JP7196291B2 - タングステン膜又はモリブデン膜を堆積させるための方法 - Google Patents
タングステン膜又はモリブデン膜を堆積させるための方法 Download PDFInfo
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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
- C23C16/44—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
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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
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- H01L21/28556—Deposition of conductive or insulating materials for electrodes conducting electric current from a gas or vapour, e.g. condensation of conductive layers on semiconductor bodies comprising elements of Group IV of the Periodic System by chemical means, e.g. CVD, LPCVD, PECVD, laser CVD
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- 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
- H01L21/283—Deposition of conductive or insulating materials for electrodes conducting electric current
- H01L21/285—Deposition of conductive or insulating materials for electrodes conducting electric current from a gas or vapour, e.g. condensation
- H01L21/28506—Deposition of conductive or insulating materials for electrodes conducting electric current from a gas or vapour, e.g. condensation of conductive layers
- H01L21/28512—Deposition of conductive or insulating materials for electrodes conducting electric current from a gas or vapour, e.g. condensation of conductive layers on semiconductor bodies comprising elements of Group IV of the Periodic System
- H01L21/28568—Deposition of conductive or insulating materials for electrodes conducting electric current from a gas or vapour, e.g. condensation of conductive layers on semiconductor bodies comprising elements of Group IV of the Periodic System the conductive layers comprising transition metals
Description
Mo2Cを堆積させるが、良好なステップカバレージを有する低温及び他の条件で、パルス化された酸素を伴う継続的なCVDを使用。図2及び表1から4を参照のこと。
(EtBz)2Mo+H2(時間制限厚さ<50Å)/(EtBz)2Mo+O2:H2<50%
シリーズ:
(EtBz)2Mo+不活性/不活性パージ/(O2/H2)/不活性パージ
酸素(O2)の投与をMoの表面酸化に限定する。
水素(H2)の投与は、表面から実質的にすべての酸素を除去するのに充分である。
シリーズ:
Moイミド-アミド/不活性パージ/(H2O+H2)/任意選択的なH2/不活性パージ
表1から4は、実施例1として概して記載されているパルス化されたCVD法を使用して実施される本発明の方法のさまざまな処理条件及びパラメータの評価のデータを含有する。表中、堆積された膜の厚さ(例えばXRF Mo)又は堆積された膜の炭素含有量(XRF C)をx線蛍光(XRF)によって測定した。
Claims (9)
- 基板上に金属膜を形成するための堆積方法であって、
有機金属前駆体から生成された気体前駆体を堆積チャンバ中に流すこと、
300℃未満の温度である基板を気体前駆体に曝露させて、基板上に金属を堆積させ、基板上に堆積された金属層を形成すること、
気体前駆体とともに酸化剤を堆積チャンバ中に流すこと、及び
堆積された金属層を酸化剤に曝露させ、金属膜を形成すること
を含み、
有機金属前駆体が金属及び一又は複数の炭素含有リガンドを含み、金属がモリブデン又はタングステンである、方法。 - 堆積された金属層が、汚染物質として有機金属前駆体に由来する炭素を含み、堆積された金属層を酸化剤に曝露させる工程により、酸化剤が、炭素汚染物質と反応し、堆積された金属層から炭素汚染物質を除去することを可能にする、請求項1に記載の方法。
- 金属膜が、同じ方法によるが、堆積チャンバ中へ酸化剤を流さずに調製された同等の金属膜と比較して、減少した量の炭素を含有する、請求項1に記載の方法。
- 有機金属前駆体が、カルボニル含有前駆体、シクロペンタジエニル含有前駆体、アリール前駆体、アルキル置換アリール前駆体、アミド-イミド含有前駆体、及びアミジネート又はグアニジネート(guanidinate)前駆体から選択される、請求項1に記載の方法。
- 有機金属前駆体が、ビス(エチルベンゼン)モリブデン及びビス(エチルベンゼン)タングステンから選択される、請求項1に記載の方法。
- 基板上に金属膜を形成するための堆積方法であって、
方法が、パルス化された化学蒸着法であり、該パルス化された化学蒸着法が、
有機金属前駆体から生成された気体前駆体及び還元ガス共反応物を堆積チャンバ中に継続的に流すこと、
300℃未満の温度である基板を気体前駆体及び還元ガス共反応物に曝露させて、基板上に堆積された金属層を形成すること、
パルス化された流れにより酸化剤を堆積チャンバ中に流すこと、ここで酸化剤が、継続的に流れる気体前駆体とともに堆積チャンバ中に存在し、及び
堆積された金属層を酸化剤に曝露させて、金属膜を形成すること
を含み、
有機金属前駆体が金属及び一又は複数の炭素含有リガンドを含み、金属がモリブデン又はタングステンである、方法。 - 50オングストロームを超えない厚さを有する堆積された金属層を生成する、請求項6に記載の方法。
