JP7396264B2 - 半導体モジュール及び電力変換装置 - Google Patents
半導体モジュール及び電力変換装置 Download PDFInfo
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- JP7396264B2 JP7396264B2 JP2020215215A JP2020215215A JP7396264B2 JP 7396264 B2 JP7396264 B2 JP 7396264B2 JP 2020215215 A JP2020215215 A JP 2020215215A JP 2020215215 A JP2020215215 A JP 2020215215A JP 7396264 B2 JP7396264 B2 JP 7396264B2
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- Prior art keywords
- semiconductor module
- protection circuit
- temperature protection
- pad
- switching element
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- 239000004065 semiconductor Substances 0.000 title claims description 56
- 238000006243 chemical reaction Methods 0.000 title claims description 17
- 238000012546 transfer Methods 0.000 claims description 45
- 229910052751 metal Inorganic materials 0.000 claims description 5
- 239000002184 metal Substances 0.000 claims description 5
- 230000001681 protective effect Effects 0.000 claims description 3
- 239000000463 material Substances 0.000 claims description 2
- 238000009966 trimming Methods 0.000 description 10
- 230000001939 inductive effect Effects 0.000 description 9
- 238000012986 modification Methods 0.000 description 6
- 230000004048 modification Effects 0.000 description 6
- 230000036413 temperature sense Effects 0.000 description 6
- 238000010586 diagram Methods 0.000 description 4
- 230000001052 transient effect Effects 0.000 description 4
- 230000006378 damage Effects 0.000 description 3
- 230000005855 radiation Effects 0.000 description 3
- 238000012360 testing method Methods 0.000 description 3
- 230000002950 deficient Effects 0.000 description 2
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- 229910052737 gold Inorganic materials 0.000 description 2
- 239000004519 grease Substances 0.000 description 2
- 230000017525 heat dissipation Effects 0.000 description 2
- 229910052709 silver Inorganic materials 0.000 description 2
- 239000000758 substrate Substances 0.000 description 2
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 230000006698 induction Effects 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 238000013021 overheating Methods 0.000 description 1
- 238000010248 power generation Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 238000004544 sputter deposition Methods 0.000 description 1
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- H02P27/00—Arrangements or methods for the control of AC motors characterised by the kind of supply voltage
- H02P27/04—Arrangements or methods for the control of AC motors characterised by the kind of supply voltage using variable-frequency supply voltage, e.g. inverter or converter supply voltage
- H02P27/06—Arrangements or methods for the control of AC motors characterised by the kind of supply voltage using variable-frequency supply voltage, e.g. inverter or converter supply voltage using dc to ac converters or inverters
- H02P27/08—Arrangements or methods for the control of AC motors characterised by the kind of supply voltage using variable-frequency supply voltage, e.g. inverter or converter supply voltage using dc to ac converters or inverters with pulse width modulation
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02P—CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS
- H02P29/00—Arrangements for regulating or controlling electric motors, appropriate for both AC and DC motors
- H02P29/60—Controlling or determining the temperature of the motor or of the drive
