JP7414073B2 - 半導体モジュール - Google Patents
半導体モジュール Download PDFInfo
- Publication number
- JP7414073B2 JP7414073B2 JP2021552285A JP2021552285A JP7414073B2 JP 7414073 B2 JP7414073 B2 JP 7414073B2 JP 2021552285 A JP2021552285 A JP 2021552285A JP 2021552285 A JP2021552285 A JP 2021552285A JP 7414073 B2 JP7414073 B2 JP 7414073B2
- Authority
- JP
- Japan
- Prior art keywords
- protrusion
- semiconductor element
- gate runner
- joint
- semiconductor module
- 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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- 239000004065 semiconductor Substances 0.000 title claims description 189
- 229910052751 metal Inorganic materials 0.000 claims description 58
- 239000002184 metal Substances 0.000 claims description 58
- 239000000463 material Substances 0.000 claims description 39
- 238000007747 plating Methods 0.000 claims description 37
- 230000002093 peripheral effect Effects 0.000 claims description 4
- 239000000758 substrate Substances 0.000 description 18
- 229910000679 solder Inorganic materials 0.000 description 16
- 230000004048 modification Effects 0.000 description 12
- 238000012986 modification Methods 0.000 description 12
- 230000000694 effects Effects 0.000 description 6
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 4
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 4
- 239000000956 alloy Substances 0.000 description 4
- 229910052802 copper Inorganic materials 0.000 description 4
- 239000010949 copper Substances 0.000 description 4
- 229920005989 resin Polymers 0.000 description 4
- 239000011347 resin Substances 0.000 description 4
- 229910052782 aluminium Inorganic materials 0.000 description 3
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 3
- 238000007789 sealing Methods 0.000 description 3
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 2
- 229910010293 ceramic material Inorganic materials 0.000 description 2
- 239000012141 concentrate Substances 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000003822 epoxy resin Substances 0.000 description 2
- 230000005669 field effect Effects 0.000 description 2
- 229910044991 metal oxide Inorganic materials 0.000 description 2
- 150000004706 metal oxides Chemical class 0.000 description 2
- 229910052759 nickel Inorganic materials 0.000 description 2
- 229920000647 polyepoxide Polymers 0.000 description 2
- 230000005855 radiation Effects 0.000 description 2
- 229910052710 silicon Inorganic materials 0.000 description 2
- 239000010703 silicon Substances 0.000 description 2
- HBMJWWWQQXIZIP-UHFFFAOYSA-N silicon carbide Chemical compound [Si+]#[C-] HBMJWWWQQXIZIP-UHFFFAOYSA-N 0.000 description 2
