JP7516742B2 - 基板を処理する装置、処理ガスを濃縮する装置、及び基板を処理する方法 - Google Patents
基板を処理する装置、処理ガスを濃縮する装置、及び基板を処理する方法 Download PDFInfo
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- JP7516742B2 JP7516742B2 JP2019200886A JP2019200886A JP7516742B2 JP 7516742 B2 JP7516742 B2 JP 7516742B2 JP 2019200886 A JP2019200886 A JP 2019200886A JP 2019200886 A JP2019200886 A JP 2019200886A JP 7516742 B2 JP7516742 B2 JP 7516742B2
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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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Description
前記基板が収容されたチャンバと、
前記基板を処理するための処理ガスの原料が収容された原料タンクと、
前記原料タンクにキャリアガスを供給するように構成されたキャリアガス供給部と、
前記原料タンクに接続され、前記処理ガスの原料から得た処理ガスと前記キャリアガスとの混合ガスが流通し、前記混合ガスの供給、停止を行うように構成された混合ガス給断バルブを備えた混合ガス流路と、
前記混合ガス流路の下流に接続され、前記混合ガスに含まれる前記処理ガスが優先的に吸着されるように構成された金属有機構造体を含む多孔質部材が収容された濃縮タンクと、
前記多孔質部材に吸着された前記処理ガスを脱離させるように構成された脱離機構と、
前記多孔質部材から脱離された前記処理ガスを前記チャンバへ供給するために、前記濃縮タンクと前記チャンバとの間に設けられ、前記チャンバへの前記処理ガスの供給、停止を行うように構成された処理ガス給断バルブを備えた濃縮ガス流路と、
前記濃縮タンクにて前記混合ガスに含まれる前記処理ガスが吸着された後の残キャリアガスを排出するために、前記残キャリアガスの排出を実行、停止するように構成された排出路バルブを備えた排出路と、
制御部と、を有し、
前記制御部は、前記排出路バルブが開放され、前記濃縮タンクから前記残キャリアガスが排出される期間中は、前記処理ガス給断バルブを閉止し、前記処理ガス給断バルブが開放され、前記チャンバへ前記処理ガスが供給される期間中は、前記混合ガス給断バルブ及び前記排出路バルブを閉止するように、前記混合ガス給断バルブ、前記排出路バルブ及び前記処理ガス給断バルブを制御するように構成される。
(a)銅イオンと1,3,5-ベンゼントリカルボン酸との配位結合によって構成される金属錯体を含み、前記金属錯体の複数が集積して形成された細孔構造を有する金属有機構造体
(b)鉄イオンと1,3,5-ベンゼントリカルボン酸との配位結合によって構成される金属錯体を含み、前記金属錯体の複数が集積して形成された細孔構造を有する金属有機構造体
(c)クロムイオンとテレフタル酸との配位結合によって構成される金属錯体を含み、前記金属錯体の複数が集積して形成された細孔構造を有する金属有機構造体
(d)ランタンイオンと1,3,5-トリス(4-カルボキシフェニル)ベンゼンとの配位結合によって構成される金属錯体を含み、前記金属錯体の複数が集積して形成された細孔構造を有する金属有機構造体
なお以下の説明では、多孔質部材53とこれを構成する金属有機構造体とを区別せずに「多孔質部材53の細孔」、「多孔質部材53への吸着」などと記載する場合がある。
さらにまた、濃縮ガス流路6には原料ガス給断バルブ61の上流側に、キャリアガスを排出するための排出路63が接続されており、この排出路63はバルブ631を備えている。排出路63は図示しない排気機構に接続されている。
反応ガス供給部は、反応ガスをチャンバ10へ供給するように構成され、反応ガスの供給源641と、当該供給源641からチャンバ10へ反応ガスを供給する反応ガス供給路64と、を有するものである。反応ガスは、原料ガスと反応して、膜を形成するガスであり、例えばAlCl3との反応により窒化アルミニウム(AlN)を生成するアンモニア(NH3)ガスが用いられる。例えば反応ガス供給路64は、反応ガスの供給、停止を行うように構成された反応ガス給断バルブ642と、反応ガスの流量調節を実施する流量調節部643と、を備えている。
