JPWO2017154232A1 - 半導体装置及びリードフレーム - Google Patents
半導体装置及びリードフレーム Download PDFInfo
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Abstract
Description
本願は、2016年3月11日に日本に出願された国際出願PCT/JP2016/057766号に基づき優先権を主張し、その内容をここに援用する。
しかしながら、上記の半導体装置では、外部接続端子部の幅寸法が、基端部から先端部に至るまで一定である。このため、外部接続端子部が複数配列される場合には、隣り合う外部接続端子部間のピッチ(特に、隣り合う外部接続端子部の先端部間のピッチ)を考慮して、外部接続端子部の幅寸法を設定する必要がある。その結果、半導体装置の放熱面積を増やすことに限界がある。
以下、本発明の一実施形態による半導体装置について、図面を参照して説明する。
以下、本発明の一実施形態によるリードフレームについて、図面を参照して説明する。
20 装置本体
21,22,23 装置単位
24 電源配線板
25,26,27 グランド配線板
28,29,30 出力配線板
31,32,33 電源端子板
34,35,36 出力端子板
37,38,39 グランド端子板
41,42,43 回路ユニット
50 封止樹脂
51 貫通孔
61,62,63,64,65,66 ゲート端子板
71,73,75 第一電流経路
72,74,76 第二電流経路
81,82,83,84,85,86 ゲート配線板
91,92,93,94,95,96 半導体素子
101,102,103,104,105,106,107,108,109,110,111,112 接続子
121,122,123,124,125,126 コンデンサ
200 リードフレーム
201,202 タイバー
203 枠体部
Claims (15)
- 互いに対向する第一主面及び第二主面と、前記第一主面の短手方向において互いに対向する第一側面及び第二側面とを有する装置本体と、
前記第一主面の長手方向に交互に連結された幅狭部と幅広部を複数組有する1つの電源配線板であって、前記短手方向において前記幅広部が前記幅狭部に対して前記第一側面側に突出している、1つの電源配線板と、
前記電源配線板に沿って前記長手方向に配置された複数の出力配線板であって、前記複数の出力配線板の数は前記電源配線板の前記幅狭部及び前記幅広部の組数と等しく、前記複数の出力配線板の各出力配線板は前記長手方向に連結された幅狭部と幅広部を有し、当該幅広部が当該幅狭部に対して前記第二側面側に突出している、複数の出力配線板と、
前記電源配線板の各幅広部と、前記出力配線板の各幅広部とに1つずつ配置された複数の半導体素子と、
を備え、
前記長手方向において、互いに隣接するどの2つの前記出力配線板についても、一方の出力配線板の前記幅狭部が、他方の前記出力配線板の前記幅広部と向き合っており、
前記短手方向において、前記各出力配線板の前記幅狭部及び前記幅広部が、前記電源配線板の1組の前記幅広部及び前記幅狭部とそれぞれ向き合っており、
前記長手方向において、前記各出力配線板の幅が、前記電源配線板の1組の前記幅狭部及び前記幅広部それぞれの幅の合計よりも小さい、
半導体装置。 - 前記長手方向において互いに隣接する前記電源配線板の2つの前記幅広部と、当該2つの前記幅広部を連結する前記電源配線板の1つの前記幅狭部とで囲まれる領域に1つずつ配置された複数のグランド配線板を更に備え、
前記複数のグランド配線板の各グランド配線板が、前記短手方向において前記電源配線板の1つの前記幅狭部を介して1つの前記出力配線板の前記幅広部と向き合っている、
請求項1に記載の半導体装置。 - 前記長手方向において互いに隣接する2つの前記出力配線板の間に1つずつ配置された複数の第一ゲート配線板と、
前記複数の第一ゲート配線板の各第一ゲート配線板と、当該第一ゲート配線板と隣接する1つの前記出力配線板の前記幅狭部及びこれに連結された前記幅広部と、によって囲まれた領域に1つずつ配置された複数の第二ゲート配線板と、
を更に備える請求項2に記載の半導体装置。 - 前記装置本体は、複数の回路ユニットから構成され、
前記複数の回路ユニットの各回路ユニットが、前記電源配線板の1組の前記幅狭部及び前記幅広部と、1つの前記出力配線板と、1つの前記グランド配線板と、1つの前記第一ゲート配線板と、1つの前記第二ゲート配線板とを含む、
