JP6515886B2 - 半導体モジュール - Google Patents
半導体モジュールInfo
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- JP6515886B2 JP6515886B2 JP2016135931A JP2016135931A JP6515886B2 JP 6515886 B2 JP6515886 B2 JP 6515886B2 JP 2016135931 A JP2016135931 A JP 2016135931A JP 2016135931 A JP2016135931 A JP 2016135931A JP 6515886 B2 JP6515886 B2 JP 6515886B2
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Description
これによれば、絶縁基板の板厚方向に対する半導体モジュールの大型化を抑制することができる。
これによれば、配線パターン又は半導体素子に接合されるバスバーを個別に設ける場合に比べて、半導体モジュールを簡素な構成にすることができる。
これによれば、バスバーの板厚方向の面を配線パターン又は半導体素子に突き合わせて接合を行う場合に比べて、配線パターン又は半導体素子に接合されるバスバーの面積を小さくすることができる。
これによれば、配線パターン又は半導体素子に接合されるバスバーの面積を更に小さくすることができる。
図1及び図2に示すように、半導体モジュール10は配線基板11と、配線基板11に実装された二つの半導体素子21,31を備える。配線基板11は、絶縁基板12を備える。配線基板11は、絶縁基板12の上面(板厚方向の一面)13に各半導体素子21,31に対応して配線パターン14,15を備える。半導体素子21,31は、例えば、Si(シリコン)や、SiC(炭化ケイ素)を構成材料とした素子である。
半導体モジュール10を製造する過程では、各半導体素子21,31の第2の電極23,33にクリーム半田を塗布し、クリーム半田上に端部59,60が位置するようにバスバー51の位置決めを行う。バスバー51は、ハウジング41に一体化されているため、ハウジング41の位置決めを行うことでバスバー51の位置決めが行われる。そして、半田71,72によってバスバー51の端部59,60と半導体素子21,31とを接合した後に、ハウジング41内に硬化前のポッティング樹脂81を充填し、樹脂封止を行う。樹脂封止を行う前には、半田71,72を目視することで、半導体素子21,31とバスバー51との接合状態を確認する。開口部46,47が半田71,72に対応する位置に設けられていることで、ハウジング41の開口部46,47を介して目視を行うことができる。したがって、ハウジング41は、半導体素子21,31とバスバー51との接合状態を目視するための目視用の開口部46,47を備える。
(1)バスバー51とハウジング41とが一体化されているため、バスバー51の接合を行うと、ハウジング41が配線基板11に取り付けられる。ハウジング41に目視用の開口部46,47を設けているため、ハウジング41を配線基板11に取り付けた後であっても、半田71,72を目視することで、半導体素子21,31とバスバー51との接合状態を確認することができる。
(8)バスバー51の突出部54はハウジング41外に突出している。インバータ装置など、パワーモジュールを構成するときにボンディングワイヤを用いずに、配線パターンやバスバーを用いて接続することにより、寄生素子を削減することができる。
○第1の半導体素子21は、第1の電極22がコレクタ電極で、第2の電極23がエミッタ電極としたが、フェイスダウンで配線基板11に対して表裏逆にしてもよい。
○実施形態において、端部59,60は配線パターン14,15に接合されてもよい。また、複数の端部59,60のうち一部の端部59,60が半導体素子21,31に接合され、残りの端部59,60が配線パターン14,15に接合されてもよい。
○実施形態において、突出部54は設けられていなくてもよい。すなわち、バスバー51は、半導体素子21,31同士や、配線パターン14,15同士、あるいは、半導体素子21,31と配線パターン14,15とを接続する部分のみを備える構成であってもよい。
○端部59,60は、立設部57,58と直角に交わるように屈曲されていてもよい。この場合、端部59,60の板厚方向の面が第2の電極23,33に接合される。
○延設部は、梁45を、絶縁基板12の板厚方向に貫通して設けられていてもよい。
○梁の数は、バスバーの数などに応じて適宜変更してもよい。
○延設部52の全体がハウジング41に埋設されていてもよい。
○枠体42の形状は、四角以外の多角形状や、円形などでもよい。
○半導体モジュール10は、ポッティング樹脂81を備えていなくてもよい。
○図8に示すように、第2の電極23,33は小さくてもよく、例えば、端部59,60のうち最も幅広な部分の幅よりも小さくてもよい。その場合、端部59,60を面取りすることで、先端面61,62の幅を端部59,60のうち最も幅広な部分の幅よりも小さくできるため、第2の電極23,33と接合が可能となる。
Claims (7)
- 絶縁基板に配線パターンを配した配線基板と、
前記配線パターンに接続された半導体素子と、
少なくとも1つの端部が前記配線パターン又は前記半導体素子に接合された板状のバスバーと、
前記配線パターン及び前記半導体素子を囲む枠体を有し、前記バスバーが一体化された樹脂製のハウジングと、を備え、
前記バスバーは、
前記端部から前記絶縁基板の板厚方向に立設した立設部と、