なお、原料ガスの脱離と濃縮ガスのチャンバ10への供給とは、同時に行ってもよい。この場合には、図4に示すように原料ガス給断バルブ61を開いた状態で多孔質部材53を加熱し、脱離させた原料ガスをそのままチャンバ10へと供給する。
(a)銅イオンと1,3,5-ベンゼントリカルボン酸との配位結合によって構成される金属錯体を含み、前記金属錯体の複数が集積して形成された細孔構造を有する金属有機構造体(実施例1)
(b)鉄イオンと1,3,5-ベンゼントリカルボン酸との配位結合によって構成される金属錯体を含み、前記金属錯体の複数が集積して形成された細孔構造を有する金属有機構造体(実施例2)
(c)クロムイオンとテレフタル酸との配位結合によって構成される金属錯体を含み、前記金属錯体の複数が集積して形成された細孔構造を有する金属有機構造体(実施例3)
(d)ランタンイオンと1,3,5-トリス(4-カルボキシフェニル)ベンゼンとの配位結合によって構成される金属錯体を含み、前記金属錯体の複数が集積して形成された細孔構造を有する金属有機構造体(実施例4)
2 原料タンク
22 気化機構
4 混合ガス流路
5 原料ガス濃縮装置
51 濃縮タンク
52 脱離機構
53 多孔質部材
6 濃縮ガス流路
W 半導体ウエハ
Claims (17)
- 半導体装置を製造するための基板を処理する装置であって、
前記基板が収容されたチャンバと、
前記基板を処理するための処理ガスの原料が収容された原料タンクと、
前記原料タンクにキャリアガスを供給するように構成されたキャリアガス供給部と、
前記原料タンクに接続され、前記処理ガスの原料から得た処理ガスと前記キャリアガスとの混合ガスが流通し、前記混合ガスの供給、停止を行うように構成された混合ガス給断バルブを備えた混合ガス流路と、
前記混合ガス流路の下流に接続され、前記混合ガスに含まれる前記処理ガスが優先的に吸着されるように構成された金属有機構造体を含む多孔質部材が収容された濃縮タンクと、
前記多孔質部材に吸着された前記処理ガスを脱離させるように構成された脱離機構と、
前記多孔質部材から脱離された前記処理ガスを前記チャンバへ供給するために、前記濃縮タンクと前記チャンバとの間に設けられ、前記チャンバへの前記処理ガスの供給、停止を行うように構成された処理ガス給断バルブを備えた濃縮ガス流路と、
前記濃縮タンクにて前記混合ガスに含まれる前記処理ガスが吸着された後の残キャリアガスを排出するために、前記残キャリアガスの排出を実行、停止するように構成された排出路バルブを備えた排出路と、
制御部と、を有し、
前記制御部は、前記排出路バルブが開放され、前記濃縮タンクから前記残キャリアガスが排出される期間中は、前記処理ガス給断バルブを閉止し、前記処理ガス給断バルブが開放され、前記チャンバへ前記処理ガスが供給される期間中は、前記混合ガス給断バルブ及び前記排出路バルブを閉止するように、前記混合ガス給断バルブ、前記排出路バルブ及び前記処理ガス給断バルブを制御するように構成される、装置。 - 前記排出路は、前記処理ガス給断バルブの上流側の前記濃縮ガス流路に接続されている、請求項1に記載の装置。
- 前記原料は液体または固体であり、
前記原料タンクは、前記処理ガスの原料を気化させて前記処理ガスを得るように構成された気化機構を備える、請求項1または2に記載の装置。 - 前記脱離機構は、前記濃縮タンク内の前記多孔質部材を加熱して前記処理ガスを脱離させるように構成された多孔質部材加熱機構を含む、請求項1ないし3のいずれか一つに記載の装置。
- 前記金属有機構造体は、下記(a)~(d)に記載の金属有機構造体群から選択されたものである、請求項1ないし4のいずれか一つに記載の装置。
(a)銅イオンと1,3,5-ベンゼントリカルボン酸との配位結合によって構成される金属錯体を含み、前記金属錯体の複数が集積して形成された細孔構造を有する金属有機構造体
(b)鉄イオンと1,3,5-ベンゼントリカルボン酸との配位結合によって構成される金属錯体を含み、前記金属錯体の複数が集積して形成された細孔構造を有する金属有機構造体
(c)クロムイオンとテレフタル酸との配位結合によって構成される金属錯体を含み、前記金属錯体の複数が集積して形成された細孔構造を有する金属有機構造体
(d)ランタンイオンと1,3,5-トリス(4-カルボキシフェニル)ベンゼンとの配位結合によって構成される金属錯体を含み、前記金属錯体の複数が集積して形成された細孔構造を有する金属有機構造体 - 前記濃縮ガス流路は、前記処理ガスの流量調節を実施するように構成された流量調節部を備える、請求項1ないし5のいずれか一つに記載の装置。
- 前記気化機構は、液体である前記原料に前記キャリアガスをバブリングして、前記原料を気化するように構成されたバブリング機構、または、液体または固体である前記原料を加熱して、前記原料を気化するように構成された原料加熱機構である、請求項3に記載の装置。
