JP7290960B2 - 半導体装置 - Google Patents
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Description
図1~図8に基づき、本発明の第1実施形態にかかる半導体装置A10について説明する。半導体装置A10は、基板10、複数の配線20、複数の柱状配線30、半導体素子40、封止樹脂50、および複数の端子60を備える。これらの図が示す半導体装置A10は、DC/DCコンバータなどの電力変換装置の一部を構成している。半導体装置A10は、対象となる電力変換装置の配線基板に表面実装される樹脂パッケージ形式によるものである。当該パッケージ形式は、QFNである。ここで、図2は、理解の便宜上、図1に対して封止樹脂50、および複数の端子60を透過している。図3は、理解の便宜上、図2に対して半導体素子40を透過し、かつ透過した半導体素子40を想像線(二点鎖線)で示している。また、図2において、V-V線を一点鎖線で示している。
図22~図24に基づき、本発明の第2実施形態にかかる半導体装置A20について説明する。これらの図において、先述した半導体装置A10と同一または類似の要素には同一の符号を付して、重複する説明を省略する。ここで、図23は、理解の便宜上、図22に対して封止樹脂50、および複数の端子60を透過している。図24は、理解の便宜上、図23に対して半導体素子40を透過し、かつ透過した半導体素子40を想像線で示している。
10:基板
10A:主面
10B:第1端面
11:絶縁膜
20:配線
20A:下地層
20B:めっき層
21:第1配線
21A:入力配線
21B:出力配線
21C:接地配線
211:スリット
22:第2配線
291:接合層
292:保護層
30:柱状配線
30A:頂面
31:第1柱状部
32:第2柱状部
40:半導体素子
40A:裏面
401:第1回路
401A:第1スイッチング部
401B:第2スイッチング部
401C:第3スイッチング部
401D:第4スイッチング部
402:第2回路
41:電極
411:第1電極
412:第2電極
50:封止樹脂
50A:実装面
50B:第2端面
60:端子
81:基材
81A:主面
811:絶縁膜
82A:下地層
82B:めっき層
83:柱状導電体
84:封止樹脂
CL:切断線
z:厚さ方向
x:第1方向
y:第2方向
Claims (14)
- 厚さ方向を向く主面を有する基板と、
前記主面に配置された複数の配線と、
前記主面に対向する裏面と、前記裏面に設けられた複数の電極と、を有するとともに、前記複数の電極が前記複数の配線に接合された半導体素子と、
前記厚さ方向に視て前記半導体素子よりも外方に位置し、かつ前記厚さ方向において前記主面から離れる向きに突出するとともに、前記複数の配線に配置された複数の柱状配線と、を備え、
前記半導体素子には、複数のスイッチング回路を含む第1回路と、前記第1回路に導通する第2回路と、が構成されており、
前記複数のスイッチング回路からは、互いに大きさが異なる複数の電力が出力されており、
前記複数の電極は、前記第1回路に導通する複数の第1電極と、前記第2回路に導通する複数の第2電極と、を含み、
前記複数の柱状配線は、前記複数の第1電極に導通する複数の第1柱状部と、前記複数の第2電極に導通する複数の第2柱状部と、を含み、
前記厚さ方向に視て、前記複数の第1柱状部の各々の面積は、前記複数の第2柱状部の各々の面積よりも大であり、
前記複数の第1柱状部は、前記半導体素子の前記厚さ方向に対して直交する第1方向の両側に位置するとともに、前記厚さ方向および前記第1方向の双方に対して直交する第2方向に沿って配列されている、半導体装置。 - 前記第2回路は、制御回路を含む、請求項1に記載の半導体装置。
- 前記複数の第1柱状部の各々において、前記第1方向の寸法は、前記第2方向の寸法よりも大である、請求項1または2に記載の半導体装置。
- 前記複数の第1柱状部の各々は、前記厚さ方向に視て矩形状である、請求項3に記載の半導体装置。
- 前記複数の第2柱状部は、前記半導体素子、および前記複数の第1柱状部の前記第2方向の両側に位置するとともに、前記第1方向に沿って配列されている、請求項1ないし4のいずれかに記載の半導体装置。
- 前記複数の第2柱状部は、前記主面の四隅に位置する4つの隅部と、前記第1方向において前記4つの隅部の間に位置する複数の中間部と、を含み、
