JP2017143207A - 半導体モジュール - Google Patents
半導体モジュール Download PDFInfo
- Publication number
- JP2017143207A JP2017143207A JP2016024694A JP2016024694A JP2017143207A JP 2017143207 A JP2017143207 A JP 2017143207A JP 2016024694 A JP2016024694 A JP 2016024694A JP 2016024694 A JP2016024694 A JP 2016024694A JP 2017143207 A JP2017143207 A JP 2017143207A
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- Prior art keywords
- phase
- conductive plate
- electrode
- switching element
- arm
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- 239000004065 semiconductor Substances 0.000 title claims abstract description 37
- HBMJWWWQQXIZIP-UHFFFAOYSA-N silicon carbide Chemical compound [Si+]#[C-] HBMJWWWQQXIZIP-UHFFFAOYSA-N 0.000 claims abstract description 25
- 229910010271 silicon carbide Inorganic materials 0.000 claims abstract description 22
- 239000000758 substrate Substances 0.000 claims description 25
- 230000002093 peripheral effect Effects 0.000 claims description 10
- 230000005855 radiation Effects 0.000 abstract 1
- 239000000463 material Substances 0.000 description 16
- 239000003507 refrigerant Substances 0.000 description 14
- 239000003990 capacitor Substances 0.000 description 12
- 230000017525 heat dissipation Effects 0.000 description 10
- 238000010992 reflux Methods 0.000 description 10
- 238000004378 air conditioning Methods 0.000 description 5
- 230000006835 compression Effects 0.000 description 5
- 238000007906 compression Methods 0.000 description 5
- 238000009413 insulation Methods 0.000 description 5
- 229910052782 aluminium Inorganic materials 0.000 description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 2
- 239000004020 conductor Substances 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 239000011347 resin Substances 0.000 description 2
- 229920005989 resin Polymers 0.000 description 2
- 238000005549 size reduction Methods 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- ZOKXTWBITQBERF-UHFFFAOYSA-N Molybdenum Chemical compound [Mo] ZOKXTWBITQBERF-UHFFFAOYSA-N 0.000 description 1
- 206010037660 Pyrexia Diseases 0.000 description 1
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 description 1
- 210000000746 body region Anatomy 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 230000002452 interceptive effect Effects 0.000 description 1
- 229910052750 molybdenum Inorganic materials 0.000 description 1
- 239000011733 molybdenum Substances 0.000 description 1
- 230000003071 parasitic effect Effects 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
- 229910052709 silver Inorganic materials 0.000 description 1
- 239000004332 silver Substances 0.000 description 1
- 229910000679 solder Inorganic materials 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
- 230000001131 transforming effect Effects 0.000 description 1
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- H01L2924/1304—Transistor
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- H01L2924/11—Device type
