JP2019075934A - 炭化珪素mosfetインバータ回路 - Google Patents
炭化珪素mosfetインバータ回路 Download PDFInfo
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- HBMJWWWQQXIZIP-UHFFFAOYSA-N silicon carbide Chemical compound [Si+]#[C-] HBMJWWWQQXIZIP-UHFFFAOYSA-N 0.000 title claims abstract description 109
- 229910010271 silicon carbide Inorganic materials 0.000 title claims abstract description 109
- 230000001052 transient effect Effects 0.000 claims description 42
- 239000004065 semiconductor Substances 0.000 claims description 29
- 239000000758 substrate Substances 0.000 description 13
- 238000012216 screening Methods 0.000 description 7
- 239000013078 crystal Substances 0.000 description 6
- 230000007423 decrease Effects 0.000 description 6
- 230000007547 defect Effects 0.000 description 6
- 239000000463 material Substances 0.000 description 6
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 230000003071 parasitic effect Effects 0.000 description 4
- 229910052710 silicon Inorganic materials 0.000 description 4
- 239000010703 silicon Substances 0.000 description 4
- 230000002123 temporal effect Effects 0.000 description 4
- 230000002950 deficient Effects 0.000 description 3
- 239000012535 impurity Substances 0.000 description 3
- 230000006798 recombination Effects 0.000 description 3
- 238000005215 recombination Methods 0.000 description 3
- 239000000969 carrier Substances 0.000 description 2
- 230000006866 deterioration Effects 0.000 description 2
- 230000002441 reversible effect Effects 0.000 description 2
- 240000006829 Ficus sundaica Species 0.000 description 1
- JMASRVWKEDWRBT-UHFFFAOYSA-N Gallium nitride Chemical compound [Ga]#N JMASRVWKEDWRBT-UHFFFAOYSA-N 0.000 description 1
- 230000004888 barrier function Effects 0.000 description 1
- 238000004364 calculation method Methods 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 239000000470 constituent Substances 0.000 description 1
- 230000008602 contraction Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005684 electric field Effects 0.000 description 1
- 239000012776 electronic material Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000005669 field effect Effects 0.000 description 1
- 230000020169 heat generation Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 229910044991 metal oxide Inorganic materials 0.000 description 1
- 150000004706 metal oxides Chemical class 0.000 description 1
- 230000002250 progressing effect Effects 0.000 description 1
- 238000004904 shortening Methods 0.000 description 1
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- H02M7/00—Conversion of ac power input into dc power output; Conversion of dc power input into ac power output
- H02M7/42—Conversion of dc power input into ac power output without possibility of reversal
- H02M7/44—Conversion of dc power input into ac power output without possibility of reversal by static converters
- H02M7/48—Conversion of dc power input into ac power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode
- H02M7/53—Conversion of dc power input into ac power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal
- H02M7/537—Conversion of dc power input into ac power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only, e.g. single switched pulse inverters
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- H01L27/0629—Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate including semiconductor components specially adapted for rectifying, oscillating, amplifying or switching and having potential barriers; including integrated passive circuit elements having potential barriers the substrate being a semiconductor body including a plurality of individual components in a non-repetitive configuration integrated circuits having a two-dimensional layout of components without a common active region comprising components of the field-effect type in combination with diodes, or resistors, or capacitors
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- H01L29/76—Unipolar devices, e.g. field effect transistors
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- H01L29/78—Field effect transistors with field effect produced by an insulated gate
- H01L29/7801—DMOS transistors, i.e. MISFETs with a channel accommodating body or base region adjoining a drain drift region
- H01L29/7802—Vertical DMOS transistors, i.e. VDMOS transistors
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- H02M7/00—Conversion of ac power input into dc power output; Conversion of dc power input into ac power output
