JP2017515885A - モリブデンシルシクロペンタジエニル錯体、シリルアリル錯体、及び、薄膜堆積におけるその使用 - Google Patents
モリブデンシルシクロペンタジエニル錯体、シリルアリル錯体、及び、薄膜堆積におけるその使用 Download PDFInfo
- Publication number
- JP2017515885A JP2017515885A JP2016575311A JP2016575311A JP2017515885A JP 2017515885 A JP2017515885 A JP 2017515885A JP 2016575311 A JP2016575311 A JP 2016575311A JP 2016575311 A JP2016575311 A JP 2016575311A JP 2017515885 A JP2017515885 A JP 2017515885A
- Authority
- JP
- Japan
- Prior art keywords
- hydrogen
- butyl
- trialkylsilyl
- alkyl
- trimethylsilyl
- 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.)
- Granted
Links
- 238000000427 thin-film deposition Methods 0.000 title abstract description 5
- 229910052739 hydrogen Inorganic materials 0.000 claims abstract description 83
- 239000001257 hydrogen Substances 0.000 claims abstract description 82
- 125000000217 alkyl group Chemical group 0.000 claims abstract description 45
- 125000004665 trialkylsilyl group Chemical group 0.000 claims abstract description 44
- 229910052750 molybdenum Inorganic materials 0.000 claims abstract description 19
- 239000011733 molybdenum Substances 0.000 claims abstract description 19
- ZOKXTWBITQBERF-UHFFFAOYSA-N Molybdenum Chemical compound [Mo] ZOKXTWBITQBERF-UHFFFAOYSA-N 0.000 claims abstract description 16
- 238000000034 method Methods 0.000 claims description 81
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 claims description 50
- 238000000231 atomic layer deposition Methods 0.000 claims description 42
- 239000000758 substrate Substances 0.000 claims description 35
- 125000002524 organometallic group Chemical group 0.000 claims description 34
- 125000000026 trimethylsilyl group Chemical group [H]C([H])([H])[Si]([*])(C([H])([H])[H])C([H])([H])[H] 0.000 claims description 34
- 150000002431 hydrogen Chemical class 0.000 claims description 29
- -1 triethylsilyl Chemical group 0.000 claims description 28
- 239000000376 reactant Substances 0.000 claims description 19
- OAKJQQAXSVQMHS-UHFFFAOYSA-N Hydrazine Chemical compound NN OAKJQQAXSVQMHS-UHFFFAOYSA-N 0.000 claims description 18
- 239000007788 liquid Substances 0.000 claims description 18
- 125000001181 organosilyl group Chemical group [SiH3]* 0.000 claims description 16
- CBENFWSGALASAD-UHFFFAOYSA-N Ozone Chemical compound [O-][O+]=O CBENFWSGALASAD-UHFFFAOYSA-N 0.000 claims description 15
- 125000000484 butyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])C([H])([H])[H] 0.000 claims description 15
- 125000001495 ethyl group Chemical group [H]C([H])([H])C([H])([H])* 0.000 claims description 15
- 125000000959 isobutyl group Chemical group [H]C([H])([H])C([H])(C([H])([H])[H])C([H])([H])* 0.000 claims description 15
- 125000001449 isopropyl group Chemical group [H]C([H])([H])C([H])(*)C([H])([H])[H] 0.000 claims description 15
