JP2018182328A - 誘電体基板上の誘電体材料の選択的な縦方向成長の方法 - Google Patents
誘電体基板上の誘電体材料の選択的な縦方向成長の方法 Download PDFInfo
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- JP2018182328A JP2018182328A JP2018076934A JP2018076934A JP2018182328A JP 2018182328 A JP2018182328 A JP 2018182328A JP 2018076934 A JP2018076934 A JP 2018076934A JP 2018076934 A JP2018076934 A JP 2018076934A JP 2018182328 A JP2018182328 A JP 2018182328A
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- silanol
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Abstract
【解決手段】第2の材料で充填された凹状フィーチャを有する第1の材料を含む平坦化された基板を提供するステップと、第1の材料よりも第2の材料上にグラフェン層を選択的に付着させるステップと、グラフェン層よりも第1の材料上にSiO2膜を選択的に付着させるステップと、グラフェン層を基板から除去するステップと、を含む。第1の材料は、第1の材料は誘電体材料を含み、第2の材料は金属層を含む。
【選択図】図1
Description
Claims (20)
- 基板処理方法であって、
第2の材料で充填された凹状フィーチャを有する第1の材料を含む、平坦化された基板を提供するステップと、
前記第1の材料よりも前記第2の材料上にグラフェン層を選択的に付着させるステップと、
前記グラフェン層よりも前記第1の材料上にSiO2膜を選択的に付着させるステップと、
前記グラフェン層を前記基板から除去するステップと、を含む方法。 - 前記第2の材料を前記凹状フィーチャから除去する、請求項1に記載の方法。
- 前記SiO2膜を選択的に付着させるステップは、
前記第1の材料を金属含有触媒層で被覆するステップと、
いかなる酸化剤又は加水分解剤なしで、プラズマなしで、前記基板を約150℃以下の基板温度でシラノールガスを含むプロセスガスに暴露するステップと、を含む、請求項1に記載の方法。 - 前記被覆するステップ及び前記暴露するステップを少なくとも1回繰り返して、前記第1の材料上のSiO2膜の厚さを増加させるステップをさらに含む、請求項3に記載の方法。
- 前記金属含有触媒層は、アルミニウム、チタン、又はそれらの組み合わせを含む、請求項3に記載の方法。
- 前記金属含有触媒層は、Al、Al2O3、AlN、AlON、Al含有前駆体、Al合金、CuAl、TiAlN、TaAlN、Ti、TiAlC、TiO2、TiON、TiN、Ti含有前駆体、Ti合金、及びそれらの組み合わせからなる群から選択される、請求項3に記載の方法。
- 前記被覆するステップは、前記基板をAlMe3ガスに暴露するステップを含む、請求項3に記載の方法。
- 前記シラノールガスは、トリス(tert−ペントキシ)シラノール、トリス(tert−ブトキシ)シラノール、及びビス(tert−ブトキシ)(イソプロポキシ)シラノールからなる群から選択される、請求項3に記載の方法。
- 前記第1の材料が誘電体材料を含み、前記第2の材料が金属層を含む、請求項1に記載の方法。
- 前記金属層は、Ni、Cu、及びRuからなる群から選択される、請求項9に記載の方法。
- 前記SiO2膜を選択的に付着させるステップは、前記第2の材料で充填された前記凹状フィーチャと整合する第2の凹状フィーチャを形成し、
当該方法は、前記第2の凹状フィーチャを第3の材料で充填するステップをさらに含む、請求項1に記載の方法。 - 前記第3の材料は、Ni、Cu及びRuから選択される金属層を含む、請求項11に記載の方法。
- 前記SiO2膜よりも第3の材料上に追加グラフェン層を選択的に付着させるステップと、
前記追加グラフェン層よりも前記SiO2膜上に追加SiO2膜を選択的に付着させるステップと、
前記追加グラフェン層を前記第3の材料から除去するステップと、をさらに含む、請求項11に記載の方法。 - 前記第3の材料を前記基板から除去するステップをさらに含む、請求項13に記載の方法。
- 前記第2の材料及び第3の材料を除去するステップをさらに含む、請求項13に記載の方法。
- 前記追加SiO2膜を選択的に付着させるステップは、
前記SiO2膜を金属含有触媒層で被覆するステップと、
いかなる酸化剤又は加水分解剤なしで、プラズマなしで、前記基板を約150℃以下の基板温度でシラノールガスを含むプロセスガスに暴露するステップと、を含む、請求項13に記載の方法。 - 前記被覆するステップ及び前記暴露するステップを少なくとも1回繰り返して、前記SiO2膜上の追加SiO2膜の厚さを増加させるステップをさらに含む、請求項16に記載の方法。
- 前記金属含有触媒層は、アルミニウム、チタン、又はそれらの組み合わせを含む、請求項16に記載の方法。
- 前記金属含有触媒層は、Al、Al2O3、AlN、AlON、Al含有前駆体、Al合金、CuAl、TiAlN、TaAlN、Ti、TiAlC、TiO2、TiON、TiN、Ti含有前駆体、Ti合金、及びそれらの組み合わせからなる群から選択される、請求項16に記載の方法。
- 前記シラノールガスは、トリス(tert−ペントキシ)シラノール、トリス(tert−ブトキシ)シラノール、及びビス(tert−ブトキシ)(イソプロポキシ)シラノールからなる群から選択される、請求項16に記載の方法。
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