JP2022012502A - 成膜方法及び成膜装置 - Google Patents
成膜方法及び成膜装置 Download PDFInfo
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Abstract
Description
次に、ガス供給部40の構成について、図2を参照して説明する。図2は、一実施形態に係る成膜装置1に設けられたガス供給部40の構成の一例を示す図である。ガス供給部40は、原料容器41、COガス供給源42、ガスライン43、ソースライン44,45、COガスライン46,47、バイパスライン49、及びバルブVA、VB、VC、VDを有する。
次に、ガス供給部40におけるCO分圧の制御について説明する。原料容器41内及びソースライン43~45では、Ru3(CO)12はガスの状態で存在することが好ましい。ところが、Ru3(CO)12は、以下の反応式(1)の左から右に比較的容易に分解し、右に示すようにルテニウム(Ru)の析出を生じさせる。
Ru3(CO)12→3Ru+12CO
COの分圧が低いとRu3(CO)12の分解が促進される。反応式(1)の左から右へ化学反応が進むことで、原料容器41内及びソースライン43~45の内部空間で、例えばファイバー状のルテニウムが析出され、ソースライン43~45を通ってチャンバ101まで輸送され、基板W上に飛来してパーティクルとなる。
次に、成膜装置1の動作の一例について、図5及び図6を参照して説明する。図5は、一実施形態に係る成膜装置1が実行する成膜方法MT1の一例を示す流れ図である。図6は、図5の成膜方法MT1を説明するための図である。成膜方法MT1は、制御部120により制御される。なお、開始時において、チャンバ101内は、排気部119により真空雰囲気となっている。また、載置台105は受け渡し位置に移動している。
次に、成膜装置1のその他の動作の例について、図7及び図8を参照して説明する。図7は、一実施形態に係る成膜装置1が実行する成膜方法MT2の一例を示す流れ図である。図8は、図7の成膜方法MT2を説明するための図である。成膜方法MT2は、制御部120により制御される。図7の成膜方法MT2は、図5の成膜方法MT1を実行した後に実行してもよい。成膜方法MT2は、成膜プロセスを行っていない間に実行可能である。
12 シャワープレート
16 ガス導入口
40 ガス供給部
41 原料容器
42 COガス供給源
43 ガスライン
44、45 ソースライン
46,47 COガスライン
48 赤外線モニタ
49 バイパスライン
101 チャンバ
101c 処理室
105 載置台
106 ヒータ
120 制御部
VA、VB、VC、VD バルブ
W 基板
Claims (7)
- 原料容器に収容された原料のRu3(CO)12をチャンバに供給するソースラインと、キャリアガスのCOガスを前記原料容器に供給するCOガスラインと、前記ソースラインと前記COガスラインとを接続し、前記原料容器を介さないラインを形成するバイパスラインと、前記ソースラインに接続された第1のバルブと、を有する成膜装置にて実行する成膜方法であって、
(a)前記第1のバルブを開き、前記原料容器から前記ソースラインを介してRu3(CO)12とCOガスとを供給し、前記チャンバにて基板にルテニウム膜を形成する工程と、
(b)前記(a)の工程を終了した後、前記ソースラインを予め定められた第1の圧力以上に制御し、前記第1のバルブを閉じ、前記チャンバに対するRu3(CO)12とCOガスとの供給を停止する工程と、
を含む、成膜方法。 - 前記(b)の工程は、前記チャンバ内を予め定められた第2の圧力以上に制御し、前記ソースラインを前記第1の圧力以上に維持する、
請求項1に記載の成膜方法。 - 前記成膜装置は、前記バイパスラインに接続された第2のバルブを有し、
(c)前記(b)の工程の後、前記ソースラインを前記第1の圧力以上に維持した状態で前記第2のバルブを開き、前記バイパスラインを介してCOガスを前記チャンバに供給する工程を含む、
請求項1又は2に記載の成膜方法。 - 前記成膜装置は、前記バイパスラインと前記ソースラインとの接続位置よりも前記原料容器側の前記ソースラインに接続された前記第1のバルブと、前記バイパスラインと前記ソースラインとの接続位置よりも前記チャンバ側の前記ソースラインに接続された第3のバルブと、を有し、
(d)前記第1のバルブと前記第3のバルブとを閉じ、前記第2のバルブを開け、前記バイパスラインを介して前記第1のバルブと前記第3のバルブとの間の前記ソースラインにCOガスを充填する工程を含む、
請求項3に記載の成膜方法。 - 前記成膜装置は、前記第1のバルブと前記第3のバルブとの間の前記ソースラインに赤外線モニタを接続し、
(e)前記ソースラインの中のRu3(CO)12の原料ガスをモニタする工程を含む、
