KR20020001337A - 반도체 소자의 게이트산화막 형성 방법 - Google Patents
반도체 소자의 게이트산화막 형성 방법 Download PDFInfo
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- 238000000034 method Methods 0.000 title claims abstract description 49
- 239000004065 semiconductor Substances 0.000 title claims abstract description 42
- 238000004519 manufacturing process Methods 0.000 claims abstract description 27
- 238000005229 chemical vapour deposition Methods 0.000 claims abstract description 18
- 238000000231 atomic layer deposition Methods 0.000 claims abstract description 14
- 239000000758 substrate Substances 0.000 claims abstract description 14
- 238000000137 annealing Methods 0.000 claims abstract description 7
- 238000000151 deposition Methods 0.000 claims description 15
- 238000010438 heat treatment Methods 0.000 claims description 13
- 239000012298 atmosphere Substances 0.000 claims description 12
- 230000008021 deposition Effects 0.000 claims description 6
- 229910052735 hafnium Inorganic materials 0.000 claims description 6
- 229910052760 oxygen Inorganic materials 0.000 claims description 6
- 239000007858 starting material Substances 0.000 claims description 6
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 5
- VBJZVLUMGGDVMO-UHFFFAOYSA-N hafnium atom Chemical compound [Hf] VBJZVLUMGGDVMO-UHFFFAOYSA-N 0.000 claims description 5
- 239000001301 oxygen Substances 0.000 claims description 5
- 229910018072 Al 2 O 3 Inorganic materials 0.000 claims description 4
- 239000007789 gas Substances 0.000 claims description 4
- 150000004767 nitrides Chemical class 0.000 claims description 4
- 125000006850 spacer group Chemical group 0.000 claims description 4
- 230000005284 excitation Effects 0.000 claims description 2
- 238000010926 purge Methods 0.000 claims description 2
- 238000007669 thermal treatment Methods 0.000 claims description 2
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims 4
- 235000012239 silicon dioxide Nutrition 0.000 claims 2
- 239000000377 silicon dioxide Substances 0.000 claims 2
- 239000012299 nitrogen atmosphere Substances 0.000 claims 1
- CJNBYAVZURUTKZ-UHFFFAOYSA-N hafnium(IV) oxide Inorganic materials O=[Hf]=O CJNBYAVZURUTKZ-UHFFFAOYSA-N 0.000 abstract description 4
- 238000001704 evaporation Methods 0.000 abstract 1
- 238000009413 insulation Methods 0.000 abstract 1
- 239000010408 film Substances 0.000 description 42
- 229910004298 SiO 2 Inorganic materials 0.000 description 9
- 229910021420 polycrystalline silicon Inorganic materials 0.000 description 7
- 229920005591 polysilicon Polymers 0.000 description 7
- 229910052751 metal Inorganic materials 0.000 description 5
- 239000002184 metal Substances 0.000 description 5
- 239000010410 layer Substances 0.000 description 4
- 229910010413 TiO 2 Inorganic materials 0.000 description 3
- 238000006243 chemical reaction Methods 0.000 description 3
- 230000007423 decrease Effects 0.000 description 3
- 229910052721 tungsten Inorganic materials 0.000 description 3
- 230000005641 tunneling Effects 0.000 description 3
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000005530 etching Methods 0.000 description 2
- 238000005240 physical vapour deposition Methods 0.000 description 2
- 229910021332 silicide Inorganic materials 0.000 description 2
- FVBUAEGBCNSCDD-UHFFFAOYSA-N silicide(4-) Chemical compound [Si-4] FVBUAEGBCNSCDD-UHFFFAOYSA-N 0.000 description 2
- 229910052710 silicon Inorganic materials 0.000 description 2
- 239000010703 silicon Substances 0.000 description 2
- LIVNPJMFVYWSIS-UHFFFAOYSA-N silicon monoxide Inorganic materials [Si-]#[O+] LIVNPJMFVYWSIS-UHFFFAOYSA-N 0.000 description 2
- 229910004140 HfO Inorganic materials 0.000 description 1
- -1 Si 3 N 4 Inorganic materials 0.000 description 1
- 229910018557 Si O Inorganic materials 0.000 description 1
- 229910052581 Si3N4 Inorganic materials 0.000 description 1
- 241001365914 Taira Species 0.000 description 1
- 229910010037 TiAlN Inorganic materials 0.000 description 1
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 229910021417 amorphous silicon Inorganic materials 0.000 description 1
- 239000003990 capacitor Substances 0.000 description 1
- 239000010941 cobalt Substances 0.000 description 1
- 229910017052 cobalt Inorganic materials 0.000 description 1
- GUTLYIVDDKVIGB-UHFFFAOYSA-N cobalt atom Chemical compound [Co] GUTLYIVDDKVIGB-UHFFFAOYSA-N 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000003989 dielectric material Substances 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 150000002500 ions Chemical class 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000001590 oxidative effect Effects 0.000 description 1
- 238000000059 patterning Methods 0.000 description 1
- 238000005268 plasma chemical vapour deposition Methods 0.000 description 1
