KR101092467B1 - 인헨스먼트 노말리 오프 질화물 반도체 소자 및 그 제조방법 - Google Patents
인헨스먼트 노말리 오프 질화물 반도체 소자 및 그 제조방법 Download PDFInfo
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- KR101092467B1 KR101092467B1 KR1020090123987A KR20090123987A KR101092467B1 KR 101092467 B1 KR101092467 B1 KR 101092467B1 KR 1020090123987 A KR1020090123987 A KR 1020090123987A KR 20090123987 A KR20090123987 A KR 20090123987A KR 101092467 B1 KR101092467 B1 KR 101092467B1
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- nitride semiconductor
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- 239000004065 semiconductor Substances 0.000 title claims abstract description 115
- 150000004767 nitrides Chemical class 0.000 title claims abstract description 83
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 18
- 238000000034 method Methods 0.000 claims abstract description 29
- 238000005530 etching Methods 0.000 claims abstract description 15
- 239000000758 substrate Substances 0.000 claims abstract description 11
- 238000000059 patterning Methods 0.000 claims abstract description 8
- 229910002704 AlGaN Inorganic materials 0.000 claims description 20
- 230000004888 barrier function Effects 0.000 claims description 19
- 230000000873 masking effect Effects 0.000 claims description 19
- 239000000463 material Substances 0.000 claims description 11
- 238000002488 metal-organic chemical vapour deposition Methods 0.000 claims description 9
- 229910004298 SiO 2 Inorganic materials 0.000 claims description 7
- 229910018072 Al 2 O 3 Inorganic materials 0.000 claims description 6
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims 1
- 229910052814 silicon oxide Inorganic materials 0.000 claims 1
- 230000000903 blocking effect Effects 0.000 abstract description 3
- JMASRVWKEDWRBT-UHFFFAOYSA-N Gallium nitride Chemical compound [Ga]#N JMASRVWKEDWRBT-UHFFFAOYSA-N 0.000 description 25
- 229910002601 GaN Inorganic materials 0.000 description 23
- 229910052751 metal Inorganic materials 0.000 description 13
- 239000002184 metal Substances 0.000 description 13
- 230000008569 process Effects 0.000 description 9
- 239000010408 film Substances 0.000 description 8
- 239000010409 thin film Substances 0.000 description 6
- 230000005533 two-dimensional electron gas Effects 0.000 description 6
- 238000005036 potential barrier Methods 0.000 description 5
- 229910045601 alloy Inorganic materials 0.000 description 4
- 239000000956 alloy Substances 0.000 description 4
- 230000015572 biosynthetic process Effects 0.000 description 4
- 230000005669 field effect Effects 0.000 description 4
- 238000005755 formation reaction Methods 0.000 description 4
- 230000008901 benefit Effects 0.000 description 3
- 239000007789 gas Substances 0.000 description 3
- 239000012535 impurity Substances 0.000 description 3
- 229910052782 aluminium Inorganic materials 0.000 description 2
- 230000015556 catabolic process Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- -1 nitride nitride Chemical class 0.000 description 2
- 230000010287 polarization Effects 0.000 description 2
- 229910052594 sapphire Inorganic materials 0.000 description 2
- 239000010980 sapphire Substances 0.000 description 2
- 229910001218 Gallium arsenide Inorganic materials 0.000 description 1
- 229910004140 HfO Inorganic materials 0.000 description 1
- 238000009825 accumulation Methods 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 239000000969 carrier Substances 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- 238000000407 epitaxy Methods 0.000 description 1
- 229910052737 gold Inorganic materials 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 239000011810 insulating material Substances 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000002086 nanomaterial Substances 0.000 description 1
- 229910052759 nickel Inorganic materials 0.000 description 1
- 150000002902 organometallic compounds Chemical class 0.000 description 1
- 125000002524 organometallic group Chemical group 0.000 description 1
- 239000002243 precursor Substances 0.000 description 1
- 238000000197 pyrolysis Methods 0.000 description 1
- 239000012495 reaction gas Substances 0.000 description 1
- 238000003786 synthesis reaction Methods 0.000 description 1
- 229910052715 tantalum Inorganic materials 0.000 description 1
- 229910052719 titanium Inorganic materials 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L29/00—Semiconductor devices specially adapted for rectifying, amplifying, oscillating or switching and having potential barriers; Capacitors or resistors having potential barriers, e.g. a PN-junction depletion layer or carrier concentration layer; Details of semiconductor bodies or of electrodes thereof ; Multistep manufacturing processes therefor
