JP2018512727A - 高品質薄膜を形成するための周期的連続処理 - Google Patents
高品質薄膜を形成するための周期的連続処理 Download PDFInfo
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- JP2018512727A JP2018512727A JP2017544598A JP2017544598A JP2018512727A JP 2018512727 A JP2018512727 A JP 2018512727A JP 2017544598 A JP2017544598 A JP 2017544598A JP 2017544598 A JP2017544598 A JP 2017544598A JP 2018512727 A JP2018512727 A JP 2018512727A
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Abstract
Description
Claims (15)
- 基板を処理するための方法であって、
基板の特徴の中に、厚さを有する第1の流動性膜を形成することであって、前記厚さが前記特徴の高さより小さく、
前記特徴の中に第1の流動性膜を堆積させることと、
前記基板を酸素含有プラズマに曝すことと、
前記基板を紫外線に曝すことと
を含む、第1の流動性膜を形成することと、
前記第1の流動性膜の上に第2の流動性膜の一又は複数の層を形成するために、前記第1の流動性膜を形成する処理を繰り返すことであって、前記第1の流動性膜及び前記第2の流動性膜の一又は複数の層は全体で前記特徴の前記高さ以上の膜厚を有している、繰り返すことと
を含む、方法。 - 前記第1の流動性膜を堆積させることが、
前記基板が配置される基板処理チャンバの中の処理領域にケイ素含有前駆体を供給することと、
プラズマ活性化ガスを形成するために遠隔プラズマシステムにガスを供給することと、
前記プラズマ活性化ガスの少なくとも一部を前記処理領域内に導入することと、
前記特徴の中に前記流動性膜を形成するために、前記プラズマ活性化ガス及び前記ケイ素含有前駆体を反応させることと
を含む、請求項1に記載の方法。 - 前記基板を前記酸素含有プラズマに曝すことが、前記基板を窒素含有プラズマに曝すことを更に含む、請求項1に記載の方法。
- 前記基板を前記酸素含有プラズマに曝すことが、前記基板を炭素含有プラズマに曝すことを更に含む、請求項1に記載の方法。
- 前記基板を紫外線に曝すことは、前記基板が紫外線に曝される間、前記基板を100℃未満に維持されたペデスタルの上に位置付けることを更に含む、請求項1に記載の方法。
- 前記第1の流動性膜を形成する前記処理を繰り返すときに、前記第1の流動性膜及び前記第2の流動性膜の一又は複数の層の各々の厚さが、前記処理の繰り返し毎に増加する、請求項1に記載の方法。
- 前記第1の流動性膜及び前記第2の流動性膜の一又は複数の層が各々、実質的に同一の厚さを有している、請求項1に記載の方法。
- 基板の中に特徴を充填するための方法であって、
少なくとも1つの前記特徴の中に厚さを有する流動性誘電体膜を形成することであって、前記厚さが前記特徴の高さより小さく、
基板が配置される処理チャンバの中の処理領域にケイ素前駆体を供給することと、
プラズマを形成することと、
前記プラズマに曝されたガスの少なくとも一部を前記基板処理領域内に導入することと
を含む、流動性誘電体膜を形成することと、
前記基板を酸素含有プラズマに曝すことと、
前記基板を紫外線に曝すことと、
前記流動性膜の上に流動性膜の追加の層を形成するために、先述のステップを繰り返すことであって、幾つかの前記層は全体で、少なくとも1つの前記特徴の高さ以上の膜厚を有する流動性膜スタックを形成する、繰り返すことと
を含む方法。 - 前記流動性膜スタックが均一の密度を有している、請求項8に記載の方法。
- 前記流動性膜を形成する前記処理を繰り返すときに、前記流動性膜の追加の層の各々の厚さが、前記処理の繰り返し毎に増加する、請求項8に記載の方法。
- 層を形成する方法であって、
第1の基板処理チャンバ内に配置された、パターン形成された基板の上に酸素を含まない前駆体を流すことと、
前記パターン形成された基板の上に厚さを有する膜を堆積させることであって、前記厚さが前記基板の上の特徴の深さより小さい、堆積させることと、
前記パターン形成された基板をプラズマに曝すことと、
紫外線源を備えた第2の基板処理チャンバ内に前記パターン形成された基板を移送することと、
前記紫外線源によって供給された紫外線に前記パターン形成された基板を曝すことと、
流動性膜の上に流動性膜の追加の層を形成するために、先述のステップを繰り返すことであって、幾つかの前記層は全体で、均一の密度及び少なくとも1つの前記特徴の高さ以上の膜厚を有する流動性膜スタックを形成する、繰り返すことと
を含む方法。 - 前記方法が連続的不活性条件下で実行される、請求項11に記載の方法。
- 前記プラズマが、酸素含有プラズマ、窒素含有プラズマ、又は炭素含有プラズマである、請求項11に記載の方法。
- 前記パターン形成された基板を前記紫外線に曝す間、前記パターン形成された基板が100℃未満で維持されたペデスタルの上に配置される、請求項11に記載の方法。
- 各連続的繰り返しについて、前記膜の前記厚さが前の繰り返しにおける前記膜の前記厚さより大きい、請求項11に記載の方法。
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