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- H01L2924/1304—Transistor
- H01L2924/1306—Field-effect transistor [FET]
- H01L2924/13091—Metal-Oxide-Semiconductor Field-Effect Transistor [MOSFET]
Abstract
Description
インバータケース31は、伝熱性を有する材料(例えばアルミニウム等の金属)で形成されている。インバータケース31は、ハウジング11の軸線方向の両壁部のうち吐出口11bとは反対側の壁部11cに対して接触している板状のベース部材32と、当該ベース部材32に対して組み付けられた有底筒状のカバー部材33とを有する。ベース部材32とカバー部材33とは、固定具としてのボルト34によってハウジング11に固定されている。これにより、インバータケース31及び当該インバータケース31に収容されているインバータ装置30がハウジング11に取り付けられている。つまり、本実施形態のインバータ装置30は、電動圧縮機10に一体化されている。
図2に示すように、トランス41は、1次コイルがDC電源Eに接続されており、2次コイルがフィルタ回路42に接続されている。トランス41の変圧比は、トランス41から出力される直流電力の電圧が、電動モータ13の駆動に適した値となるように、DC電源Eの電圧に対応させて設定されている。
図4及び図5に示すように、インバータモジュール43は、絶縁基板60と、絶縁基板60に取り付けられた第1導電板61とを備えている。上アームスイッチング素子51u〜51w及び上アーム還流ダイオード53u〜53wは、第1導電板61の上に載置されている。
図5及び図6に示すように、スイッチング素子51u〜52wは、全体として略直方体形状である。スイッチング素子51u〜52wは、素子下面51au〜52awと、素子上面51bu〜52bwとを有している。図6に示すように、素子下面51au〜52awには、コレクタ電極51cu〜52cwが形成されている。コレクタ電極51cu〜52cwは、素子下面51au〜52awの全体に形成されている。
u相導電パーツ63uは、Z方向から見て、u相第1延出部63auがu相下アーム還流ダイオード54uに重なり且つu相第2延出部63buがu相下アームスイッチング素子52uに重なるように配置されている。
第1凸部81u〜81wが上アームエミッタ電極51eu〜51ewと接合されているため、第2導電板62u〜62wを介して上アームエミッタ電極51eu〜51ewと下アームコレクタ電極52cu〜52cwとが電気的に接続されている。ここで、第1凸部81u〜81wは、上アームゲート電極51gu〜51gwと重ならない位置に設けられているため、上アームゲート電極51gu〜51gwと第2下側導電板面62au〜62awとの間に上アーム制御端子73u〜73wが入り込むことが可能となっている。そして、上アーム制御端子73u〜73wの一部が上記上アームゲート電極51gu〜51gwと第2下側導電板面62au〜62awとの間に入り込んでいるため、上アーム制御端子73u〜73wと第2導電板62u〜62wとの干渉が回避されている。
(1)インバータモジュール43は、第1導電板61上に載置されている上アームスイッチング素子51u〜51wと、第2導電板62u〜62wを介して上アームスイッチング素子51u〜51wの上に積層されている下アームスイッチング素子52u〜52wとを備えている。各スイッチング素子51u〜52wは、炭化ケイ素を用いて構成されている。かかる構成によれば、各スイッチング素子51u〜52wの実装面積、詳細には両スイッチング素子51u〜51w,52u〜52wの積層方向(Z方向)と直交する平面に占める各スイッチング素子51u〜52wの面積の削減を図ることができる。これにより、インバータモジュール43の小型化を図ることができる。
○ 各スイッチング素子51u〜52wは、IGBTに限られず、例えば炭化ケイ素(SiC)を用いたMOSFET等でもよい。例えば、各スイッチング素子51u〜52wがn型のMOSFETである場合、スイッチング素子51u〜52wは、エミッタ電極51eu〜52ewに代えてソース電極を有し、コレクタ電極51cu〜52cwに代えてドレイン電極を有する。すなわち、上アームスイッチング素子51u〜51wは、第1下側電極としての上アームドレイン電極と、第1上側電極としての上アームソース電極とを有し、下アームスイッチング素子52u〜52wは、第2下側電極としての下アームドレイン電極と、第2上側電極としての下アームソース電極とを有する。
○ インバータモジュール43は、車両に搭載されている電動圧縮機10の電動モータ13の駆動に用いられるものであったが、これに限られず、用途については任意である。例えば、車両に走行用モータが搭載されている場合には、本インバータモジュール43を走行用モータの駆動に用いてもよい。
○ u相上アーム制御端子73uの一部とu相下アーム制御端子74uの一部とが、高低差がある状態でZ方向に重なっていてもよい。他の相も同様である。
○ u相上アームスイッチング素子51uとu相下アームスイッチング素子52uとが、Z方向から見て、ずれた状態で積層されていてもよい。換言すれば、u相上アームスイッチング素子51uとu相下アームスイッチング素子52uとに、互いに重なり合わない領域が存在していてもよい。但し、実装面積を低減できる点に着目すれば、両u相スイッチング素子51u,52uは、その周縁51xu,52xuが揃った状態で積層されているとよい。
(イ)請求項1〜9のうちいずれか一項に記載の半導体モジュールを備え、車載用電動圧縮機に設けられた電動モータを駆動するインバータ装置であって、直流電力を変圧するトランスと、前記トランスによって変圧された直流電力が入力されるLCフィルタ回路と、を備え、前記半導体モジュールは、前記LCフィルタ回路から出力される直流電力を、前記電動モータが駆動可能な駆動電力に変換するものであることを特徴とするインバータ装置。
Claims (9)
- 第1導電板上に載置されているものであって、炭化ケイ素を用いて構成されている第1スイッチング素子と、
第2導電板を介して前記第1スイッチング素子の上に積層されているものであって、炭化ケイ素を用いて構成されている第2スイッチング素子と、
前記第2スイッチング素子の上に設けられている第3導電板と、
を備え、
前記第1スイッチング素子は、
第1上側電極と、第1制御端子が接合された第1ゲート電極とが形成された第1素子上面と、
前記第1素子上面とは反対側の面であって、前記第1導電板と接合された第1下側電極が形成された第1素子下面と、
を備え、
前記第2スイッチング素子は、
