JP2009111275A - 酸化ランタン化合物の製造方法 - Google Patents
酸化ランタン化合物の製造方法 Download PDFInfo
- Publication number
- JP2009111275A JP2009111275A JP2007284108A JP2007284108A JP2009111275A JP 2009111275 A JP2009111275 A JP 2009111275A JP 2007284108 A JP2007284108 A JP 2007284108A JP 2007284108 A JP2007284108 A JP 2007284108A JP 2009111275 A JP2009111275 A JP 2009111275A
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- Prior art keywords
- lanthanum
- substrate
- oxide compound
- lanthanum oxide
- aluminum
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- -1 lanthanum oxide compound Chemical class 0.000 title claims abstract description 65
- MRELNEQAGSRDBK-UHFFFAOYSA-N lanthanum oxide Inorganic materials [O-2].[O-2].[O-2].[La+3].[La+3] MRELNEQAGSRDBK-UHFFFAOYSA-N 0.000 title claims abstract description 58
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 38
- 238000000034 method Methods 0.000 title claims abstract description 27
- 229910052746 lanthanum Inorganic materials 0.000 claims abstract description 76
- 239000000758 substrate Substances 0.000 claims abstract description 70
- FZLIPJUXYLNCLC-UHFFFAOYSA-N lanthanum atom Chemical group [La] FZLIPJUXYLNCLC-UHFFFAOYSA-N 0.000 claims abstract description 62
- 229910052760 oxygen Inorganic materials 0.000 claims abstract description 45
- 229910052782 aluminium Inorganic materials 0.000 claims abstract description 34
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims abstract description 34
- 239000001301 oxygen Substances 0.000 claims abstract description 34
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims abstract description 30
- 229910052735 hafnium Inorganic materials 0.000 claims abstract description 12
- VBJZVLUMGGDVMO-UHFFFAOYSA-N hafnium atom Chemical compound [Hf] VBJZVLUMGGDVMO-UHFFFAOYSA-N 0.000 claims abstract description 12
- QCWXUUIWCKQGHC-UHFFFAOYSA-N Zirconium Chemical compound [Zr] QCWXUUIWCKQGHC-UHFFFAOYSA-N 0.000 claims abstract description 11
- 229910052726 zirconium Inorganic materials 0.000 claims abstract description 11
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 claims abstract description 10
- 239000010936 titanium Substances 0.000 claims abstract description 10
- 229910052719 titanium Inorganic materials 0.000 claims abstract description 10
- 238000010438 heat treatment Methods 0.000 claims description 21
- 238000010894 electron beam technology Methods 0.000 claims description 13
- 230000008020 evaporation Effects 0.000 claims description 10
- 238000001704 evaporation Methods 0.000 claims description 10
- 239000004065 semiconductor Substances 0.000 claims description 10
- TWNQGVIAIRXVLR-UHFFFAOYSA-N oxo(oxoalumanyloxy)alumane Chemical compound O=[Al]O[Al]=O TWNQGVIAIRXVLR-UHFFFAOYSA-N 0.000 claims description 9
- 230000008569 process Effects 0.000 claims description 9
- CBENFWSGALASAD-UHFFFAOYSA-N Ozone Chemical compound [O-][O+]=O CBENFWSGALASAD-UHFFFAOYSA-N 0.000 claims description 6
- 229910001026 inconel Inorganic materials 0.000 claims description 6
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 claims description 5
- 229910052710 silicon Inorganic materials 0.000 claims description 5
- 239000010703 silicon Substances 0.000 claims description 5
- 238000007740 vapor deposition Methods 0.000 claims description 5
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 4
- 229910052814 silicon oxide Inorganic materials 0.000 claims description 4
- 238000000151 deposition Methods 0.000 claims description 2
- 150000001875 compounds Chemical class 0.000 claims 1
- 238000010292 electrical insulation Methods 0.000 abstract description 7
- JRDVYNLVMWVSFK-UHFFFAOYSA-N aluminum;titanium Chemical compound [Al+3].[Ti].[Ti].[Ti] JRDVYNLVMWVSFK-UHFFFAOYSA-N 0.000 abstract 1
- 239000010408 film Substances 0.000 description 62