- 125000001436 propyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])[H] 0.000 claims description 15
- 125000002914 sec-butyl group Chemical group [H]C([H])([H])C([H])([H])C([H])(*)C([H])([H])[H] 0.000 claims description 15
- 238000005229 chemical vapour deposition Methods 0.000 claims description 14
- 125000002496 methyl group Chemical group [H]C([H])([H])* 0.000 claims description 14
- 125000000999 tert-butyl group Chemical group [H]C([H])([H])C(*)(C([H])([H])[H])C([H])([H])[H] 0.000 claims description 14
- 238000007740 vapor deposition Methods 0.000 claims description 13
- 238000002347 injection Methods 0.000 claims description 12
- 239000007924 injection Substances 0.000 claims description 12
- 230000008016 vaporization Effects 0.000 claims description 12
- 229910052760 oxygen Inorganic materials 0.000 claims description 11
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 claims description 8
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 7
- 239000001301 oxygen Substances 0.000 claims description 7
- 125000000025 triisopropylsilyl group Chemical group C(C)(C)[Si](C(C)C)(C(C)C)* 0.000 claims description 6
- 125000001981 tert-butyldimethylsilyl group Chemical group [H]C([H])([H])[Si]([H])(C([H])([H])[H])[*]C(C([H])([H])[H])(C([H])([H])[H])C([H])([H])[H] 0.000 claims description 5
- 229910021529 ammonia Inorganic materials 0.000 claims description 4
- 229910044991 metal oxide Inorganic materials 0.000 claims description 3
- 150000004706 metal oxides Chemical class 0.000 claims description 3
- BLRPTPMANUNPDV-UHFFFAOYSA-N Silane Chemical compound [SiH4] BLRPTPMANUNPDV-UHFFFAOYSA-N 0.000 claims description 2
- 239000003570 air Substances 0.000 claims description 2
- 230000008569 process Effects 0.000 claims description 2
- 229910000077 silane Inorganic materials 0.000 claims description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 2
- RHUYHJGZWVXEHW-UHFFFAOYSA-N 1,1-Dimethyhydrazine Chemical compound CN(C)N RHUYHJGZWVXEHW-UHFFFAOYSA-N 0.000 claims 2
- 150000004696 coordination complex Chemical class 0.000 claims 2
- BTBUEUYNUDRHOZ-UHFFFAOYSA-N Borate Chemical compound [O-]B([O-])[O-] BTBUEUYNUDRHOZ-UHFFFAOYSA-N 0.000 claims 1
- 150000002751 molybdenum Chemical class 0.000 abstract description 4
- 125000004435 hydrogen atom Chemical class [H]* 0.000 abstract description 2
- 239000000203 mixture Substances 0.000 description 29
- 239000010408 film Substances 0.000 description 27
- 239000000243 solution Substances 0.000 description 25
- 239000002243 precursor Substances 0.000 description 23
- 238000006243 chemical reaction Methods 0.000 description 21
- 239000010409 thin film Substances 0.000 description 19
- WEVYAHXRMPXWCK-UHFFFAOYSA-N Acetonitrile Chemical compound CC#N WEVYAHXRMPXWCK-UHFFFAOYSA-N 0.000 description 18