- 229910018072 Al 2 O 3 Inorganic materials 0.000 description 1
- 229910000838 Al alloy Inorganic materials 0.000 description 1
- PIGFYZPCRLYGLF-UHFFFAOYSA-N Aluminum nitride Chemical compound [Al]#N PIGFYZPCRLYGLF-UHFFFAOYSA-N 0.000 description 1
- 229910000881 Cu alloy Inorganic materials 0.000 description 1
- 239000004593 Epoxy Substances 0.000 description 1
- 229910000640 Fe alloy Inorganic materials 0.000 description 1
- 239000004642 Polyimide Substances 0.000 description 1
- 229910052581 Si3N4 Inorganic materials 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 238000005219 brazing Methods 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 230000008602 contraction Effects 0.000 description 1
- 239000011889 copper foil Substances 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 239000000945 filler Substances 0.000 description 1
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- 238000010030 laminating Methods 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 229910021420 polycrystalline silicon Inorganic materials 0.000 description 1
- 229920001721 polyimide Polymers 0.000 description 1
- 229920005591 polysilicon Polymers 0.000 description 1
- 229920001296 polysiloxane Polymers 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 229910010271 silicon carbide Inorganic materials 0.000 description 1
- HQVNEWCFYHHQES-UHFFFAOYSA-N silicon nitride Chemical compound N12[Si]34N5[Si]62N3[Si]51N64 HQVNEWCFYHHQES-UHFFFAOYSA-N 0.000 description 1
- 229920003002 synthetic resin Polymers 0.000 description 1
- 239000000057 synthetic resin Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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Description
上記実施の形態に記載の半導体モジュールは、上面に所定方向へ延びるようにゲートランナが形成された半導体素子と、前記半導体素子の上面に配置された金属配線板と、を備え、前記金属配線板は、前記半導体素子の上面に第1接合材を介して接合された第1接合部を有し、前記第1接合部は、前記半導体素子に向けて突出する複数の第1突起部を有し、前記第1突起部は、平面視で前記ゲートランナから所定距離離れる位置に設けられている。
Claims (26)
- 上面に所定方向へ延びるようにゲートランナが形成された半導体素子と、
前記半導体素子の上面に配置された金属配線板と、を備え、
前記金属配線板は、前記半導体素子の上面に第1接合材を介して接合された第1接合部を有し、
前記第1接合部は、前記半導体素子に向けて突出する複数の第1突起部を有し、
前記第1突起部は、平面視で前記ゲートランナから所定距離離れる位置に設けられ、
複数の前記第1突起部の面積は、前記第1接合部の面積の0.5%以上、25%以下で ある半導体モジュール。 - 上面に所定方向へ延びるようにゲートランナが形成された半導体素子と、
前記半導体素子の上面に配置された金属配線板と、を備え、
前記金属配線板は、前記半導体素子の上面に第1接合材を介して接合された第1接合部 を有し、
前記第1接合部は、前記半導体素子に向けて突出する複数の第1突起部を有し、
前記第1突起部は、平面視で前記ゲートランナから0.4mm以上離れている半導体モ ジュール。 - 上面に所定方向へ延びるようにゲートランナが形成された半導体素子と、
前記半導体素子の上面に配置された金属配線板と、を備え、
前記金属配線板は、前記半導体素子の上面に第1接合材を介して接合された第1接合部 を有し、
前記第1接合部は、前記半導体素子に向けて突出する複数の第1突起部を有し、
前記第1突起部は、平面視で前記ゲートランナから所定距離離れる位置に設けられ、
前記第1突起部は、前記第1接合部の外縁部から0.4mm以上2.0mm以下内側の 範囲内に設けられている半導体モジュール。 - 複数の前記第1突起部の面積は、前記第1接合部の面積の0.5%以上、25%以下である請求項2又は請求項3のいずれか一項に記載の半導体モジュール。
