JP7519445B2 - 選択的間隙充填のための低温プラズマ前洗浄 - Google Patents
選択的間隙充填のための低温プラズマ前洗浄 Download PDFInfo
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- H01L21/71—Manufacture of specific parts of devices defined in group H01L21/70
- H01L21/768—Applying interconnections to be used for carrying current between separate components within a device comprising conductors and dielectrics
- H01L21/76838—Applying interconnections to be used for carrying current between separate components within a device comprising conductors and dielectrics characterised by the formation and the after-treatment of the conductors
- H01L21/76877—Filling of holes, grooves or trenches, e.g. vias, with conductive material
- H01L21/76883—Post-treatment or after-treatment of the conductive material
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- H01J37/00—Discharge tubes with provision for introducing objects or material to be exposed to the discharge, e.g. for the purpose of examination or processing thereof
- H01J37/32—Gas-filled discharge tubes
- H01J37/32009—Arrangements for generation of plasma specially adapted for examination or treatment of objects, e.g. plasma sources
- H01J37/32082—Radio frequency generated discharge
- H01J37/32174—Circuits specially adapted for controlling the RF discharge
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- H—ELECTRICITY
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- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J37/00—Discharge tubes with provision for introducing objects or material to be exposed to the discharge, e.g. for the purpose of examination or processing thereof
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- H01J37/32431—Constructional details of the reactor
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- H01L21/02057—Cleaning during device manufacture
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- H01L21/76801—Applying interconnections to be used for carrying current between separate components within a device comprising conductors and dielectrics characterised by the formation and the after-treatment of the dielectrics, e.g. smoothing
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Description
Claims (20)
- 前洗浄する方法であって、前記方法が、
ペデスタル上に載っており、タングステン(W)、コバルト(Co)及びルテニウム(Ru)の1つ又は複数を含む金属底部表面、誘電体材料を含む曝露した側壁表面、および誘電体のフィールドを含む表面構造を含む、基板を、酸素プラズマを含むプラズマ処置に曝露して、前記金属底部表面、前記誘電体材料を含む曝露した側壁表面、および前記誘電体の前記フィールドから化学残留物および/または不純物を除去し、ならびに/または前記誘電体材料を含む曝露した側壁表面および前記誘電体の前記フィールドの表面欠陥を修復することと、
プラズマの電力を設定し、冷却機構を含む前記ペデスタルの温度を-20℃以上60度以下に設定することと
を含み、前記前洗浄は、前記金属底部表面上の選択的金属堆積を促進するのに有効である、方法。 - 前記ペデスタルが高周波(RF)能力を含む、請求項1に記載の方法。
- 前記酸素プラズマが直接プラズマである、請求項1に記載の方法。
- 前記プラズマ処置が水素プラズマをさらに含む、請求項1に記載の方法。
- 200W以上1000W以下の範囲のバイアスが、前記基板を前記プラズマ処置に曝露する間前記基板に印加される、請求項1に記載の方法。
- 前記ペデスタルが、前記基板を前記プラズマ処置に曝露する間-20℃以上40℃以下の範囲の温度に維持される、請求項5に記載の方法。
- 前記誘電体材料を含む曝露した側壁表面及び前記誘電体のフィールドが、窒化ケイ素(SiN)、酸化ケイ素(SiO)、酸窒化ケイ素(SiON)、または高誘電率誘電体のうちの1つまたは複数を含む、請求項1に記載の方法。
- プラズマの電力を設定し、処理チャンバ内のペデスタルの温度を-20℃以上60℃以下に設定することであり、前記ペデスタルが、高周波(RF)能力および冷却機構を含む、設定することと、
前記ペデスタル上に載っており、タングステン(W)、コバルト(Co)及びルテニウム(Ru)の1つ又は複数を含む金属底部表面、誘電体材料を含む曝露した誘電体側壁表面、および誘電体のフィールドを含む表面構造を含む、基板を前記処理チャンバ内でプラズマ処置に曝露して、前記金属底部表面、誘電体材料を含む曝露した誘電体側壁表面、および前記誘電体の前記フィールドから化学残留物および/または不純物を除去し、ならびに/または誘電体材料を含む曝露した誘電体側壁表面および前記誘電体の前記フィールドの表面欠陥を修復することであり、前記プラズマ処置が酸素プラズマを含む、修復することと、
前記金属底部表面上で選択的金属堆積成長を促進することによって、金属膜を前記基板上に選択的に形成するために、前記基板を前記金属の少なくとも1つの前駆体に曝露することと
を含む、処理方法。 - 前記酸素プラズマが直接プラズマである、請求項8に記載の方法。
- 200W以上1000W以下の範囲のバイアスが、前記基板を前記プラズマ処置に曝露する間前記基板に印加される、請求項8に記載の方法。
- 前記ペデスタルが、前記基板を前記プラズマ処置に曝露する間-20℃以上40℃以下の範囲の温度に維持される、請求項10に記載の方法。
- 曝露した誘電体側壁表面及び前記誘電体のフィールドが、窒化ケイ素(SiN)、酸化ケイ素(SiO)、酸窒化ケイ素(SiON)、または高誘電率誘電体のうちの1つまたは複数を含む、請求項8に記載の方法。
- 処理チャンバのコントローラによって実行されたとき、前記処理チャンバに、
第1の処理チャンバ内の冷却機構を含むペデスタル上のタングステン(W)、コバルト(Co)及びルテニウム(Ru)の1つ又は複数を含む金属底部表面、誘電体材料を含む曝露した誘電体側壁表面、および誘電体のフィールドを含む表面構造を含む基板を、前記第1の処理チャンバ内で酸素プラズマを含むプラズマ処置に曝露する操作と、
プラズマの電力を設定し、前記ペデスタルの温度を-20以上60℃以下に設定して、誘電体材料を含む曝露した誘電体側壁表面の表面欠陥を修復し、前記金属底部表面上の選択的金属堆積を促進する操作と
を実行させる命令を含む、非一時的コンピュータ可読媒体。 - 前記ペデスタルが高周波(RF)能力を含む、請求項13に記載の非一時的コンピュータ可読媒体。
- 処理チャンバのコントローラによって実行されたとき、前記処理チャンバに、前記基板を水素プラズマに曝露する操作を実行させる命令をさらに含む、請求項13に記載の非一時的コンピュータ可読媒体。
- 前記酸素プラズマが直接プラズマである、請求項15に記載の非一時的コンピュータ可読媒体。
- 処理チャンバのコントローラによって実行されたとき、前記処理チャンバに、200W以上1000W以下の範囲のバイアスをプラズマ曝露の間前記基板に印加する操作を実行させる命令をさらに含む、請求項13に記載の非一時的コンピュータ可読媒体。
- 処理チャンバのコントローラによって実行されたとき、前記処理チャンバに、前記ペデスタルをプラズマ曝露の間-20℃以上40℃以下の範囲の温度に維持する操作を実行させる命令をさらに含む、請求項13に記載の非一時的コンピュータ可読媒体。
- 誘電体材料を含む曝露した誘電体側壁及び前記誘電体のフィールドが、窒化ケイ素(SiN)、酸化ケイ素(SiO)、酸窒化ケイ素(SiON)、または高誘電率誘電体のうちの1つまたは複数を含む、請求項13に記載の非一時的コンピュータ可読媒体。
- 前記プラズマ処置は、水素プラズマをさらに含む、請求項8に記載の方法。
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