前記立設部に連続し、前記バスバーを前記板厚方向に交差する方向に屈曲させる屈曲部と、
前記屈曲部に連続し、少なくとも一部が前記ハウジングに埋設された延設部と、を備え、
前記ハウジングは、
前記端部と前記配線パターン又は前記半導体素子との接合部に対応する位置に目視用の開口部を備え、
前記半導体素子は、第1の配線パターンに接続された第1の半導体素子と、第2の配線パターンに接続された第2の半導体素子とを有し、
前記枠体は、互いに対向する二つの側壁と、前記二つの側壁同士の間で架け渡された梁とを有し、
前記梁は、前記絶縁基板の板厚方向から見て、前記第1の半導体素子又は前記第1の配線パターンと前記第2の半導体素子又は前記第2の配線パターンとの間に位置することにより前記開口部を当該梁の両側に位置する二つの開口部に区画しており、
前記立設部は、前記第1の配線パターン又は前記第1の半導体素子に接合された端部から前記絶縁基板の板厚方向に立設する第1の立設部と、前記第2の配線パターン又は前記第2の半導体素子に接合された端部から前記絶縁基板の板厚方向に立設する第2の立設部とを有し、
前記延設部は、前記屈曲部に連続する平板状の連結部と、前記連結部の側面から前記連結部の板厚方向のうち前記絶縁基板から離れる方向に延び、前記ハウジング外に突出する突出部とを有し、少なくとも一部が前記梁に埋設されており、
前記連結部は、前記二つの開口部に跨っており、各開口部内に突出した前記連結部の両端にはそれぞれ、前記屈曲部を介して前記第1の立設部又は前記第2の立設部が連続している半導体モジュール。 - 前記開口部を区画する前記梁の端面から、前記開口部内に前記バスバーが突出している請求項1に記載の半導体モジュール。
- 前記バスバーは、複数の端部が前記配線パターン又は前記半導体素子に接合されている請求項1又は請求項2に記載の半導体モジュール。
- 前記端部の先端面は、前記配線パターン又は前記半導体素子に突き合わされている請求項1〜請求項3のうちいずれか一項に記載の半導体モジュール。
- 前記端部は、前記先端面に近付くにつれて幅が狭くなる請求項4に記載の半導体モジュール。
- 前記連結部のうち、前記突出部が設けられた部分、及び、前記突出部の基端は、前記梁に埋設されている請求項1〜請求項5のうちいずれか一項に記載の半導体モジュール。
- 前記バスバーは、前記連結部の延びる方向を中心とした対称構造である請求項1〜請求項6のうちいずれか一項に記載の半導体モジュール。
Priority Applications (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2016135931A JP6515886B2 (ja) | 2016-07-08 | 2016-07-08 | 半導体モジュール |
US15/635,922 US10049978B2 (en) | 2016-07-08 | 2017-06-28 | Semiconductor module |
EP17178953.0A EP3267477B1 (en) | 2016-07-08 | 2017-06-30 | Semiconductor module |
KR1020170084117A KR101948176B1 (ko) | 2016-07-08 | 2017-07-03 | 반도체 모듈 |
CN201710536536.9A CN107591384B (zh) | 2016-07-08 | 2017-07-04 | 半导体模块 |
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JP2016135931A JP6515886B2 (ja) | 2016-07-08 | 2016-07-08 | 半導体モジュール |
Publications (2)
Publication Number | Publication Date |
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JP2018006697A JP2018006697A (ja) | 2018-01-11 |
JP6515886B2 true JP6515886B2 (ja) | 2019-05-22 |
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JP2016135931A Active JP6515886B2 (ja) | 2016-07-08 | 2016-07-08 | 半導体モジュール |
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JPS59208736A (ja) | 1983-05-12 | 1984-11-27 | Fuji Electric Co Ltd | 半導体装置の組立て方法 |
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JP2013069739A (ja) * | 2011-09-21 | 2013-04-18 | Toyota Motor Corp | 半導体ユニットとその製造方法 |
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DE102014115847B4 (de) * | 2014-10-30 | 2018-03-08 | Infineon Technologies Ag | Verfahren zur Herstellung eines Leistungshalbleitermoduls |
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