- 前記第1突起部は、前記第1接合部の外縁部から所定距離以上離れる位置に設けられている請求項1から請求項4のいずれか一項に記載の半導体モジュール。
- 前記第1突起部は、平面視で前記ゲートランナに対向する面に曲面を有する請求項1から請求項5のいずれか一項に記載の半導体モジュール。
- 前記第1突起部は、断面視で先端に曲面を有する請求項1から請求項6のいずれか一項に記載の半導体モ
ジュール。 - 前記第1突起部は、円柱、円錐台、又は半球形状である請求項1から請求項7のいずれか一項に記載の半導体モジュール。
- 複数の前記第1突起部は、平面視で前記第1接合部の外周縁に沿って、且つ、前記ゲートランナを挟むように配置されている請求項1から請求項8のいずれか一項に記載の半導体モジュール。
- 複数の前記第1突起部は、平面視で前記ゲートランナの延伸方向に沿って並んで配置されている請求項1から請求項9のいずれか一項に記載の半導体モジュール。
- 前記第1突起部は、平面視で前記ゲートランナから0.4mm以上離れている請求項1又は請求項3のいずれか一項に記載の半導体モジュール。
- 前記第1突起部は、前記第1接合部の外縁部から0.4mm以上2.0mm以下内側の範囲内に設けられている請求項1又は請求項2のいずれか一項に記載の半導体モジュール。
- 前記第1突起部の突出高さは、50μm以上300μm以下である請求項1から請求項12のいずれか一項に記載の半導体モジュール。
- 前記第1突起部は、円柱形状又は円錐台形状を有し、外径が0.4mm以上1.5mm以下である請求項1から請求項13のいずれか一項に記載の半導体モジュール。
- 前記半導体素子は、
上面に設けられた上面電極と、
前記上面電極の上面に設けられためっき層と、を有し、
前記ゲートランナは、前記上面電極の上面において前記めっき層を貫通するように形成され、
前記第1突起部は、前記ゲートランナ、前記上面電極、及び前記めっき層が集まる境界部から所定距離離れている請求項1から請求項14のいずれか一項に記載の半導体モジュール。 - 前記半導体素子は、矩形状であり、一辺の中央にゲートパッドを備え、
前記ゲートランナは、前記半導体素子の上面において、前記ゲートパッドから前記一辺と前記一辺に対向する他辺との間まで前記一辺と垂直な方向へ延び、
前記ゲートランナを中心として線対称に前記第1突起部が配置されている請求項15に記載の半導体モジュール。 - 前記ゲートランナは、前記半導体素子の上面を複数に分断するように延び、前記ゲートランナによって区画された前記半導体素子の各上面にそれぞれ複数の前記第1突起部が配置されている請求項15又は請求項16のいずれか一項に記載の半導体モジュール。
- 前記ゲートランナは、前記半導体素子の上面に格子状に形成されており、
格子状の前記ゲートランナによって区画された前記半導体素子の各上面にそれぞれ1つずつの前記第1突起部が配置され、前記区画された前記半導体素子の各上面において、前記第1突起部の面積は、前記第1接合部の面積の0.5%以上、25%以下である請求項17に記載の半導体モジュール。 - 前記半導体素子は、矩形状であり、一辺の中央にゲートパッドを備え、
前記ゲートランナは、前記半導体素子の上面において、前記ゲートパッドから前記一辺と垂直な方向へ延び、前記一辺と前記一辺に対向する他辺との中間で止まり、そこから前記一辺と平行な方向に延びる形で、全体としてT字状に形成されており、
T字状の前記ゲートランナによって区画された前記半導体素子の上面の前記一辺側の2つの区画にそれぞれ1つずつの前記第1突起部が配置され、前記他辺側の1つの区画に前記第1突起部が複数配置されている請求項17に記載の半導体モジュール。 - 絶縁板の上面に第1回路板及び第2回路板が配置された積層基板を更に備え、
前記半導体素子は、前記第1回路板上に配置され、
前記金属配線板は、前記第2回路板上に第2接合材を介して接合された第2接合部と、前記第1接合部と前記第2接合部とを連結する連結部と、を有し、
前記第2接合部は、前記第2回路板に向けて突出する少なくとも1つの第2突起部を有する請求項1から請求項19のいずれか一項に記載の半導体モジュール。 - 前記第1接合部、前記第2接合部、及び前記連結部は、平面視において一列に並んで配置されている請求項20に記載の半導体モジュール。
- 前記第1接合部及び前記第2接合部は、平面視において前記連結部を挟んで斜めに対向するように配置されている請求項20に記載の半導体モジュール。
- 前記第1接合部の端部から前記連結部に向かって屈曲し、前記第1接合部と前記連結部とを連結する第1屈曲部を更に有し、
前記第1屈曲部の幅は、前記第1接合部の幅より小さく、
前記第1突起部は、少なくとも一部が第1屈曲部に連なる端部より内側に配置され、少なくとも一部が第1屈曲部に連なる端部より外側に配置されている請求項20から請求項22のいずれか一項に記載の半導体モジュール。 - 前記第2接合部の端部から前記連結部に向かって屈曲し、前記第2接合部と前記連結部とを連結する第2屈曲部と、を更に有し、
前記第2屈曲部の幅は、前記第2接合部の幅より小さく、
前記第2突起部は、少なくとも一部が第2屈曲部に連なる端部より内側に配置され、少なくとも一部が第2屈曲部に連なる端部より外側に配置されている請求項23に記載の半導体モジュール。 - 前記第1接合部は、前記第1屈曲部に連なる外縁の一部が切欠かれた切欠き部を有する請求項23又は請求項24のいずれか一項に記載の半導体モジュール。
- 前記半導体素子は、
上面に設けられた上面電極と、
前記上面電極の上面に設けられためっき層と、
前記めっき層の周囲に設けられたガードリングと、を有し、
前記第1突起部は、平面視で前記ガードリングから所定距離離れている請求項1から請求項25のいずれか一項に記載の半導体モジュール。
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