- 238000005546 reactive sputtering Methods 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- HQVNEWCFYHHQES-UHFFFAOYSA-N silicon nitride Chemical compound N12[Si]34N5[Si]62N3[Si]51N64 HQVNEWCFYHHQES-UHFFFAOYSA-N 0.000 description 1
- 229910052814 silicon oxide Inorganic materials 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 239000002344 surface layer Substances 0.000 description 1
- 239000010409 thin film Substances 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
- 239000010937 tungsten Substances 0.000 description 1
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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 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
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- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L29/00—Semiconductor devices adapted for rectifying, amplifying, oscillating or switching, or capacitors or resistors with at least one potential-jump barrier or surface barrier, e.g. PN junction depletion layer or carrier concentration layer; Details of semiconductor bodies or of electrodes thereof ; Multistep manufacturing processes therefor
- H01L29/40—Electrodes ; Multistep manufacturing processes therefor
- H01L29/43—Electrodes ; Multistep manufacturing processes therefor characterised by the materials of which they are formed
- H01L29/49—Metal-insulator-semiconductor electrodes, e.g. gates of MOSFET
- H01L29/51—Insulating materials associated therewith
- H01L29/517—Insulating materials associated therewith the insulating material comprising a metallic compound, e.g. metal oxide, metal silicate
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- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
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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
- 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
- C23C16/40—Oxides
- C23C16/405—Oxides of refractory metals or yttrium
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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
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- 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
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- 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
- H01L21/28—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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- 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
- H01L21/28—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
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- 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
- H01L21/316—Inorganic layers composed of oxides or glassy oxides or oxide based glass
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- H01L29/00—Semiconductor devices adapted for rectifying, amplifying, oscillating or switching, or capacitors or resistors with at least one potential-jump barrier or surface barrier, e.g. PN junction depletion layer or carrier concentration layer; Details of semiconductor bodies or of electrodes thereof ; Multistep manufacturing processes therefor
- H01L29/66—Types of semiconductor device ; Multistep manufacturing processes therefor
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- H01L29/66075—Multistep manufacturing processes of devices having semiconductor bodies comprising group 14 or group 13/15 materials
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- H01L29/66409—Unipolar field-effect transistors
- H01L29/66477—Unipolar field-effect transistors with an insulated gate, i.e. MISFET
- H01L29/66545—Unipolar field-effect transistors with an insulated gate, i.e. MISFET using a dummy, i.e. replacement gate in a process wherein at least a part of the final gate is self aligned to the dummy gate
Abstract
Description
Claims (22)
- 반도체 소자의 제조 방법에 있어서,반도체 기판상에 게이트절연막으로서 화학적기상증착법을 이용하여 HfO2막을 증착하는 제 1 단계;상기 HfO2막의 유전율 증가를 위한 어닐링을 실시하는 제 2 단계; 및상기 HfO2막상에 게이트전극을 형성하는 제 3 단계를 포함하여 이루어짐을 특징으로 하는 반도체 소자의 제조 방법.
- 제 1 항에 있어서,상기 제 1 단계는,상기 HfO2막의 출발물질로 하프늄테트라부타옥사이드막을 이용하고, 산소처리를 위한 소스로 O2, N2O 또는 D2O 중 어느 하나를 이용하여 이루어지는 것을 특징으로 하는 반도체 소자의 제조 방법.
- 상기 제 1 단계에서,상기 HfO2막은 플라즈마화학기상증착법을 이용하여 10Å∼90Å의 두께로 형성되는 것을 특징으로 하는 반도체 소자의 제조 방법.
- 제 3 항에 있어서,상기 HfO2막 증착은, 플라즈마소스로 마이크로웨이브 리모트방식을 이용하며, He, Ar, Kr 또는 Xe 중 어느 하나의 여기가스를 사용하여 200∼550℃에서 50∼550W의 파워로 이루어지는 것을 특징으로 하는 반도체 소자의 제조 방법.
- 제 1 항에 있어서,상기 제 2 단계는,O2, N2또는 N2O 분위기에서 20℃∼80℃/초의 램프레이트조건으로 500℃∼800℃에서 10∼120초동안 급속열처리하여 이루어지는 것을 특징으로 하는 반도체 소자의 제조 방법.
- 제 1 항에 있어서,상기 제 2 단계는,450℃∼800℃의 O2, N2또는 N2O 분위기하에서 10∼60분동안 노열처리하여 이루어지는 것을 특징으로 하는 반도체 소자의 제조 방법.
- 제 1 항에 있어서,상기 제 2 단계는,300℃∼500℃에서 1∼20분동안 UV-오존처리하여 이루어지는 것을 특징으로 하는 반도체 소자의 제조 방법.
- 제 1 항에 있어서,상기 제 1 단계전에,상기 반도체기판상에 3Å∼10Å 두께의 실리콘디옥사이드막을 형성하는 것을 특징으로 하는 반도체 소자의 제조 방법.
