JP5662030B2 - ナノ要素を表面に接合させる方法、熱界面及び構造 - Google Patents
ナノ要素を表面に接合させる方法、熱界面及び構造 Download PDFInfo
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- JP5662030B2 JP5662030B2 JP2010013691A JP2010013691A JP5662030B2 JP 5662030 B2 JP5662030 B2 JP 5662030B2 JP 2010013691 A JP2010013691 A JP 2010013691A JP 2010013691 A JP2010013691 A JP 2010013691A JP 5662030 B2 JP5662030 B2 JP 5662030B2
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- layer
- metal
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- active metal
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Description
12 シリコンウェハー
16 熱ストラップ
20 第1銅/金層
30 第2銅/金層
50 金属箔
60 ヒート・シンク
62 インジウム層
70 保持
72 加熱
74 共晶
80 層
82 ヒート・シンク
84 インジウム箔
86 共晶
90 インジウム箔
92 ガリウム窒素デバイス
96 共晶接合
100 フローチャート
Claims (23)
- ナノ要素を表面に接合させる方法であって、ナノ要素はナノチューブ、ナノ繊維、及びナノロッドのうちの1つからなり、
金属層を、複数のほぼ整列したナノ要素の、ナノ要素配列の上端に適用するステップであって、金属層は、複数の整列したナノ要素の先端に接合された不活性な金属の層と、不活性な金属の層の上に適用された第1の活性金属の第1の層を含み、不活性な金属は銅であり、
第2の活性金属の層を第1の活性金属の第1の層に面するように位置づけするステップ、
ナノ要素、金属層、及び、第2の活性金属の第2の層に面する基板全体に圧縮力を付加して、ナノ要素と表面の間の共晶接合、金属固溶体、及び合金接合のうちの少なくとも一つの形成を促進するステップ、
第1および第2の活性金属が、ナノ要素と表面の間に、共晶接合、金属固溶体、及び合金接合のうちの少なくとも一つを形成するように、ナノ要素、金属層、及び基板の温度を上昇させるステップ
を含む方法。 - 金属層を適用するステップが、金、銀、ビスマス、銅、錫、ゲルマニウム、カドミウム、インジウム、及び亜鉛のうちの少なくとも一つを含む第1の活性金属の第1の層を適用するステップからなる、請求項1に記載の方法。
- 第2の活性金属の層を位置づけするステップが、金、銀、ビスマス、銅、錫、ゲルマニウム、カドミウム、インジウム、及び亜鉛のうちの少なくとも一つの層を適用するステップからなり、第2の層の金属が第1の層の金属とは異なる、請求項2に記載の方法。
- 複数のほぼ整列したナノ要素をシリコンウェハー上に成長させるステップをさらに含む、請求項1に記載の方法。
- シリコンウェハーを、共晶接合されたナノ要素から取り除くステップをさらに含む、請求項4に記載の方法。
- 金属層を複数のほぼ整列したナノ要素の、ナノ要素配列の上端に適用するステップが、個々のナノ要素の端部を固定するステップからなる、請求項1に記載の方法。
- 金属層を適用するステップが、蒸着プロセスを用いて金属層を適用するステップからなり、
第2の活性金属の第2の層を位置づけするステップが、第2の活性金属の箔を第1の活性金属に面するように配置するステップからなる、
請求項1に記載の方法。 - 第1の活性金属の第2の層を表面上に蒸着させるステップ、及び
表面上の第1の活性金属の第2の層とナノ要素上の第1の活性金属の第1の層との間に、第2の活性金属の層を配置するステップ
をさらに含む、請求項1に記載の方法。 - 金属層を複数のほぼ整列したナノ要素の、ナノ要素配列の上端に適用するステップが、金層を含む第1の活性金属の第1の層を不活性な金属の層の上に適用するステップからなり、
第2の活性金属の第2の層を位置づけするステップが、カドミウム層を金層に面するように配置するステップからなる、