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 18
- WYURNTSHIVDZCO-UHFFFAOYSA-N Tetrahydrofuran Chemical compound C1CCOC1 WYURNTSHIVDZCO-UHFFFAOYSA-N 0.000 description 14
- 239000007787 solid Substances 0.000 description 13
- 238000000151 deposition Methods 0.000 description 12
- VLKZOEOYAKHREP-UHFFFAOYSA-N n-Hexane Chemical compound CCCCCC VLKZOEOYAKHREP-UHFFFAOYSA-N 0.000 description 12
- 239000007789 gas Substances 0.000 description 11
- 229910052757 nitrogen Inorganic materials 0.000 description 11
- 239000002904 solvent Substances 0.000 description 11
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- 239000002184 metal Substances 0.000 description 10
- 238000010926 purge Methods 0.000 description 10
- 230000008021 deposition Effects 0.000 description 9
- 229910000104 sodium hydride Inorganic materials 0.000 description 9
- 239000000463 material Substances 0.000 description 8
- 238000002411 thermogravimetry Methods 0.000 description 8
- 125000003903 2-propenyl group Chemical group [H]C([*])([H])C([H])=C([H])[H] 0.000 description 7
- 238000000576 coating method Methods 0.000 description 7
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- YXFVVABEGXRONW-UHFFFAOYSA-N Toluene Chemical compound CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 description 6
- UORVGPXVDQYIDP-UHFFFAOYSA-N borane Chemical compound B UORVGPXVDQYIDP-UHFFFAOYSA-N 0.000 description 6
- 125000004432 carbon atom Chemical group C* 0.000 description 6
- 239000012159 carrier gas Substances 0.000 description 6
- 239000003446 ligand Substances 0.000 description 6
- 229910000476 molybdenum oxide Inorganic materials 0.000 description 6
- PQQKPALAQIIWST-UHFFFAOYSA-N oxomolybdenum Chemical class [Mo]=O PQQKPALAQIIWST-UHFFFAOYSA-N 0.000 description 6
- 239000000725 suspension Substances 0.000 description 6
- 125000003342 alkenyl group Chemical group 0.000 description 5
- 150000002430 hydrocarbons Chemical class 0.000 description 5
- 230000008018 melting Effects 0.000 description 5
- 238000002844 melting Methods 0.000 description 5
- 239000002244 precipitate Substances 0.000 description 5
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- 239000003921 oil Substances 0.000 description 4
- 150000004756 silanes Chemical class 0.000 description 4
- 238000003756 stirring Methods 0.000 description 4
- 239000004215 Carbon black (E152) Substances 0.000 description 3
- 229910004298 SiO 2 Inorganic materials 0.000 description 3
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 3
- KEAYESYHFKHZAL-UHFFFAOYSA-N Sodium Chemical compound [Na] KEAYESYHFKHZAL-UHFFFAOYSA-N 0.000 description 3
- 125000003545 alkoxy group Chemical group 0.000 description 3
- 150000001412 amines Chemical class 0.000 description 3
- 229910052786 argon Inorganic materials 0.000 description 3