- 제 8 항에 있어서,상기 실리콘디옥사이드막은,O2또는 N2분위기에서 1atm 또는 0.1∼1Torr의 압력과 700∼900℃의 급속열처리에 의해 형성되는 것을 특징으로 하는 반도체 소자의 제조 방법.
- 반도체 소자의 제조 방법에 있어서,반도체 기판상에 원자층증착법을 이용하여 HfO2막을 증착하는 제 1 단계;상기 HfO2막 표면에 유전율 증가를 위한 어닐링을 실시하는 제 2 단계; 및상기 HfO2막상에 게이트전극을 형성하고, 상기 게이트전극 양측의 반도체 기판에 소오스/드레인을 형성하는 제 3 단계를 포함하여 이루어짐을 특징으로 하는 반도체 소자의 제조 방법.
- 제 10 항에 있어서,상기 제 1 단계에서,상기 HfO2막의 출발물질로 하프늄테트라부타옥사이드, Hf(th)Cl4또는 HfCl4중 어느 하나를 이용하며, 산소처리를 위한 소스로 H2O를 이용하는 것을 특징으로 하는 반도체 소자의 제조 방법.
- 제 11 항에 있어서,상기 출발물질의 도징 및 퍼징시 N2, NH3또는 ND3중 어느 하나의 가스를 이용하는 것을 특징으로 하는 반도체 소자의 제조 방법.
- 제 10 항에 있어서,상기 제 1 단계는,150℃∼550℃의 온도와 0.05Torr∼2Torr의 압력에서 이루어지는 것을 특징으로 하는 반도체 소자의 제조 방법.
- 제 10 항에 있어서,상기 제 2 단계는,O2, N2또는 N2O 분위기에서 20℃∼80℃/초의 램프레이트조건으로 500℃∼800℃에서 10∼120초동안 급속열처리하여 이루어지는 것을 특징으로 하는 반도체소자의 제조 방법.
- 제 10 항에 있어서,상기 제 2 단계는,450℃∼800℃의 O2, N2또는 N2O 분위기하에서 10∼60분동안 노열처리하여 이루어지는 것을 특징으로 하는 반도체 소자의 제조 방법.
- 제 10 항에 있어서,상기 제 2 단계는,300℃∼500℃에서 1∼20분동안 UV-오존처리하여 이루어지는 것을 특징으로 하는 반도체 소자의 제조 방법.
- 반도체 소자의 제조 방법에 있어서,반도체 기판상에 다마신공정을 이용하여 트렌치구조의 스페이서를 형성하는 단계;상기 스페이서의 내측면상에 고유전율 게이트산화막을 형성하는 단계;상기 게이트산화막상에 상기 트렌치구조의 스페이스를 매립하는 게이트전극을 형성하는 단계; 및상기 게이트전극 양측의 반도체 기판에 소오스/드레인을 형성하는 단계를 포함하여 이루어짐을 특징으로 하는 반도체 소자의 제조 방법.
- 제 17 항에 있어서,상기 고유전율 게이트산화막은 산화막/질화막의 적층막, Ta2O5, ZrO2, HfO2, Al2O3, BST 또는 SBT 중 어느 하나를 이용하는 것을 특징으로 하는 반도체 소자의 제조 방법.
- 제 17 항에 있어서,상기 고유전율 게이트산화막은 화학적기상증착법 또는 원자층증착법 중 어느 하나를 이용하여 증착되는 것을 특징으로 하는 반도체 소자의 제조 방법.
- 제 17 항에 있어서,상기 고유전율 게이트산화막 형성후,O2, N2또는 N2O 분위기에서 20℃∼80℃/초의 램프레이트조건으로 500℃∼800℃에서 10∼120초동안 급속열처리하는 것을 특징으로 하는 반도체 소자의 제조 방법.
- 제 17 항에 있어서,상기 고유전율 게이트산화막 형성후,450℃∼800℃의 O2, N2또는 N2O 분위기하에서 10∼60분동안 노열처리하는 것을 특징으로 하는 반도체 소자의 제조 방법.
- 제 17 항에 있어서,상기 고유전율 게이트산화막 형성후,300℃∼500℃에서 1∼20분동안 UV-오존처리하는 것을 특징으로 하는 반도체 소자의 제조 방법.
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US09/883,188 US6511875B2 (en) | 2000-06-28 | 2001-06-19 | Method for making high K dielectric gate for semiconductor device |
US10/298,564 US6664160B2 (en) | 2000-06-28 | 2002-11-19 | Gate structure with high K dielectric |
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KR100944831B1 (ko) * | 2003-10-30 | 2010-03-03 | 도쿄엘렉트론가부시키가이샤 | 반도체 장치의 제조 방법 및 성막 장치 |
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US20030096467A1 (en) | 2003-05-22 |
US20020008297A1 (en) | 2002-01-24 |
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US6511875B2 (en) | 2003-01-28 |
US6664160B2 (en) | 2003-12-16 |
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