JP6034472B2 - 多部品出力構造体及びその形成方法 - Google Patents
多部品出力構造体及びその形成方法 Download PDFInfo
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- JP6034472B2 JP6034472B2 JP2015223076A JP2015223076A JP6034472B2 JP 6034472 B2 JP6034472 B2 JP 6034472B2 JP 2015223076 A JP2015223076 A JP 2015223076A JP 2015223076 A JP2015223076 A JP 2015223076A JP 6034472 B2 JP6034472 B2 JP 6034472B2
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- H01L2924/1306—Field-effect transistor [FET]
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- H01L2924/11—Device type
- H01L2924/13—Discrete devices, e.g. 3 terminal devices
- H01L2924/1304—Transistor
- H01L2924/1306—Field-effect transistor [FET]
- H01L2924/13091—Metal-Oxide-Semiconductor Field-Effect Transistor [MOSFET]
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L2924/00—Indexing scheme for arrangements or methods for connecting or disconnecting semiconductor or solid-state bodies as covered by H01L24/00
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Description
[1]
電気自動車に用いるための多部品出力構造体を形成する方法であって、
半導体ダイ、第一の金属層と第二の金属層を有する絶縁性基板、及び液体冷却用の密閉された通路を有するサーマルデバイスを準備すること、
導電性及び熱伝導性である第一の一時的液相ボンドにより半導体ダイと絶縁性基板の第一の金属層を結合させること、
絶縁性基板の第二の金属層とサーマルデバイスの間に母材系を固定すること、ここでこの母材系は比較的融点の低い低温材料と比較的融点の高い高温材料を含み、この比較的低い融点は比較的高い融点よりも低い、
母材系を比較的低い融点よりも高く、比較的高い融点よりも低い融点に加熱して低温材料を高温材料中に拡散させること、
母材系を固化させて導電性及び熱伝導性である第二の一時的液相ボンドを形成することを含む方法。
[2]
絶縁性基板の第二の層を母材系の高温材料の第一の層でコートすること、及び
サーマルデバイスの表面を母材系の高温材料の第二の層でコートすること
をさらに含む、項目1記載の方法。
[3]
母材系の高温材料の第一の層及び母材系の高温材料の第二の層が電気メッキ、無電解メッキ、又はスパッタ蒸着により形成される、項目2記載の方法。
[4]
母材系の高温材料の第一の層と母材系の高温材料の第二の層の間に層状プレフォームを配置することをさらに含み、この層状プレフォームが母材系の高温材料の第一の層と母材系の高温材料の第二の層の間に配置された高温材料の第三の層を含む、項目2記載の方法。
[5]
母材系の高温材料の第一の層と母材系の高温材料の第二の層の間に1つの合金プレフォームを配置することをさらに含み、この1つの合金プレフォームが低温材料を含む、項目2記載の方法。
[6]
母材系の高温材料の第一の層と母材系の高温材料の第二の層の間にペーストを配置することをさらに含み、このペーストが低温材料を含む、項目2記載の方法。
[7]
前記ペーストが高温材料を含む、項目6記載の方法。
[8]
母材系の高温材料の第一の層及び/又は母材系の高温材料の第二の層に母材系の低温材料の層をコートすることをさらに含む、項目2記載の方法。
[9]
前記サーマルデバイスがアルミニウムより形成されている、項目1記載の方法。
[10]
前記多部品出力構造体が約−40℃〜約200℃の作動温度で作動可能である、項目1記載の方法。
[11]
