KR101870809B1 - 전력 반도체 소자 - Google Patents
전력 반도체 소자 Download PDFInfo
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- KR101870809B1 KR101870809B1 KR1020160077605A KR20160077605A KR101870809B1 KR 101870809 B1 KR101870809 B1 KR 101870809B1 KR 1020160077605 A KR1020160077605 A KR 1020160077605A KR 20160077605 A KR20160077605 A KR 20160077605A KR 101870809 B1 KR101870809 B1 KR 101870809B1
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- H10D12/00—Bipolar devices controlled by the field effect, e.g. insulated-gate bipolar transistors [IGBT]
- H10D12/411—Insulated-gate bipolar transistors [IGBT]
- H10D12/441—Vertical IGBTs
- H10D12/491—Vertical IGBTs having both emitter contacts and collector contacts in the same substrate side
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- H10D12/00—Bipolar devices controlled by the field effect, e.g. insulated-gate bipolar transistors [IGBT]
- H10D12/411—Insulated-gate bipolar transistors [IGBT]
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- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L21/00—Processes or apparatus adapted for the manufacture or treatment of semiconductor or solid state devices or of parts thereof
- H01L21/02—Manufacture or treatment of semiconductor devices or of parts thereof
- H01L21/02104—Forming layers
- H01L21/02365—Forming inorganic semiconducting materials on a substrate
- H01L21/02518—Deposited layers
- H01L21/0257—Doping during depositing
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- H10D12/00—Bipolar devices controlled by the field effect, e.g. insulated-gate bipolar transistors [IGBT]
- H10D12/01—Manufacture or treatment
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- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10D—INORGANIC ELECTRIC SEMICONDUCTOR DEVICES
- H10D12/00—Bipolar devices controlled by the field effect, e.g. insulated-gate bipolar transistors [IGBT]
- H10D12/411—Insulated-gate bipolar transistors [IGBT]
- H10D12/441—Vertical IGBTs
- H10D12/461—Vertical IGBTs having non-planar surfaces, e.g. having trenches, recesses or pillars in the surfaces of the emitter, base or collector regions
- H10D12/481—Vertical IGBTs having non-planar surfaces, e.g. having trenches, recesses or pillars in the surfaces of the emitter, base or collector regions having gate structures on slanted surfaces, on vertical surfaces, or in grooves, e.g. trench gate IGBTs
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- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
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- H10D30/00—Field-effect transistors [FET]
- H10D30/01—Manufacture or treatment
- H10D30/021—Manufacture or treatment of FETs having insulated gates [IGFET]
- H10D30/022—Manufacture or treatment of FETs having insulated gates [IGFET] having lightly-doped source or drain extensions selectively formed at the sides of the gates
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- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10D—INORGANIC ELECTRIC SEMICONDUCTOR DEVICES
- H10D62/00—Semiconductor bodies, or regions thereof, of devices having potential barriers
- H10D62/10—Shapes, relative sizes or dispositions of the regions of the semiconductor bodies; Shapes of the semiconductor bodies
- H10D62/102—Constructional design considerations for preventing surface leakage or controlling electric field concentration
- H10D62/103—Constructional design considerations for preventing surface leakage or controlling electric field concentration for increasing or controlling the breakdown voltage of reverse-biased devices
- H10D62/105—Constructional design considerations for preventing surface leakage or controlling electric field concentration for increasing or controlling the breakdown voltage of reverse-biased devices by having particular doping profiles, shapes or arrangements of PN junctions; by having supplementary regions, e.g. junction termination extension [JTE]
- H10D62/106—Constructional design considerations for preventing surface leakage or controlling electric field concentration for increasing or controlling the breakdown voltage of reverse-biased devices by having particular doping profiles, shapes or arrangements of PN junctions; by having supplementary regions, e.g. junction termination extension [JTE] having supplementary regions doped oppositely to or in rectifying contact with regions of the semiconductor bodies, e.g. guard rings with PN or Schottky junctions
