KR100938528B1 - 반도체 장치의 제조 방법 - Google Patents
반도체 장치의 제조 방법 Download PDFInfo
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- KR100938528B1 KR100938528B1 KR1020077030268A KR20077030268A KR100938528B1 KR 100938528 B1 KR100938528 B1 KR 100938528B1 KR 1020077030268 A KR1020077030268 A KR 1020077030268A KR 20077030268 A KR20077030268 A KR 20077030268A KR 100938528 B1 KR100938528 B1 KR 100938528B1
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- Prior art keywords
- oxide film
- hydrogen
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- film
- reactant
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- 238000000034 method Methods 0.000 title claims abstract description 68
- 239000004065 semiconductor Substances 0.000 title claims abstract description 56
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 37
- 238000012545 processing Methods 0.000 claims abstract description 93
- 229910052739 hydrogen Inorganic materials 0.000 claims abstract description 60
- 239000000758 substrate Substances 0.000 claims abstract description 53
- 239000001257 hydrogen Substances 0.000 claims abstract description 45
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 claims abstract description 41
- 230000008569 process Effects 0.000 claims abstract description 37
- 239000000376 reactant Substances 0.000 claims abstract description 33
- 238000010438 heat treatment Methods 0.000 claims abstract description 27
- 239000000463 material Substances 0.000 claims abstract description 27
- 238000006243 chemical reaction Methods 0.000 claims abstract description 24
- 229910052721 tungsten Inorganic materials 0.000 claims abstract description 23
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical group [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 claims abstract description 20
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 18
- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 claims abstract description 17
- 239000010937 tungsten Substances 0.000 claims abstract description 17
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims abstract description 5
- 229910052814 silicon oxide Inorganic materials 0.000 claims abstract description 5
- 229910052751 metal Inorganic materials 0.000 claims description 37
- 239000002184 metal Substances 0.000 claims description 37
- 229910052710 silicon Inorganic materials 0.000 claims description 13
- CBENFWSGALASAD-UHFFFAOYSA-N Ozone Chemical group [O-][O+]=O CBENFWSGALASAD-UHFFFAOYSA-N 0.000 claims description 11
- 239000010703 silicon Substances 0.000 claims description 10
- 125000004430 oxygen atom Chemical group O* 0.000 claims description 6
- 150000002431 hydrogen Chemical class 0.000 claims description 3
- 125000004435 hydrogen atom Chemical class [H]* 0.000 abstract 1
- 235000012431 wafers Nutrition 0.000 description 59
- 230000003647 oxidation Effects 0.000 description 57
- 238000007254 oxidation reaction Methods 0.000 description 57
- 239000002994 raw material Substances 0.000 description 47
- 239000010410 layer Substances 0.000 description 29
- 238000000231 atomic layer deposition Methods 0.000 description 26
- 229910052760 oxygen Inorganic materials 0.000 description 22
- 238000012546 transfer Methods 0.000 description 19
- 239000007789 gas Substances 0.000 description 17
- 230000001590 oxidative effect Effects 0.000 description 17
- 229910004298 SiO 2 Inorganic materials 0.000 description 13
- 239000001301 oxygen Substances 0.000 description 12
- JUJWROOIHBZHMG-UHFFFAOYSA-N Pyridine Chemical compound C1=CC=NC=C1 JUJWROOIHBZHMG-UHFFFAOYSA-N 0.000 description 11
- 230000015572 biosynthetic process Effects 0.000 description 11
