JP2020136301A - 基板処理装置、半導体装置の製造方法、およびプログラム - Google Patents
基板処理装置、半導体装置の製造方法、およびプログラム Download PDFInfo
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- JP2020136301A JP2020136301A JP2019023380A JP2019023380A JP2020136301A JP 2020136301 A JP2020136301 A JP 2020136301A JP 2019023380 A JP2019023380 A JP 2019023380A JP 2019023380 A JP2019023380 A JP 2019023380A JP 2020136301 A JP2020136301 A JP 2020136301A
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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
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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
- C23C16/455—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 characterised by the method used for introducing gases into reaction chamber or for modifying gas flows in reaction chamber
- C23C16/45523—Pulsed gas flow or change of composition over time
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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
- 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
- C23C16/22—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 deposition of inorganic material, other than metallic material
- C23C16/30—Deposition of compounds, mixtures or solid solutions, e.g. borides, carbides, nitrides
- C23C16/34—Nitrides
- C23C16/345—Silicon nitride
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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
- 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
- C23C16/4412—Details relating to the exhausts, e.g. pumps, filters, scrubbers, particle traps
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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
- 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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- C23C16/45502—Flow conditions in reaction chamber
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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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- C23C16/45536—Use of plasma, radiation or electromagnetic fields
- C23C16/45542—Plasma being used non-continuously during the ALD reactions
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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
- 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