前記厚さ方向に視て、前記4つの隅部の各々の面積は、前記複数の中間部の各々の面積よりも大である、請求項5に記載の半導体装置。 - 前記複数の配線は、前記複数の第1電極が接合され、かつ前記複数の第1柱状部が配置された複数の第1配線と、前記複数の第2電極が接合され、かつ前記複数の第2柱状部が配置された複数の第2配線と、を含み、
前記複数の第1電極のいずれかから前記複数の第1柱状部のいずれかに至る区間における前記複数の第1配線の各々の幅は、前記複数の第2電極のいずれかから前記複数の第2柱状部のいずれかに至る区間における前記複数の第2配線の各々の幅よりも大である、請求項1ないし6のいずれかに記載の半導体装置。 - 前記複数の第1配線の各々は、前記第1方向に延びている、請求項7に記載の半導体装置。
- 前記複数の第1配線の少なくともいずれかは、前記厚さ方向に貫通するスリットを有し、
前記スリットは、前記複数の第1配線のいずれかの前記第1方向の端に位置する内縁から前記第1方向に延びている、請求項8に記載の半導体装置。 - 前記スリットを有する前記複数の第1配線のいずれかに接合された前記複数の第1電極は、前記スリットを挟んだ前記第2方向の両側に位置する、請求項9に記載の半導体装置。
- 前記主面に接するとともに、前記複数の配線、および前記半導体素子と、前記複数の柱状配線のそれぞれ一部と、を覆う封止樹脂をさらに備え、
前記複数の柱状配線の各々は、前記主面と同じ側を向く頂面を有し、
前記複数の柱状配線の各々の前記頂面は、前記封止樹脂から露出している、請求項1ないし10のいずれかに記載の半導体装置。 - 前記厚さ方向に視て、前記複数の柱状配線は、前記主面および前記封止樹脂の各々の周縁よりも内方に位置する、請求項11に記載の半導体装置。
- 複数の端子をさらに備え、
前記複数の端子は、前記複数の柱状配線の各々の前記頂面に個別に配置されている、請求項11または12に記載の半導体装置。 - 前記基板は、単結晶の真性半導体材料からなる、請求項1ないし13のいずれかに記載の半導体装置。
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JP2006121004A (ja) | 2004-10-25 | 2006-05-11 | Denso Corp | パワーic |
JP2015230990A (ja) | 2014-06-05 | 2015-12-21 | 株式会社日立製作所 | パワー半導体装置および樹脂封止型モータ |
JP2017201659A (ja) | 2016-05-02 | 2017-11-09 | ローム株式会社 | 電子部品およびその製造方法 |
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JP5150518B2 (ja) * | 2008-03-25 | 2013-02-20 | パナソニック株式会社 | 半導体装置および多層配線基板ならびにそれらの製造方法 |
JP2011181970A (ja) | 2011-06-21 | 2011-09-15 | Renesas Electronics Corp | 半導体装置 |
JP5706251B2 (ja) * | 2011-06-30 | 2015-04-22 | ルネサスエレクトロニクス株式会社 | 半導体装置 |
JP6885701B2 (ja) * | 2016-10-17 | 2021-06-16 | ローム株式会社 | 半導体装置 |
JP6894754B2 (ja) * | 2017-05-10 | 2021-06-30 | ローム株式会社 | 半導体装置 |
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JP2006121004A (ja) | 2004-10-25 | 2006-05-11 | Denso Corp | パワーic |
JP2015230990A (ja) | 2014-06-05 | 2015-12-21 | 株式会社日立製作所 | パワー半導体装置および樹脂封止型モータ |
JP2017201659A (ja) | 2016-05-02 | 2017-11-09 | ローム株式会社 | 電子部品およびその製造方法 |
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US11088065B2 (en) | 2021-08-10 |
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