JP2022121411A - 積層型のiii-v族半導体ダイオード - Google Patents
積層型のiii-v族半導体ダイオード Download PDFInfo
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- 239000004065 semiconductor Substances 0.000 title claims abstract description 50
- 239000002019 doping agent Substances 0.000 claims abstract description 91
- 229910001218 Gallium arsenide Inorganic materials 0.000 claims abstract description 16
- JBRZTFJDHDCESZ-UHFFFAOYSA-N AsGa Chemical compound [As]#[Ga] JBRZTFJDHDCESZ-UHFFFAOYSA-N 0.000 description 13
- 230000000630 rising effect Effects 0.000 description 6
- 239000000758 substrate Substances 0.000 description 6
- 238000000407 epitaxy Methods 0.000 description 5
- 230000007704 transition Effects 0.000 description 5
- 239000002800 charge carrier Substances 0.000 description 2
- 239000012535 impurity Substances 0.000 description 2
- 238000005468 ion implantation Methods 0.000 description 2
- 238000011084 recovery Methods 0.000 description 2
- 235000012431 wafers Nutrition 0.000 description 2
- 230000003247 decreasing effect Effects 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005566 electron beam evaporation Methods 0.000 description 1
- 229910052733 gallium Inorganic materials 0.000 description 1
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 1
- 239000010931 gold Substances 0.000 description 1
- 229910052737 gold Inorganic materials 0.000 description 1
- 229910021478 group 5 element Inorganic materials 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229910001092 metal group alloy Inorganic materials 0.000 description 1
- 238000002488 metal-organic chemical vapour deposition Methods 0.000 description 1
- 238000004544 sputter deposition Methods 0.000 description 1
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- H01L29/66—Types of semiconductor device ; Multistep manufacturing processes therefor
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Abstract
【解決手段】積層型のIII-V族半導体ダイオードは、高濃度nドープされたカソード層12と、高濃度pドープされたアノード層16と、カソード層とアノード層との間に配置されたドリフト領域14と、を備える。ドリフト領域は、低濃度nドープされたドリフト層14.1と、低濃度pドープされたドリフト層14.2と、を有する。nドープされたドリフト層は、pドープされたドリフト層とカソード層との間に配置されており、両方のドリフト層はそれぞれ、少なくとも5μmの層厚と、それぞれの層厚に沿って最大で8×1015cm-3のドーパント濃度最大値と、を有し、両方のドリフト層の相互のドーパント濃度最大値は、0.1から10の比を有し、pドープされたドリフト層の層厚に対するnドープされたドリフト層の層厚の比は、0.5から3である。
【選択図】図4
Description
Claims (12)
- GaAsを含有するかまたはGaAsからなる、積層型のIII-V族半導体ダイオード(10)であって、前記積層型のIII-V族半導体ダイオード(10)は、
・高濃度nドープされたカソード層(12)と、
・高濃度pドープされたアノード層(16)と、
・前記カソード層(12)と前記アノード層(16)との間に配置されたドリフト領域(14)と、
を有し、
・前記ドリフト領域(14)は、低濃度nドープされたドリフト層(14.1)と、低濃度pドープされたドリフト層(14.2)と、を有し、
・前記nドープされたドリフト層(14.1)は、前記pドープされたドリフト層(14.2)と前記カソード層(12)との間に配置されている積層型のIII-V族半導体ダイオード(10)において、
・両方の前記ドリフト層(14.1,14.2)は、それぞれ、少なくとも5μmの層厚(Dn,Dp)と、それぞれの該層厚(Dn,Dp)に沿って最大で8×1015cm-3のドーパント濃度最大値と、を有し、
・両方の前記ドリフト層(14.1,14.2)の相互の前記ドーパント濃度最大値は、0.1から10の比を有し、
・前記pドープされたドリフト層の前記層厚(Dp)に対する前記nドープされたドリフト層の前記層厚(Dn)の比は、0.5から3であり、
・前記アノード層(16)は、一定のドーパント濃度特性を有する第1の区分(16.1)と、前記第1の区分(16.1)と前記ドリフト領域(14)との間に配置された、前記第1の区分(16.1)へ向かう方向で段状に上昇するドーパント濃度特性を有する第2の区分(16.2)と、を有する、
積層型のIII-V族半導体ダイオード(10)。 - 前記nドープされたドリフト層(14.1)の前記層厚(Dn)は、前記pドープされたドリフト層(14.2)の前記層厚(Dp)よりも大きい、
請求項1記載の積層型のIII-V族半導体ダイオード(10)。 - 前記nドープされたドリフト層(14.1)および/または前記pドープされたドリフト層(14.2)は、少なくとも20μmの層厚(Dn,Dp)または少なくとも40μmの層厚(Dn,Dp)を有する、
請求項1または2記載の積層型のIII-V族半導体ダイオード(10)。 - 前記nドープされたドリフト層(14.1)は、前記層厚(Dn)に沿って、前記カソード層(12)へ向かう方向で前記ドーパント濃度最大値まで上昇するドーパント濃度特性を有し、前記pドープされたドリフト層(14.2)は、前記層厚(Dp)に沿って、前記アノード層(16)へ向かう方向で前記ドーパント濃度最大値まで上昇するドーパント濃度特性を有する、
請求項1から3までのいずれか1項記載の積層型のIII-V族半導体ダイオード(10)。 - 前記上昇するドーパント濃度特性は、直線状にかつ/または凹状にかつ/または凸状に構成されている、かつ/または、1つもしくは複数の段を有する、
