JP7006547B2 - 半導体装置 - Google Patents
半導体装置 Download PDFInfo
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- JP7006547B2 JP7006547B2 JP2018168916A JP2018168916A JP7006547B2 JP 7006547 B2 JP7006547 B2 JP 7006547B2 JP 2018168916 A JP2018168916 A JP 2018168916A JP 2018168916 A JP2018168916 A JP 2018168916A JP 7006547 B2 JP7006547 B2 JP 7006547B2
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Description
本発明に係る他の半導体装置は、第一ゲート電極を有し、前記第一ゲート電極に入力される制御信号によって供給された電荷量に応じてチャネル電流が制御される第一スイッチング領域と、第二ゲート電極を有し、前記第二ゲート電極に入力される制御信号によって供給された電荷量に応じてチャネル電流が制御され、前記第一スイッチング領域と並列接続された第二スイッチング領域と、前記第一ゲート電極に前記第一スイッチング領域をターンオンさせるための第一制御信号を出力し、前記第二ゲート電極に前記第二スイッチング領域をターンオンさせるための第二制御信号を出力する制御部と、を備え、前記制御部は、前記第一制御信号と前記第二制御信号とを出力して第一の所定期間が経過した後に、前記第二制御信号の出力を停止させ、記第二制御信号の出力を停止させて第二の所定期間が経過した後に、前記第二制御信号を出力し、前記第二ゲート電極に供給される電荷量が、前記第一ゲート電極に供給される電荷量より多いものである。
本発明の実施の形態1に係る半導体装置100の構成を説明する。図1は、本発明の実施の形態1に係る半導体装置の構成を示す平面図である。また、図2は、本発明の実施の形態1に係る半導体装置の構成を示す断面図である。図1は半導体装置100を上から見た場合の構成を示す平面図であり、図2は図1に記載のA-A線での断面図である。なお、図1及び図2において、半導体装置100の内部に充填される封止材や必要に応じて半導体装置100の上面に設けられる蓋など、いくつかの部材は、省略して示している。
本発明の実施の形態2に係る半導体装置200の構成を説明する。実施の形態1では、第二の所定期間t2が、制御部25の構成により予め設定された期間で制御する場合について説明したが、実施の形態2では、第二の所定期間t2を制御するための電圧検出回路250を有し、電圧検出回路250が検出した高電位側信号端子260と基準電位信号端子14との間の電圧に基づいて第二の所定時間が制御される場合について説明する。なお、本発明の実施の形態2では、本発明の実施の形態1と同一又は対応する部分についての説明は、省略している。
図10は、本発明の実施の形態3に係る半導体装置に搭載した半導体素子の駆動配線の構成を示す平面図である。本発明の実施の形態3に係る半導体装置300は、第一ゲート電極308aの電圧上昇の完了に必要な電荷量に対し、第二ゲート電極308bの電圧上昇の完了に必要な電荷量が多くなるように構成されている。ここで、第一ゲート電極8aと第二ゲート電極8bの昇圧完了に必要な電荷量とは、第一ゲート電極308aと第二ゲート電極308bが、電源91の設定電圧と同等の電圧となるまでに第一ゲート電極308aと第二ゲート電極308bが必要な電荷量を指す。なお、本発明の実施の形態3の半導体装置300は、図10に示した半導体素子の駆動配線の構成以外は、実施の形態1及び2に示した半導体装置の構成と同様であり、本発明の実施の形態1及び本発明の実施の形態2と同一又は対応する部分についての説明は、省略している。
2 放熱板
3 電気回路パターン
4 はんだ
5 スイッチング素子
6 エミッタ電極
7a 第一ゲート信号入力部
7b 第二ゲート信号入力部
8a 第一ゲート電極
8b 第二ゲート電極
9a 第一金属配線
9b 第二金属配線
10a 第一スイッチング領域
10b 第二スイッチング領域
11 コンタクトホール
12 還流素子
13 ケース樹脂
14 基準電位信号端子
15 第一駆動信号端子
16 第二駆動信号端子