- GPBUGPUPKAGMDK-UHFFFAOYSA-N azanylidynemolybdenum Chemical compound [Mo]#N GPBUGPUPKAGMDK-UHFFFAOYSA-N 0.000 description 3
- 230000004888 barrier function Effects 0.000 description 3
- 150000001875 compounds Chemical class 0.000 description 3
- VHTUUTHYXRLKLY-UHFFFAOYSA-N cyclopenta-1,3-dien-1-yl(trimethyl)silane Chemical compound C[Si](C)(C)C1=CC=CC1 VHTUUTHYXRLKLY-UHFFFAOYSA-N 0.000 description 3
- 239000006185 dispersion Substances 0.000 description 3
- 238000002474 experimental method Methods 0.000 description 3
- 150000002429 hydrazines Chemical class 0.000 description 3
- 229930195733 hydrocarbon Natural products 0.000 description 3
- 239000012299 nitrogen atmosphere Substances 0.000 description 3
- 238000002360 preparation method Methods 0.000 description 3
- 239000004065 semiconductor Substances 0.000 description 3
- 229910052710 silicon Inorganic materials 0.000 description 3
- 239000010703 silicon Substances 0.000 description 3
- 239000002356 single layer Substances 0.000 description 3
- 239000011780 sodium chloride Substances 0.000 description 3
- 239000012312 sodium hydride Substances 0.000 description 3
- 238000006557 surface reaction Methods 0.000 description 3
- 238000001757 thermogravimetry curve Methods 0.000 description 3
- VEDJZFSRVVQBIL-UHFFFAOYSA-N trisilane Chemical compound [SiH3][SiH2][SiH3] VEDJZFSRVVQBIL-UHFFFAOYSA-N 0.000 description 3
- MCSXGCZMEPXKIW-UHFFFAOYSA-N 3-hydroxy-4-[(4-methyl-2-nitrophenyl)diazenyl]-N-(3-nitrophenyl)naphthalene-2-carboxamide Chemical compound Cc1ccc(N=Nc2c(O)c(cc3ccccc23)C(=O)Nc2cccc(c2)[N+]([O-])=O)c(c1)[N+]([O-])=O MCSXGCZMEPXKIW-UHFFFAOYSA-N 0.000 description 2
- HBBGRARXTFLTSG-UHFFFAOYSA-N Lithium ion Chemical compound [Li+] HBBGRARXTFLTSG-UHFFFAOYSA-N 0.000 description 2
- IMNFDUFMRHMDMM-UHFFFAOYSA-N N-Heptane Chemical compound CCCCCCC IMNFDUFMRHMDMM-UHFFFAOYSA-N 0.000 description 2
- DKGAVHZHDRPRBM-UHFFFAOYSA-N Tert-Butanol Chemical compound CC(C)(C)O DKGAVHZHDRPRBM-UHFFFAOYSA-N 0.000 description 2
- 125000000304 alkynyl group Chemical group 0.000 description 2
- 125000003118 aryl group Chemical group 0.000 description 2
- 125000004104 aryloxy group Chemical group 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
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- 239000003990 capacitor Substances 0.000 description 2
- 239000011203 carbon fibre reinforced carbon Substances 0.000 description 2
- 239000003054 catalyst Substances 0.000 description 2
- QXYJCZRRLLQGCR-UHFFFAOYSA-N dioxomolybdenum Chemical compound O=[Mo]=O QXYJCZRRLLQGCR-UHFFFAOYSA-N 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 229910001416 lithium ion Inorganic materials 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- JKQOBWVOAYFWKG-UHFFFAOYSA-N molybdenum trioxide Chemical compound O=[Mo](=O)=O JKQOBWVOAYFWKG-UHFFFAOYSA-N 0.000 description 2