- 229910002091 carbon monoxide Inorganic materials 0.000 description 28
- 239000007789 gas Substances 0.000 description 20
- 238000001451 molecular beam epitaxy Methods 0.000 description 15
- 239000002994 raw material Substances 0.000 description 13
- 230000015572 biosynthetic process Effects 0.000 description 11
- 238000002360 preparation method Methods 0.000 description 11
- 239000003990 capacitor Substances 0.000 description 9
- 238000010586 diagram Methods 0.000 description 9
- LPQOADBMXVRBNX-UHFFFAOYSA-N ac1ldcw0 Chemical compound Cl.C1CN(C)CCN1C1=C(F)C=C2C(=O)C(C(O)=O)=CN3CCSC1=C32 LPQOADBMXVRBNX-UHFFFAOYSA-N 0.000 description 7
- 238000005229 chemical vapour deposition Methods 0.000 description 6
- MYMOFIZGZYHOMD-UHFFFAOYSA-N Dioxygen Chemical compound O=O MYMOFIZGZYHOMD-UHFFFAOYSA-N 0.000 description 5
- 238000007872 degassing Methods 0.000 description 5
- 229910001882 dioxygen Inorganic materials 0.000 description 5
- 229910052751 metal Inorganic materials 0.000 description 5
- 239000002184 metal Substances 0.000 description 5
- 229910017569 La2(CO3)3 Inorganic materials 0.000 description 4
- 238000005566 electron beam evaporation Methods 0.000 description 4
- 238000009413 insulation Methods 0.000 description 4
- NZPIUJUFIFZSPW-UHFFFAOYSA-H lanthanum carbonate Chemical compound [La+3].[La+3].[O-]C([O-])=O.[O-]C([O-])=O.[O-]C([O-])=O NZPIUJUFIFZSPW-UHFFFAOYSA-H 0.000 description 4
- 229960001633 lanthanum carbonate Drugs 0.000 description 4
- YXEUGTSPQFTXTR-UHFFFAOYSA-K lanthanum(3+);trihydroxide Chemical compound [OH-].[OH-].[OH-].[La+3] YXEUGTSPQFTXTR-UHFFFAOYSA-K 0.000 description 4
- 238000004458 analytical method Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 229910052747 lanthanoid Inorganic materials 0.000 description 3
- 150000002602 lanthanoids Chemical class 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 230000003647 oxidation Effects 0.000 description 3
- 238000007254 oxidation reaction Methods 0.000 description 3
- 238000005240 physical vapour deposition Methods 0.000 description 3
- 238000004544 sputter deposition Methods 0.000 description 3
- MZLGASXMSKOWSE-UHFFFAOYSA-N tantalum nitride Chemical compound [Ta]#N MZLGASXMSKOWSE-UHFFFAOYSA-N 0.000 description 3
- PZNSFCLAULLKQX-UHFFFAOYSA-N Boron nitride Chemical compound N#B PZNSFCLAULLKQX-UHFFFAOYSA-N 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 2
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 description 2
- KRHYYFGTRYWZRS-UHFFFAOYSA-N Fluorane Chemical compound F KRHYYFGTRYWZRS-UHFFFAOYSA-N 0.000 description 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- ZOKXTWBITQBERF-UHFFFAOYSA-N Molybdenum Chemical compound [Mo] ZOKXTWBITQBERF-UHFFFAOYSA-N 0.000 description 2
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 2
- 229910052581 Si3N4 Inorganic materials 0.000 description 2
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 2
- 238000004364 calculation method Methods 0.000 description 2
- 229910052799 carbon Inorganic materials 0.000 description 2
- 229910052804 chromium Inorganic materials 0.000 description 2
- 239000011651 chromium Substances 0.000 description 2
- 239000013078 crystal Substances 0.000 description 2
- 230000006378 damage Effects 0.000 description 2
- 230000006866 deterioration Effects 0.000 description 2
- 238000009616 inductively coupled plasma Methods 0.000 description 2
- 238000000004 low energy electron diffraction Methods 0.000 description 2
- 230000007246 mechanism Effects 0.000 description 2
- 229910052750 molybdenum Inorganic materials 0.000 description 2
- 239000011733 molybdenum Substances 0.000 description 2
- 230000001590 oxidative effect Effects 0.000 description 2
- 238000002128 reflection high energy electron diffraction Methods 0.000 description 2
