JP6886557B2 - 改善された金属コンタクトランディング構造 - Google Patents
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Description
Claims (15)
- 半導体構造を形成する方法であって、
処理チャンバの遠隔プラズマ領域でフッ素含有前駆体のプラズマを形成すること;
半導体基板を前記プラズマの放出物と接触させることであって、前記半導体基板が前記処理チャンバの処理領域に収容される、接触させること;
露出した窒化物材料を前記プラズマの放出物で選択的に洗浄すること;及び
その後、前記洗浄した窒化物材料上にキャップ材料を堆積させることであって、該キャップ材料が誘電体材料の露出領域に対して前記窒化物材料上に選択的に堆積される、堆積させること
を含む、半導体構造を形成する方法。 - エッチングが第1の処理チャンバ内で行われ、堆積が第2の処理チャンバ内で行われる、請求項1に記載の半導体構造を形成する方法。
- 前記第1の処理チャンバから前記第2の処理チャンバへ前記半導体基板を移送することをさらに含み、前記移送が真空破壊することなく行われる、請求項2に記載の半導体構造を形成する方法。
- 前記窒化物材料及び前記キャップ材料を選択的にエッチングして間隙を形成することをさらに含む、請求項1に記載の半導体構造を形成する方法。
- 前記エッチングが湿式エッチング又はプラズマ強化エッチングを含む、請求項4に記載の半導体構造を形成する方法。
- 前記間隙内に金属材料を形成することをさらに含み、前記金属材料が窒化チタン又はタングステンを含む、請求項4に記載の半導体構造を形成する方法。
- 前記キャップ材料が窒化ケイ素を含む、請求項1に記載の半導体構造を形成する方法。
- 前記誘電体材料が酸化ケイ素を含む、請求項1に記載の半導体構造を形成する方法。
- 前記堆積が、約2:1以上の前記窒化物材料の前記誘電体材料に対する選択性で行われる、請求項1に記載の半導体構造を形成する方法。
- 前記キャップ材料を選択的に堆積させることが、前記誘電体材料上の前記キャップ材料の成長を抑制することを含む、請求項1に記載の半導体構造を形成する方法。
- 前記基板が、窒化物材料と誘電体材料の交互の層を含み、前記キャップ材料が、別々のキャップ材料構成間の間隔を維持するように形成される、請求項1に記載の半導体構造を形成する方法。
- 半導体構造を形成する方法であって、
処理チャンバの遠隔プラズマ領域でフッ素含有前駆体のプラズマを形成すること;
半導体基板を前記プラズマの放出物と接触させることであって、前記半導体基板が前記処理チャンバの処理領域に収容される、接触させること;
前記半導体基板上の誘電体材料の露出領域に近接して配置された窒化物材料の露出領域を選択的に洗浄すること;及び
その後、前記窒化物材料上にキャップ材料を形成することであって、該キャップ材料が、前記誘電体材料の露出領域に対して前記窒化物材料の上に選択的に形成される、形成すること
を含む、方法。 - 前記基板が、前記窒化物材料の第1の露出領域と、前記誘電体材料の露出領域によって垂直方向に分離された前記窒化物材料の第2の露出領域とを含み、前記誘電体材料が酸化ケイ素を含み、かつ前記キャップ材料が窒化ケイ素を含む、請求項12に記載の半導体構造を形成する方法。
- 前記窒化物材料の各露出領域が、露出した上面と、前記上面に対して垂直な露出した側壁とを含み、前記キャップ材料が、第1の窒化物材料及び第2の窒化物材料の前記露出した上面及び前記露出した側壁の上に形成され、前記第1の窒化物材料の上に形成されたキャップ材料が、形成後に前記第2の窒化物材料の上に形成された前記キャップ材料と接触していない、請求項13に記載の半導体構造を形成する方法。
- 第1の窒化物材料、第2の窒化物材料、及びキャップ材料を前記半導体基板から除去することをさらに含む、請求項12に記載の半導体構造を形成する方法。
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US201762541384P | 2017-08-04 | 2017-08-04 | |
US62/541,384 | 2017-08-04 | ||
PCT/US2018/043496 WO2019027738A1 (en) | 2017-08-04 | 2018-07-24 | ENHANCED METAL CONTACT LANDING STRUCTURE |
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JP (1) | JP6886557B2 (ja) |
KR (1) | KR102505902B1 (ja) |
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WO2021108297A1 (en) * | 2019-11-27 | 2021-06-03 | Applied Materials, Inc. | Dual plasma pre-clean for selective gap fill |
JP7227122B2 (ja) * | 2019-12-27 | 2023-02-21 | 株式会社Kokusai Electric | 基板処理方法、半導体装置の製造方法、基板処理装置、およびプログラム |
US11587796B2 (en) | 2020-01-23 | 2023-02-21 | Applied Materials, Inc. | 3D-NAND memory cell structure |
JP7072012B2 (ja) | 2020-02-27 | 2022-05-19 | 株式会社Kokusai Electric | 基板処理方法、半導体装置の製造方法、基板処理装置、及びプログラム |
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TWI854186B (zh) | 2021-02-17 | 2024-09-01 | 美商應用材料股份有限公司 | 依序電漿及熱處理 |
CN112909005B (zh) * | 2021-03-26 | 2022-12-27 | 长江存储科技有限责任公司 | 一种三维存储器及其制备方法 |
TWI858319B (zh) | 2021-04-01 | 2024-10-11 | 美商應用材料股份有限公司 | 半導體記憶體元件以及形成彼之方法 |
US11756785B2 (en) * | 2021-08-20 | 2023-09-12 | Applied Materials, Inc. | Molecular layer deposition contact landing protection for 3D NAND |
KR20230126792A (ko) * | 2022-02-24 | 2023-08-31 | 주성엔지니어링(주) | 기판처리방법 |
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JP6419762B2 (ja) * | 2016-09-06 | 2018-11-07 | 株式会社Kokusai Electric | 半導体装置の製造方法、基板処理装置およびプログラム |
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CN111033699B (zh) | 2023-10-13 |
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KR102505902B1 (ko) | 2023-03-06 |
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