- BKIMMITUMNQMOS-UHFFFAOYSA-N nonane Chemical compound CCCCCCCCC BKIMMITUMNQMOS-UHFFFAOYSA-N 0.000 description 2
- 230000003647 oxidation Effects 0.000 description 2
- 238000007254 oxidation reaction Methods 0.000 description 2
- 125000002924 primary amino group Chemical group [H]N([H])* 0.000 description 2
- 239000000047 product Substances 0.000 description 2
- 239000011253 protective coating Substances 0.000 description 2
- 239000011734 sodium Substances 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 229910052721 tungsten Inorganic materials 0.000 description 2
- 239000010937 tungsten Substances 0.000 description 2
- 229930195735 unsaturated hydrocarbon Natural products 0.000 description 2
- DIIIISSCIXVANO-UHFFFAOYSA-N 1,2-Dimethylhydrazine Chemical compound CNNC DIIIISSCIXVANO-UHFFFAOYSA-N 0.000 description 1
- 125000004972 1-butynyl group Chemical group [H]C([H])([H])C([H])([H])C#C* 0.000 description 1
- GFKPUBMTEHCQIW-UHFFFAOYSA-N 2-(bromomethyl)-3,3-dimethylbut-1-ene Chemical compound CC(C)(C)C(=C)CBr GFKPUBMTEHCQIW-UHFFFAOYSA-N 0.000 description 1
- 125000004974 2-butenyl group Chemical group C(C=CC)* 0.000 description 1
- 125000000069 2-butynyl group Chemical group [H]C([H])([H])C#CC([H])([H])* 0.000 description 1
- DCERHCFNWRGHLK-UHFFFAOYSA-N C[Si](C)C Chemical compound C[Si](C)C DCERHCFNWRGHLK-UHFFFAOYSA-N 0.000 description 1
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Classifications
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07F—ACYCLIC, CARBOCYCLIC OR HETEROCYCLIC COMPOUNDS CONTAINING ELEMENTS OTHER THAN CARBON, HYDROGEN, HALOGEN, OXYGEN, NITROGEN, SULFUR, SELENIUM OR TELLURIUM
- C07F19/00—Metal compounds according to more than one of main groups C07F1/00 - C07F17/00
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07F—ACYCLIC, CARBOCYCLIC OR HETEROCYCLIC COMPOUNDS CONTAINING ELEMENTS OTHER THAN CARBON, HYDROGEN, HALOGEN, OXYGEN, NITROGEN, SULFUR, SELENIUM OR TELLURIUM
- C07F11/00—Compounds containing elements of Groups 6 or 16 of the Periodic System
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07F—ACYCLIC, CARBOCYCLIC OR HETEROCYCLIC COMPOUNDS CONTAINING ELEMENTS OTHER THAN CARBON, HYDROGEN, HALOGEN, OXYGEN, NITROGEN, SULFUR, SELENIUM OR TELLURIUM
- C07F7/00—Compounds containing elements of Groups 4 or 14 of the Periodic System
- C07F7/02—Silicon compounds
- C07F7/08—Compounds having one or more C—Si linkages
- C07F7/0803—Compounds with Si-C or Si-Si linkages
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- C—CHEMISTRY; METALLURGY
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Abstract
Description
本出願は2014年3月13日に出願された米国仮出願第61/952,633に基づく利益を主張し、米国仮出願第61/952,633の全開示は参照により本明細書に組み入れられる。