- H02M7/42—Conversion of dc power input into ac power output without possibility of reversal
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- H02M7/539—Conversion of dc power input into ac power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only, e.g. single switched pulse inverters with automatic control of output wave form or frequency
- H02M7/5395—Conversion of dc power input into ac power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only, e.g. single switched pulse inverters with automatic control of output wave form or frequency by pulse-width modulation
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- H02M1/00—Details of apparatus for conversion
- H02M1/38—Means for preventing simultaneous conduction of switches
- H02M1/385—Means for preventing simultaneous conduction of switches with means for correcting output voltage deviations introduced by the dead time
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Abstract
Description
5×10-2/exp(−t×1.7×106)/I≦1
を満たすことを特徴とする。
実施の形態の炭化珪素MOSFETの構成は、従来の炭化珪素半導体装置の構成と同様であるため、記載および説明を省略する。図5で説明した従来の炭化珪素半導体装置は、チャネルが基板表面に対して平行に形成されるプレーナー構造の炭化珪素MOSFETであったが、本発明は、インバータ回路で使用される炭化珪素MOSFETに適用可能である。例えば、本発明は、チャネルを基板表面に対して垂直方向に形成したトレンチ構造の縦型MOSFETにも適用可能である。
I=200×exp(−t×1.7×106) ・・・ (1)
で表せる。この曲線より原点側の領域、つまり、矢印D側の領域は、
5×10-2/exp(−t×1.7×106)/I≦1 ・・・ (2)
と表され、式(2)を満たすパルス幅t、電流密度Iでは、積層欠陥が成長しない。
2 n型炭化珪素エピタキシャル層
3 p+型ベース領域
4 p型ベース層
5 n+型ソース領域
6 p+型コンタクト領域
7 n型ウェル領域
8 ゲート絶縁膜
9 ゲート電極
10 ソース電極
11 ドレイン電極
21、22 MOSFET
25 負荷
26、27 内蔵ダイオード
30、31 SiC−SBD
34 入力回路
Claims (5)
- 第1炭化珪素MOSFETと、第2炭化珪素MOSFETとが、直列に接続されたインバータ回路であって、
前記第1炭化珪素MOSFETおよび前記第2炭化珪素MOSFETがオフであるデッドタイムに、前記第1炭化珪素MOSFETの内蔵ダイオードおよび前記第2炭化珪素MOSFETの内蔵ダイオードに流れる過渡電流のパルス幅が2μs未満であることを特徴とする炭化珪素MOSFETインバータ回路。 - 前記過渡電流の電流密度が100A/cm2以下であり、前記過渡電流のパルス幅が0.4μs以下であることを特徴とする請求項1に記載の炭化珪素MOSFETインバータ回路。
- 前記第1炭化珪素MOSFETに逆並列に接続された第1ダイオードと、前記第2炭化珪素MOSFETに逆並列に接続された第2ダイオードと、をさらに含むことを特徴とする請求項1または2に記載の炭化珪素MOSFETインバータ回路。
- 前記デッドタイムは、2μs以下であることを特徴とする請求項1〜3のいずれか一つに記載の炭化珪素MOSFETインバータ回路。
- 前記過渡電流のパルス幅tおよび前記過渡電流の電流密度Iは、
5×10-2/exp(−t×1.7×106)/I≦1
を満たすことを特徴とする請求項1〜4のいずれか一つに記載の炭化珪素MOSFETインバータ回路。
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JP2017201829A JP6977469B2 (ja) | 2017-10-18 | 2017-10-18 | 炭化珪素mosfetインバータ回路 |
US16/124,535 US10340817B2 (en) | 2017-10-18 | 2018-09-07 | Silicon carbide MOSFET inverter circuit |
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Cited By (3)
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CN114628497A (zh) * | 2022-05-16 | 2022-06-14 | 成都蓉矽半导体有限公司 | 一种集成栅控二极管的碳化硅mosfet元胞版图结构 |
CN114823911A (zh) * | 2022-06-30 | 2022-07-29 | 成都蓉矽半导体有限公司 | 集成高速续流二极管的沟槽碳化硅mosfet及制备方法 |
CN114899239A (zh) * | 2022-07-12 | 2022-08-12 | 深圳芯能半导体技术有限公司 | 一种碳化硅mosfet及其制备方法 |
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CN113037058A (zh) * | 2019-12-24 | 2021-06-25 | 中车永济电机有限公司 | SiC功率器件驱动装置和牵引系统 |
WO2024127817A1 (ja) * | 2022-12-16 | 2024-06-20 | 富士電機株式会社 | 炭化珪素mosfetインバータ回路および炭化珪素mosfetインバータ回路の制御方法 |
Citations (3)
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JP2012147557A (ja) * | 2011-01-11 | 2012-08-02 | Fuji Electric Co Ltd | 半導体モジュールおよび電力変換装置ならびにアクティブノイズキャンセル方法 |
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JP2017055649A (ja) * | 2015-09-11 | 2017-03-16 | 富士電機株式会社 | 半導体装置およびその駆動方法 |
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JP4879507B2 (ja) | 2005-04-14 | 2012-02-22 | 関西電力株式会社 | バイポーラ型半導体装置の順方向電圧回復方法、積層欠陥縮小方法およびバイポーラ型半導体装置 |
JP5002706B2 (ja) * | 2008-03-19 | 2012-08-15 | 三菱電機株式会社 | 電力変換装置 |
JP5822773B2 (ja) * | 2012-04-17 | 2015-11-24 | 三菱電機株式会社 | 電力変換装置 |
WO2014049807A1 (ja) * | 2012-09-28 | 2014-04-03 | 株式会社日立製作所 | 半導体装置、およびそれを用いた電力変換装置 |
WO2015049743A1 (ja) * | 2013-10-02 | 2015-04-09 | 富士電機株式会社 | 3レベルインバータ |
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JP2012147557A (ja) * | 2011-01-11 | 2012-08-02 | Fuji Electric Co Ltd | 半導体モジュールおよび電力変換装置ならびにアクティブノイズキャンセル方法 |
JP2016095394A (ja) * | 2014-11-14 | 2016-05-26 | 株式会社沖データ | ヒータ制御装置及び画像形成装置 |
JP2017055649A (ja) * | 2015-09-11 | 2017-03-16 | 富士電機株式会社 | 半導体装置およびその駆動方法 |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
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CN114628497A (zh) * | 2022-05-16 | 2022-06-14 | 成都蓉矽半导体有限公司 | 一种集成栅控二极管的碳化硅mosfet元胞版图结构 |
CN114628497B (zh) * | 2022-05-16 | 2022-08-05 | 成都蓉矽半导体有限公司 | 一种集成栅控二极管的碳化硅mosfet元胞版图结构 |
CN114823911A (zh) * | 2022-06-30 | 2022-07-29 | 成都蓉矽半导体有限公司 | 集成高速续流二极管的沟槽碳化硅mosfet及制备方法 |
CN114899239A (zh) * | 2022-07-12 | 2022-08-12 | 深圳芯能半导体技术有限公司 | 一种碳化硅mosfet及其制备方法 |
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