JP7478899B2 - 金属セラミック基板の製造方法 - Google Patents
金属セラミック基板の製造方法 Download PDFInfo
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- JP7478899B2 JP7478899B2 JP2023504253A JP2023504253A JP7478899B2 JP 7478899 B2 JP7478899 B2 JP 7478899B2 JP 2023504253 A JP2023504253 A JP 2023504253A JP 2023504253 A JP2023504253 A JP 2023504253A JP 7478899 B2 JP7478899 B2 JP 7478899B2
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- 229910052751 metal Inorganic materials 0.000 title claims description 226
- 239000002184 metal Substances 0.000 title claims description 226
- 239000000919 ceramic Substances 0.000 title claims description 156
- 239000000758 substrate Substances 0.000 title claims description 66
- 238000004519 manufacturing process Methods 0.000 title claims description 25
- 238000000034 method Methods 0.000 claims description 88
- 238000005530 etching Methods 0.000 claims description 30
- 238000003754 machining Methods 0.000 claims description 29
- 238000003801 milling Methods 0.000 claims description 14
- 238000001513 hot isostatic pressing Methods 0.000 claims description 7
- 238000004049 embossing Methods 0.000 claims description 6
- 238000005476 soldering Methods 0.000 claims description 6
- 238000005304 joining Methods 0.000 claims description 4
- 238000004080 punching Methods 0.000 claims description 3
- 239000010410 layer Substances 0.000 description 190
- 238000001465 metallisation Methods 0.000 description 26
- 238000002955 isolation Methods 0.000 description 14
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 12
- 229910052802 copper Inorganic materials 0.000 description 12
- 239000010949 copper Substances 0.000 description 12
- 238000000059 patterning Methods 0.000 description 9
- 239000011888 foil Substances 0.000 description 8
- 239000004020 conductor Substances 0.000 description 7
- MCMNRKCIXSYSNV-UHFFFAOYSA-N Zirconium dioxide Chemical compound O=[Zr]=O MCMNRKCIXSYSNV-UHFFFAOYSA-N 0.000 description 6
- 230000035939 shock Effects 0.000 description 6
- 229910000679 solder Inorganic materials 0.000 description 6
- 238000005452 bending Methods 0.000 description 5
- 238000002844 melting Methods 0.000 description 5
- 230000008018 melting Effects 0.000 description 5
- 229910052782 aluminium Inorganic materials 0.000 description 4
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 4
- 230000015572 biosynthetic process Effects 0.000 description 4
- 229910052593 corundum Inorganic materials 0.000 description 4
- 230000017525 heat dissipation Effects 0.000 description 4
- 239000000463 material Substances 0.000 description 4
- 229910001845 yogo sapphire Inorganic materials 0.000 description 4
- 238000001816 cooling Methods 0.000 description 3
- 239000011889 copper foil Substances 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 238000000926 separation method Methods 0.000 description 3
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 2
