JP7599010B2 - 低抵抗及び高信頼性メタライゼーションモジュール - Google Patents
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Description
Claims (13)
- 電子デバイスを形成する方法であって、
前記電子デバイスを予洗浄すること、
第1のメタライゼーション層上の絶縁層の開口部の下部に金属層を選択的に堆積させることであって、前記開口部はトレンチとビアを含み、前記絶縁層は前記絶縁層の上面から前記第1のメタライゼーション層まで延在する前記開口部を含み、前記開口部は、少なくとも1つの側壁、上部、及び前記ビアである前記下部を有し、前記下部は下部バリア層を含まず、前記金属層は前記第1のメタライゼーション層まで延在する、金属層を選択的に堆積させること、
前記金属層ではなく、また前記開口部の前記ビアである前記下部ではなく、前記開口部の前記少なくとも1つの側壁にバリア層を選択的に堆積させることであって、前記バリア層を選択的に堆積させることは、前記金属層を平面炭化水素に曝露して、前記絶縁層ではなく前記金属層上にブロッキング層を形成することを含み、前記平面炭化水素が、アントラセン、ベンゼン、ナフタレン、トルエン、エチルベンゼン、フェナントレン、メシチレンのうちの1以上を含む、バリア層を選択的に堆積させること、並びに
前記開口部の前記上部内で前記金属層及び前記バリア層上に第2のメタライゼーション層を形成することを含む、方法。 - 基板をプラズマに曝露することを更に含む、請求項1に記載の方法。
- 前記第1のメタライゼーション層、前記第2のメタライゼーション層、及び前記金属層は、独立して、銅(Cu)、コバルト(Co)、ルテニウム(Ru)、イリジウム(Ir)、ロジウム(Rh)、モリブデン(Mo)、タングステン(W)、アルミニウム(Al)、ニッケル(Ni)、及びプラチナ(Pt)のうちの1以上から選択される金属を含む、請求項1に記載の方法。
- 前記第1のメタライゼーション層と前記第2のメタライゼーション層は、同じ金属を含む、請求項3に記載の方法。
- 前記バリア層は、前記ビア内に形成されない、請求項1に記載の方法。
- 前記バリア層は、前記ビア内に形成される、請求項1に記載の方法。
- 前記絶縁層は、二酸化ケイ素、酸化ケイ素、炭素がドープされた酸化物、炭化ケイ素、窒化ケイ素(SiN)のうちの1以上を含む、請求項1に記載の方法。
- 前記方法は、減圧を壊すことなしにクラスタツール内で実行される、請求項1に記載の方法。
- 電子デバイスを形成する方法であって、
基板上の開口部内に金属層を選択的に堆積させることであって、前記基板は第1のメタライゼーション層上に絶縁層を含み、前記絶縁層は前記絶縁層の上面から前記第1のメタライゼーション層まで延在する前記開口部を含み、前記金属層は前記第1のメタライゼーション層まで延在する、金属層を選択的に堆積させること、
前記金属層ではなく前記絶縁層の前記上面にバリア層を選択的に堆積させること、
前記金属層及び前記バリア層上に第2のメタライゼーション層を形成すること、並びに
トレンチを形成するために、前記第2のメタライゼーション層をエッチングすることを含み、
前記バリア層を選択的に堆積させることは、前記絶縁層ではなく前記金属層上にブロッキング層を形成することを含み、
前記ブロッキング層を形成することは、前記金属層を平面炭化水素に曝露することを含み、
前記平面炭化水素が、アントラセン、ベンゼン、ナフタレン、トルエン、エチルベンゼン、フェナントレン、メシチレンのうちの1以上を含む、方法。 - 前記金属層、前記第1のメタライゼーション層、及び前記第2のメタライゼーション層は、独立して、銅(Cu)、コバルト(Co)、ルテニウム(Ru)、イリジウム(Ir)、ロジウム(Rh)、モリブデン(Mo)、タングステン(W)、アルミニウム(Al)、ニッケル(Ni)、及びプラチナ(Pt)のうちの1以上から選択される金属を含む、請求項9に記載の方法。