- H01L29/66—Types of semiconductor device ; Multistep manufacturing processes therefor
- H01L29/68—Types of semiconductor device ; Multistep manufacturing processes therefor controllable by only the electric current supplied, or only the electric potential applied, to an electrode which does not carry the current to be rectified, amplified or switched
- H01L29/76—Unipolar devices, e.g. field effect transistors
- H01L29/772—Field effect transistors
- H01L29/778—Field effect transistors with two-dimensional charge carrier gas channel, e.g. HEMT ; with two-dimensional charge-carrier layer formed at a heterojunction interface
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L29/00—Semiconductor devices specially adapted for rectifying, amplifying, oscillating or switching and having potential barriers; Capacitors or resistors having potential barriers, e.g. a PN-junction depletion layer or carrier concentration layer; Details of semiconductor bodies or of electrodes thereof ; Multistep manufacturing processes therefor
- H01L29/66—Types of semiconductor device ; Multistep manufacturing processes therefor
- H01L29/68—Types of semiconductor device ; Multistep manufacturing processes therefor controllable by only the electric current supplied, or only the electric potential applied, to an electrode which does not carry the current to be rectified, amplified or switched
- H01L29/76—Unipolar devices, e.g. field effect transistors
- H01L29/772—Field effect transistors
- H01L29/778—Field effect transistors with two-dimensional charge carrier gas channel, e.g. HEMT ; with two-dimensional charge-carrier layer formed at a heterojunction interface
- H01L29/7786—Field effect transistors with two-dimensional charge carrier gas channel, e.g. HEMT ; with two-dimensional charge-carrier layer formed at a heterojunction interface with direct single heterostructure, i.e. with wide bandgap layer formed on top of active layer, e.g. direct single heterostructure MIS-like HEMT
- H01L29/7787—Field effect transistors with two-dimensional charge carrier gas channel, e.g. HEMT ; with two-dimensional charge-carrier layer formed at a heterojunction interface with direct single heterostructure, i.e. with wide bandgap layer formed on top of active layer, e.g. direct single heterostructure MIS-like HEMT with wide bandgap charge-carrier supplying layer, e.g. direct single heterostructure MODFET
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L29/00—Semiconductor devices specially adapted for rectifying, amplifying, oscillating or switching and having potential barriers; Capacitors or resistors having potential barriers, e.g. a PN-junction depletion layer or carrier concentration layer; Details of semiconductor bodies or of electrodes thereof ; Multistep manufacturing processes therefor
- H01L29/02—Semiconductor bodies ; Multistep manufacturing processes therefor
- H01L29/06—Semiconductor bodies ; Multistep manufacturing processes therefor characterised by their shape; characterised by the shapes, relative sizes, or dispositions of the semiconductor regions ; characterised by the concentration or distribution of impurities within semiconductor regions
- H01L29/10—Semiconductor bodies ; Multistep manufacturing processes therefor characterised by their shape; characterised by the shapes, relative sizes, or dispositions of the semiconductor regions ; characterised by the concentration or distribution of impurities within semiconductor regions with semiconductor regions connected to an electrode not carrying current to be rectified, amplified or switched and such electrode being part of a semiconductor device which comprises three or more electrodes
- H01L29/1025—Channel region of field-effect devices
- H01L29/1029—Channel region of field-effect devices of field-effect transistors
- H01L29/1033—Channel region of field-effect devices of field-effect transistors with insulated gate, e.g. characterised by the length, the width, the geometric contour or the doping structure
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- H01L29/66—Types of semiconductor device ; Multistep manufacturing processes therefor
- H01L29/66007—Multistep manufacturing processes
- H01L29/66075—Multistep manufacturing processes of devices having semiconductor bodies comprising group 14 or group 13/15 materials
- H01L29/66227—Multistep manufacturing processes of devices having semiconductor bodies comprising group 14 or group 13/15 materials the devices being controllable only by the electric current supplied or the electric potential applied, to an electrode which does not carry the current to be rectified, amplified or switched, e.g. three-terminal devices