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- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10D—INORGANIC ELECTRIC SEMICONDUCTOR DEVICES
- H10D62/00—Semiconductor bodies, or regions thereof, of devices having potential barriers
- H10D62/10—Shapes, relative sizes or dispositions of the regions of the semiconductor bodies; Shapes of the semiconductor bodies
- H10D62/102—Constructional design considerations for preventing surface leakage or controlling electric field concentration
- H10D62/103—Constructional design considerations for preventing surface leakage or controlling electric field concentration for increasing or controlling the breakdown voltage of reverse-biased devices
- H10D62/105—Constructional design considerations for preventing surface leakage or controlling electric field concentration for increasing or controlling the breakdown voltage of reverse-biased devices by having particular doping profiles, shapes or arrangements of PN junctions; by having supplementary regions, e.g. junction termination extension [JTE]
- H10D62/106—Constructional design considerations for preventing surface leakage or controlling electric field concentration for increasing or controlling the breakdown voltage of reverse-biased devices by having particular doping profiles, shapes or arrangements of PN junctions; by having supplementary regions, e.g. junction termination extension [JTE] having supplementary regions doped oppositely to or in rectifying contact with regions of the semiconductor bodies, e.g. guard rings with PN or Schottky junctions
- H10D62/107—Buried supplementary regions, e.g. buried guard rings
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- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10D—INORGANIC ELECTRIC SEMICONDUCTOR DEVICES
- H10D62/00—Semiconductor bodies, or regions thereof, of devices having potential barriers
- H10D62/10—Shapes, relative sizes or dispositions of the regions of the semiconductor bodies; Shapes of the semiconductor bodies
- H10D62/102—Constructional design considerations for preventing surface leakage or controlling electric field concentration
- H10D62/103—Constructional design considerations for preventing surface leakage or controlling electric field concentration for increasing or controlling the breakdown voltage of reverse-biased devices
- H10D62/105—Constructional design considerations for preventing surface leakage or controlling electric field concentration for increasing or controlling the breakdown voltage of reverse-biased devices by having particular doping profiles, shapes or arrangements of PN junctions; by having supplementary regions, e.g. junction termination extension [JTE]
- H10D62/109—Reduced surface field [RESURF] PN junction structures
- H10D62/111—Multiple RESURF structures, e.g. double RESURF or 3D-RESURF structures
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- H10D—INORGANIC ELECTRIC SEMICONDUCTOR DEVICES
- H10D64/00—Electrodes of devices having potential barriers
- H10D64/111—Field plates
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- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10D—INORGANIC ELECTRIC SEMICONDUCTOR DEVICES
- H10D64/00—Electrodes of devices having potential barriers
- H10D64/111—Field plates
- H10D64/117—Recessed field plates, e.g. trench field plates or buried field plates
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- Computer Hardware Design (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Power Engineering (AREA)
- Electrodes Of Semiconductors (AREA)
- Metal-Oxide And Bipolar Metal-Oxide Semiconductor Integrated Circuits (AREA)
- Insulated Gate Type Field-Effect Transistor (AREA)
Abstract
Description
도 2는 도 1에 도시된 제 1 도핑 영역과 제 2 도핑 영역의 구성을 확대하여 도해한 도면이다.
도 3은 본 발명의 일 실시예에 따른 전력 반도체 소자에서 기판의 상부면과 수직하게 제 1 도핑 영역과 제 2 도핑 영역을 관통하는 방향으로의 전압 분포를 도해한 그래프이다.
도 4는 본 발명의 다른 실시예에 따른 전력 반도체 소자의 구조를 도해하는 단면도이다.
18 : 제 2 도핑 영역
19 : 제 1 도핑 영역
20 : 바디 영역
22 : 소스 영역
28a, 28b, 28c : 게이트 전극 패턴
30 : 층간 절연막
36b : 필드 플레이트 패턴
Claims (9)