- C23C16/455—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 characterised by the method used for introducing gases into reaction chamber or for modifying gas flows in reaction chamber
- C23C16/45523—Pulsed gas flow or change of composition over time
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- C23C16/45544—Atomic layer deposition [ALD] characterized by the apparatus
- C23C16/45546—Atomic layer deposition [ALD] characterized by the apparatus specially adapted for a substrate stack in the ALD reactor
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- 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
- 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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- 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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- 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
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- H01J37/32431—Constructional details of the reactor
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- H01L21/0226—Forming insulating materials on a substrate characterised by the process for the formation of the insulating layer formation by a deposition process
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Abstract
Description
基板が収容される処理室と、
前記処理室内へ所定元素を含む第1処理ガスを供給する第1ガス供給系と、
前記処理室内へ前記第1処理ガスとは化学構造が異なる第2処理ガスを供給する第2ガス供給系と、
前記処理室内を排気する排気系と、
前記処理室内の基板に対して前記第1処理ガスを供給する第1処理と、前記処理室内の前記基板に対して前記第2処理ガスを供給する第2処理と、を非同時に所定回数行うことで、前記基板上に前記所定元素を含む膜を形成するように、前記第1ガス供給系、前記第2ガス供給系、および前記排気系を制御するよう構成される制御部と、を有し、
前記第1ガス供給系は、
前記第1処理を行うごとに前記第1処理ガスを一時的に貯留する第1貯留部と、
前記第1処理を行うごとに前記第1処理ガスを一時的に貯留する第2貯留部と、
前記第1貯留部内に貯留された前記第1処理ガスを、前記基板の外周から、前記基板の中心に向けて供給するように構成された第1ガス供給口と、
前記第2貯留部内に貯留された前記第1処理ガスを、前記基板の外周から、前記基板の外周から前記基板の中心に向かう方向よりも前記基板の外周側の方向に向けて供給するように構成された第2ガス供給口と、
を備える技術が提供される。
以下、本開示の一態様について、主に、図1〜図4を用いて説明する。
上述の基板処理装置を用い、半導体装置の製造工程の一工程として、基板としてのウエハ200上に膜を形成する基板処理シーケンス例、すなわち、成膜シーケンス例について、図4を用いて説明する。以下の説明において、基板処理装置を構成する各部の動作はコントローラ280により制御される。
処理室201内のウエハ200に対して第1処理ガスとしてDCSガスを供給する第1工程としてのステップAと、処理室201内のウエハ200に対して第1処理ガスとは化学構造が異なる第2処理ガスとしてNH3ガスを供給する第2工程としてのステップBと、を非同時に所定回数(n回、nは1以上の整数)行うことで、ウエハ200上に、膜として、SiおよびNを含む膜、すなわち、シリコン窒化膜(SiN膜)を形成する。