請求項4に記載の成膜方法。 - 原料容器に収容された原料のRu3(CO)12をチャンバに供給するソースラインと、キャリアガスのCOガスを前記原料容器に供給するCOガスラインと、前記ソースラインと前記COガスラインとを接続し、前記原料容器を介さないラインを形成するバイパスラインと、前記ソースラインに接続された第1のバルブと、制御部と、を有し、
前記制御部は、
(a)前記第1のバルブを開き、前記原料容器から前記ソースラインを介してRu3(CO)12とCOガスとを供給し、前記チャンバにて基板にルテニウム膜を形成する工程と、
(b)前記(a)の工程を終了した後、前記ソースラインを予め定められた第1の圧力以上に制御し、前記第1のバルブを閉じ、前記チャンバに対するRu3(CO)12とCOガスとの供給を停止する工程と、を制御する、
成膜装置。 - 前記第1のバルブは、前記バイパスラインと前記ソースラインとの接続位置よりも前記原料容器側の前記ソースラインに接続され、
前記成膜装置は、前記バイパスラインと前記ソースラインとの接続位置よりも前記チャンバ側の前記ソースラインに接続された第3のバルブと、
前記第1のバルブと前記第3のバルブとの間の前記ソースラインに接続された赤外線モニタと、を有する、
請求項6に記載の成膜装置。
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| Application Number | Priority Date | Filing Date | Title |
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| JP2020114371A JP7507619B2 (ja) | 2020-07-01 | 2020-07-01 | 成膜方法及び成膜装置 |
| PCT/JP2021/023771 WO2022004520A1 (ja) | 2020-07-01 | 2021-06-23 | 成膜方法及び成膜装置 |
| KR1020237002509A KR20230028471A (ko) | 2020-07-01 | 2021-06-23 | 성막 방법 및 성막 장치 |
| US18/002,950 US12344930B2 (en) | 2020-07-01 | 2021-06-23 | Deposition method and deposition apparatus |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006057112A (ja) * | 2004-08-17 | 2006-03-02 | Jsr Corp | 化学気相成長方法 |
| JP2008244298A (ja) * | 2007-03-28 | 2008-10-09 | Tokyo Electron Ltd | 金属膜の成膜方法、多層配線構造の形成方法、半導体装置の製造方法、成膜装置 |
| JP2016151025A (ja) * | 2015-02-16 | 2016-08-22 | 東京エレクトロン株式会社 | ルテニウム膜の成膜方法、成膜装置及び半導体装置の製造方法 |
| JP2020013966A (ja) * | 2018-07-20 | 2020-01-23 | 東京エレクトロン株式会社 | 成膜装置、原料供給装置及び成膜方法 |
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Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006057112A (ja) * | 2004-08-17 | 2006-03-02 | Jsr Corp | 化学気相成長方法 |
| JP2008244298A (ja) * | 2007-03-28 | 2008-10-09 | Tokyo Electron Ltd | 金属膜の成膜方法、多層配線構造の形成方法、半導体装置の製造方法、成膜装置 |
| JP2016151025A (ja) * | 2015-02-16 | 2016-08-22 | 東京エレクトロン株式会社 | ルテニウム膜の成膜方法、成膜装置及び半導体装置の製造方法 |
| JP2020013966A (ja) * | 2018-07-20 | 2020-01-23 | 東京エレクトロン株式会社 | 成膜装置、原料供給装置及び成膜方法 |
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| KR20230028471A (ko) | 2023-02-28 |
| WO2022004520A1 (ja) | 2022-01-06 |
| US20230272523A1 (en) | 2023-08-31 |
| JP7507619B2 (ja) | 2024-06-28 |
| US12344930B2 (en) | 2025-07-01 |
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