- LIVNPJMFVYWSIS-UHFFFAOYSA-N silicon monoxide Chemical compound [Si-]#[O+] LIVNPJMFVYWSIS-UHFFFAOYSA-N 0.000 description 11
- 239000003054 catalyst Substances 0.000 description 9
- 230000007246 mechanism Effects 0.000 description 8
- 230000004048 modification Effects 0.000 description 8
- 238000012986 modification Methods 0.000 description 8
- 239000011261 inert gas Substances 0.000 description 6
- 230000009467 reduction Effects 0.000 description 6
- 238000005229 chemical vapour deposition Methods 0.000 description 5
- 238000010586 diagram Methods 0.000 description 5
- 238000012423 maintenance Methods 0.000 description 5
- UMJSCPRVCHMLSP-UHFFFAOYSA-N pyridine Natural products COC1=CC=CN=C1 UMJSCPRVCHMLSP-UHFFFAOYSA-N 0.000 description 5
- 239000000872 buffer Substances 0.000 description 4
- 238000005192 partition Methods 0.000 description 4
- 230000004913 activation Effects 0.000 description 3
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 3
- 230000001965 increasing effect Effects 0.000 description 3
- 239000011229 interlayer Substances 0.000 description 3
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 description 2
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- BOTDANWDWHJENH-UHFFFAOYSA-N Tetraethyl orthosilicate Chemical group CCO[Si](OCC)(OCC)OCC BOTDANWDWHJENH-UHFFFAOYSA-N 0.000 description 2
- 229910052786 argon Inorganic materials 0.000 description 2
- 230000004888 barrier function Effects 0.000 description 2
- 239000003990 capacitor Substances 0.000 description 2
- 238000009792 diffusion process Methods 0.000 description 2
- 230000005284 excitation Effects 0.000 description 2
- 238000010926 purge Methods 0.000 description 2
- 238000005979 thermal decomposition reaction Methods 0.000 description 2
- 206010019909 Hernia Diseases 0.000 description 1
- 239000007983 Tris buffer Substances 0.000 description 1
- 239000010953 base metal Substances 0.000 description 1
- 230000003197 catalytic effect Effects 0.000 description 1
- 239000000470 constituent Substances 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- AWFPGKLDLMAPMK-UHFFFAOYSA-N dimethylaminosilicon Chemical compound CN(C)[Si] AWFPGKLDLMAPMK-UHFFFAOYSA-N 0.000 description 1
- 229910001873 dinitrogen Inorganic materials 0.000 description 1
- 239000007772 electrode material Substances 0.000 description 1
- 230000003028 elevating effect Effects 0.000 description 1
- 238000005530 etching Methods 0.000 description 1
- 125000001301 ethoxy group Chemical group [H]C([H])([H])C([H])([H])O* 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
- 239000011810 insulating material Substances 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 239000012528 membrane Substances 0.000 description 1
- 229910052754 neon Inorganic materials 0.000 description 1
- GKAOGPIIYCISHV-UHFFFAOYSA-N neon atom Chemical compound [Ne] GKAOGPIIYCISHV-UHFFFAOYSA-N 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 150000002894 organic compounds Chemical class 0.000 description 1
- 239000007800 oxidant agent Substances 0.000 description 1
- 229910021420 polycrystalline silicon Inorganic materials 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- UNWUYTNKSRTDDC-UHFFFAOYSA-N tert-butylsilane Chemical compound CC(C)(C)[SiH3] UNWUYTNKSRTDDC-UHFFFAOYSA-N 0.000 description 1
- LENZDBCJOHFCAS-UHFFFAOYSA-N tris Chemical compound OCC(N)(CO)CO LENZDBCJOHFCAS-UHFFFAOYSA-N 0.000 description 1
- VEDJZFSRVVQBIL-UHFFFAOYSA-N trisilane Chemical compound [SiH3][SiH2][SiH3] VEDJZFSRVVQBIL-UHFFFAOYSA-N 0.000 description 1
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- H01L21/00—Processes or apparatus adapted for the manufacture or treatment of semiconductor or solid state devices or of parts thereof