- 電子デバイスを形成する方法であって、
基板上の少なくとも1つのフィーチャ内に金属層を選択的に堆積させることであって、前記基板は、第1の絶縁層、第1のメタライゼーション層、及び前記少なくとも1つのフィーチャをその上に含む、金属層を選択的に堆積させること、
前記第1の絶縁層の上面及び前記金属層の上面にエッチング停止層を堆積させること、
前記エッチング停止層の上面に第2の絶縁層を堆積させること、
前記第2の絶縁層の上面から前記金属層の上面まで延在する開口部を形成するために、単一のダマシンプロセスを実行すること、
前記金属層上ではなく前記開口部内にバリア層を選択的に堆積させること、並びに
前記金属層及び前記バリア層上に第2のメタライゼーション層を形成することを含み、
前記バリア層を選択的に堆積させることは、前記第1の絶縁層ではなく、また前記第2の絶縁層ではなく、前記金属層上にブロッキング層を形成することを含み、
前記ブロッキング層を形成することは、前記金属層を平面炭化水素に曝露することを含み、
前記平面炭化水素が、アントラセン、ベンゼン、ナフタレン、トルエン、エチルベンゼン、フェナントレン、メシチレンのうちの1以上を含む、方法。 - 前記金属層、前記第1のメタライゼーション層、及び前記第2のメタライゼーション層は、独立して、銅(Cu)、コバルト(Co)、ルテニウム(Ru)、イリジウム(Ir)、ロジウム(Rh)、モリブデン(Mo)、タングステン(W)、アルミニウム(Al)、ニッケル(Ni)、及びプラチナ(Pt)のうちの1以上から選択される金属を含む、請求項11に記載の方法。
- 処理ツールであって、
内部に基板支持体を有する予洗浄チャンバ、
選択的金属堆積チャンバ、
バリア金属堆積チャンバ、
金属堆積チャンバ、
PVD金属堆積チャンバ、
CVD金属堆積チャンバ、
予洗浄機能を有するブロッキング層堆積チャンバ、
ライナー金属堆積チャンバ、
プラズマチャンバ、
エッチングチャンバ、
前記予洗浄チャンバ、前記選択的金属堆積チャンバ、前記ブロッキング層堆積チャンバ、前記バリア金属堆積チャンバ、前記PVD金属堆積チャンバ、前記プラズマチャンバ、前記エッチングチャンバ、前記ライナー金属堆積チャンバ、前記CVD金属堆積チャンバ、及び前記PVD金属堆積チャンバにアクセスするように構成されたロボット、並びに
前記予洗浄チャンバ、前記選択的金属堆積チャンバ、前記ブロッキング層堆積チャンバ、前記バリア金属堆積チャンバ、前記PVD金属堆積チャンバ、前記プラズマチャンバ、前記エッチングチャンバ、前記ライナー金属堆積チャンバ、前記CVD金属堆積チャンバ、前記PVD金属堆積チャンバ、及び前記ロボットに接続されたコントローラであって、基板を洗浄すること、前記基板上の絶縁層ではなく前記基板上の金属層上を平面炭化水素に曝露してブロッキング層を選択的に形成すること、ライナーを選択的に堆積させること、金属ライナーを形成すること、メタライゼーション層を形成すること、前記基板をエッチングすること、及び前記ブロッキング層を除去すること、の構成を有するコントローラを備え、
前記平面炭化水素が、アントラセン、ベンゼン、ナフタレン、トルエン、エチルベンゼン、フェナントレン、メシチレンのうちの1以上を含む、処理ツール。
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| CN116325120A (zh) | 2023-06-23 |
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| KR102949503B1 (ko) | 2026-04-06 |
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| EP4226418A1 (en) | 2023-08-16 |
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