KR20040086423A - 전력 반도체소자 - Google Patents
전력 반도체소자 Download PDFInfo
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- KR20040086423A KR20040086423A KR10-2004-7013050A KR20047013050A KR20040086423A KR 20040086423 A KR20040086423 A KR 20040086423A KR 20047013050 A KR20047013050 A KR 20047013050A KR 20040086423 A KR20040086423 A KR 20040086423A
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- 239000004065 semiconductor Substances 0.000 title claims abstract description 199
- 238000000034 method Methods 0.000 claims description 5
- 230000004888 barrier function Effects 0.000 abstract description 48
- 230000015556 catabolic process Effects 0.000 description 45
- 230000005684 electric field Effects 0.000 description 21
- 229910002704 AlGaN Inorganic materials 0.000 description 18
- 230000004048 modification Effects 0.000 description 18
- 238000012986 modification Methods 0.000 description 18
- 230000000694 effects Effects 0.000 description 13
- 239000000463 material Substances 0.000 description 8
- 238000010586 diagram Methods 0.000 description 7
- 239000012535 impurity Substances 0.000 description 7
- 150000004767 nitrides Chemical class 0.000 description 7
- 239000013078 crystal Substances 0.000 description 4
- 230000008859 change Effects 0.000 description 3
- 230000005533 two-dimensional electron gas Effects 0.000 description 3
- 229910004298 SiO 2 Inorganic materials 0.000 description 2
- 230000002068 genetic effect Effects 0.000 description 2
- 125000005842 heteroatom Chemical group 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 230000009467 reduction Effects 0.000 description 2
- 239000000758 substrate Substances 0.000 description 2
- 229910018072 Al 2 O 3 Inorganic materials 0.000 description 1
- 229910002601 GaN Inorganic materials 0.000 description 1
- 125000004429 atom Chemical group 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000005530 etching Methods 0.000 description 1
- 230000004907 flux Effects 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 229910052759 nickel Inorganic materials 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 230000001590 oxidative effect Effects 0.000 description 1
- 238000002161 passivation Methods 0.000 description 1
- 229910052697 platinum Inorganic materials 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- HBMJWWWQQXIZIP-UHFFFAOYSA-N silicon carbide Chemical compound [Si+]#[C-] HBMJWWWQQXIZIP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- 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
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10D—INORGANIC ELECTRIC SEMICONDUCTOR DEVICES
- H10D30/00—Field-effect transistors [FET]
- H10D30/40—FETs having zero-dimensional [0D], one-dimensional [1D] or two-dimensional [2D] charge carrier gas channels
- H10D30/47—FETs having zero-dimensional [0D], one-dimensional [1D] or two-dimensional [2D] charge carrier gas channels having 2D charge carrier gas channels, e.g. nanoribbon FETs or high electron mobility transistors [HEMT]
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10D—INORGANIC ELECTRIC SEMICONDUCTOR DEVICES
- H10D30/00—Field-effect transistors [FET]
- H10D30/40—FETs having zero-dimensional [0D], one-dimensional [1D] or two-dimensional [2D] charge carrier gas channels
- H10D30/47—FETs having zero-dimensional [0D], one-dimensional [1D] or two-dimensional [2D] charge carrier gas channels having 2D charge carrier gas channels, e.g. nanoribbon FETs or high electron mobility transistors [HEMT]
- H10D30/471—High electron mobility transistors [HEMT] or high hole mobility transistors [HHMT]
