JPWO2018020640A1 - 半導体装置 - Google Patents
半導体装置 Download PDFInfo
- Publication number
- JPWO2018020640A1 JPWO2018020640A1 JP2018530284A JP2018530284A JPWO2018020640A1 JP WO2018020640 A1 JPWO2018020640 A1 JP WO2018020640A1 JP 2018530284 A JP2018530284 A JP 2018530284A JP 2018530284 A JP2018530284 A JP 2018530284A JP WO2018020640 A1 JPWO2018020640 A1 JP WO2018020640A1
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- Prior art keywords
- solder
- semiconductor device
- intermediate plate
- semiconductor chip
- electrode substrate
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Links
- 239000004065 semiconductor Substances 0.000 title claims abstract description 131
- 229910000679 solder Inorganic materials 0.000 claims abstract description 93
- 239000000758 substrate Substances 0.000 claims abstract description 47
- 239000000463 material Substances 0.000 claims description 21
- 238000007747 plating Methods 0.000 claims description 9
- 229910052782 aluminium Inorganic materials 0.000 claims description 8
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical group [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 8
- 239000010949 copper Substances 0.000 claims description 8
- ZOKXTWBITQBERF-UHFFFAOYSA-N Molybdenum Chemical group [Mo] ZOKXTWBITQBERF-UHFFFAOYSA-N 0.000 claims description 5
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical group [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 claims description 5
- 229910052750 molybdenum Inorganic materials 0.000 claims description 5
- 239000011733 molybdenum Substances 0.000 claims description 5
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical group [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 4
- 150000001875 compounds Chemical class 0.000 claims description 4
- 229910052802 copper Inorganic materials 0.000 claims description 4
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 2
- 229910052799 carbon Inorganic materials 0.000 claims description 2
- 229910052759 nickel Inorganic materials 0.000 claims description 2
- 238000001816 cooling Methods 0.000 description 10
- 238000004080 punching Methods 0.000 description 6
- 238000004519 manufacturing process Methods 0.000 description 5
- 238000000034 method Methods 0.000 description 4
- 238000005096 rolling process Methods 0.000 description 4
- 239000003566 sealing material Substances 0.000 description 4
- HBMJWWWQQXIZIP-UHFFFAOYSA-N silicon carbide Chemical compound [Si+]#[C-] HBMJWWWQQXIZIP-UHFFFAOYSA-N 0.000 description 4
- 229910010271 silicon carbide Inorganic materials 0.000 description 4
- 238000005266 casting Methods 0.000 description 3
- 239000004020 conductor Substances 0.000 description 3
- 238000010438 heat treatment Methods 0.000 description 3
- 239000011347 resin Substances 0.000 description 3
- 229920005989 resin Polymers 0.000 description 3
- 229910052710 silicon Inorganic materials 0.000 description 3
- 239000010703 silicon Substances 0.000 description 3
- 239000011800 void material Substances 0.000 description 3
- 230000015556 catabolic process Effects 0.000 description 2
- 239000000498 cooling water Substances 0.000 description 2