前記第3導電板と接合された第2上側電極と、第2制御端子が接合された第2ゲート電極とが形成された第2素子上面と、
前記第2素子上面とは反対側の面であって、第2下側電極が形成された第2素子下面と、
を備え、
前記第2導電板は、
前記第2スイッチング素子が載置されている面であって、前記第2下側電極と接合され、且つ、前記第2素子下面の全体を覆っている第2上側導電板面と、
前記第2上側導電板面とは反対側の面であって前記第1素子上面と対向している第2下側導電板面と、
を備え、
前記第2下側導電板面には、当該第2下側導電板面から前記第1素子上面に向けて突出し、且つ、前記第1上側電極と接合されている第1スイッチング素子用凸部が設けられており、
前記第1スイッチング素子用凸部は、前記両スイッチング素子の積層方向から見て、前記第1ゲート電極とは重ならない位置に設けられており、
前記第1制御端子の一部は、前記第1ゲート電極と前記第2下側導電板面との間に入り込んでいることを特徴とする半導体モジュール。 - 前記第2下側電極は、前記第2素子下面の全体に形成されており、
前記第2上側導電板面は、前記第2下側電極の全体と接触している請求項1に記載の半導体モジュール。 - 前記第1ゲート電極と前記第2ゲート電極とは、前記積層方向から見てずれた位置に設けられており、
前記第1制御端子と前記第2制御端子とは、前記積層方向から見てずれた位置に設けられている請求項1又は請求項2に記載の半導体モジュール。 - 前記第1スイッチング素子及び前記第2スイッチング素子は、前記第1スイッチング素子の周縁と前記第2スイッチング素子の周縁とが前記積層方向に揃った状態で積層されている請求項1〜3のうちいずれか一項に記載の半導体モジュール。
- 前記第3導電板は、前記第2素子上面と対向する第3下側導電板面を備え、
前記第3下側導電板面には、当該第3下側導電板面から前記第2素子上面に向けて突出し、且つ、前記第2上側電極と接合されている第2スイッチング素子用凸部が設けられている請求項1〜4のうちいずれか一項に記載の半導体モジュール。 - 前記第1導電板が取り付けられた絶縁基板を備え、
前記絶縁基板には、
前記第1制御端子が接合されている第1制御パットと、
前記第2制御端子が接合されている第2制御パットと、
が設けられている請求項1〜5のうちいずれか一項に記載の半導体モジュール。 - 前記第1スイッチング素子と、前記第2スイッチング素子と、前記第1制御端子と、前記第2制御端子と、前記第2導電板とを1つの単位ユニットとすると、
前記単位ユニットは、前記第1導電板上に、一方向に配列された状態で複数設けられており、
前記第1制御パット及び前記第2制御パットは、前記単位ユニットに対して前記各単位ユニットの配列方向と直交する方向に離れた位置に配置されており、
前記第1制御端子及び前記第2制御端子は、前記積層方向から見て、前記配列方向と直交する方向に延びている請求項6に記載の半導体モジュール。 - 前記第1スイッチング素子は上アームのIGBTであり、前記第1下側電極は上アームコレクタ電極であり、前記第1上側電極は上アームエミッタ電極であり、
前記第2スイッチング素子は下アームのIGBTであり、前記第2下側電極は下アームコレクタ電極であり、前記第2上側電極は下アームエミッタ電極である請求項1〜7のうちいずれか一項に記載の半導体モジュール。 - 前記第1スイッチング素子は上アームのn型MOSFETであり、前記第1下側電極は上アームドレイン電極であり、前記第1上側電極は上アームソース電極であり、
前記第2スイッチング素子は下アームのn型MOSFETであり、前記第2下側電極は下アームドレイン電極であり、前記第2上側電極は下アームソース電極である請求項1〜7のうちいずれか一項に記載の半導体モジュール。
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EP17750138.4A EP3416189A4 (en) | 2016-02-12 | 2017-02-01 | Semiconductor module and inverter device |
US16/076,228 US20210193803A1 (en) | 2016-02-12 | 2017-02-01 | Semiconductor module and inverter device |
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WO2019068322A1 (de) * | 2017-10-04 | 2019-04-11 | Bitzer Kühlmaschinenbau Gmbh | Kältemittelverdichteranlage |
US11342241B2 (en) | 2018-07-18 | 2022-05-24 | Delta Electronics (Shanghai) Co., Ltd | Power module |
CN111384036B (zh) * | 2018-12-28 | 2021-07-13 | 台达电子企业管理(上海)有限公司 | 功率模块 |
CN110739294B (zh) * | 2018-07-18 | 2021-03-16 | 台达电子企业管理(上海)有限公司 | 功率模块结构 |
EP3598489A1 (en) | 2018-07-18 | 2020-01-22 | Delta Electronics (Shanghai) Co., Ltd. | Power module structure |
EP3598490A1 (en) * | 2018-07-18 | 2020-01-22 | Delta Electronics (Shanghai) Co., Ltd. | Power module |
US11444036B2 (en) | 2018-07-18 | 2022-09-13 | Delta Electronics (Shanghai) Co., Ltd. | Power module assembly |
CN109755200B (zh) * | 2019-01-18 | 2020-03-24 | 上海大郡动力控制技术有限公司 | 一种功率半导体模块及电机控制器 |
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CN108633315A (zh) | 2018-10-09 |
KR102078955B1 (ko) | 2020-02-18 |
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US20210193803A1 (en) | 2021-06-24 |
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