- H10D30/475—High electron mobility transistors [HEMT] or high hole mobility transistors [HHMT] having wider bandgap layer formed on top of lower bandgap active layer, e.g. undoped barrier HEMTs such as i-AlGaN/GaN HEMTs
- H10D30/4755—High electron mobility transistors [HEMT] or high hole mobility transistors [HHMT] having wider bandgap layer formed on top of lower bandgap active layer, e.g. undoped barrier HEMTs such as i-AlGaN/GaN HEMTs having wide bandgap charge-carrier supplying layers, e.g. modulation doped HEMTs such as n-AlGaAs/GaAs HEMTs
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10D—INORGANIC ELECTRIC SEMICONDUCTOR DEVICES
- H10D30/00—Field-effect transistors [FET]
- H10D30/60—Insulated-gate field-effect transistors [IGFET]
-
- 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
- H10D62/17—Semiconductor regions connected to electrodes not carrying current to be rectified, amplified or switched, e.g. channel regions
- H10D62/343—Gate regions of field-effect devices having PN junction gates
-
- 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
- H10D64/20—Electrodes characterised by their shapes, relative sizes or dispositions
- H10D64/23—Electrodes carrying the current to be rectified, amplified, oscillated or switched, e.g. sources, drains, anodes or cathodes
- H10D64/251—Source or drain electrodes for field-effect devices
-
- 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
- H10D62/17—Semiconductor regions connected to electrodes not carrying current to be rectified, amplified or switched, e.g. channel regions
- H10D62/351—Substrate regions of field-effect devices
- H10D62/357—Substrate regions of field-effect devices of FETs
-
- 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
- H10D62/80—Semiconductor bodies, or regions thereof, of devices having potential barriers characterised by the materials
- H10D62/85—Semiconductor bodies, or regions thereof, of devices having potential barriers characterised by the materials being Group III-V materials, e.g. GaAs
- H10D62/8503—Nitride Group III-V materials, e.g. AlN or GaN
Landscapes
- Junction Field-Effect Transistors (AREA)
- Electrodes Of Semiconductors (AREA)
- Insulated Gate Type Field-Effect Transistor (AREA)
Abstract
Description
Claims (17)
- 도핑되지 않은 AlXGa1-XN(0≤X≤1)의 제1반도체층;제1반도체층의 일 표면 위에 형성된 도핑되지 않은 또는 n형 AlYGa1-YN(0≤Y≤1, X<Y)의 제2반도체층;제2반도체층 위에 선택적으로 형성된 p형 AlZGa1-ZN(0≤Z≤1)의 제3반도체층;제3반도체층의 양측면 중 하나에 위치하고, 제2반도체층 위에 형성된 제1전극;적어도 제3반도체층과 제1전극 사이에서, 제3반도체층에 인접한 제2반도체층 위에 형성된 절연막 및;절연막 위에 형성된 필드 판전극을 구비하여 구성된 것을 특징으로 하는 전력 반도체소자.
- 제1항에 있어서,제3반도체층의 양측면 중 다른 하나에 위치하고, 제2반도체층 위에 형성된 제2전극 및;제3반도체층 위에 형성된 제어전극을 더 구비하여 구성되고,필드 판전극이 제어전극 또는 제2전극과 전기적으로 접속된 것을 특징으로 하는 전력 반도체소자.
- 제2항에 있어서, 제1전극측의 제3반도체층 말단이 제1전극측의 제어전극 말단과 제1전극측의 필드 판전극 말단 사이에 위치한 것을 특징으로 하는 전력 반도체소자.
- 제2항에 있어서, 필드 판전극 아래에 위치한 절연막의 두께가 t로 설정되고, 절연막의 유전상수가 εi로 설정되고, 제2반도체층의 유전상수가 εS로 설정되고, 제1전극측의 제3반도체층 말단과 제1전극측의 제어전극 말단 사이의 거리가 L로 설정될 때, 절연막의 두께 t가εSt > εiL의 관계를 만족하도록 설정되는 것을 특징으로 하는 전력 반도체소자.
- 제2항에 있어서, 필드 판전극 아래에 위치한 절연막의 두께가 t로 설정되고, 절연막의 유전상수가 εi로 설정되고, 제2반도체층의 유전상수가 εS로 설정되고, 제1전극측의 제3반도체층 말단과 제1전극측의 제어전극 말단 사이의 거리가 L로 설정될 때, 절연막의 두께 t가2t/L > (1 + εi/εS)의 관계를 만족하도록 설정되는 것을 특징으로 하는 전력 반도체소자.
- 제2항에 있어서, 제1전극과 제어전극 사이의 간격이 제2전극과 제어전극 사이의 간격 보다 더 넓은 것을 특징으로 하는 전력 반도체소자.
- 제2항에 있어서, 제어전극과 제3반도체층 사이에 형성된 게이트 절연막을 더 구비하여 구성된 것을 특징으로 하는 전력 반도체소자.
- 제7항에 있어서, 제2전극이 제3반도체층과 전기적으로 접속된 것을 특징으로 하는 전력 반도체소자.
- 제8항에 있어서, 제3반도체층이, 평행하게 배열된 제1 및 제2전극과 수직인 방향으로 직사각형 모양으로 형성된 것을 특징으로 하는 전력 반도체소자.
- 제2항에 있어서, 제1반도체층의 다른 표면 위에 형성된 p형 AlWGa1-WN(0≤W≤1, W≤X)의 제4반도체층을 더 구비하여 구성되고,상기 제4반도체층이 제2전극과 전기적으로 접속된 것을 특징으로 하는 전력 반도체소자.