- 액티브(active) 영역 및 에지(edge) 영역을 포함하고, 제 1 도전형의 불순물이 도핑된 반도체를 함유하는 기판;
상기 액티브 영역 및 상기 에지 영역에 형성된 트렌치의 내벽에 게이트 절연막을 라이닝한 후 게이트 전극 패턴 물질로 충전하여 구현한 게이트 전극 패턴;
상기 기판의 에지 영역 상에 형성된 절연막;
상기 절연막 상에 형성된 필드 플레이트 패턴; 및
상기 기판의 에지 영역 내부에 매립되어 상기 기판의 상부면과 나란한 벡터 성분을 가지는 방향으로 신장하는 적어도 하나 이상의 제 2 도전형의 제 1 도핑 영역;
상기 기판의 에지 영역에 상기 기판의 상부면에서 하방으로 신장하는 형상을 가지는 적어도 하나 이상의 제 2 도전형의 제 2 도핑 영역;
을 포함하고,
상기 제 2 도전형의 제 1 도핑 영역은 상기 제 2 도핑 영역의 하부 말단과 연결되어 상기 제 2 도핑 영역의 측방으로 돌출되는 형상을 가지며,
상기 기판의 상부면과 수직한 방향으로의 전압 분포는 상기 기판의 상부면과 나란한 방향으로 상기 제 1 도핑 영역을 관통하는 제 1 면과 상기 기판의 상부면과 나란한 방향으로 상기 제 2 도핑 영역을 관통하되 상기 제 1 면의 상방에 위치한 제 2 면 사이에서 전압 역전 구간이 형성되어 상기 제 1 면에서 최저 전압이 형성될 수 있으며, 상기 전압 역전 구간이 형성됨으로써 상기 제 1 도전형의 불순물이 도핑된 반도체를 함유하는 기판과 상기 절연막의 계면에서 상기 제 2 면에서 상기 제 1 면 방향으로의 전기장이 형성될 수 있는,
전력 반도체 소자. - 제 1 항에 있어서,
상기 제 2 도전형의 제 1 도핑 영역은 상기 기판의 상부면과 나란한 방향으로 신장하는, 전력 반도체 소자. - 삭제
- 삭제
- 삭제
- 제 1 항에 있어서,
상기 적어도 하나 이상의 제 2 도전형의 제 2 도핑 영역은 서로 이격되어 배열된 복수개의 제 2 도전형의 제 2 도핑 영역을 포함하고,
상기 적어도 하나 이상의 제 2 도전형의 제 1 도핑 영역은 상기 제 2 도핑 영역의 측방으로 돌출되는 형상을 각각 가지면서 서로 이격되어 배열된 복수개의 제 2 도전형의 제 1 도핑 영역을 포함하는,
전력 반도체 소자. - 제 6 항에 있어서,
상기 복수개의 제 2 도전형의 제 2 도핑 영역 중에서 어느 하나의 제 2 도핑 영역과 바로 인접한 다른 하나의 제 2 도핑 영역 간의 간격은 상기 액티브(active) 영역으로부터 멀어질수록 더 증가되는, 전력 반도체 소자. - 삭제
- 삭제
Priority Applications (4)
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KR1020160077605A KR101870809B1 (ko) | 2016-06-21 | 2016-06-21 | 전력 반도체 소자 |
DE102017210255.1A DE102017210255A1 (de) | 2016-06-21 | 2017-06-20 | Leistungshalbleiterbauelement |
CN201710469418.0A CN107527943B (zh) | 2016-06-21 | 2017-06-20 | 功率半导体装置 |
US15/628,362 US10181519B2 (en) | 2016-06-21 | 2017-06-20 | Power semiconductor device |
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KR1020160077605A KR101870809B1 (ko) | 2016-06-21 | 2016-06-21 | 전력 반도체 소자 |
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KR101870809B1 true KR101870809B1 (ko) | 2018-08-02 |
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KR (1) | KR101870809B1 (ko) |
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Families Citing this family (9)
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JP7201288B2 (ja) * | 2018-07-26 | 2023-01-10 | ラピスセミコンダクタ株式会社 | 半導体装置 |
US10957759B2 (en) | 2018-12-21 | 2021-03-23 | General Electric Company | Systems and methods for termination in silicon carbide charge balance power devices |
CN110212014A (zh) * | 2019-04-30 | 2019-09-06 | 上海功成半导体科技有限公司 | 超结器件终端结构及其制备方法 |
CN110556427B (zh) * | 2019-08-07 | 2021-01-08 | 南京芯舟科技有限公司 | 半导体器件及其结边缘区 |
CN115088080A (zh) * | 2019-12-03 | 2022-09-20 | 株式会社电装 | 半导体装置 |
JP2021185593A (ja) * | 2020-05-25 | 2021-12-09 | 株式会社 日立パワーデバイス | 半導体装置および電力変換装置 |
KR102417145B1 (ko) * | 2020-12-11 | 2022-07-05 | 현대모비스 주식회사 | 전력 반도체 소자 |
US11990553B2 (en) * | 2022-03-31 | 2024-05-21 | Leap Semiconductor Corp. | Merged PiN Schottky (MPS) diode and method of manufacturing the same |
CN115911098A (zh) * | 2023-01-29 | 2023-04-04 | 深圳市威兆半导体股份有限公司 | 碳化硅功率器件终端及其制造方法 |
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JP5188037B2 (ja) * | 2006-06-20 | 2013-04-24 | 株式会社東芝 | 半導体装置 |
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JP2001111056A (ja) * | 1999-10-06 | 2001-04-20 | Mitsubishi Electric Corp | 半導体装置およびその製造方法 |
US7737469B2 (en) * | 2006-05-16 | 2010-06-15 | Kabushiki Kaisha Toshiba | Semiconductor device having superjunction structure formed of p-type and n-type pillar regions |
DE102006046853B4 (de) * | 2006-10-02 | 2010-01-07 | Infineon Technologies Austria Ag | Randkonstruktion für ein Halbleiterbauelement und Verfahren zur Herstellung derselben |
EP2763178B1 (en) | 2011-09-28 | 2021-03-24 | Denso Corporation | Igbt and manufacturing method therefor |
JP6139355B2 (ja) * | 2013-09-24 | 2017-05-31 | トヨタ自動車株式会社 | 半導体装置 |
GB2530284A (en) * | 2014-09-17 | 2016-03-23 | Anvil Semiconductors Ltd | High voltage semiconductor devices |
KR101667796B1 (ko) * | 2015-07-21 | 2016-10-20 | 네이버 주식회사 | 검색 결과의 실시간 변화 양상을 제공하는 검색 결과 제공 방법과 시스템 및 기록 매체 |
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CN107527943B (zh) | 2021-04-27 |
US10181519B2 (en) | 2019-01-15 |
DE102017210255A1 (de) | 2017-12-21 |
US20170365669A1 (en) | 2017-12-21 |
KR20170143391A (ko) | 2017-12-29 |
CN107527943A (zh) | 2017-12-29 |
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