JP6471371B2 - 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
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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 (23)
- 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又は2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1〜3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1〜3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8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8又は9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8〜10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8〜10のいずれか1項に記載の方法。 - 前記気相堆積法は化学気相堆積法である、請求項8〜14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、連続フロー化学気相堆積法又は液体注入化学気相堆積法である、請求項15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8〜14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17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し、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8〜18のいずれか1項に記載の方法。
- 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8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、ボラン、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20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み、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21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8〜22のいずれか1項に記載の方法。
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| PCT/US2015/019604 WO2015138390A1 (en) | 2014-03-13 | 2015-03-10 | Molybdenum silylcyclopentadienyl and silylallyl complexes and use thereof in thin film deposition |
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| US10155783B2 (en) | 2013-05-28 | 2018-12-18 | Merck Patent Gmbh | Manganese complexes and use thereof for preparing thin films |
| WO2018046391A1 (en) * | 2016-09-09 | 2018-03-15 | Merck Patent Gmbh | Metal complexes containing allyl ligands |
| KR102727616B1 (ko) * | 2016-10-07 | 2024-11-07 | 삼성전자주식회사 | 유기 금속 전구체, 이를 이용한 막 형성 방법 및 이를 이용한 반도체 장치의 제조 방법 |
| US10453744B2 (en) | 2016-11-23 | 2019-10-22 | Entegris, Inc. | Low temperature molybdenum film deposition utilizing boron nucleation layers |
| US20180142345A1 (en) * | 2016-11-23 | 2018-05-24 | Entegris, Inc. | Low temperature molybdenum film deposition utilizing boron nucleation layers |
| WO2019166318A1 (en) * | 2018-03-02 | 2019-09-06 | Asml Netherlands B.V. | Method and apparatus for forming a patterned layer of material |
| KR102355507B1 (ko) | 2018-11-14 | 2022-01-27 | (주)디엔에프 | 몰리브덴 함유 박막의 제조방법 및 이로부터 제조된 몰리브덴함유 박막 |
| WO2021144334A1 (en) * | 2020-01-16 | 2021-07-22 | Merck Patent Gmbh | Ruthenium-containing films deposited on ruthenium-titanium nitride films and methods of forming the same |
| JP7433132B2 (ja) * | 2020-05-19 | 2024-02-19 | 東京エレクトロン株式会社 | 成膜方法及び成膜装置 |
| CN111777649A (zh) * | 2020-07-16 | 2020-10-16 | 苏州欣溪源新材料科技有限公司 | 二烷基二茂钼类配合物及其制备方法与应用 |
| KR20220011092A (ko) | 2020-07-20 | 2022-01-27 | 에이에스엠 아이피 홀딩 비.브이. | 전이 금속층을 포함하는 구조체를 형성하기 위한 방법 및 시스템 |
| TWI878570B (zh) * | 2020-07-20 | 2025-04-01 | 荷蘭商Asm Ip私人控股有限公司 | 用於沉積鉬層之方法及系統 |
| US11434254B2 (en) | 2021-01-12 | 2022-09-06 | Applied Materials, Inc. | Dinuclear molybdenum precursors for deposition of molybdenum-containing films |
| US11390638B1 (en) | 2021-01-12 | 2022-07-19 | Applied Materials, Inc. | Molybdenum(VI) precursors for deposition of molybdenum films |
| US11459347B2 (en) | 2021-01-12 | 2022-10-04 | Applied Materials, Inc. | Molybdenum(IV) and molybdenum(III) precursors for deposition of molybdenum films |
| US11760768B2 (en) | 2021-04-21 | 2023-09-19 | Applied Materials, Inc. | Molybdenum(0) precursors for deposition of molybdenum films |
| WO2025041856A1 (ja) * | 2023-08-24 | 2025-02-27 | ダイキン工業株式会社 | 金属錯体 |
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| JPH07107190B2 (ja) | 1984-03-30 | 1995-11-15 | キヤノン株式会社 | 光化学気相成長方法 |
| JPS63196243A (ja) | 1987-02-09 | 1988-08-15 | Hiroyuki Hamano | 肉の削り節及びその製造方法 |
| US5352488A (en) * | 1993-05-14 | 1994-10-04 | Syracuse University | Chemical vapor deposition process employing metal pentadienyl complexes |
| US6491978B1 (en) * | 2000-07-10 | 2002-12-10 | Applied Materials, Inc. | Deposition of CVD layers for copper metallization using novel metal organic chemical vapor deposition (MOCVD) precursors |
| TWI425110B (zh) * | 2007-07-24 | 2014-02-01 | 辛格瑪艾瑞契公司 | 以化學相沉積法製造含金屬薄膜之方法 |
| US20090203928A1 (en) * | 2008-01-24 | 2009-08-13 | Thompson David M | Organometallic compounds, processes for the preparation thereof and methods of use thereof |
| US20090199739A1 (en) * | 2008-01-24 | 2009-08-13 | Thompson David M | Organometallic compounds, processes for the preparation thereof and methods of use thereof |
| US20090205538A1 (en) | 2008-01-24 | 2009-08-20 | Thompson David M | Organometallic compounds, processes for the preparation thereof and methods of use thereof |
| DE102008036247A1 (de) | 2008-08-04 | 2010-02-11 | Merck Patent Gmbh | Elektronische Vorrichtungen enthaltend Metallkomplexe |
| SG178267A1 (en) * | 2009-08-07 | 2012-03-29 | Sigma Aldrich Co Llc | High molecular weight alkyl-allyl cobalttricarbonyl complexes and use thereof for preparing dielectric thin films |
| EP2609102B1 (en) | 2010-08-27 | 2014-12-31 | Sigma-Aldrich Co. LLC | Molybdenum (iv) amide precursors and use thereof in atomic layer deposition |
| US9175023B2 (en) | 2012-01-26 | 2015-11-03 | Sigma-Aldrich Co. Llc | Molybdenum allyl complexes and use thereof in thin film deposition |
| US8530348B1 (en) * | 2012-05-29 | 2013-09-10 | Intermolecular, Inc. | Integration of non-noble DRAM electrode |
| US9194040B2 (en) * | 2012-07-25 | 2015-11-24 | Applied Materials, Inc. | Methods for producing nickel-containing films |
| US10155783B2 (en) | 2013-05-28 | 2018-12-18 | Merck Patent Gmbh | Manganese complexes and use thereof for preparing thin films |
| GB201318595D0 (en) | 2013-10-21 | 2013-12-04 | Zephyros Inc | Improvements in or relating to laminates |
| JP6596737B2 (ja) | 2013-10-28 | 2019-10-30 | メルク パテント ゲゼルシャフト ミット ベシュレンクテル ハフツング | アミドイミン配位子を含む金属複合体 |
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| TWI660958B (zh) | 2019-06-01 |
| CN106460170B (zh) | 2019-12-06 |
| SG11201607587YA (en) | 2016-10-28 |
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| TW201542570A (zh) | 2015-11-16 |
| US10745430B2 (en) | 2020-08-18 |
| KR20160122273A (ko) | 2016-10-21 |
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