KR20090005947A - 전력용 반도체장치와 그 제조 방법 - Google Patents
전력용 반도체장치와 그 제조 방법 Download PDFInfo
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Abstract
Description
Claims (6)
- 제1도전형의 이미터 영역과,상기 이미터 영역과 접촉하는 제2도전형의 베이스 영역과,상기 베이스 영역과 접촉하는 제1도전형의 내압유지 영역과,상기 내압유지 영역과 접촉하는 제2도전형인 콜렉터 영역과,상기 콜렉터 영역과 접촉하여 배치되는 전극인 콜렉터 전극을 구비하고,상기 콜렉터 영역은, 전계완화 영역에 겹치는 영역과 능동 영역에 겹치는 영역 모두에 제2도전형의 도팬트가 있으며, 상기 전계완화 영역에 겹치는 영역에는 상기 능동 영역에 겹치는 영역과 비교하여 제2도전형 캐리어의 캐리어 밀도가 낮은 영역이 있는 것을 특징으로 하는 전력용 반도체장치.
- 제 1항에 있어서,상기 내압유지 영역과 상기 콜렉터 영역의 중간에는, 제1도전형이며, 상기 내압유지 영역보다는 제1도전형 캐리어의 캐리어 밀도가 높은 버퍼 영역이 형성되어 있는 것을 특징으로 하는 전력용 반도체장치.
- 제1도전형의 이미터 영역과,상기 이미터 영역과 접촉하는 제2도전형의 베이스 영역과,상기 베이스 영역과 접촉하는 제1도전형의 내압유지 영역과,상기 내압유지 영역과 접촉하는 제2도전형인 콜렉터 영역과,상기 내압유지 영역과 상기 콜렉터 영역의 중간에 배치되는, 제1도전형이며, 상기 내압유지 영역보다는 제1도전형 캐리어의 캐리어 밀도가 높은 버퍼 영역과,상기 콜렉터 영역과 접촉하여 배치되는 전극인 콜렉터 전극을 구비하고,상기 버퍼 영역의 전계완화 영역에 겹치는 영역에는, 능동 영역에 겹치는 영역과 비교하여 제1도전형 캐리어의 캐리어 밀도가 높은 영역이 있는 것을 특징으로 하는 전력용 반도체장치.
- 제 1항 내지 제 3항 중 어느 한 항에 있어서,상기 내압유지 영역의 상기 전계완화 영역에 겹치는 영역에제2도전형의 영역인 가드링과,상기 가드링이 형성되는 영역보다도 상기 능동 영역으로부터 떨어진 영역에 상기 내압유지 영역보다도 제1도전형 캐리어의 캐리어 밀도가 높은 제1도전형의 영역인 채널 스토퍼 영역을 구비하는 것을 특징으로 하는 전력용 반도체장치.
- 이면 연삭기로 웨이퍼 이면을 연삭하는 이면연삭 공정와,상기 웨이퍼 이면으로부터 이온주입을 행하여 콜렉터 영역을 형성하는 콜렉터 형성 공정과,레이저 어닐 처리에 의해, 상기 콜렉터 형성 공정에서 주입된 이온을 활성화하는 콜렉터 활성화 공정과,상기 웨이퍼 이면에 전극을 형성하는 전극형성 공정과,상기 전극형성 공정에서 형성된 전극을 가열하는 전극가열 공정을 구비하고,상기 콜렉터 활성화 공정에는, 상기 콜렉터 영역의 전계완화 영역에 겹치는 영역은 능동 영역에 겹치는 영역보다 낮은 레이저 파워로 상기 레이저 어닐 처리가 행해지는 영역이 있는 것을 특징으로 하는 전력용 반도체장치의 제조 방법.
- 제 5항에 있어서,이온주입에 의해, 상기 콜렉터 영역보다 상기 웨이퍼 이면으로부터 깊은 장소에 상기 콜렉터 영역과 도전형의 다른 버퍼 영역을 형성하는 버퍼 형성 공정과,레이저 어닐 처리에 의해, 상기 버퍼 형성 공정에서 주입된 이온을 활성화하는 버퍼 활성화 공정을 구비하고,상기 버퍼 활성화 공정에서는 상기 버퍼 영역의 상기 전계완화 영역에 겹치는 영역과 상기 능동 영역에 겹치는 영역이 동등한 레이저 파워로, 또는 상기 전계완화 영역에 겹치는 영역은 상기 능동 영역에 겹치는 영역보다 강한 레이저 파워로 상기 레이저 어닐 처리가 행해지는 것을 특징으로 하는 전력용 반도체장치의 제조 방법.
