacitively coupled to a semiconductor by an insulator, e.g. MIS electrodes
- H10D64/68—Electrodes having a conductor capacitively coupled to a semiconductor by an insulator, e.g. MIS electrodes characterised by the insulator, e.g. by the gate insulator
- H10D64/681—Electrodes having a conductor capacitively coupled to a semiconductor by an insulator, e.g. MIS electrodes characterised by the insulator, e.g. by the gate insulator having a compositional variation, e.g. multilayered
- H10D64/685—Electrodes having a conductor capacitively coupled to a semiconductor by an insulator, e.g. MIS electrodes characterised by the insulator, e.g. by the gate insulator having a compositional variation, e.g. multilayered being perpendicular to the channel plane
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- H10D—INORGANIC ELECTRIC SEMICONDUCTOR DEVICES
- H10D64/00—Electrodes of devices having potential barriers
- H10D64/60—Electrodes characterised by their materials
- H10D64/66—Electrodes having a conductor capacitively coupled to a semiconductor by an insulator, e.g. MIS electrodes
- H10D64/68—Electrodes having a conductor capacitively coupled to a semiconductor by an insulator, e.g. MIS electrodes characterised by the insulator, e.g. by the gate insulator
- H10D64/691—Electrodes having a conductor capacitively coupled to a semiconductor by an insulator, e.g. MIS electrodes characterised by the insulator, e.g. by the gate insulator comprising metallic compounds, e.g. metal oxides or metal silicates
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- H10D—INORGANIC ELECTRIC SEMICONDUCTOR DEVICES
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- H10D64/60—Electrodes characterised by their materials
- H10D64/66—Electrodes having a conductor capacitively coupled to a semiconductor by an insulator, e.g. MIS electrodes
- H10D64/68—Electrodes having a conductor capacitively coupled to a semiconductor by an insulator, e.g. MIS electrodes characterised by the insulator, e.g. by the gate insulator
- H10D64/693—Electrodes having a conductor capacitively coupled to a semiconductor by an insulator, e.g. MIS electrodes characterised by the insulator, e.g. by the gate insulator the insulator comprising nitrogen, e.g. nitrides, oxynitrides or nitrogen-doped materials
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- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10D—INORGANIC ELECTRIC SEMICONDUCTOR DEVICES
- H10D84/00—Integrated devices formed in or on semiconductor substrates that comprise only semiconducting layers, e.g. on Si wafers or on GaAs-on-Si wafers
- H10D84/01—Manufacture or treatment
- H10D84/0123—Integrating together multiple components covered by H10D12/00 or H10D30/00, e.g. integrating multiple IGBTs
- H10D84/0126—Integrating together multiple components covered by H10D12/00 or H10D30/00, e.g. integrating multiple IGBTs the components including insulated gates, e.g. IGFETs
- H10D84/0165—Integrating together multiple components covered by H10D12/00 or H10D30/00, e.g. integrating multiple IGBTs the components including insulated gates, e.g. IGFETs the components including complementary IGFETs, e.g. CMOS devices
- H10D84/0181—Manufacturing their gate insulating layers
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- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10D—INORGANIC ELECTRIC SEMICONDUCTOR DEVICES
- H10D84/00—Integrated devices formed in or on semiconductor substrates that comprise only semiconducting layers, e.g. on Si wafers or on GaAs-on-Si wafers
- H10D84/01—Manufacture or treatment
- H10D84/02—Manufacture or treatment characterised by using material-based technologies
- H10D84/03—Manufacture or treatment characterised by using material-based technologies using Group IV technology, e.g. silicon technology or silicon-carbide [SiC] technology
- H10D84/038—Manufacture or treatment characterised by using material-based technologies using Group IV technology, e.g. silicon technology or silicon-carbide [SiC] technology using silicon technology, e.g. SiGe
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- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Power Engineering (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Physics & Mathematics (AREA)
- Computer Hardware Design (AREA)
- Condensed Matter Physics & Semiconductors (AREA)
- General Physics & Mathematics (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Crystallography & Structural Chemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Insulated Gate Type Field-Effect Transistor (AREA)
- Formation Of Insulating Films (AREA)
- Metal-Oxide And Bipolar Metal-Oxide Semiconductor Integrated Circuits (AREA)
- Internal Circuitry In Semiconductor Integrated Circuit Devices (AREA)
Abstract
Description
샘플 | 서브 옥사이드 함유량(%) | SiO2 함유량(%) |
제1 실시 형태 | 24 | 76 |
제1 비교예 | 63 | 37 |
제2 비교예 | 52 | 48 |
제3 비교예 | 55 | 45 |
제1 절연막 | 계면 준위 밀도(㎝-2eV-1) | |
서브 옥사이드 함유량 30 % | 서브 옥사이드 함유량 50 % | |
실리콘 산화막 (제1 실시 형태) | 1.8 × 1010 | 7 × 1010 |
실리콘 산질화막 (제2 실시 형태) | 1.8 × 1010 | 2 × 1011 |
Claims (23)
- 실리콘 기판 상에 형성된 제1 절연막과, 상기 제1 절연막 상에 형성된 제2 절연막을 갖는 반도체 장치이며, 상기 제1 절연막은 막 두께가 0 초과 1 ㎚ 이하이고 서브 옥사이드의 함유량이 0 초과 30 % 이하인 실리콘 산화막이며, 상기 제2 절연막은 고유전율 절연막인 것을 특징으로 하는 반도체 장치.