- 239000011248 coating agent Substances 0.000 description 2
- 238000000576 coating method Methods 0.000 description 2
- 239000002131 composite material Substances 0.000 description 2
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 2
- 229910052737 gold Inorganic materials 0.000 description 2
- 239000010931 gold Substances 0.000 description 2
- 229910052735 hafnium Inorganic materials 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 238000009413 insulation Methods 0.000 description 2
- 229910052758 niobium Inorganic materials 0.000 description 2
- 239000010955 niobium Substances 0.000 description 2
- 238000002360 preparation method Methods 0.000 description 2
- 229910052709 silver Inorganic materials 0.000 description 2
- 239000004332 silver Substances 0.000 description 2
- 230000000930 thermomechanical effect Effects 0.000 description 2
- 229910016570 AlCu Inorganic materials 0.000 description 1
- 229910017083 AlN Inorganic materials 0.000 description 1
- 102100033565 Biogenesis of lysosome-related organelles complex 1 subunit 6 Human genes 0.000 description 1
- QPLDLSVMHZLSFG-UHFFFAOYSA-N Copper oxide Chemical compound [Cu]=O QPLDLSVMHZLSFG-UHFFFAOYSA-N 0.000 description 1
- 239000005751 Copper oxide Substances 0.000 description 1
- 229910018565 CuAl Inorganic materials 0.000 description 1
- 229910016525 CuMo Inorganic materials 0.000 description 1
- 201000005400 Hermansky-Pudlak syndrome 9 Diseases 0.000 description 1
- 101000872147 Homo sapiens Biogenesis of lysosome-related organelles complex 1 subunit 6 Proteins 0.000 description 1
- ZOKXTWBITQBERF-UHFFFAOYSA-N Molybdenum Chemical compound [Mo] ZOKXTWBITQBERF-UHFFFAOYSA-N 0.000 description 1
- 229910052581 Si3N4 Inorganic materials 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 230000003139 buffering effect Effects 0.000 description 1
- 229910010293 ceramic material Inorganic materials 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 229910000431 copper oxide Inorganic materials 0.000 description 1
- PMHQVHHXPFUNSP-UHFFFAOYSA-M copper(1+);methylsulfanylmethane;bromide Chemical compound Br[Cu].CSC PMHQVHHXPFUNSP-UHFFFAOYSA-M 0.000 description 1
- RKTYLMNFRDHKIL-UHFFFAOYSA-N copper;5,10,15,20-tetraphenylporphyrin-22,24-diide Chemical compound [Cu+2].C1=CC(C(=C2C=CC([N-]2)=C(C=2C=CC=CC=2)C=2C=CC(N=2)=C(C=2C=CC=CC=2)C2=CC=C3[N-]2)C=2C=CC=CC=2)=NC1=C3C1=CC=CC=C1 RKTYLMNFRDHKIL-UHFFFAOYSA-N 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005553 drilling Methods 0.000 description 1
- -1 e.g. Inorganic materials 0.000 description 1
- 230000005496 eutectics Effects 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- MSNOMDLPLDYDME-UHFFFAOYSA-N gold nickel Chemical compound [Ni].[Au] MSNOMDLPLDYDME-UHFFFAOYSA-N 0.000 description 1
- VBJZVLUMGGDVMO-UHFFFAOYSA-N hafnium atom Chemical compound [Hf] VBJZVLUMGGDVMO-UHFFFAOYSA-N 0.000 description 1