- 堆積された金属を酸化剤に曝露させた後に、水素ガスを堆積チャンバ中に流すことを更に含む、請求項6に記載の方法。
- 基板上に金属膜を形成するための堆積方法であって、
方法が、原子層堆積法であり、該原子層堆積法が、
有機金属前駆体から生成された気体前駆体を堆積チャンバ中に流すこと、
300℃未満の温度である基板を任意選択的に不活性ガスの存在下で気体前駆体に曝露させて、基板上に堆積された金属層を形成すること、及び
気体前駆体とともに酸化剤を堆積チャンバ中に流すこと、
堆積された金属層を酸化剤に曝露させて、金属膜を形成すること
を含み、
有機金属前駆体が金属及び一又は複数の炭素含有リガンドを含み、金属がモリブデン又はタングステンである、方法。
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US201862743582P | 2018-10-10 | 2018-10-10 | |
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PCT/US2019/052697 WO2020076502A1 (en) | 2018-10-10 | 2019-09-24 | Methods for depositing tungsten or molybdenum films |
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US11459347B2 (en) | 2021-01-12 | 2022-10-04 | Applied Materials, Inc. | Molybdenum(IV) and molybdenum(III) precursors for deposition of molybdenum films |
US11584768B2 (en) | 2021-01-12 | 2023-02-21 | Applied Materials, Inc. | Arene molybdenum (0) precursors for deposition of molybdenum films |
US11390638B1 (en) | 2021-01-12 | 2022-07-19 | Applied Materials, Inc. | Molybdenum(VI) precursors for deposition of molybdenum films |
US11530477B2 (en) | 2021-01-12 | 2022-12-20 | Applied Materials, Inc. | Cycloheptatriene molybdenum (0) precursors for deposition of molybdenum films |
US11434254B2 (en) | 2021-01-12 | 2022-09-06 | Applied Materials, Inc. | Dinuclear molybdenum precursors for deposition of molybdenum-containing films |
KR102563298B1 (ko) * | 2021-01-18 | 2023-08-03 | 주식회사 유진테크 | 박막의 불순물 제거방법 및 기판 처리 장치 |
US11760768B2 (en) | 2021-04-21 | 2023-09-19 | Applied Materials, Inc. | Molybdenum(0) precursors for deposition of molybdenum films |
US20220372053A1 (en) * | 2021-05-21 | 2022-11-24 | L'Air Liquide, Société Anonyme pour l'Etude et l'Exploitation des Procédés Georges Claude | Stable bis(alkyl-arene) transition metal complexes and methods of film deposition using the same |
WO2023073924A1 (ja) * | 2021-10-29 | 2023-05-04 | 株式会社Kokusai Electric | 半導体装置の製造方法、基板処理方法、基板処理装置及び記録媒体 |
CN114231940A (zh) * | 2021-12-08 | 2022-03-25 | 安徽光智科技有限公司 | 以羰基钼为前驱体制备钼溅射靶材的方法 |
KR102653042B1 (ko) * | 2021-12-24 | 2024-04-01 | 주식회사 유피케미칼 | 몰리브데늄 전구체 화합물, 이의 제조방법, 및 이를 이용한 몰리브데늄-함유 막의 증착 방법 |
US20230227975A1 (en) * | 2021-12-30 | 2023-07-20 | Applied Materials, Inc. | Method of depositing metal films |
WO2023171489A1 (ja) * | 2022-03-07 | 2023-09-14 | 株式会社Adeka | 原子層堆積法用薄膜形成用原料、薄膜及び薄膜の製造方法 |
WO2024030729A1 (en) | 2022-08-05 | 2024-02-08 | Versum Materials Us, Llc | Liquid molybdenum bis(arene) compositions for deposition of molybdenum-containing films |
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- 2019-09-24 EP EP19870425.6A patent/EP3864187A4/en active Pending
- 2019-09-24 KR KR1020217010271A patent/KR20210042418A/ko not_active Application Discontinuation
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CN112840063A (zh) | 2021-05-25 |
EP3864187A1 (en) | 2021-08-18 |
US11761081B2 (en) | 2023-09-19 |
SG11202102915TA (en) | 2021-04-29 |
EP3864187A4 (en) | 2022-07-27 |
WO2020076502A1 (en) | 2020-04-16 |
KR20210042418A (ko) | 2021-04-19 |
TWI716145B (zh) | 2021-01-11 |
US20200115798A1 (en) | 2020-04-16 |
US20240035157A1 (en) | 2024-02-01 |
JP2022504527A (ja) | 2022-01-13 |
TW202022155A (zh) | 2020-06-16 |
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