請求項1に記載の方法。 - 金属層を複数のほぼ整列したナノ要素の、ナノ要素配列の上端に適用するステップが、金属層を、ほぼ整列したカーボンナノチューブ、ほぼ整列した窒化ホウ素ナノチューブ、ほぼ整列したホウ素ナノチューブ、ほぼ整列したホウ素ナノ繊維、ほぼ整列したシリコンナノロッド、ほぼ整列した窒化アルミニウムナノチューブ、ほぼ整列した窒化アルミニウムナノ繊維のうちの少なくとも一つの、複数の第1端部に適用するステップからなる、請求項1に記載の方法。
- 第2の活性金属の層を第1の活性金属の第1の層に面するように位置づけするステップが、
第2の活性金属を基板に適用するステップ、及び
第1の活性金属と第2の活性金属が隣接するように基板を位置づけするステップ
からなる、請求項1に記載の方法。 - 第1金属の層を、複数のほぼ整列したナノ要素の第2端部に適用するステップ、及び
第2金属の層を第1金属の層に面するように位置づけするステップ
をさらに含む、請求項1に記載の方法。 - 不活性な金属の層は複数のほぼ整列したナノ要素の少なくとも一部に浸透する、請求項1に記載の方法。
- 不活性な金属の層は不活性な金属のほぼ連続した層である、請求項1に記載の方法。
- 第1端部及び第2端部をそれぞれ有する複数のほぼ整列したナノ要素であって、ナノチューブ、ナノ繊維、及びナノロッドのうちの1つからなる、ナノ要素と、
前記ナノ要素の第1端部に接合した金属層であって、金属層は、ナノ要素の先端に接合された不活性な金属の層と、不活性な金属の層の上に適用された第1の活性金属の第1の層を含み、不活性な金属は銅である、金属層と、
前記第1の活性金属の層に面する第2の活性金属の層であって、第1の活性金属の層と第2の活性金属の層との間に、熱源と、ほぼ整列したナノ要素との間で熱を伝達するように、共晶接合、金属固溶体、及び合金接合のうちの少なくとも一つが形成される第2の活性金属の層と
を含む熱界面。 - 前記複数のほぼ整列したナノ要素が、カーボンナノチューブ、窒化ホウ素ナノチューブ、ホウ素ナノチューブ、ホウ素ナノ繊維、シリコンナノロッド、窒化アルミニウムナノチューブ、及び窒化アルミニウムナノ繊維のうちの少なくとも一つを含む、請求項15に記載の熱界面。
- 前記不活性な金属の層は、前記ナノ要素の第1端部を固定し、不活性な金属の層の上に蒸着される第1の活性金属の層は前記第2の活性金属の層と共晶接合を形成する、請求項16に記載の熱界面。
- 第1の活性金属の層が、金、銀、ビスマス、銅、錫、ゲルマニウム、カドミウム、インジウム、及び亜鉛のうちの少なくとも一つを含み、
第2の活性金属の層が、金、銀、ビスマス、銅、錫、ゲルマニウム、カドミウム、インジウム、及び亜鉛のうちの少なくとも一つを含み、第2の層の金属が第1の層の金属とは異なる、
請求項16に記載の熱界面。 - 第1の活性金属の層と同じ金属を含む第3の活性金属の層をさらに含み、第3の活性金属は熱源上に蒸着されており、第2の活性金属の層は第1及び第3の活性金属の層の間にある、請求項15に記載の熱界面。
- 第1の活性金属の層及び第2の活性金属の層のうちの少なくとも一方が合金を含む、請求項15に記載の熱界面。
- それぞれ第1端部及び第2端部を有する、複数のほぼ整列したナノ要素であって、ナノチューブ、ナノ繊維、及びナノロッドのうちの1つからなる、ナノ要素と、
前記ナノ要素の第1端部に接合した金属層であって、金属層は、ナノ要素の先端に接合された不活性な金属の層と、不活性な金属の層に適用された第1の活性金属の第1の層を含み、不活性な金属は銅である、金属層と、
前記第1の活性金属の層に面する第2の活性金属の層と、
基板であって、ナノ要素、第1と第2の活性金属の層、及び基板全体にわたる温度の上昇と圧縮力とによって、ナノ要素と基板との間に、共晶接合、金属固溶体、及び合金接合のうちの少なくとも一つが形成される基板
を含む構造。 - 前記ナノ要素の第2端部に接合した第1の活性金属の第2の層と、
前記第1の活性金属の第2の層に面する第2の活性金属の第2の層と、
第2の活性金属の第2の層に面するデバイスと
をさらに含む、請求項21に記載の構造。 - 第2の活性金属の第1の層及び第2の活性金属の第2の層が、
蒸着プロセス及び蒸発プロセスのうちの少なくとも一方を用いて適用されるか、又は
金属層に適用される箔を含む、
請求項22に記載の構造。
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