請求項4記載の積層型のIII-V族半導体ダイオード(10)。 - 1つまたは複数または全ての前記段は、凸状のエッジまたは凹状のエッジまたは直線状のエッジを有する、
請求項5記載の積層型のIII-V族半導体ダイオード(10)。 - 両方の前記ドリフト層(14.1,14.2)の前記ドーパント濃度特性は、それぞれ、別の前記ドリフト層(14.1,14.2)へ向かう方向で、9×1014cm-3未満の値、または6×1014cm-3未満の値、または3×1014cm-3未満の値、または2×1014cm-3未満の値だけ下降する、
請求項3から6までのいずれか1項記載の積層型のIII-V族半導体ダイオード(10)。 - 前記カソード層(12)および/または前記アノード層(16)は、少なくとも1×1017cm-3のドーパント濃度、または少なくとも5×1018cm-3のドーパント濃度、または少なくとも8×1018cm-3のドーパント濃度を有する、
請求項1から7までのいずれか1項記載の積層型のIII-V族半導体ダイオード(10)。 - 前記カソード層(12)および/または前記アノード層(16)は、少なくとも2μmの層厚(DK,DA)、または少なくとも5μmの層厚(DK,DA)、または少なくとも20μmの層厚(DK,DA)を有する、
請求項1から8までのいずれか1項記載の積層型のIII-V族半導体ダイオード(10)。 - 前記カソード層(12)は、一定のドーパント濃度特性を有する第1の区分(12.1)と、前記第1の区分(12.1)と前記ドリフト領域(14)との間に配置された、前記第1の区分(12.1)へ向かう方向で直線状にかつ/または凹状にかつ/または段状に上昇するドーパント濃度特性を有する第2の区分(12.2)と、を有する、
請求項1から9までのいずれか1項記載の積層型のIII-V族半導体ダイオード(10)。 - 前記第2の区分(12.2,16.2)は、少なくとも0.5μmおよび最大で10μmの層厚(DK2,DA2)、好適には少なくとも2μmおよび最大で4μmの層厚(DK2,DA2)を有する、
請求項9記載の積層型のIII-V族半導体ダイオード(10)。 - スイッチング速度を向上させるために、前記pドープされたドリフト層および/または前記アノード層において等電子中心または等価電子中心が設けられている、
請求項1から11までのいずれか1項記載の積層型のIII-V族半導体ダイオード(10)。
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Publication number | Priority date | Publication date | Assignee | Title |
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WO2011024214A1 (ja) * | 2009-08-25 | 2011-03-03 | パナソニック株式会社 | 高速回復ダイオード |
DE102011006675A1 (de) * | 2011-04-01 | 2012-10-04 | Infineon Technologies Bipolar Gmbh & Co. Kg | Leistungshalbleiterbauelement mit tiefem pn-Übergang |
CN103178120A (zh) * | 2011-12-26 | 2013-06-26 | 江苏宏微科技有限公司 | 外延型快速恢复二极管及其制备方法 |
JP2019125788A (ja) * | 2018-01-18 | 2019-07-25 | 3−5 パワー エレクトロニクス ゲゼルシャフト ミット ベシュレンクテル ハフツング3−5 Power Electronics GmbH | スタック型のiii−v族半導体ダイオード |
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JPH06314801A (ja) * | 1993-03-05 | 1994-11-08 | Mitsubishi Electric Corp | 半導体装置およびその製造方法 |
DE102007001108B4 (de) * | 2007-01-04 | 2012-03-22 | Infineon Technologies Ag | Diode und Verfahren zu ihrer Herstellung |
DE102016111844A1 (de) | 2016-06-28 | 2017-12-28 | Infineon Technologies Ag | Leistungshalbleitervorrichtung |
DE102016013541A1 (de) | 2016-11-14 | 2018-05-17 | 3 - 5 Power Electronics GmbH | lll-V-Halbleiterdiode |
DE102016013540A1 (de) | 2016-11-14 | 2018-05-17 | 3 - 5 Power Electronics GmbH | lll-V-Halbleiterdiode |
DE102017002936A1 (de) * | 2017-03-24 | 2018-09-27 | 3-5 Power Electronics GmbH | III-V-Halbleiterdiode |
DE102017002935A1 (de) * | 2017-03-24 | 2018-09-27 | 3-5 Power Electronics GmbH | III-V-Halbleiterdiode |
DE102017011878A1 (de) * | 2017-12-21 | 2019-06-27 | 3-5 Power Electronics GmbH | Stapelförmiges III-V-Halbleiterbauelement |
DE102017131354A1 (de) * | 2017-12-27 | 2019-06-27 | Infineon Technologies Ag | Ein Halbleiterbauelement mit breitem Bandabstand und ein Verfahren zum Bilden eines Halbleiterbauelements mit breitem Bandabstand |
DE102019003069B4 (de) * | 2019-04-30 | 2023-06-01 | Azur Space Solar Power Gmbh | Stapelförmige hochsperrende lll-V-Halbleiterleistungsdioden |
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WO2011024214A1 (ja) * | 2009-08-25 | 2011-03-03 | パナソニック株式会社 | 高速回復ダイオード |
DE102011006675A1 (de) * | 2011-04-01 | 2012-10-04 | Infineon Technologies Bipolar Gmbh & Co. Kg | Leistungshalbleiterbauelement mit tiefem pn-Übergang |
CN103178120A (zh) * | 2011-12-26 | 2013-06-26 | 江苏宏微科技有限公司 | 外延型快速恢复二极管及其制备方法 |
JP2019125788A (ja) * | 2018-01-18 | 2019-07-25 | 3−5 パワー エレクトロニクス ゲゼルシャフト ミット ベシュレンクテル ハフツング3−5 Power Electronics GmbH | スタック型のiii−v族半導体ダイオード |
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