- 230000006866 deterioration Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000008393 encapsulating agent Substances 0.000 description 2
- 229910000765 intermetallic Inorganic materials 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 238000007740 vapor deposition Methods 0.000 description 2
- 229910017944 Ag—Cu Inorganic materials 0.000 description 1
- 229910002601 GaN Inorganic materials 0.000 description 1
- JMASRVWKEDWRBT-UHFFFAOYSA-N Gallium nitride Chemical compound [Ga]#N JMASRVWKEDWRBT-UHFFFAOYSA-N 0.000 description 1
- HBBGRARXTFLTSG-UHFFFAOYSA-N Lithium ion Chemical compound [Li+] HBBGRARXTFLTSG-UHFFFAOYSA-N 0.000 description 1
- 229910020836 Sn-Ag Inorganic materials 0.000 description 1
- 229910020888 Sn-Cu Inorganic materials 0.000 description 1
- 229910020988 Sn—Ag Inorganic materials 0.000 description 1
- 229910019204 Sn—Cu Inorganic materials 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000010432 diamond Substances 0.000 description 1
- 229910003460 diamond Inorganic materials 0.000 description 1
- 238000009713 electroplating Methods 0.000 description 1
- 238000005304 joining Methods 0.000 description 1
- 229910001416 lithium ion Inorganic materials 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 238000004382 potting Methods 0.000 description 1
- 238000010992 reflux Methods 0.000 description 1
- 239000007790 solid phase Substances 0.000 description 1
- 238000004544 sputter deposition Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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Abstract
Description
図1は、実施の形態1に係る半導体装置を示す断面図である。本実施の形態に係る半導体装置は、例えば自動車動力用モータを駆動する電源に用いられる。電極基板1の上面に第1のはんだ2を介して半導体チップ3が接合されている。半導体チップ3の上面に第2のはんだ4を介してリードフレーム5が接合されている。
図3は、実施の形態2に係る中間板を示す平面図である。図4は、図3のI−IIに沿った断面図である。本実施の形態は、中間板6の構成以外は実施の形態1と同様である。
図5は、実施の形態3に係る半導体装置を示す断面図である。電極基板1と半導体チップ3の端部との間に、アルミワイヤなどにより複数のバンプ10が設けられている。バンプによって半導体チップ3と電極基板1との距離を確保することができるため、半導体チップ3が傾いて実装されて第1のはんだ2が部分的に薄くなるのを防ぐことができる。
Claims (19)
- 電極基板と、
前記電極基板の上面に第1のはんだを介して接合された半導体チップと、
前記半導体チップの上面に第2のはんだを介して接合されたリードフレームと、
前記電極基板と前記半導体チップとの間において前記第1のはんだ中に設けられた中間板とを備え、
前記中間板の耐力は、半導体装置の使用温度範囲の全てにおいて前記電極基板及び前記第1のはんだの耐力よりも大きいことを特徴とする半導体装置。 - 前記使用温度範囲は−55℃から200℃であることを特徴とする請求項1に記載の半導体装置。
- 前記中間板は、平面視において前記半導体チップ及び前記第1のはんだの内側に配置されていることを特徴とする請求項1又は2に記載の半導体装置。
- 前記半導体チップの端部と前記中間板の端部との間隔は、前記第1のはんだの厚みより大きいことを特徴とする請求項3に記載の半導体装置。
- 前記第2のはんだは、平面視において前記中間板の内側に配置されていることを特徴とする請求項1〜4の何れか1項に記載の半導体装置。
- 前記中間板の表面を覆い、前記中間板よりも前記第1のはんだに対する濡れ性が高いめっき膜を更に備えることを特徴とする請求項1〜5の何れか1項に記載の半導体装置。
- 前記めっき膜の主な材料はニッケルであることを特徴とする請求項6に記載の半導体装置。
- 前記中間板に複数の貫通孔が設けられていることを特徴とする請求項1〜7の何れか1項に記載の半導体装置。
- 前記中間板に複数の貫通孔が設けられ、
前記めっき膜は前記複数の貫通孔の側壁にも形成されていることを特徴とする請求項6又は7に記載の半導体装置。 - 前記貫通孔の大きさは500μmΦ以下であることを特徴とする請求項8又は9に記載の半導体装置。
- 前記電極基板と前記半導体チップとの間に設けられた複数のバンプを更に備え、
前記中間板は、平面視において前記複数のバンプの内側に配置されていることを特徴とする請求項1〜10の何れか1項に記載の半導体装置。 - 前記中間板の厚みは前記複数のバンプの高さより薄いことを特徴とする請求項11に記載の半導体装置。
- 前記半導体チップの厚みは100μm以下であることを特徴とする請求項1〜12の何れか1項に記載の半導体装置。
- 前記電極基板の主な材料はアルミであることを特徴とする請求項1〜13何れか1項に記載の半導体装置。
- 前記中間板の主な材料は銅であることを特徴とする請求項1〜14の何れか1項に記載の半導体装置。
- 前記中間板の主な材料はモリブデンであることを特徴とする請求項1〜14の何れか1項に記載の半導体装置。
- 前記半導体チップは化合物半導体を用いていることを特徴とする請求項1〜16の何れか1項に記載の半導体装置。
- 前記化合物半導体の主な材料はカーボンを有することを特徴とする請求項17に記載の半導体装置。
- 自動車動力用モータを駆動する電源に用いられることを特徴とする請求項1〜18の何れか1項に記載の半導体装置。
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