- 238000004574 scanning tunneling microscopy Methods 0.000 description 2
- HQVNEWCFYHHQES-UHFFFAOYSA-N silicon nitride Chemical compound N12[Si]34N5[Si]62N3[Si]51N64 HQVNEWCFYHHQES-UHFFFAOYSA-N 0.000 description 2
- 238000003860 storage Methods 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 241000112130 Arnium Species 0.000 description 1
- 229910052582 BN Inorganic materials 0.000 description 1
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 1
- 206010021143 Hypoxia Diseases 0.000 description 1
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 1
- OGIIWTRTOXDWEH-UHFFFAOYSA-N [O].[O-][O+]=O Chemical compound [O].[O-][O+]=O OGIIWTRTOXDWEH-UHFFFAOYSA-N 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 238000010306 acid treatment Methods 0.000 description 1
- 150000004645 aluminates Chemical class 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000000470 constituent Substances 0.000 description 1
- 230000001276 controlling effect Effects 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000008021 deposition Effects 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 230000005669 field effect Effects 0.000 description 1
- 229910000449 hafnium oxide Inorganic materials 0.000 description 1
- WIHZLLGSGQNAGK-UHFFFAOYSA-N hafnium(4+);oxygen(2-) Chemical compound [O-2].[O-2].[Hf+4] WIHZLLGSGQNAGK-UHFFFAOYSA-N 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 238000011065 in-situ storage Methods 0.000 description 1
- 150000002500 ions Chemical class 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 229910044991 metal oxide Inorganic materials 0.000 description 1
- 150000004706 metal oxides Chemical class 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 229910052759 nickel Inorganic materials 0.000 description 1
- 229910052758 niobium Inorganic materials 0.000 description 1
- 239000010955 niobium Substances 0.000 description 1
- GUCVJGMIXFAOAE-UHFFFAOYSA-N niobium atom Chemical compound [Nb] GUCVJGMIXFAOAE-UHFFFAOYSA-N 0.000 description 1
- 229910052698 phosphorus Inorganic materials 0.000 description 1
- 239000011574 phosphorus Substances 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 238000005001 rutherford backscattering spectroscopy Methods 0.000 description 1
- 241000894007 species Species 0.000 description 1
- 238000000992 sputter etching Methods 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
- 239000010409 thin film Substances 0.000 description 1
- 229910052723 transition metal Inorganic materials 0.000 description 1
- 229910000687 transition metal group alloy Inorganic materials 0.000 description 1
- 150000003624 transition metals Chemical class 0.000 description 1
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- H—ELECTRICITY
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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
- H01L21/02104—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
- H01L21/02172—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 at least one metal element, e.g. metal oxides, metal nitrides, metal oxynitrides or metal carbides
- H01L21/02175—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 at least one metal element, e.g. metal oxides, metal nitrides, metal oxynitrides or metal carbides characterised by the metal
- H01L21/02192—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 at least one metal element, e.g. metal oxides, metal nitrides, metal oxynitrides or metal carbides characterised by the metal the material containing at least one rare earth metal element, e.g. oxides of lanthanides, scandium or yttrium
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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
- 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