複数のウエハ200をボート217に装填(ウエハチャージ)し、反応管203の下端開口を開放する。その後、ウエハ200を支持したボート217を、ボートエレベータ115によって持ち上げて処理室201内へ搬入(ボートロード)する。図1に示すように、反応管203の下端は、Oリング220を介してシールキャップ219によりシールされる。
処理室201内が所望の圧力となるように、真空ポンプ246によって真空排気される(圧力調整)。また、処理室201内が所望の温度となるように、ヒータ207によって加熱される(温度調整)。また、回転機構267によるウエハ200の回転を開始する(回転)。これらの各種動作は、少なくともウエハ200に対する処理が完了するまでの間は、継続して行われる。
その後、次のステップA,Bを順次実施する。ステップAでは、一例として、上述のサブステップA1,A2を同時に行う。
バルブ313,323,612,622を閉じた状態で、バルブ314,324を開き、MFC312,322で流量調整されたDCSガスを、バッファタンク315,325内にそれぞれ充填する。バッファタンク315,325内には、バッファタンク315,325内の圧力が例えば20000Pa以上の圧力となるように、DCSガスを充填する。バッファタンク315,325内に充填するDCSガスの量は、例えば100〜250ccとする。バッファタンク315,325内のそれぞれに、所定圧、所定量のDCSガスが充填されたら、バルブ314,324を閉じる。
ステップAが終了した後、バルブ632を閉じた状態でバルブ333を開き、ガス供給管330内にNH3ガスを流す。NH3ガスは、MFC332により流量調整され、ガス供給口431からバッファ室433内へ供給される。このとき、棒状電極471,472間に高周波電力を印加することで、バッファ室433内へ供給されたNH3ガスはプラズマ励起(プラズマ状態に励起)され、ガス供給口435から処理室201内へ供給され、排気管231から排気される。このとき、ウエハ200に対してプラズマで活性化されたNH3ガス(NH3 *)が供給される(NH3ガス供給)。このとき、少なくともバルブ513,523を開き、処理室201内へN2ガスを流し、ノズル410,420内へのNH3ガスの侵入を防止する。
ステップA,Bを非同時に、すなわち、同期させることなく行うサイクルを1回以上(n回)行うことにより、ウエハ200上に、所望膜厚、所望組成のSiN膜を形成することができる。上述のサイクルは、複数回繰り返すのが好ましい。すなわち、1サイクルあたりに形成されるSiN層の厚さを所望の膜厚よりも小さくし、SiN層を積層することで形成されるSiN膜の膜厚が所望の膜厚になるまで、上述のサイクルを複数回繰り返すのが好ましい。
ウエハ200上への成膜が終了した後、N2ガスを処理室201内へ供給し排気管231から排気する。N2ガスはパージガスとして作用し、これにより、処理室201内が不活性ガスでパージされ、処理室201内に残留するガスや反応副生成物が処理室201内から除去される(パージ)。その後、処理室201内の雰囲気が不活性ガスに置換され(不活性ガス置換)、処理室201内の圧力が常圧に復帰される(大気圧復帰)。
ボートエレベータ115によりシールキャップ219を下降させ、反応管203の下端を開口させる。そして、処理済のウエハ200を、ボート217に支持させた状態で反応管203の外部に搬出(ボートアンロード)させる。処理済のウエハ200は、反応管203の外部に搬出された後、ボート217より取出される(ウエハディスチャージ)。
本態様によれば、以下に示す1つ又は複数の効果を奏する。
以上、本開示の態様を具体的に説明した。但し、本開示は上述の態様に限定されるものではなく、その要旨を逸脱しない範囲で種々変更可能である。
(DCS→NH3→O2)×n ⇒ SiON
(DCS→C3H6→NH3)×n ⇒ SiCN
(DCS→C3H6→O2)×n ⇒ SiOC
(DCS→C3H6→NH3→O2)×n ⇒ SiOCN
(DCS→TEA)×n ⇒ SiCN
(DCS→TEA→O2)×n ⇒ SiOCN
以下、本開示の好ましい態様について付記する。
本開示の一態様によれば、
基板が収容される処理室と、
前記処理室内へ所定元素を含む第1処理ガスを供給する第1ガス供給系と、
前記処理室内へ前記第1処理ガスとは化学構造が異なる第2処理ガスを供給する第2ガス供給系と、
前記処理室内を排気する排気系と、
前記処理室内の基板に対して前記第1処理ガスを供給する第1処理と、前記処理室内の前記基板に対して前記第2処理ガスを供給する第2処理と、を非同時に所定回数行うことで、前記基板上に前記所定元素を含む膜を形成するように、前記第1ガス供給系、前記第2ガス供給系、および前記排気系を制御するよう構成される制御部と、を備え、
前記第1ガス供給系は、
前記第1処理を行うごとに前記第1処理ガスを一時的に貯留する第1貯留部と、
前記第1処理を行うごとに前記第1処理ガスを一時的に貯留する第2貯留部と、
前記第1貯留部内に貯留された前記第1処理ガスを、前記基板の外周から、前記基板の中心に向けて供給するように構成された第1ガス供給口と、
前記第2貯留部内に貯留された前記第1処理ガスを、前記基板の外周から、前記基板の外周から前記基板の中心に向かう方向よりも前記基板の外周側に向けて供給するように構成された第2ガス供給口と、
を備える基板処理装置が提供される。