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JPJP-P-2007-00180931 | 2007-07-10 | ||
JP2007180931A JP5286706B2 (ja) | 2007-07-10 | 2007-07-10 | 電力用半導体装置とその製造方法 |
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JP (1) | JP5286706B2 (ko) |
KR (1) | KR100962524B1 (ko) |
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DE102007062305B3 (de) * | 2007-12-21 | 2009-05-28 | Semikron Elektronik Gmbh & Co. Kg | Leistungshalbleiterbauelement mit grabenförmiger Feldringstruktur und Herstellungsverfahren hierzu |
CN102473723B (zh) * | 2009-07-15 | 2014-12-03 | 三菱电机株式会社 | 功率用半导体装置及其制造方法 |
JP2011204711A (ja) * | 2010-03-24 | 2011-10-13 | Toshiba Corp | 半導体装置およびその製造方法 |
CN102208436B (zh) * | 2010-03-31 | 2013-10-02 | 比亚迪股份有限公司 | 功率半导体器件的终端结构及功率半导体器件 |
JP5606240B2 (ja) * | 2010-09-22 | 2014-10-15 | 三菱電機株式会社 | 半導体装置 |
CN103650147B (zh) * | 2011-07-05 | 2016-07-06 | 三菱电机株式会社 | 半导体装置 |
EP2784824B1 (en) * | 2011-11-22 | 2018-03-21 | Toyota Jidosha Kabushiki Kaisha | Semiconductor device |
JP5811829B2 (ja) * | 2011-12-22 | 2015-11-11 | 住友電気工業株式会社 | 半導体装置の製造方法 |
CN102543728A (zh) * | 2012-01-05 | 2012-07-04 | 深圳市鹏微科技有限公司 | 功率三极管芯片薄片制造方法 |
CN103681816A (zh) * | 2012-09-09 | 2014-03-26 | 苏州英能电子科技有限公司 | 一种具有浮置环结构的双极型晶体管 |
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KR102045730B1 (ko) * | 2012-12-28 | 2019-12-03 | 엘지디스플레이 주식회사 | 인버터와 이를 이용한 구동회로 및 표시장치 |
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JP6624101B2 (ja) | 2017-02-03 | 2019-12-25 | 株式会社デンソー | 半導体装置 |
CN111247628B (zh) * | 2018-05-10 | 2024-04-30 | 富士电机株式会社 | 半导体装置的制造方法 |
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JP3684962B2 (ja) * | 1999-12-01 | 2005-08-17 | 富士電機デバイステクノロジー株式会社 | 半導体装置の製造方法 |
JP3977676B2 (ja) * | 2001-03-29 | 2007-09-19 | 株式会社東芝 | 半導体装置及びその製造方法 |
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JP3919591B2 (ja) * | 2002-04-23 | 2007-05-30 | 株式会社豊田中央研究所 | 半導体装置の製造方法 |
JP2003347547A (ja) | 2002-05-27 | 2003-12-05 | Mitsubishi Electric Corp | 電力用半導体装置及びその製造方法 |
DE10330571B8 (de) | 2003-07-07 | 2007-03-08 | Infineon Technologies Ag | Vertikale Leistungshalbleiterbauelemente mit Injektionsdämpfungsmittel im Rand bereich und Herstellungsverfahren dafür |
JP4264316B2 (ja) * | 2003-09-01 | 2009-05-13 | 株式会社豊田中央研究所 | 半導体装置とその製造方法 |
JP4177229B2 (ja) * | 2003-10-29 | 2008-11-05 | 本田技研工業株式会社 | 半導体装置とその製造方法 |
JP4231387B2 (ja) | 2003-11-05 | 2009-02-25 | 本田技研工業株式会社 | 半導体装置とその製造方法 |
JP2005333055A (ja) | 2004-05-21 | 2005-12-02 | Toyota Central Res & Dev Lab Inc | 半導体装置 |
JP4770140B2 (ja) | 2004-08-17 | 2011-09-14 | 富士電機株式会社 | 半導体素子の製造方法 |
DE102005053487B4 (de) | 2005-11-09 | 2011-06-09 | Infineon Technologies Ag | Leistungs-IGBT mit erhöhter Robustheit |
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US8742474B2 (en) | 2014-06-03 |
US20090014753A1 (en) | 2009-01-15 |
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CN101345255A (zh) | 2009-01-14 |
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