- H02P29/68—Controlling or determining the temperature of the motor or of the drive based on the temperature of a drive component or a semiconductor component
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Computer Hardware Design (AREA)
- Physics & Mathematics (AREA)
- Condensed Matter Physics & Semiconductors (AREA)
- General Physics & Mathematics (AREA)
- Chemical & Material Sciences (AREA)
- Materials Engineering (AREA)
- Inverter Devices (AREA)
- Cooling Or The Like Of Semiconductors Or Solid State Devices (AREA)
Description
図1は、実施の形態1に係る半導体モジュールを示す平面図である。この半導体モジュールはインバーターモジュールである。低圧側駆動用途のLVIC1がU相のスイッチング素子2a、V相のスイッチング素子2b、W相のスイッチング素子2cを駆動する。スイッチング素子2a,2b,2cは例えばIGBTであり、ゲートパッド3を有する。LVIC1は、入力部4、出力部5a,5b,5c、温度保護回路6、電源回路7、過電流保護回路8、電源低下保護回路9を有する。U相、V相、W相のスイッチング素子2a,2b,2cに対してそれぞれU相の出力部5a、V相の出力部5b、W相の出力部5cが設けられている。
VOT=OTref・(1+R2/R1)-OTVF・R2/R1 …………(1)
温度保護回路6の温度が上昇すると、温度センスダイオードD1の順方向電圧が下がり、オペアンプOAの出力電圧VOTが上がる。
OTref=VREGOT・Rb/(Ra+Rb) …………(2)
OTref=VREGOT・Rb/(Ra+RLT+Rb) …………(3)
OTref=VREGOT・(RLT+Rb)/(Ra+RLT+Rb) …………(4)
図9は、実施の形態2に係る半導体モジュールを示す平面図である。温度保護回路6は、LVIC1に含まれる電源低下保護回路9などの他の回路に比べて出力部5a,5b,5cの出力パッド10の近くに配置されている。これにより、温度保護回路6への伝熱性が更に向上するため、スイッチング素子2a,2b,2cの温度Tjの急峻な上昇を更に正確に検知することができる。
図10は、実施の形態3に係るスイッチング素子と出力部を示す平面図である。出力部5a,5b,5cの出力パッド10の横にダミーパッド14が設けられている。スイッチング素子2a,2b,2cのゲートパッド3の横にダミーパッド15が設けられている。
本実施の形態は、上述した実施の形態1~3に係る半導体モジュールを電力変換装置に適用したものである。本開示は特定の電力変換装置に限定されるものではないが、以下、三相インバータに本開示を適用した場合について説明する。
Claims (12)
- ゲートパッドを有するスイッチング素子と、
前記スイッチング素子の前記ゲートパッドにワイヤにより接続された出力パッドを有し、前記出力パッドから前記スイッチング素子に駆動信号を出力する出力部と、
温度を検出して保護動作を行う温度保護回路と、
前記出力パッドに接続され、前記出力パッドから前記温度保護回路に向かって延在し、前記スイッチング素子で発生した熱を前記温度保護回路に伝える伝熱パターンとを備えることを特徴とする半導体モジュール。 - 前記伝熱パターンは前記温度保護回路に重なっていることを特徴とする請求項1に記載の半導体モジュール。
- 前記伝熱パターンは前記温度保護回路の周囲を囲んでいることを特徴とする請求項1に記載の半導体モジュール。
- 前記伝熱パターンは複数本設けられていることを特徴とする請求項1~3の何れか1項に記載の半導体モジュール。
- 前記温度保護回路は、他の回路に比べて前記出力パッドの近くに配置されていることを特徴とする請求項1~4の何れか1項に記載の半導体モジュール。
- 前記ワイヤの径は200~500μmであることを特徴とする請求項1~5の何れか1項に記載の半導体モジュール。
- ゲートパッドと、前記ゲートパッドの横に設けられた第1のダミーパッドとを有するスイッチング素子と、
前記スイッチング素子の前記ゲートパッドに導電性ワイヤにより接続された出力パッドと、前記出力パッドの横に設けられ、前記スイッチング素子の前記第1のダミーパッドに熱伝導ワイヤにより接続された第2のダミーパッドとを有し、前記出力パッドから前記スイッチング素子に駆動信号を出力する出力部と、
温度を検知して保護動作を行う温度保護回路と、
前記第2のダミーパッドに接続され、前記第2のダミーパッドから前記温度保護回路に向かって延在し、前記スイッチング素子で発生した熱を前記温度保護回路に伝える伝熱パターンとを備えることを特徴とする半導体モジュール。 - 前記熱伝導ワイヤの径は前記導電性ワイヤの径よりも太いことを特徴とする請求項7に記載の半導体モジュール。
- 前記熱伝導ワイヤの材質は非導電性部材であることを特徴とする請求項7又は8に記載の半導体モジュール。
- 前記伝熱パターンは前記出力パッドにも接続されていることを特徴とする請求項7~9の何れか1項に記載の半導体モジュール。
- 前記伝熱パターンは金属からなり、前記温度保護回路に電気的に接続されていないことを特徴とする請求項1~10の何れか1項に記載の半導体モジュール。
- 入力される電力を変換して出力する請求項1~11の何れか1項に記載の半導体モジュールと、
前記半導体モジュールを制御する制御信号を前記半導体モジュールに出力する制御回路とを備えることを特徴とする電力変換装置。
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JP2003100885A (ja) | 2001-09-26 | 2003-04-04 | Toshiba Microelectronics Corp | 半導体集積回路 |
JP2010267724A (ja) | 2009-05-13 | 2010-11-25 | Ngk Spark Plug Co Ltd | 電子機器 |
JP2011199150A (ja) | 2010-03-23 | 2011-10-06 | Sanken Electric Co Ltd | 半導体装置 |
JP2011258623A (ja) | 2010-06-07 | 2011-12-22 | Toshiba Corp | パワー半導体システム |
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JP5964183B2 (ja) * | 2012-09-05 | 2016-08-03 | ルネサスエレクトロニクス株式会社 | 半導体装置 |
US9007117B2 (en) * | 2013-08-02 | 2015-04-14 | Infineon Technologies Dresden Gmbh | Solid-state switching device having a high-voltage switching transistor and a low-voltage driver transistor |
US9525063B2 (en) * | 2013-10-30 | 2016-12-20 | Infineon Technologies Austria Ag | Switching circuit |
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JP2011199150A (ja) | 2010-03-23 | 2011-10-06 | Sanken Electric Co Ltd | 半導体装置 |
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