前記高温材料がAu、Ag、Ni、又はCuを含み、前記低温材料がSn又はInを含む、項目1記載の方法。
[12]
前記第二の一時的液相ボンドが比較的低い融点よりも高い融点を有する、項目1記載の方法。
[13]
電気自動車に用いるための、約−40℃〜約200℃の作動温度を有する多部品出力構造体を形成する方法であって、
比較的融点の低い低温材料と比較的融点の高い高温材料を含む母材系を準備すること、ここでこの比較的低い融点は比較的高い融点よりも低い、
多部品出力構造体を構成する第一の出力部品の第一の表面を母材系の高温材料の第一の層でコートすること、
サーマルデバイスの第二の表面を母材系の高温材料の第二の層でコートすること、ここでこの母材系の高温材料の第一の層及び母材系の高温材料の第二の層は、母材系を構成する前に電気メッキ、無電解メッキ、又はスパッタ蒸着により形成されている、
サーマルデバイスと第一の出力部品の間に母材系を固定すること、ここでサーマルデバイスは液体冷却用の密閉された通路を有する、
母材系を比較的低い融点よりも高くかつ比較的高い融点よりも低い温度に加熱して低温材料を高温材料中に拡散させること、
母材系を固化させて導電性及び熱伝導性である第一の一時的液相ボンドを形成すること、
第二の一時的液相ボンドを形成して第一の出力部品と第二の出力部品を結合させること、ここで第二の一時的液相ボンドは導電性及び熱伝導性であり、第一の一時的液相ボンド及び第二の一時的液相ボンドは、第一の一時的液相ボンドと第二の一時的液相ボンドの一方が加熱され、第一の一時的液相ボンドと第二の一時的液相ボンドのもう一方が形成されるように順次に形成される、
を含む方法。
[14]
母材系の高温材料の第一の層と母材系の高温材料の第二の層の間に層状プレフォームを配置することをさらに含み、この層状プレフォームが母材系の高温材料の第一の層と母材系の高温材料の第二の層の間に配置された高温材料の第三の層を含む、項目13記載の方法。
[15]
母材系の高温材料の第一の層と母材系の高温材料の第二の層の間に1つの合金プレフォームを配置することをさらに含み、この1つの合金プレフォームが低温材料を含む、項目2記載の方法。
[16]
母材系の高温材料の第一の層と母材系の高温材料の第二の層の間にペーストを配置することをさらに含み、このペーストが低温材料を含む、項目13記載の方法。
[17]
母材系の高温材料の第一の層及び/又は母材系の高温材料の第二の層に母材系の低温材料の層をコートすることをさらに含む、項目13記載の方法。
[18]
第一の出力部品が電気的相互接続、半導体デバイス、絶縁性基板、又はベースプレートである、項目13記載の方法。
[19]
電気自動車に用いるための多部品出力構造体であって、
第一の金属層及び第二の金属層を含む絶縁性基板、ここでこの絶縁性基板は第一の金属層を第二の金属層から電気的に絶縁している、
導電性かつ熱伝導性である第一の一時的液相ボンドにより絶縁性基板の第一の金属層に結合している半導体ダイ、
導電性かつ熱伝導性である第二の一時的液相ボンドにより絶縁性基板の第二の金属層に結合しているベースプレート、及び
導電性かつ熱伝導性である第三の一時的液相ボンドによりベースプレートに結合しているサーマルデバイス、ここでこのサーマルデバイスはその内部に熱流体を有する密閉通路を含む、
を含み、この多部品出力構造体は約−40℃〜約200℃の温度で作動可能であり、電気インバーター又はDC−DCコンバーターである多部品出力構造体。
[20]
第一の一時的液相ボンド、第二の一時的液相ボンド、及び第三の一時的液相ボンドの各々が合金を含み、この合金がNi、Cu、Ag、Au、In又はSnを含む、項目19記載の多部品出力構造体。
Claims (17)
- 多部品出力構造体を形成する方法であって、
半導体ダイ、第一の金属層と第二の金属層を有する絶縁性基板、液体冷却用の密閉された通路を有するサーマルデバイス、及び母材系を準備すること、ここでこの母材系は比較的融点の低い低温材料と比較的融点の高い高温材料を含み、この比較的低い融点は比較的高い融点よりも低い、
導電性及び熱伝導性である第一の一時的液相ボンドにより半導体ダイと絶縁性基板の第一の金属層を結合させること、
絶縁性基板の第二の金属層を母材系の高温材料の第一の層でコートすること、
サーマルデバイスの表面を母材系の高温材料の第二の層でコートすること、
絶縁性基板の第二の金属層とサーマルデバイスの間に母材系を固定すること、
母材系を比較的低い融点よりも高く、比較的高い融点よりも低い温度に加熱して低温材料を液化させること、
母材系を拡散活性化温度に加熱して、液化した低温材料を高温材料中に拡散させること、及び