- H01L21/02—Manufacture or treatment of semiconductor devices or of parts thereof
- H01L21/04—Manufacture or treatment of semiconductor devices or of parts thereof the devices having potential barriers, e.g. a PN junction, depletion layer or carrier concentration layer
- H01L21/18—Manufacture or treatment of semiconductor devices or of parts thereof the devices having potential barriers, e.g. a PN junction, depletion layer or carrier concentration layer the devices having semiconductor bodies comprising elements of Group IV of the Periodic Table or AIIIBV compounds with or without impurities, e.g. doping materials
- H01L21/30—Treatment of semiconductor bodies using processes or apparatus not provided for in groups H01L21/20 - H01L21/26
- H01L21/31—Treatment of semiconductor bodies using processes or apparatus not provided for in groups H01L21/20 - H01L21/26 to form insulating layers thereon, e.g. for masking or by using photolithographic techniques; After treatment of these layers; Selection of materials for these layers
- H01L21/314—Inorganic layers
- H01L21/316—Inorganic layers composed of oxides or glassy oxides or oxide based glass
- H01L21/31604—Deposition from a gas or vapour
- H01L21/31608—Deposition of SiO2
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- H01L21/0228—Forming insulating materials on a substrate characterised by the process for the formation of the insulating layer formation by a deposition process deposition from the gas or vapour phase deposition by decomposition or reaction of gaseous or vapour phase compounds, i.e. chemical vapour deposition deposition by cyclic CVD, e.g. ALD, ALE, pulsed CVD
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- C23C16/45523—Pulsed gas flow or change of composition over time
- C23C16/45525—Atomic layer deposition [ALD]
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- 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
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- 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]
- C23C16/45544—Atomic layer deposition [ALD] characterized by the apparatus
- C23C16/45546—Atomic layer deposition [ALD] characterized by the apparatus specially adapted for a substrate stack in the ALD reactor
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- H01L21/02107—Forming insulating materials on a substrate
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- 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
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Abstract
Description
Claims (9)
- 표면에 텅스텐막이 형성된 적어도 1매의 기판을 처리실 내에 반입하는 공정과,상기 기판을 소정의 온도로 가열하면서 실리콘 원자를 포함한 제1 반응 물질을 상기 처리실 내에 공급하는 공정과, 상기 기판을 상기 소정의 온도로 가열하면서 제2 반응 물질인 물과 수소를, 상기 수소에 대한 상기 물의 비율을 소정의 비율로 하여 상기 처리실 내에 공급하는 공정을 교대로 여러 차례 반복하고, 상기 텅스텐막을 포함한 기판 표면에 실리콘 산화막을 형성하는 공정을 구비하고,상기 소정의 온도는 100~450℃이며,상기 소정의 비율은, 상기 소정의 온도와 상기 수소에 대한 상기 물의 공급비를 (T, H2O/H2)로 한 경우에, (T, H2O/H2)=(100℃, 8×10-4), (200℃, 2×10-2), (300℃, 9×10-2), (400℃, 2×10-1), (450℃, 2.5×10-1)의 각 점을 연결하는 직선 이하인 반도체 장치의 제조 방법.
- 표면에 금속막이 형성된 적어도 1매의 기판을 처리실 내에 반입하는 공정과,상기 금속막을 포함한 기판 표면에 실리콘을 포함한 산화막을 형성하는 공정을 적어도 구비한 반도체 장치의 제조 방법으로서,상기 산화막의 형성 공정은,상기 기판을 소정의 온도로 가열하면서 실리콘 원자를 포함한 제1 반응 물질을 상기 처리실 내에 공급하는 공정과,상기 기판을 상기 소정의 온도로 가열하면서 산소 원자를 포함한 제2 반응 물질과 수소를 상기 처리실 내에 공급하는 공정을 갖고,상기 산화막의 형성 공정에서는,상기 제1 반응 물질의 공급과 상기 제2 반응 물질 및 상기 수소의 공급을 교대로 여러 차례 반복하여 상기 산화막을 형성하며,상기 금속막이 텅스텐막이고,상기 소정의 온도가 100~450℃이며,상기 제2 반응 물질이 물이고,상기 수소에 대한 상기 물의 공급비가 상기 소정의 온도와 상기 수소에 대한 상기 물의 공급비를 (T, H2O/H2)로 한 경우에, (T, H2O/H2)=(100℃, 8×10-4), (200℃, 2×10-2), (300℃, 9×10-2), (400℃, 2×10-1), (450℃, 2.5×10-1)의 각 점을 연결하는 직선 이하인 반도체 장치의 제조 방법.