- C23C14/00—Coating by vacuum evaporation, by sputtering or by ion implantation of the coating forming material
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- C23C14/08—Oxides
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- 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
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- 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
- C23C14/00—Coating by vacuum evaporation, by sputtering or by ion implantation of the coating forming material
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- 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
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Abstract
【解決手段】酸化ランタン化合物を形成する雰囲気中のH2O分子、CO分子、及びCO2分子を、ランタン原子1個に対してそれぞれ1/2個,1/5個,及び1/10個以下とし、次いで、前記基板に対して、ランタンと、アルミニウム、チタン、ジルコニウム及びハフニウムからなる群より選ばれる少なくとも一種と、ランタン原子1個に対して20個以上の酸素分子を含むようにして酸素とを同時に供給し、前記基板上に、前記アルミニウム、前記チタン、前記ジルコニウム及び前記ハフニウムからなる群より選ばれる少なくとも一種を含む前記酸化ランタン化合物を形成する。
【選択図】図1
Description
奈良 安雄、応用物理,Vol.76,No9,1006(2007)
前記酸化ランタン化合物を形成する雰囲気中のH2O分子、CO分子、及びCO2分子を、ランタン原子1個に対してそれぞれ1/2個,1/5個,及び1/10個以下とする工程と、前記基板に対して、ランタンと、アルミニウム、チタン、ジルコニウム及びハフニウムからなる群より選ばれる少なくとも一種と、ランタン原子1個に対して20個以上の酸素分子を含むようにして酸素とを同時に供給し、前記基板上に、前記アルミニウム、前記チタン、前記ジルコニウム及び前記ハフニウムからなる群より選ばれる少なくとも一種を含む前記酸化ランタン化合物を形成する工程と、を具えることを特徴とする、酸化ランタン化合物の製造方法に関する。
図1は、本実施形態に係わる製造方法において使用するMBE装置を概略的に示す構成図である。但し、図1に示すMBE装置は一例であって、前記製造方法はかかるMBE装置のみにおいて実施できるものではなく、他の構成のMBE装置を含む任意の装置を用いて実施することができる。
について説明する。ランタンアルミネートの原料であるランタン及びアルニウムの供給にはそれぞれKセル14及び16を用いた。また、基板9には、n型のSi基板を用いた。
(Metal-Insulator-Semiconductor)キャパシタを各実験例で得たLAO膜24毎に作製した。MISキャパシタの概略図を図2に示す。なお、LAO膜24上にモリブデン電極25を形成し、Si基板9の裏面にはアルミニウム電極26を形成した。なお、これらの形成には、それぞれ電子線蒸着法と抵抗加熱法を用いた。
2 四重極型質量分析計
3 膜厚測定計
4 酸素供給バルブ
5 マスフローコントローラ
6 酸素ラジカル源
7 酸素ガスの供給配管
8 オゾン生成器
9 基板
10 ホルダー
11 基板とホルダーとの接触部
12 基板用ヒータ
13 基板シャッター
14 Kセル(ランタン)
15 Kセル(チタニウム)
16 Kセル(アルミニウム)
17 電子線加熱蒸着源(ハフニウム)
18 電子線加熱蒸着源(ジルコニウム)
19 電子線加熱蒸着源(ランタン)
20 準備チャンバー
21 ゲートバルブ
22 デガス用ヒータ
23 Kセルシャッター
24 電子線加熱蒸着源シャッター
Claims (12)
- 基板上に酸化ランタン化合物を製造する方法であって、
前記酸化ランタン化合物を形成する雰囲気中のH2O分子、CO分子、及びCO2分子を、ランタン原子1個に対してそれぞれ1/2個,1/5個,及び1/10個以下とする工程と、
前記基板に対して、ランタンと、アルミニウム、チタン、ジルコニウム及びハフニウムからなる群より選ばれる少なくとも一種と、ランタン原子1個に対して20個以上の酸素分子を含むようにして酸素とを同時に供給し、前記基板上に、前記アルミニウム、前記チタン、前記ジルコニウム及び前記ハフニウムからなる群より選ばれる少なくとも一種を含む前記酸化ランタン化合物を形成する工程と、
を具えることを特徴とする、酸化ランタン化合物の製造方法。 - 前記ランタン、前記アルミニウム及び前記チタンの少なくとも一つは、電子線加熱蒸着法またはクヌーセンセルを用いた分子線蒸着法により、前記基板に供給することを特徴とする、請求項1に記載の酸化ランタン化合物の製造方法。
- 前記ジルコニウム及び前記ハフニウムの少なくとも一方は、電子線加熱蒸着法により前記基板に供給することを特徴とする、請求項1又は2に記載の酸化ランタン化合物の製造方法。
- 前記ランタンを前記基板に供給する以前に、その供給源を前記真空中で900℃以上の温度に加熱することを特徴とする、請求項1〜3のいずれか一に記載の酸化ランタン化合物の製造方法。
- 前記酸素は、酸素ラジカル及びオゾンの少なくとも一方であることを特徴とする、請求項1〜4のいずれか一に記載の酸化ランタン化合物の製造方法。
- 前記基板上に前記酸化ランタン化合物を形成する以前に、前記基板を100℃以上に加熱する工程を具えることを特徴とする、請求項1〜5のいずれか一に記載の酸化ランタン化合物の製造方法。
- 前記アルミニウムを、前記クヌーセンセルを用いた分子線蒸着法によって供給する際に、前記クヌーセンセルの開口部の温度を、前記クヌーセンセルの底部の温度よりも高くすることを特徴とする、請求項2に記載の酸化ランタン化合物の製造方法。
- 前記アルミニウムを、前記クヌーセンセルを用いた分子線蒸着法によって供給する際に、
前記クヌーセンセルの開口部を狭窄することを特徴とする、請求項2に記載の酸化ランタン化合物の製造方法。 - 前記基板は、インコネルを含むホルダーで保持することを特徴とする、請求項1〜8のいずれか一に記載の酸化ランタン化合物の製造方法。
- 前記ホルダーの、前記基板と接触する保持部は、酸化アルミニウム及び酸化シリコンの少なくとも一方を含むことを特徴とする、請求項9に酸化ランタン化合物の製造方法。
- 前記基板は、半導体基板であることを特徴とする、請求項1〜10のいずれか一に記載の酸化ランタン化合物の製造方法。
- 前記半導体基板は、シリコン基板であることを特徴とする、請求項11に記載の酸化ランタン化合物の製造方法。
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KR1020080107350A KR20090045106A (ko) | 2007-10-31 | 2008-10-30 | 산화란타늄 화합물의 제조 방법 |
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JP5178152B2 (ja) * | 2007-11-05 | 2013-04-10 | 株式会社東芝 | 相補型半導体装置及びその製造方法 |
TW200949939A (en) * | 2008-05-23 | 2009-12-01 | Sigma Aldrich Co | High-k dielectric films and methods of producing using titanium-based β -diketonate precursors |
TWI467045B (zh) * | 2008-05-23 | 2015-01-01 | Sigma Aldrich Co | 高介電常數電介質薄膜與使用鈰基前驅物製造高介電常數電介質薄膜之方法 |
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