- 제1항에 있어서, 상기 고유전율 절연막은 금속 산화막 또는 금속 규산화막인 반도체 장치.
- 제2항에 있어서, 상기 금속 산화막은 하프늄, 지르코늄, 랜턴 및 이트륨으로 이루어지는 군으로부터 선택되는 적어도 1 종류의 금속 산화막인 반도체 장치.
- 제2항에 있어서, 상기 금속 규산화막은 하프늄, 지르코늄, 랜턴, 이트륨 및 알루미늄으로 이루어지는 군으로부터 선택되는 적어도 1 종류의 금속 규산화막인 반도체 장치.
- 제4항에 있어서, 상기 금속 규산화막이 질소를 포함하는 반도체 장치.
- 실리콘 기판 상에 형성된 제1 절연막과, 상기 제1 절연막 상에 형성된 제2 절연막을 갖는 반도체 장치이며, 상기 제1 절연막은 막 두께가 0 초과 1 ㎚ 이하이며 서브 옥사이드의 함유량이 0 초과 30 % 이하인 실리콘 산질화막이고, 상기 제2 절연막은 고유전율 절연막인 것을 특징으로 하는 반도체 장치.
- 제6항에 있어서, 상기 고유전율 절연막은 금속 산화막 또는 금속 규산화막인 반도체 장치.
- 제7항에 있어서, 상기 금속 산화막은 하프늄, 지르코늄, 랜턴 및 이트륨으로 이루어지는 군으로부터 선택되는 적어도 1 종류의 금속 산화막인 반도체 장치.
- 제7항에 있어서, 상기 금속 규산화막은 하프늄, 지르코늄, 랜턴, 이트륨 및 알루미늄으로 이루어지는 군으로부터 선택되는 적어도 1 종류의 금속 규산화막인 반도체 장치.
- 제9항에 있어서, 상기 금속 규산화막이 질소를 포함하는 반도체 장치.
- 실리콘 기판 상에 형성된 제1 절연막과, 상기 제1 절연막 상에 형성된 제2 절연막을 갖는 반도체 장치이며, 상기 제1 절연막은 막 두께가 0 초과 1 ㎚ 이하이고 산소 함유량이 0 초과 0.1 atom % 미만인 실리콘 질화막이고, 상기 제2 절연막은 고유전율 절연막인 것을 특징으로 하는 반도체 장치.
- 감압 하에 있어서 비산화성 가스로 실리콘 기판의 표면을 처리하는 공정과, 감압을 유지한 상태에서 상기 실리콘 기판 상에 제1 절연막을 형성하는 공정과, 상기 제1 절연막 상에 산소를 포함하는 원료를 이용하여 제2 절연막으로서의 금속 산화막을 형성하는 공정과, 상기 금속 산화막을 산화성 가스 분위기 하에서 가열 처리하는 공정을 갖는 것을 특징으로 하는 반도체 장치의 제조 방법.
- 감압 하에 있어서 비산화성 가스로 실리콘 기판의 표면을 처리하는 공정과, 감압을 유지한 상태에서 상기 실리콘 기판 상에 제1 절연막을 형성하는 공정과, 상기 제1 절연막 상에 산소를 포함하는 원료를 이용하여 제2 절연막으로서의 금속 규산화막을 형성하는 공정과, 상기 금속 규산화막을 산화성 가스 분위기 하에서 가열 처리하는 공정을 갖는 것을 특징으로 하는 반도체 장치의 제조 방법.
- 제13항에 있어서, 상기 가열 처리 후에 상기 제2 절연막 표면에서의 질소 농도를 높이는 처리를 행하는 공정을 더 갖는 반도체 장치의 제조 방법.
- 제14항에 있어서, 상기 질소 농도를 높이는 처리는 암모니아 가스 분위기 하에서의 가열 처리인 반도체 장치의 제조 방법.
- 제14항에 있어서, 상기 질소 농도를 높이는 처리는 질소 가스를 이용한 플라 즈마 처리인 반도체 장치의 제조 방법.
- 제13항에 있어서, 상기 제1 절연막은 실리콘 산화막, 실리콘 산질화막 및 실리콘 질화막으로 이루어지는 군으로부터 선택되는 어느 1 종류의 막인 반도체 장치의 제조 방법.
- 제13항에 있어서, 상기 비산화성 가스로 실리콘 기판의 표면을 처리하는 공정이 25 ℃ 내지 600 ℃ 범위의 온도에 있어서 불소를 포함하는 가스로 행해지는 반도체 장치의 제조 방법.
- 제13항에 있어서, 상기 비산화성 가스의 분압은 0 초과 100 ㎩ 이하인 반도체 장치의 제조 방법.
- 제13항에 있어서, 상기 비산화성 가스는 불소를 포함하는 가스이며, 상기 불소를 포함하는 가스는 HF 가스, ClF3 가스, F2 가스 및 NF3 가스로 이루어지는 군으로부터 선택되는 적어도 1 종류의 가스인 반도체 장치의 제조 방법.
- 제13항에 있어서, 상기 산화성 가스는 산소 가스인 반도체 장치의 제조 방법.
- 제21항에 있어서, 상기 산소 가스는 오존 또는 산소 래디컬을 포함하는 반도체 장치의 제조 방법.
- 제13항에 있어서, 상기 가열 처리는 100 ℃ 내지 400 ℃ 범위의 온도에서 행해지는 반도체 장치의 제조 방법.
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