- 표면에 금속막이 형성된 적어도 1매의 기판을 처리실 내에 반입하는 공정과,상기 금속막을 포함한 기판 표면에 실리콘을 포함한 산화막을 형성하는 공정을 적어도 구비한 반도체 장치의 제조 방법으로서,상기 산화막의 형성 공정은,상기 기판을 소정의 온도로 가열하면서 실리콘 원자를 포함한 제1 반응 물질을 상기 처리실 내에 공급하는 공정과,상기 기판을 상기 소정의 온도로 가열하면서 산소 원자를 포함한 제2 반응 물질과 수소를 상기 처리실 내에 공급하는 공정을 갖고,상기 산화막의 형성 공정에서는,상기 제1 반응 물질의 공급과 상기 제2 반응 물질 및 상기 수소의 공급을 교대로 여러 차례 반복하여 상기 산화막을 형성하며,상기 금속막이 텅스텐막이고,상기 소정의 온도가 100~450℃이며,상기 제2 반응 물질이 오존이고,상기 수소에 대한 상기 오존의 공급비가 상기 소정의 온도와 상기 수소에 대한 상기 오존의 공급비를 (T, O3/H2)로 한 경우에, (T, O3/H2)=(100℃, 8×10-4), (200℃, 2×10-2), (300℃, 9×10-2), (400℃, 2×10-1), (450℃, 2.5×10-1)의 각 점을 연결하는 직선 이하인 반도체 장치의 제조 방법.
- 표면에 금속막이 형성된 적어도 1매의 기판을 처리실 내에 반입하는 공정과,상기 금속막을 포함한 기판 표면에 실리콘을 포함한 산화막을 형성하는 공정을 적어도 구비한 반도체 장치의 제조 방법으로서,상기 산화막의 형성 공정은,상기 기판을 소정의 온도로 가열하면서 실리콘 원자를 포함한 제1 반응 물질을 상기 처리실 내에 공급하는 공정과,상기 기판을 상기 소정의 온도로 가열하면서 산소 원자를 포함한 제2 반응 물질과 수소를 상기 처리실 내에 공급하는 공정을 갖고,상기 산화막의 형성 공정에서는,상기 제1 반응 물질의 공급과 상기 제2 반응 물질 및 상기 수소의 공급을 교대로 여러 차례 반복하여 상기 산화막을 형성하며,상기 산화막의 형성 공정에서는,상기 산화막의 두께가 원하는 두께에 이른 후에는,상기 제2 반응 물질 및 상기 수소의 공급 공정에 있어서, 상기 수소의 공급을 행하지 않고 상기 산화막을 형성하는 반도체 장치의 제조 방법.
- 청구항 4에 있어서,상기 원하는 두께가 다음 식으로 정의되는 X0인 반도체 장치의 제조 방법.X0=B/A×t단, 「B/A」=Ce-E2/kT이고, 「C」=18.35Å/초이며, 「E2」=7.5×10-2eV이고, 「k」는 볼츠만 상수로서 k=8.62×10-5eVK-1이며, 「t」는 상기 제2 반응 물질의 공급 시간이다.
- 청구항 4에 있어서,상기 소정의 온도가 300℃이고,상기 제2 반응 물질이 오존이며,상기 산화막의 형성 공정에서는,상기 산화막의 두께가 20Å에 이를 때까지 상기 제2 반응 물질 및 상기 수소의 공급 공정에 있어서 상기 수소를 상기 처리실 내에 공급하고,상기 산화막의 두께가 20Å에 이른 후에는 상기 제2 반응 물질 및 상기 수소의 공급 공정에 있어서, 상기 수소의 상기 처리실 내로의 공급을 행하지 않고 상기 산화막을 형성하는 반도체 장치의 제조 방법.
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