付記1に記載の装置であって、好ましくは、
前記第1処理では、前記処理室内を排気した後、前記排気系を閉塞した状態で、前記第1貯留部内に貯留された前記第1処理ガス、および、前記第2貯留部内に貯留された前記第1処理ガスのそれぞれを、前記処理室内へ供給して封じ込める。
付記1または2に記載の装置であって、好ましくは、
前記第1処理では、前記第1貯留部内と前記処理室内との圧力差、および、前記第2貯留部内と前記処理室内との圧力差を利用して、前記第1ガス供給口および前記第2ガス供給口を介して前記処理室内へ供給される前記第1処理ガスの流速をそれぞれ増加させる。
付記1から3のいずれかに記載の装置であって、
前記第1ガス供給口および前記第2ガス供給口を介して前記処理室内へ供給される前記第1処理ガスの流速が、それぞれ、前記第1処理ガスが前記基板上で滞留することなく前記基板上を通過するような大きさとなる。
付記1から4のいずれかに記載の装置であって、好ましくは、
前記第2ガス供給口から前記処理室内へ供給される前記第1処理ガスの流速が、前記第1ガス供給口から前記処理室内へ供給される前記第1処理ガスの流速の0.8倍以上1.2倍以内の大きさである。より好ましくは、前記第2ガス供給口から前記処理室内へ供給される前記第1処理ガスの流速と、前記第1ガス供給口から前記処理室内へ供給される前記第1処理ガスの流速と、が実質的に同等である。
付記1から5のいずれかに記載の装置であって、好ましくは、
前記第2ガス供給口は、前記第2貯留部内に貯留された前記第1処理ガスを、前記第2ガス供給口から前記基板の中心へ向かう方向と、前記第2ガス供給口から前記基板の外周へ向かう方向と、の間の所定の方向へ向けて供給する。
付記1から6のいずれかに記載の装置であって、好ましくは、
前記第1ガス供給口と前記第2ガス供給口とは、前記基板の外周方向において互いに隣り合う位置に設けられている。
付記1から7のいずれかに記載の装置であって、好ましくは、
前記第2ガス供給口は、前記第2貯留部内に貯留された前記第1処理ガスを、前記第2ガス供給口から前記基板の中心に向かう方向に対して前記基板の外周側に向かって24°以上30°以下の範囲内の所定の角度の方向へ向けて供給するように構成されている。すなわち、前記第2ガス供給口から前記基板の中心に向かう方向と、前記第2ガス供給口から供給されるガス流の方向と、のなす角θの大きさが、24°以上30°以下の範囲内の所定の大きさとなっている。
付記1から8のいずれかに記載の装置であって、好ましくは、
前記第2ガス供給口は、前記第2貯留部内に貯留された前記第1処理ガスを、記第1ガス供給口から前記第1処理ガスが供給される方向と平行な方向よりも、前記基板の外周側の方向に向けて供給するように構成されている。
付記1から9のいずれかに記載の装置であって、好ましくは、
前記処理室内には複数の前記基板が所定の間隔で積載して収容され、
前記第1ガス供給口は、前記基板が積載される方向に沿って設けられた第1ノズルの側部に複数設けられており、
前記第2ガス供給口は、前記基板が積載される方向に沿って設けられた第2ノズルの側部に複数設けられている。
付記10に記載の装置であって、好ましくは、
前記第1ノズルには、複数の前記基板に対応する位置に、前記第1ガス供給口がそれぞれ設けられている。
付記10または11に記載の装置であって、好ましくは、
前記第1ガス供給系は、
前記第1貯留部と前記第1ノズルとの間に設けられた第1バルブと、前記第2貯留部と前記第2ノズルとの間に設けられた第2バルブと、を備え、
前記制御部は、
前記第1処理において、前記第1バルブおよび前記第2バルブを開くことにより、前記第1貯留部内および前記第2貯留部内のそれぞれに貯留されていた前記第1処理ガスを前記処理室内へ供給するように、前記第1ガス供給系を制御する。
付記1から12のいずれかに記載の装置であって、好ましくは、
前記制御部は、
前記第1貯留部内に貯留される前記第1処理ガスの量と、前記第2貯留部内に貯留される前記第1処理ガスの量と、をそれぞれ個別に調整するように、前記第1ガス供給系を制御する。
付記1から13のいずれかに記載の装置であって、好ましくは、
前記制御部は、
前記第1貯留部内に貯留される前記第1処理ガスの量と、前記第2貯留部内に貯留される前記第1処理ガスの量と、の比率を変化させるように前記第1ガス供給系を制御することにより、前記基板上に形成される膜の面内膜厚分布を調整する。
付記1から14のいずれかに記載の装置であって、好ましくは、
前記制御部は、
前記第1貯留部内に貯留される前記第1処理ガスの量と、前記第2貯留部内に貯留される前記第1処理ガスの量と、の比率が所定の比率となるように、前記第1ガス供給系を制御する。
付記1から15のいずれかに記載の装置であって、好ましくは、
前記処理室内には複数の前記基板が所定の間隔で積載して収容され、
前記第1ガス供給口は、前記基板が積載される方向に沿って設けられた第1ノズルに設けられ、
前記第2ガス供給口は、前記基板が積載される方向に沿って設けられた第2ノズルに設けられ、
前記制御部は、
前記第1貯留部内に貯留される前記第1処理ガスの量と、前記第2貯留部内に貯留される前記第1処理ガスの量と、の比率が所定の比率となるように、前記第1ガス供給系を制御するよう構成されている。