請求項3に記載の半導体装置。 - 前記各回路ユニットにおいて、前記電源配線板の前記幅広部に配置された第一半導体素子と、前記1つの出力配線板の前記幅狭部とを電気接続する第一接続子と、
前記1つの出力配線板の前記幅広部に配置された第二半導体素子と、前記1つのグランド配線板とを電気接続する第二接続子と、
前記第一半導体素子と、前記1つの第一ゲート配線板とを電気接続する第三接続子と、
前記第二半導体素子と、前記1つの第二ゲート配線板とを電気接続する第四接続子と、
を更に備える請求項4に記載の半導体装置。 - 前記電源配線板の各幅広部とそれぞれ一体的に接続され、平面視で当該各幅広部から前記装置本体の前記第一側面側へ突出する複数の電源端子板と、
前記複数のグランド配線板とそれぞれ一体的に接続され、平面視で当該複数のグランド配線板から前記装置本体の前記第一側面側へ突出する複数のグランド端子板と、
前記複数の出力配線板の各幅広部とそれぞれ一体的に接続され、平面視で前記各幅広部から前記装置本体の前記第二側面側へ突出する複数の出力端子板と、
前記複数の第一ゲート配線板とそれぞれ一体的に接続され、平面視で前記装置本体の前記第二側面側へ突出する複数の第一ゲート端子板と、
前記複数の第二ゲート配線板とそれぞれ一体的に接続され、平面視で前記装置本体の前記第二側面側へ突出する複数の第二ゲート端子板と、
を更に備え、
前記複数の電源端子板及び前記複数の出力端子板が、前記複数の第一ゲート端子板及び前記複数の第二ゲート端子板よりも前記長手方向の幅が大きい、
請求項3〜5のいずれか1項に記載の半導体装置。 - 前記各回路ユニットにおいて、前記第三接続子は、前記第一半導体素子から前記1つの第一ゲート配線板へ向かうに従って、前記1つの電源端子板から、前記電源配線板、前記第一半導体素子、前記第一接続子、及び前記1つの出力配線板を経て、前記1つの出力端子板へと至る第一電流経路から反れるように配置されており、
前記各回路ユニットにおいて、前記第四接続子は、前記第二半導体素子から前記1つの第二ゲート配線板へ向かうに従って、前記1つの第一出力端子板から、前記1つの出力配線板、前記第四半導体素子、前記第四接続子、及び前記1つのグランド配線板を経て、前記1つのグランド端子板へと至る第二電流経路から反れるように配置されている、
請求項5に記載の半導体装置。 - 前記複数の電源端子板、前記複数のグランド端子板、前記複数の出力端子板、前記複数の第一ゲート端子板、及び前記複数の第二ゲート端子板の各端子板の延出方向の基端部が、前記装置本体の第二主面と同一平面をなす端子主面を有し、
前記各端子板の前記基端部が、前記各端子板の他の部分よりも幅が広い、
請求項6に記載の半導体装置。 - 前記各端子板の基端部と、前記各端子板の前記他の部分との間に段差がある、
請求項8に記載の半導体装置。 - 前記複数の半導体素子は、前記電源配線板及び前記複数の出力配線板の第一主面に配置され、
前記各配線板の第二主面が、前記装置本体の第二主面を構成する、
請求項8又は9に記載の半導体装置。 - 前記第一接続子から前記第四接続子が、導電性を有する板材である、
請求項5に記載の半導体装置。 - 前記装置本体は、前記各配線板の前記第二主面が露出するように前記各配線板を封止する樹脂を更に備え、
前記樹脂は、前記装置本体の前記長手方向の両端に前記各配線板の厚み方向に貫通する貫通孔を有する、
請求項10または11に記載の半導体装置。 - 前記各端子板の先端部は、前記各配線板の厚み方向において前記第一主面側に突出するように延びている
請求項10から12のいずれか1項に記載の半導体装置。 - 前記電源配線板と前記各出力配線板とを接続する第一コンデンサと、
前記各出力配線板と前記各グランド配線板とを接続する第二コンデンサと、
を更に備える請求項2から13のいずれか1項に記載の半導体装置。 - 請求項6から14のいずれか一項に記載の半導体装置用のリードフレームであって、
前記複数の電源端子板、前記複数のグランド端子板、前記複数の出力端子板、前記複数の第一ゲート端子板、及び前記複数の第二ゲート端子板と、
これらの複数の端子板を連結する連結部と、
を備えるリードフレーム。
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