- 239000012212 insulator Substances 0.000 description 1
- 239000011229 interlayer Substances 0.000 description 1
- 230000004807 localization Effects 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- 230000001404 mediated effect Effects 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 229910052750 molybdenum Inorganic materials 0.000 description 1
- 239000011733 molybdenum Substances 0.000 description 1
- 229910052759 nickel Inorganic materials 0.000 description 1
- GUCVJGMIXFAOAE-UHFFFAOYSA-N niobium atom Chemical compound [Nb] GUCVJGMIXFAOAE-UHFFFAOYSA-N 0.000 description 1
- 229910000510 noble metal Inorganic materials 0.000 description 1
- 230000001590 oxidative effect Effects 0.000 description 1
- RVTZCBVAJQQJTK-UHFFFAOYSA-N oxygen(2-);zirconium(4+) Chemical compound [O-2].[O-2].[Zr+4] RVTZCBVAJQQJTK-UHFFFAOYSA-N 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 229910052719 titanium Inorganic materials 0.000 description 1
- 229910052726 zirconium Inorganic materials 0.000 description 1
- 229910001928 zirconium oxide Inorganic materials 0.000 description 1
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- B23K26/00—Working by laser beam, e.g. welding, cutting or boring
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- B23K1/00—Soldering, e.g. brazing, or unsoldering
- B23K1/19—Soldering, e.g. brazing, or unsoldering taking account of the properties of the materials to be soldered
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- B23K20/00—Non-electric welding by applying impact or other pressure, with or without the application of heat, e.g. cladding or plating
- B23K20/02—Non-electric welding by applying impact or other pressure, with or without the application of heat, e.g. cladding or plating by means of a press ; Diffusion bonding
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- B23K20/00—Non-electric welding by applying impact or other pressure, with or without the application of heat, e.g. cladding or plating
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Description
セラミック素子および少なくとも1つの金属層を提供する工程であって、セラミック素子および少なくとも1つの金属層は主延長面に沿って延在する、提供する工程と、
セラミック素子を少なくとも1つの金属層に接合することで、特に直接金属接合法、熱間等方圧加圧法(ホットアイソスタティックプレス、熱間静水圧プレス)、および/または半田付け法、によって金属セラミック基板を形成する工程と、および
機械工具(メカニカルツール、機械的工具)および/またはレーザ光によって少なくとも1つの金属層を機械加工することで、特に製造された金属セラミック基板上で、少なくとも部分的に、主延長面に対して平行には走らない少なくとも1つの金属層の側面の幾何学的形状(ジオメトリ)を規定(定義)する工程と、
を備えている。
さらに、少なくとも1つの金属層に加えて、少なくとも1つの金属層とは反対側のセラミック素子の面(側)に、裏面メタライゼーションが提供されることが特に好ましい。好ましくは、裏面メタライゼーションは、そうでなければ異なる熱膨張係数同士のために予想される金属セラミック基板の撓みを打ち消すべく、提供される。また、過負荷時の緩衝材として、裏面メタライゼーションは十分な熱容量を確保するべく適切な厚みを持つことが好ましい。裏面メタライゼーションの比較的大きな厚みによる曲げに対抗するべく、少なくとも1つの金属層の厚みを裏面メタライゼーションの厚みに対して比較的に大きく設計することが、有利であることが判明している。ここでも、少なくとも1つの金属層の厚みの増大は、熱容量の増大のために特に有利であることが証明されている。これは、既に部品側で効果的な熱放散を引き起こす可能性があるからである。基本的に、少なくとも1つの金属層および/または裏面メタライゼーションを厚くすることも、熱容量を増加させるだけでなく、より良い冷却を可能にするとともに、同時に機械的安定性を増加させるので、有利であることが証明されている。これによって、例えば、底板を省略することができる。
