JP6413293B2 - 成膜方法及び記憶媒体 - Google Patents
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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
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- C23C16/45544—Atomic layer deposition [ALD] characterized by the apparatus
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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
- C23C16/52—Controlling or regulating the coating process
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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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- H01L21/02123—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 silicon
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Description
特許文献1には、アルミナ膜を成膜するにあたって、バッファータンク内の圧力を一定に保つ技術について記載されているが、既述の課題については記載されていない。
真空雰囲気とされた反応容器内にて、基板に原料ガスを吸着させ、次いで反応ガスと基板に吸着された原料ガスとを反応させて反応生成物を生成するサイクルを複数回繰り返して基板上に薄膜を成膜する方法において、
前記反応容器内の圧力をP1に規制するために真空排気路に設けられた圧力規制用のバルブと、原料ガス供給部と、を用い、
前記原料ガス供給部に向かう原料ガスの供給路の途中に設けたタンク内に原料ガスを昇圧した状態で貯留する工程と、
次いで前記タンクの下流側に設けられた流量調整用のバルブによりガス流量を調整しながら、前記タンクから前記原料ガス供給部を介して前記原料ガスを反応容器内に時間Δt供給すると共に、前記圧力規制用のバルブの作用により、原料ガスの供給開始時点t1からΔt×(1/3)経過する前の時点と、原料ガスの供給開始時点t1からΔt×(2/3)経過した後の時点との間に亘って、前記反応容器内の圧力をP1に規制する工程と、を含むことを特徴とする。
具体的には、バイパスライン81やリリーフバルブ83を設けなかった場合に、原料ガスの供給時間を増やした場合に薄膜の膜厚寸法がどのように変化するか確認を行った。即ち、表面が平滑なベアウエハと、表面にパターンが形成された製品ウエハに対して共通の処理条件(原料ガスの吸着量が飽和しない条件)にて成膜処理を行った。その結果、図9に示すように、ベアウエハでは製品ウエハよりも膜厚寸法が厚くなっていた。
11 ウエハボート
12 反応管
71 流量調整部
73 バッファータンク
82 開閉バルブ
83 リリーフバルブ
Claims (6)
- 真空雰囲気とされた反応容器内にて、基板に原料ガスを吸着させ、次いで反応ガスと基板に吸着された原料ガスとを反応させて反応生成物を生成するサイクルを複数回繰り返して基板上に薄膜を成膜する方法において、
前記反応容器内の圧力をP1に規制するために真空排気路に設けられた圧力規制用のバルブと、原料ガス供給部と、を用い、
前記原料ガス供給部に向かう原料ガスの供給路の途中に設けたタンク内に原料ガスを昇圧した状態で貯留する工程と、
次いで前記タンクの下流側に設けられた流量調整用のバルブによりガス流量を調整しながら、前記タンクから前記原料ガス供給部を介して前記原料ガスを反応容器内に時間Δt供給すると共に、前記圧力規制用のバルブの作用により、原料ガスの供給開始時点t1からΔt×(1/3)経過する前の時点と、原料ガスの供給開始時点t1からΔt×(2/3)経過した後の時点との間に亘って、前記反応容器内の圧力をP1に規制する工程と、を含むことを特徴とする成膜方法。 - 前記時間Δtは、2秒〜10秒の間で設定される時間であることを特徴とする請求項1に記載の成膜方法。
- 前記原料ガスを供給する時の前記反応容器内の圧力は、133Pa〜666Paであることを特徴とする請求項1または2に記載の成膜方法。
- 前記反応容器内にて基板の表面を通過するときの原料ガスの流速は、0.5m/s以上であることを特徴とする請求項1ないし3のいずれか一つに記載の成膜方法。
- 前記真空排気路には、圧力調整用のバルブが設けられ、
前記圧力規制用のバルブは、前記圧力調整用のバルブを迂回するバイパス路に設けられていることを特徴とする請求項1ないし4のいずれか一つに記載の成膜方法。 - コンピュータ上で動作するコンピュータプログラムを格納した記憶媒体であって、
前記コンピュータプログラムは、請求項1ないし5のいずれか一つに記載の成膜方法を実施するようにステップが組まれていることを特徴とする記憶媒体。
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JP2014066669A JP6413293B2 (ja) | 2014-03-27 | 2014-03-27 | 成膜方法及び記憶媒体 |
KR1020150037372A KR101832555B1 (ko) | 2014-03-27 | 2015-03-18 | 성막 장치, 성막 방법 및 기억 매체 |
US14/664,105 US9624579B2 (en) | 2014-03-27 | 2015-03-20 | Film forming apparatus, film forming method, and non-transitory computer-readable storage medium |
TW104109125A TWI591201B (zh) | 2014-03-27 | 2015-03-23 | 成膜裝置、成膜方法及記憶媒體 |
CN201510142574.7A CN104947081B (zh) | 2014-03-27 | 2015-03-27 | 成膜装置和成膜方法 |
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JP5824372B2 (ja) * | 2012-01-25 | 2015-11-25 | 東京エレクトロン株式会社 | 処理装置及びプロセス状態の確認方法 |
JP6678489B2 (ja) * | 2016-03-28 | 2020-04-08 | 東京エレクトロン株式会社 | 基板処理装置 |
KR20190011481A (ko) * | 2017-07-25 | 2019-02-07 | 세메스 주식회사 | 박막 형성 방법 및 박막 형성 장치 |
JP6653308B2 (ja) * | 2017-11-15 | 2020-02-26 | 株式会社Kokusai Electric | 半導体装置の製造方法、基板処理装置、およびプログラム |
KR102349037B1 (ko) * | 2018-09-17 | 2022-01-10 | 주식회사 원익아이피에스 | 웨이퍼 공정용 리액터의 가스 제어 장치 |
TWI725717B (zh) * | 2019-03-28 | 2021-04-21 | 日商國際電氣股份有限公司 | 半導體裝置之製造方法、基板處理裝置及記錄媒體 |
JP7016833B2 (ja) * | 2019-05-17 | 2022-02-07 | 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、およびプログラム |
JP7330091B2 (ja) * | 2019-12-24 | 2023-08-21 | 東京エレクトロン株式会社 | 成膜方法 |
CN115087624B (zh) * | 2020-03-25 | 2024-01-02 | 株式会社藤仓 | 光纤母材的制造方法及加热炉 |
CN115443348A (zh) * | 2020-04-24 | 2022-12-06 | 朗姆研究公司 | 无转向气体投配 |
CN111569594A (zh) * | 2020-05-22 | 2020-08-25 | 北京北方华创微电子装备有限公司 | 尾气处理装置及半导体设备 |
CN114823428A (zh) * | 2022-05-30 | 2022-07-29 | 北京北方华创微电子装备有限公司 | 半导体热处理设备及其控制方法 |
CN117348653B (zh) * | 2023-12-05 | 2024-02-20 | 鸿舸半导体设备(上海)有限公司 | 一种铝源输送管路的控制方法、装置、设备及介质 |
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JP3305817B2 (ja) * | 1993-06-28 | 2002-07-24 | 株式会社日立国際電気 | 半導体製造装置及びウェーハ処理方法 |
JP3247581B2 (ja) | 1995-06-28 | 2002-01-15 | 株式会社東芝 | 半導体製造装置のガス供給装置およびその供給方法 |
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US9624579B2 (en) | 2017-04-18 |
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TW201600631A (zh) | 2016-01-01 |
US20150275366A1 (en) | 2015-10-01 |
CN104947081B (zh) | 2018-09-07 |
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KR20150112813A (ko) | 2015-10-07 |
TWI591201B (zh) | 2017-07-11 |
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