本発明は、モリブデン(Mo)シリルシクロペンタジエニル錯体、シリルアリル錯体、及び、前記錯体を使用して気相堆積(CVD)又は原子層堆積(ALD)により薄膜を調製する方法に関する。
種々の有機金属前駆体が、誘電性金属薄膜を形成するために用いられている。種々の技術が薄膜の堆積のために使用されている。このような技術には、反応性スパッタリング、イオンアシスト堆積、ゾル−ゲル堆積、CVD(金属有機CVD又はMOCVDとしても知られている)、及びALD(原子層エピタキシーとしても知られている)が含まれる。CVD及びALD法は、それらが良好な組成制御、高い薄膜の均一性、良好なドーピング制御という利点を有するため、ますます多く使用されており、特に、高度に非平面性の超小型電子デバイスの形状に対して、非常に優れたコンフォーマル性の段差被覆を提供する。
一実施態様においては、式Iの構造に相当する有機金属錯体を提供する。
図1は、Me3SiCpMo(CO)2(2−Me−アリル)の質量損失%対温度を示す熱重量分析(TGA)データのグラフである。
本発明の種々の局面において、Mo(II)錯体のようなMo錯体、このような錯体を作製する方法、及びこのような錯体を使用して、Mo、MoN、Mo2N、MoN/Mo2N、MoO2、MoO3、及び、MoO2/MoO3膜を形成する方法を提供する。
本明細書で使用される場合、用語「前駆体」は、基板上を通過し、例えば、CVD又はALDのような堆積法により薄膜を形成する、有機金属分子、錯体及び/又は化合物に関する。
第1の実施態様では、式Iの構造に相当する有機金属前駆体を提供する:
別の実施態様では、気相堆積法によるモリブデン含有膜を形成する方法を提供する。本発明の方法は、本明細書に開示されたような式Iの構造に相当する1以上の有機金属錯体を気化する工程を含む。例えば、この方法は、1以上の錯体を気化し、1以上の錯体を基板表面に運ぶ、又は、1以上の錯体を基板上を通過させ、及び/又は1以上の錯体を基板表面に堆積することを含んでも良い。
(1)基板温度 :50〜600℃
(2)エバポレータ温度(Mo源の温度):0〜200℃
(3)反応圧 :0〜100Torr
(4)アルゴン又は窒素キャリアガス流速:0〜500sccm
(5)酸素流速 :0〜500sccm
(6)水素流速 :0〜500sccm
(7)稼働時間 :膜厚に応じて変化する。
(1)基板温度 :0〜400℃
(2)エバポレータ温度(Mo源の温度):0〜200℃
(3)反応圧 :0〜100Torr
(4)アルゴン又は窒素キャリアガス流速:0〜500sccm
(5)反応ガス流速 :0〜500sccm
(6)パルス列(秒)(錯体/パージ/反応ガス/パージ):チャンバの大きさにより変化する
(7)サイクル数 :所望の膜厚により変化する。
以下の実施例は、単に説明であり、決して本開示を限定するものではない。
全ての実験において、実験中、Mo源を、80sccmの窒素運搬ガス流で90℃に保った。オゾン共反応剤の濃度は、260g/Nm3であり、流速は60sccmであり、1.0秒でパルス供給した。全ての実験において、ベースラインの反応圧は、1.2〜1.5Torrの間である。使用した基板は、Si(SiO2 1K)及び水素終端Si(100)(Si(H−term))上の10nmのSiO2である。典型的な条件を以下に示す:
基板温度:200℃
共反応剤:オゾン
窒素パージ時間:5.0秒間
パルス列:1.0秒 Mo前駆体/5.0秒 N2パージ/1.0秒 オゾン/5.0秒 N2パージ
総サイクル:1000。
ステンレススチールバブラー内において、Me3SiCpMo(CO)2(2−Me−アリル)を90℃になるまで加熱し、キャリアガスとして窒素を使用して、ALD反応器に運び、〜250℃から〜350℃で、〜5秒間パルス供給し、ついで、〜10秒間排気した。オゾン(O3)を酸化剤として使用し、各サイクルで、〜10秒間パルス供給し、〜15秒間排気した。使用した基板は、〜1kÅの熱SiO2及び薄い固有の酸化層を有するシリコンチップであった。ALDの条件は以下の通りである:
基板温度:〜250℃
共反応剤:オゾン
N2キャリアガス流速:Me3SiCpMo(CO)2(2−Me−アリル)及びオゾンのそれぞれに対して、〜10sccm
ベース圧:〜0.53〜0.55Torr
オゾンパルスピーク圧:〜2.5〜2.6Torr
オゾン濃度:〜186〜200g/Nm3
パルス列:〜5.0秒 Me3SiCpMo(CO)2(2−Me−アリル)/〜10.0秒 N2パージ/〜10.0秒 オゾン/〜15.0秒 N2パージ
総サイクル:200。
Claims (42)
- 式1の構造に相当する有機金属錯体であって、
R1、R2、R3、R4、R5、R6、R7、R8、R9及びR10の少なくとも1つは、トリアルキルシリルであり、
R1、R2、R3、R4、及びR5の少なくとも1つがトリアルキルシリルであるとき、R6、R7、R8、R9及びR10の少なくとも1つはアルキル又はトリアルキルシリルであり、かつ、
R1、R2、R3、R4、及びR5がそれぞれ水素であるとき、トリアルキルシリルではないR6、R7、R8、R9及びR10の少なくとも1つは、アルキルである、有機金属錯体。 - R1、R2、R3、R4、R5、R6、R7、R8、R9及びR10のうち1つ又は2つはトリアルキルシリルである、請求項1に記載の有機金属錯体。
- R1、R2、R3、R4、R5、R6、R7、R8、R9及びR10は、水素、C1−C8アルキル、及びトリ(C1−C8アルキル)シリルからなる群から独立して選択される、請求項1又は2に記載の有機金属錯体。
- R1、R2、R3、R4、R5、R6、R7、R8、R9及びR10は、水素、C1−C4アルキル及びトリ(C1−C4アルキル)シリルからなる群から独立して選択される、請求項1〜3のいずれか1項に記載の有機金属錯体。
- R1、R2、R3、R4、R5、R6、R7、R8、R9及びR10は、水素、メチル、エチル、プロピル、イソプロピル、ブチル、イソブチル、sec−ブチル、tert−ブチル、トリメチルシリル、トリエチルシリル、トリイソプロピルシリル及びtert−ブチルジメチルシリルからなる群から独立して選択される、請求項1〜4のいずれか1項に記載の有機金属錯体。
- R1、R2、R3、R4、R5、R6、R7、R8、R9及びR10の1つ又は2つはトリメチルシリルである、請求項1〜5のいずれか1項に記載の有機金属錯体。