均一な酸化銅層が形成されるように、銅箔を酸化させる工程と、
前記銅箔を前記セラミック層上に配置する工程と、
複合体を約1025~1083℃の間の、例えば約1071℃である、処理温度まで加熱する工程と、
室温まで冷却する工程と、
を備えている。
好ましくは、製造された状態において、少なくとも1つの金属層は、セラミック素子からの距離が増加するときに、少なくともいくつかの部分においてテーパが付くように意図されている。これは、特に熱放散に有利であることが証明されているので、電気部品を少なくとも1つの金属層のそれぞれの金属部分(セクション)の縁(エッジ)にできるだけ近く配置することができる。
セラミック素子、少なくとも1つの金属層、および少なくとも1つの追加金属層、を提供する工程であって、セラミック素子、少なくとも1つの金属層、および少なくとも1つの追加金属層、は主延長面に沿って延在する、提供する工程と、
少なくとも1つの金属層と少なくとも1つの追加金属層とを接合することで、プレコンポジットを形成する工程と、
セラミック素子をプレコンポジットに、特に直接金属接合法、熱間等方圧加圧法、および/または半田付け法、によって接合する工程と、および
少なくとも1つの金属層および少なくとも1つの追加金属層の、主延長面に対して平行には走らないプレコンポジットの側面の少なくとも一部の幾何学的形状を規定するべく、機械工具および/またはレーザ光によって少なくとも1つの金属層を機械加工するとともに、好ましくは接合前に、エッチングによって少なくとも1つの追加金属層を機械加工する工程と、
を備えている。上記の方法について説明したすべての特性および利点は、この方法に類推的に適用することができるだけでなく、その逆もまた同様である。
図8cは、少なくとも1つの金属層10の上面から、セラミック素子30に隣接するように実質的に垂直に延びる側面部16まで、主延長面HSEに関して斜めに延びる側面部16を示す。
10…金属層。
10′…追加金属層。
15…側面。
16…側面部。
18…アンダーカット。
20…裏面メタライゼーション。
40…機械工具。
50…凹部。
60…半田材料。
70…レジスト層。
HSE…主延長面。
S…積層方向。
Claims (12)
- 金属セラミック基板(1)を製造するための方法であって、前記方法は、
セラミック素子(30)および少なくとも1つの金属層(10)を提供する工程であって、前記セラミック素子(30)および少なくとも1つの前記金属層(10)は主延長面(HSE)に沿って延在する、前記セラミック素子(30)および少なくとも1つの前記金属層(10)を提供する工程と、
前記セラミック素子(30)を少なくとも1つの前記金属層(10)に接合することで、直接金属接合法と熱間等方圧加圧法と半田付け法とのうちの少なくとも1つによって前記金属セラミック基板(1)を形成する工程と、および
少なくとも1つの前記金属層(10)における個々の部分同士を分離するべく、機械工具(40)とレーザ光とのうちの少なくとも一方によって、少なくとも1つの前記金属層(10)を機械加工することで、少なくとも部分的に、前記主延長面(HSE)に対して平行には走っていない少なくとも1つの前記金属層(10)の側面(15)の幾何学的形状を規定する工程と、
を備えている、方法であって、
少なくとも1つの前記金属層(10)の2つの部分同士の間の凹部は、1よりも大きいアスペクト比を有しており、
前記アスペクト比は幅に対する深さの比率を規定しており、
前記側面(15)の前記幾何学的形状は、一方ではエッチング法と、他方では前記機械工具(40)と前記レーザ光とのうちの少なくとも1つを用いた前記機械加工と、の組み合わせによって規定されており、
前記機械加工は、前記セラミック素子(30)を少なくとも1つの前記金属層(10)に接合するよりも前に、前記機械工具(40)を用いることと前記レーザ光によることとのうちの少なくとも一方によって行われる、
方法。 - 少なくとも1つの前記金属層(10)は、前記主延長面(HSE)に対して垂直な厚さ(D1)を有しており、
前記厚さ(D1)は1mmよりも大きい、
請求項1に記載の方法。 - 前記厚さ(D1)は1.3mmよりも大きい、
請求項2に記載の方法。 - 前記厚さ(D1)は1.5mmと3mmとの間である、
請求項3に記載の方法。 - 前記機械加工は、少なくとも1つの金属層(10)の少なくとも2つの部分同士を接続するリブ(14)が実現されるように、行われる、
請求項1~4のいずれか1項に記載の方法。 - 前記リブ(14)は、接合後に、レーザ光とエッチングとフライス加工と火花放電と電気化学処理とのうちの少なくとも1つによって、少なくともいくつかの部分において除去される、
請求項5に記載の方法。 - 前記機械工具はフライス工具と、鋸刃と、パンチングまたはエンボス加工部品と、のうちの少なくとも1つを備えており、
前記機械工具の形状は、前記側面(15)の前記幾何学的形状を決定する、
請求項1~6のいずれか1項に記載の方法。 - 前記側面(15)の前記幾何学的形状は、ガイド工具によって決定される、
請求項1~7のいずれか1項に記載の方法。 - 製造された前記側面(15)は、斜めであるか、段差状であるか、セグメント化されているか、のうちの少なくとも1つである、
請求項1~8のいずれか1項に記載の方法。 - 製造された前記側面(15)は、曲げられているか、湾曲しているか、のうちの少なくとも1つである、
請求項1~9のいずれか1項に記載の方法。 - 少なくとも1つの前記金属層(10)は、複数の絶縁金属部分に分離され、
その後、前記絶縁金属部分の前記側面(15)の前記幾何学的形状が決定される、
請求項1~10のいずれか1項に記載の方法。 - 前記主延長面(HSE)に対して平行には走っていない前記側面(15)の少なくとも一部の前記幾何学的形状を規定するための、少なくとも1つの前記金属層(10)の前記機械加工の大部分は、前記レーザ光を用いて行われる、
請求項1~11のいずれか1項に記載の方法。
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PCT/EP2021/070217 WO2022018061A1 (de) | 2020-07-21 | 2021-07-20 | Verfahren zur herstellung eines metall-keramik-substrats und metall-keramik-substrat hergestellt mit einem solchen verfahren |
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