- 제10항에 있어서, 제1반도체층의 두께가 제어전극과 제1전극 사이의 간격 보다 작은 것을 특징으로 하는 전력 반도체소자.
- 도핑되지 않은 AlXGa1-XN(0≤X≤1)의 제1반도체층;제1반도체층의 표면 위에 형성된 도핑되지 않은 또는 n형 AlYGa1-YN(0≤Y≤1, X<Y)의 제2반도체층;제2반도체층 위에 선택적으로 형성된 p형 AlZGa1-ZN(0≤Z≤1)의 제3반도체층;제2반도체층 위에 형성된 절연막;절연막 위에 형성된 필드 판전극;제2반도체층 위에 형성된 제1전극 및;제3반도체층 위에 형성된 제2전극을 구비하여 구성된 것을 특징으로 하는 전력 반도체소자.
- 제12항에 있어서, 제2전극이 제2반도체층과 전기적으로 접속된 것을 특징으로 하는 전력 반도체소자.
- 제12항에 있어서, 제2전극이 필드 판전극과 전기적으로 접속된 것을 특징으로 하는 전력 반도체소자.
- 제12항에 있어서, 제1전극측의 제3반도체층 말단이 제1전극측의 필드 판전극 말단과 제1전극측의 제2전극 말단 사이에 위치한 것을 특징으로 하는 전력 반도체소자.
- 제12항에 있어서, 필드 판전극 아래에 위치한 절연막의 두께가 t로 설정되고, 절연막의 유전상수가 εi로 설정되고, 제2반도체층의 유전상수가 εS로 설정되고, 제1전극측의 제3반도체층 말단과 제1전극측 제어전극의 말단 사이의 거리가 L로 설정될 때, 절연막의 두께 t가εSt > εiL의 관계를 만족하도록 설정되는 것을 특징으로 하는 전력 반도체소자.
- 제12항에 있어서, 필드 판전극 아래에 위치한 절연막의 두께가 t로 설정되고, 절연막의 유전상수가 εi로 설정되고, 제2반도체층의 유전상수가 εS로 설정되고, 제1전극측의 제3반도체층 말단과 제1전극측의 제어전극 말단 사이의 거리가 L로 설정될 때, 절연막의 두께 t가2t/L > (1 + εi/εS)의 관계를 만족하도록 설정되는 것을 특징으로 하는 전력 반도체소자.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PCT/JP2003/000843 WO2004068590A1 (en) | 2003-01-29 | 2003-01-29 | Power semiconductor device |
Publications (2)
Publication Number | Publication Date |
---|---|
KR20040086423A true KR20040086423A (ko) | 2004-10-08 |
KR100573720B1 KR100573720B1 (ko) | 2006-04-26 |
Family
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Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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KR1020047013050A Expired - Fee Related KR100573720B1 (ko) | 2003-01-29 | 2003-01-29 | 전력 반도체소자 |
Country Status (4)
Country | Link |
---|---|
JP (1) | JP4568118B2 (ko) |
KR (1) | KR100573720B1 (ko) |
CN (1) | CN100388509C (ko) |
WO (1) | WO2004068590A1 (ko) |
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JPS54150981A (en) * | 1978-05-18 | 1979-11-27 | Matsushita Electric Ind Co Ltd | Junction-type field effect transistor |
JPS58170070A (ja) * | 1982-03-31 | 1983-10-06 | Nippon Telegr & Teleph Corp <Ntt> | 電界効果トランジスタ |
JPS60235477A (ja) * | 1984-05-09 | 1985-11-22 | Nec Corp | 接合ゲ−ト形電界効果トランジスタ |
JPH11261053A (ja) * | 1998-03-09 | 1999-09-24 | Furukawa Electric Co Ltd:The | 高移動度トランジスタ |
JP3111985B2 (ja) * | 1998-06-16 | 2000-11-27 | 日本電気株式会社 | 電界効果型トランジスタ |
US6639255B2 (en) * | 1999-12-08 | 2003-10-28 | Matsushita Electric Industrial Co., Ltd. | GaN-based HFET having a surface-leakage reducing cap layer |
JP4197400B2 (ja) * | 2001-03-29 | 2008-12-17 | 三菱電機株式会社 | 炭化珪素半導体からなる半導体装置 |
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KR100573720B1 (ko) | 2006-04-26 |
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WO2004068590A1 (en) | 2004-08-12 |
CN1639875A (zh) | 2005-07-13 |
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