- R1はトリメチルシリルであり、R2、R3、R4及びR5は水素である、請求項1〜6のいずれか1項に記載の有機金属錯体。
- R1はトリメチルシリルであり、
R2、R3、R4及びR5は水素であり、
R6、R7、R8、R9及びR10のうちの4つは水素である、請求項1〜7のいずれか1項に記載の有機金属錯体。 - R1はトリメチルシリルであり、
R2、R3、R4、R5、R6、R7、R9及びR10は水素であり、
R8は、メチル、エチル、プロピル、イソプロピル、ブチル、イソブチル、sec−ブチル、tert−ブチル及びトリメチルシリルからなる群から選択される、請求項1〜7のいずれか1項に記載の有機金属錯体。 - R1はトリメチルシリルであり、
R2、R3、R4、R5、R6、R7、R8及びR9は水素であり、
R10は、メチル、エチル、プロピル、イソプロピル、ブチル、イソブチル、sec−ブチル、tert−ブチル及びトリメチルシリルからなる群から選択される、請求項1〜7のいずれか1項に記載の有機金属錯体。 - R1、R2、R3、R4及びR5のうちの1つはトリアルキルシリルであり、R6、R7、R8、R9及びR10のうちの1つはトリアルキルシリルである、請求項1又は2に記載の有機金属錯体。
- R1、R2、R3、R4及びR5のうちの2つはトリアルキルシリルである、請求項1又は2に記載の有機金属錯体。
- R1、R2、R3、R4、R5、R6、R7、R8、R9及びR10のうちの8つが水素である、請求項1又は2に記載の有機金属錯体。
- R1、R2、R3、R4、R5、R6、R7、R8、R9及びR10のうちの1つ又は2つは、トリアルキルシリルである、請求項16に記載の方法。
- R1、R2、R3、R4、R5、R6、R7、R8、R9及びR10は、水素、C1−C8アルキル、及びトリ(C1−C8アルキル)シリルからなる群から独立して選択される、請求項16又は17に記載の方法。
- R1、R2、R3、R4、R5、R6、R7、R8、R9及びR10は、水素、C1−C4アルキル及びトリ(C1−C4アルキル)シリルからなる群から独立して選択される、請求項16〜18のいずれか1項に記載の方法。
- R1、R2、R3、R4、R5、R6、R7、R8、R9及びR10は、水素、メチル、エチル、プロピル、イソプロピル、ブチル、イソブチル、sec−ブチル、tert−ブチル、トリメチルシリル、トリエチルシリル、トリイソプロピルシリル及びtert−ブチルジメチルシリルからなる群から独立して選択される、請求項16〜19のいずれか1項に記載の方法。
- R1、R2、R3、R4、R5、R6、R7、R8、R9及びR10のうちの1つ又は2つは、トリメチルシリルである、請求項16〜20のいずれか1項に記載の方法。
- R1はトリメチルシリルであり、R2、R3、R4及びR5は水素である、請求項16〜21のいずれか1項に記載の方法。
- R1はトリメチルシリルであり、
R2、R3、R4及びR5は水素であり、
R6、R7、R8、R9及びR10のうちの4つ又は5つは水素である、請求項16〜22のいずれか1項に記載の方法。 - R1はトリメチルシリルであり、
R2、R3、R4、R5、R6、R7、R9及びR10は水素であり、
R8は水素、メチル、エチル、プロピル、イソプロピル、ブチル、イソブチル、sec−ブチル、tert−ブチル及びトリメチルシリルからなる群から選択される、請求項16〜23のいずれか1項に記載の方法。 - R1はトリメチルシリルであり、
R2、R3、R4、R5、R6、R7、R8及びR9は水素であり、
R10は、水素、メチル、エチル、プロピル、イソプロピル、ブチル、イソブチル、sec−ブチル、tert−ブチル及びトリメチルシリルからなる群から選択される、請求項16〜23のいずれか1項に記載の方法。 - R1、R2、R3、R4及びR5のうちの1つはトリアルキルシリルであり、R6、R7、R8、R9及びR10のうちの1つはトリアルキルシリルである、請求項16又は17に記載の方法。
- R1、R2、R3、R4及びR5のうちの2つはトリアルキルシリルである、請求項16又は17に記載の方法。
- R1、R2、R3、R4、R5、R6、R7、R8、R9及びR10のうちの8つ又は9つは水素である、請求項16又は17に記載の方法。
- 前記気相堆積法は化学気相堆積法である、請求項16〜30のいずれか1項に記載の方法。
- 前記化学気相堆積法は、パルス化学気相堆積法又は連続フロー化学気相堆積法である、請求項31に記載の方法。
- 前記化学気相堆積法は液体注入化学気相堆積法である、請求項31に記載の方法。
- 前記気相堆積法は原子層堆積法である、請求項16〜30のいずれか1項に記載の方法。
- 前記原子層堆積法は、液体注入原子層堆積法又はプラズマ利用原子層堆積法である、請求項34に記載の方法。
- 少なくとも1つの前記有機金属錯体は、酸素源のパルスと交互になったパルスで基板に運ばれ、金属酸化物膜を形成する、請求項16〜35のいずれか1項に記載の方法。
- 前記酸素源は、H2O、空気、O2及びオゾンからなる群から選択される、請求項36に記載の方法。
- 少なくとも1つの共有機金属錯体を気化し、酸化金属膜を形成する工程をさらに含む、請求項16〜37のいずれか1項に記載の方法。
- 水素、水素プラズマ、酸素、空気、水、アンモニア、ヒドラジン、ボレート、シラン、オゾン、及びこれらのいずれか2以上の組み合わせからなる群から選択される、少なくとも1つの共反応剤を気化する工程をさらに含む、請求項38に記載の方法。
- 共反応剤としてヒドラジンを気化する工程をさらに含む、請求項39に記載の方法。
- 前記ヒドラジンは、ヒドラジン(N2H4)又はN,N−ジメチルヒドラジンである、請求項40に記載の方法。
- 前記方法は、DRAM又はCMOS用途に用いられる、請求項16〜41のいずれか1項に記載の方法。
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US11434254B2 (en) | 2021-01-12 | 2022-09-06 | Applied Materials, Inc. | Dinuclear molybdenum precursors for deposition of molybdenum-containing films |
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