- 前記処理は基板に膜を形成する処理であり、前記原料は前記膜の原料であるハロゲン化金属である、請求項1ないし7のいずれか一つに記載の装置。
- 前記ハロゲン化金属は、塩化アルミニウム、五塩化タングステン及び四塩化チタンからなるハロゲン化金属群から選択されたものである、請求項8に記載の装置。
- 前記処理ガスと反応して前記膜を形成する反応ガスを供給するように構成されると共に、前記チャンバへの反応ガスの供給、停止を行うように構成された反応ガス給断バルブを備えた反応ガス供給部を有し、
前記制御部は、前記チャンバに対して前記処理ガスと反応ガスとが交互に供給されるように、前記処理ガス給断バルブ及び前記反応ガス給断バルブを制御するように構成される、請求項8または9に記載の装置。 - 半導体装置を製造するための基板を処理する方法であって、
前記基板を処理するための処理ガスの原料を収容した原料タンクにキャリアガスを供給して、処理ガスと前記キャリアガスとの混合ガスを得る工程と、
金属有機構造体を含む多孔質部材が収容された濃縮タンクに、混合ガス流路を介して前記混合ガスを供給し、前記多孔質部材に対して前記混合ガス中の前記処理ガスを優先的に吸着させる工程と、
前記濃縮タンクにて前記混合ガスに含まれる前記処理ガスが吸着された後の残キャリアガスを、排出路を介して排出する工程と、
前記多孔質部材に吸着された前記処理ガスを脱離させる工程と、
前記濃縮タンクと前記基板が収容されたチャンバとの間に設けられた濃縮ガス流路を介し、前記脱離させた前記処理ガスを、前記チャンバへ供給し、前記基板の処理を行なう工程と、を有し、
前記混合ガス流路は、前記濃縮タンクへの前記混合ガスの供給、停止を行うように構成された混合ガス給断バルブを備え、前記濃縮ガス流路は、前記チャンバへの前記処理ガスの供給、停止を行うように構成された処理ガス給断バルブを備え、前記排出路は、前記残キャリアガスの排出を実行、停止するように構成された排出路バルブを備え、
前記残キャリアガスを排出する工程の実施期間中は、前記排出路バルブを開放して、前記処理ガス給断バルブを閉止し、
前記基板の処理を行なう工程にて、前記チャンバへ前記処理ガスが供給される期間中は、前記処理ガス給断バルブを開放して、前記混合ガス給断バルブ及び前記排出路バルブを閉止する、方法。 - 前記排出路は、前記処理ガス給断バルブの上流側の前記濃縮ガス流路に接続されている、請求項11に記載の方法。
- 前記原料は、液体または固体であり、
原料を収容した原料タンクにて、前記処理ガスの原料を気化させて前記処理ガスを得る工程を有する、請求項11または12に記載の方法。 - 前記処理ガスを脱離させる工程では、前記濃縮タンク内の前記多孔質部材を加熱して前記処理ガスを脱離させる、請求項11ないし13のいずれか一つに記載の方法。
- 前記金属有機構造体は、下記(a)~(d)に記載の金属有機構造体群から選択されたものである、請求項11ないし14のいずれか一つに記載の方法。
(a)銅イオンと1,3,5-ベンゼントリカルボン酸との配位結合によって構成される金属錯体を含み、前記金属錯体の複数が集積して形成された細孔構造を有する金属有機構造体
(b)鉄イオンと1,3,5-ベンゼントリカルボン酸との配位結合によって構成される金属錯体を含み、前記金属錯体の複数が集積して形成された細孔構造を有する金属有機構造体
(c)クロムイオンとテレフタル酸との配位結合によって構成される金属錯体を含み、前記金属錯体の複数が集積して形成された細孔構造を有する金属有機構造体
(d)ランタンイオンと1,3,5-トリス(4-カルボキシフェニル)ベンゼンとの配位結合によって構成される金属錯体を含み、前記金属錯体の複数が集積して形成された細孔構造を有する金属有機構造体 - 前記処理は基板に膜を形成する処理であり、前記原料は前記膜の原料であるハロゲン化金属である、請求項11ないし15のいずれか一つに記載の方法。
- 前記ハロゲン化金属は、塩化アルミニウム、五塩化タングステン及び四塩化チタンからなるハロゲン化金属群から選択されたものである、請求項16に記載の方法。
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Application Number | Priority Date | Filing Date | Title |
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JP2019200886A JP7516742B2 (ja) | 2019-11-05 | 2019-11-05 | 基板を処理する装置、処理ガスを濃縮する装置、及び基板を処理する方法 |
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