17 低電位側主電極
18 高電位側主電極
19 ワイヤ
20 接着材
21 制御基板
22 信号入力端子
23 基準電位入力端子
24 駆1動電位入力端子
25 制御部
90 信号発生装置
91 電源
100 半導体装置
200 半導体装置
221 制御基板
225 制御部
250 電圧検出回路
260 高電位側信号端子
300 半導体装置
305 スイッチング素子
308a 第一ゲート電極
308b 第二ゲート電極
310a 第一スイッチング領域
310b 第二スイッチング領域
Claims (10)
- 第一ゲート電極を有し、前記第一ゲート電極に入力される制御信号によって供給された電荷量に応じてチャネル電流が制御される第一スイッチング領域と、
第二ゲート電極を有し、前記第二ゲート電極に入力される制御信号によって供給された電荷量に応じてチャネル電流が制御され、前記第一スイッチング領域と並列接続された第二スイッチング領域と、
前記第一ゲート電極に前記第一スイッチング領域をターンオンさせるための第一制御信号を出力し、前記第二ゲート電極に前記第二スイッチング領域をターンオンさせるための第二制御信号を出力する制御部と、
を備え、
前記制御部は、
前記第一制御信号と前記第二制御信号とを出力して第一の所定期間が経過した後に、前記第二制御信号の出力を停止させ、
前記第二制御信号の出力を停止させて第二の所定期間が経過した後に、前記第二制御信号を出力し、
前記第一スイッチング領域または前記第二スイッチング領域は、高電位側電極及び低電位側電極に電気的に接続されており、
前記高電位側電極と前記低電位側電極との間の電圧を検出する電圧検出回路を更に有し、
前記制御部は、前記電圧検出回路が検出した前記高電位側電極と前記低電位側電極との間の電圧に基づいて、前記第二の所定期間を制御する半導体装置。 - 前記制御部は、前記第二の所定期間における前記電圧検出回路が検出した前記高電位側電極と前記低電位側電極との間の電圧が、前記第一の所定期間の開始時に前記電圧検出回路が検出した前記高電位側電極と前記低電位側電極との間の電圧より小さい所定の閾値を下回った場合に前記第二制御信号を出力する請求項1に記載の半導体装置。
- 前記閾値は、前記第一の所定期間の開始時に前記電圧検出回路が検出した前記高電位側電極と前記低電位側電極との間の電圧の10%未満である請求項2に記載の半導体装置。
- 第一ゲート電極を有し、前記第一ゲート電極に入力される制御信号によって供給された電荷量に応じてチャネル電流が制御される第一スイッチング領域と、
第二ゲート電極を有し、前記第二ゲート電極に入力される制御信号によって供給された電荷量に応じてチャネル電流が制御され、前記第一スイッチング領域と並列接続された第二スイッチング領域と、
前記第一ゲート電極に前記第一スイッチング領域をターンオンさせるための第一制御信号を出力し、前記第二ゲート電極に前記第二スイッチング領域をターンオンさせるための第二制御信号を出力する制御部と、
を備え、
前記制御部は、
前記第一制御信号と前記第二制御信号とを出力して第一の所定期間が経過した後に、前記第二制御信号の出力を停止させ、
前記第二制御信号の出力を停止させて第二の所定期間が経過した後に、前記第二制御信号を出力し、
前記第二ゲート電極に供給される電荷量が、前記第一ゲート電極に供給される電荷量より多い半導体装置。 - 前記第二ゲート電極の静電容量が、前記第一ゲート電極の静電容量より大きい請求項4に記載の半導体装置。
- 前記第二ゲート電極の数が、前記第一ゲート電極の数より多い請求項5に記載の半導体装置。
- 前記第二の所定期間の経過時点における前記第二ゲート電極の電圧は、第一の所定期間の経過時点における前記第二ゲート電極の電圧より低い請求項1から6のいずれか1項に記載の半導体装置。
- 前記第一スイッチング領域と前記第二スイッチング領域とは、一つの半導体基板に形成された請求項1から7のいずれか1項に記載の半導体装置。
- 前記第一スイッチング領域と前記第二スイッチング領域とは、それぞれ異なる半導体基板に形成された請求項1から7のいずれか1項に記載の半導体装置。
- 前記第一スイッチング領域及び前記第二スイッチング領域は、バンドギャップがSiより大きいワイドバンドギャップ半導体に形成されている請求項1から9のいずれか1項に記載の半導体装置。
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