本開示の他の態様によれば、
処理室内に収容された基板に対して所定元素を含む第1処理ガスを供給する第1工程と、前記処理室内の前記基板に対して前記第1処理ガスとは化学構造が異なる第2処理ガスを供給する第2工程と、を非同時に所定回数行うことで、前記基板上に前記所定元素を含む膜を形成する工程を有し、
前記第1工程は、
第1貯留部内に一時的に貯留された前記第1処理ガスを、第1ガス供給口を介して前記基板に向けて供給する第1供給工程と、
第2貯留部内に一時的に貯留された前記第1処理ガスを、第2ガス供給口を介して前記基板に向けて供給する第2供給工程と、を含み、
前記第1供給工程では、前記基板の外周から、前記基板の中心に向けて前記第1処理ガスを供給し、
前記第2供給工程では、前記基板の外周から、前記基板の外周から前記基板の中心に向かう方向よりも前記基板の外周側の方向に向けて前記第1処理ガスを供給する、
半導体装置の製造方法または、基板処理方法が提供される。
本開示のさらに他の態様によれば、
基板処理装置の処理室内において、付記17における各工程を行う手順を、
コンピュータにより前記基板処理装置に実行させるプログラム、または、前記プログラムを記録したコンピュータにより読み取り可能な記録媒体が提供される。
201 処理室
280 コントローラ(制御部)
301 原料ガス供給系
302 窒化ガス供給系
Claims (5)
- 基板が収容される処理室と、
前記処理室内へ所定元素を含む第1処理ガスを供給する第1ガス供給系と、
前記処理室内へ前記第1処理ガスとは化学構造が異なる第2処理ガスを供給する第2ガス供給系と、
前記処理室内を排気する排気系と、
前記処理室内の基板に対して前記第1処理ガスを供給する第1処理と、前記処理室内の前記基板に対して前記第2処理ガスを供給する第2処理と、を非同時に所定回数行うことで、前記基板上に前記所定元素を含む膜を形成するように、前記第1ガス供給系、前記第2ガス供給系、および前記排気系を制御するよう構成される制御部と、を備え、
前記第1ガス供給系は、
前記第1処理を行うごとに前記第1処理ガスを一時的に貯留する第1貯留部と、
前記第1処理を行うごとに前記第1処理ガスを一時的に貯留する第2貯留部と、
前記第1貯留部内に貯留された前記第1処理ガスを、前記基板の外周から、前記基板の中心に向けて供給するように構成された第1ガス供給口と、
前記第2貯留部内に貯留された前記第1処理ガスを、前記基板の外周から、前記基板の外周から前記基板の中心に向かう方向よりも前記基板の外周側に向けて供給するように構成された第2ガス供給口と、
を備える基板処理装置。 - 前記第2ガス供給口は、前記第2貯留部内に貯留された前記第1処理ガスを、前記第2ガス供給口から前記基板の中心へ向かう方向と、前記第2ガス供給口から前記基板の外周へ向かう方向と、の間の所定の方向へ向けて供給するよう構成される請求項1に記載の基板処理装置。
- 前記制御部は、
前記第1貯留部内に貯留される前記第1処理ガスの量と、前記第2貯留部内に貯留される前記第1処理ガスの量と、をそれぞれ個別に調整するように、前記第1ガス供給系を制御するよう構成される請求項1または2に記載の基板処理装置。 - 処理室内に収容された基板に対して所定元素を含む第1処理ガスを供給する第1工程と、前記処理室内の前記基板に対して前記第1処理ガスとは化学構造が異なる第2処理ガスを供給する第2工程と、を非同時に所定回数行うことで、前記基板上に前記所定元素を含む膜を形成する工程を有し、
前記第1工程は、
第1貯留部内に一時的に貯留された前記第1処理ガスを、第1ガス供給口を介して前記基板に向けて供給する第1供給工程と、
第2貯留部内に一時的に貯留された前記第1処理ガスを、第2ガス供給口を介して前記基板に向けて供給する第2供給工程と、を含み、
前記第1供給工程では、前記基板の外周から、前記基板の中心に向けて前記第1処理ガスを供給し、
前記第2供給工程では、前記基板の外周から、前記基板の外周から前記基板の中心に向かう方向よりも前記基板の外周側の方向に向けて前記第1処理ガスを供給する、
半導体装置の製造方法。 - 基板処理装置の処理室内に収容された基板に対して所定元素を含む第1処理ガスを供給する第1手順と、前記処理室内の前記基板に対して前記第1処理ガスとは化学構造が異なる第2処理ガスを供給する第2手順と、を非同時に所定回数行うことで、前記基板上に前記所定元素を含む膜を形成する手順を有し、
前記第1手順は、
第1貯留部内に一時的に貯留された前記第1処理ガスを、第1ガス供給口を介して前記基板に向けて供給する第1供給手順と、
第2貯留部内に一時的に貯留された前記第1処理ガスを、第2ガス供給口を介して前記基板に向けて供給する第2供給手順と、を含み、
前記第1供給手順では、前記基板の外周から、前記基板の中心に向けて前記第1処理ガスを供給し、
前記第2供給手順では、前記基板の外周から、前記基板の外周から前記基板の中心に向かう方向よりも前記基板の外周側の方向に向かって前記第1処理ガスを供給する手順を、
コンピュータにより前記基板処理装置に実行させるプログラム。
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