母材系を最大温度に加熱して母材系を固化させかつ導電性及び熱伝導性である第二の一時的液相ボンドを形成すること
を含む方法。 - 母材系の高温材料の第一の層及び母材系の高温材料の第二の層が電気メッキ、無電解メッキ、又はスパッタ蒸着により形成される、請求項1記載の方法。
- 母材系の高温材料の第一の層と母材系の高温材料の第二の層の間に層状プレフォームを配置することをさらに含み、この層状プレフォームが母材系の高温材料の第一の層と母材系の高温材料の第二の層の間に配置された高温材料の第三の層を含む、請求項1記載の方法。
- 母材系の高温材料の第一の層と母材系の高温材料の第二の層の間に1つの合金プレフォームを配置することをさらに含み、この1つの合金プレフォームが低温材料を含む、請求項1記載の方法。
- 母材系の高温材料の第一の層と母材系の高温材料の第二の層の間にペーストを配置することをさらに含み、このペーストが低温材料を含む、請求項1記載の方法。
- 前記ペーストが高温材料を含む、請求項5記載の方法。
- 母材系の高温材料の第一の層及び/又は母材系の高温材料の第二の層に母材系の低温材料の層をコートすることをさらに含む、請求項1記載の方法。
- 前記サーマルデバイスがアルミニウムより形成されている、請求項1記載の方法。
- 前記多部品出力構造体が約−40℃〜約200℃の作動温度で作動可能である、請求項1記載の方法。
- 前記高温材料がAu、Ag、Ni、又はCuを含み、前記低温材料がSn又はInを含む、請求項1記載の方法。
- 前記第二の一時的液相ボンドが比較的低い融点よりも高い融点を有する、請求項1記載の方法。
- 約−40℃〜約200℃の作動温度を有する多部品出力構造体を形成する方法であって、
比較的融点の低い低温材料と比較的融点の高い高温材料を含む母材系を準備すること、ここでこの比較的低い融点は比較的高い融点よりも低い、
多部品出力構造体を構成する第一の出力部品の第一の表面を母材系の高温材料の第一の層でコートすること、
サーマルデバイスの第二の表面を母材系の高温材料の第二の層でコートすること、ここでこの母材系の高温材料の第一の層及び母材系の高温材料の第二の層は、母材系を構成する前に電気メッキ、無電解メッキ、又はスパッタ蒸着により形成されている、
サーマルデバイスと第一の出力部品の間に母材系を固定すること、ここでサーマルデバイスは液体冷却用の密閉された通路を有する、
母材系を比較的低い融点よりも高く、比較的高い融点よりも低い温度に加熱して低温材料を液化させること、
母材系を拡散活性化温度に加熱して、液化した低温材料を高温材料中に拡散させること、及び
母材系を最大温度に加熱して母材系を固化させかつ導電性及び熱伝導性である第一の一時的液相ボンドを形成すること、
第二の一時的液相ボンドを形成して第一の出力部品と第二の出力部品を結合させること、ここで第二の一時的液相ボンドは導電性及び熱伝導性であり、第一の一時的液相ボンド及び第二の一時的液相ボンドは、第一の一時的液相ボンドと第二の一時的液相ボンドの一方が加熱され、第一の一時的液相ボンドと第二の一時的液相ボンドのもう一方が形成されるように順次に形成される、
を含む方法。 - 母材系の高温材料の第一の層と母材系の高温材料の第二の層の間に層状プレフォームを配置することをさらに含み、この層状プレフォームが母材系の高温材料の第一の層と母材系の高温材料の第二の層の間に配置された高温材料の第三の層を含む、請求項12記載の方法。
- 母材系の高温材料の第一の層と母材系の高温材料の第二の層の間に1つの合金プレフォームを配置することをさらに含み、この1つの合金プレフォームが低温材料を含む、請求項12記載の方法。
- 母材系の高温材料の第一の層と母材系の高温材料の第二の層の間にペーストを配置することをさらに含み、このペーストが低温材料を含む、請求項12記載の方法。
- 母材系の高温材料の第一の層及び/又は母材系の高温材料の第二の層に母材系の低温材料の層をコートすることをさらに含む、請求項12記載の方法。
- 第一の出力部品が電気的相互接続、半導体デバイス、絶縁性基板、又はベースプレートである、請求項12記載の方法。
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2011
- 2011-06-01 US US13/150,645 patent/US8431445B2/en active Active
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US20120306105A1 (en) | 2012-12-06 |
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