- H01L29/66409—Unipolar field-effect transistors
- H01L29/66446—Unipolar field-effect transistors with an active layer made of a group 13/15 material, e.g. group 13/15 velocity modulation transistor [VMT], group 13/15 negative resistance FET [NERFET]
- H01L29/66462—Unipolar field-effect transistors with an active layer made of a group 13/15 material, e.g. group 13/15 velocity modulation transistor [VMT], group 13/15 negative resistance FET [NERFET] with a heterojunction interface channel or gate, e.g. HFET, HIGFET, SISFET, HJFET, HEMT
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- H01L29/02—Semiconductor bodies ; Multistep manufacturing processes therefor
- H01L29/12—Semiconductor bodies ; Multistep manufacturing processes therefor characterised by the materials of which they are formed
- H01L29/20—Semiconductor bodies ; Multistep manufacturing processes therefor characterised by the materials of which they are formed including, apart from doping materials or other impurities, only AIIIBV compounds
- H01L29/2003—Nitride compounds
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- H01L29/00—Semiconductor devices specially adapted for rectifying, amplifying, oscillating or switching and having potential barriers; Capacitors or resistors having potential barriers, e.g. a PN-junction depletion layer or carrier concentration layer; Details of semiconductor bodies or of electrodes thereof ; Multistep manufacturing processes therefor
- H01L29/40—Electrodes ; Multistep manufacturing processes therefor
- H01L29/43—Electrodes ; Multistep manufacturing processes therefor characterised by the materials of which they are formed
- H01L29/49—Metal-insulator-semiconductor electrodes, e.g. gates of MOSFET
- H01L29/51—Insulating materials associated therewith
- H01L29/517—Insulating materials associated therewith the insulating material comprising a metallic compound, e.g. metal oxide, metal silicate
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- General Physics & Mathematics (AREA)
- Computer Hardware Design (AREA)
- Manufacturing & Machinery (AREA)
- Junction Field-Effect Transistors (AREA)
Abstract
Description
Claims (13)
- 삭제
- 삭제
- 삭제
- 삭제
- 삭제
- 삭제
- 기판에 버퍼층을 형성하는 단계;상기 버퍼층 상부에 제1 질화물 반도체 층을 형성하는 단계;상기 제1 질화물 반도체 층 상부의 게이트 영역에 실리콘산화막(SiO2)으로 마스킹 장벽을 패터닝하는 단계;상기 마스킹 장벽을 사이에 두고 소스/드레인 영역에 밴드갭이 다른 제2 질화물 반도체 층을 형성하여 상기 소스/드레인영역 하부에 이종접합층을 형성하는 단계;상기 마스킹 장벽을 제거하는 단계;상기 제2 질화물 반도체 층 및 상기 마스킹 장벽이 제거된 층 상부에 절연막을 형성하는 단계;소스/드레인 영역을 패터닝 하고, 상기 소스/드레인 영역의 상기 절연막을 식각하고, 상기 소스/드레인 영역에 전극을 형성하는 단계; 및상기 게이트 영역의 절연막 상부에 게이트 전극을 형성하는 단계를 포함하는 것을 특징으로 하는 노말리 오프(normally-off) 질화물 반도체 소자 제조방법.
- 삭제
- 제7항에 있어서,상기 제2 질화물 반도체 층은 AlGaN 층인 것을 특징으로 하는 노말리 오프(normally-off) 질화물 반도체 소자 제조방법.
- 제7항에 있어서,상기 제1 질화물 반도체 층 및 제2 질화물 반도체 층은 MOCVD 법으로 형성하는 것을 특징으로 하는 노말리 오프(normally-off) 질화물 반도체 소자 제조방법.
- 제7항에 있어서,상기 절연막은 Al2O3 , HfO2 및 SiO2 중 어느 하나를 재질로 하는 것을 특징으로 하는 노말리 오프(normally-off) 질화물 반도체 소자 제조방법.
- 제7항에 있어서,상기 마스킹 장벽은 SiO2을 재질로 하는 것을 특징으로 하는 노말리 오프(normally-off) 질화물 반도체 소자 제조방법.
- 제7항의 방법으로 제조된 것을 특징으로 하는 노말리 오프(normally-off) 질화물 반도체 소자.
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KR1020090123987A KR101092467B1 (ko) | 2009-12-14 | 2009-12-14 | 인헨스먼트 노말리 오프 질화물 반도체 소자 및 그 제조방법 |
US12/960,499 US8551821B2 (en) | 2009-12-14 | 2010-12-04 | Enhancement normally off nitride semiconductor device manufacturing the same |
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WO2023085524A1 (ko) * | 2021-11-15 | 2023-05-19 | 엘앤디전자 주식회사 | 반도체 능동소자 |
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JP2011082216A (ja) * | 2009-10-02 | 2011-04-21 | Fujitsu Ltd | 化合物半導体装置及びその製造方法 |
CN102856361B (zh) | 2011-06-29 | 2015-07-01 | 财团法人工业技术研究院 | 具有双面场板的晶体管元件及其制造方法 |
TWI508281B (zh) * | 2011-08-01 | 2015-11-11 | Murata Manufacturing Co | Field effect transistor |
KR20130044713A (ko) * | 2011-10-24 | 2013-05-03 | 에스케이하이닉스 주식회사 | 3차원 불휘발성 메모리 소자와, 이를 포함하는 메모리 시스템과, 그 제조방법 |
JP5957994B2 (ja) * | 2012-03-16 | 2016-07-27 | 富士通株式会社 | 半導体装置の製造方法 |
KR101913387B1 (ko) | 2012-03-23 | 2018-10-30 | 삼성전자주식회사 | Ⅲ족 질화물 이종 접합 구조 소자의 선택적 저온 오믹 콘택 형성 방법 |
KR102070979B1 (ko) * | 2012-11-06 | 2020-01-29 | 엘지이노텍 주식회사 | 반도체 소자 |
KR102018265B1 (ko) * | 2012-11-08 | 2019-09-04 | 엘지이노텍 주식회사 | 반도체 소자 |
US9202906B2 (en) | 2013-03-14 | 2015-12-01 | Northrop Grumman Systems Corporation | Superlattice crenelated gate field effect transistor |
CN104167438A (zh) * | 2013-05-20 | 2014-11-26 | 北京天元广建科技研发有限责任公司 | 一种GaN基HEMT器件 |
CN104134689B (zh) * | 2014-06-11 | 2018-02-09 | 华为技术有限公司 | 一种hemt器件及制备方法 |
CN108321200B (zh) * | 2017-12-28 | 2021-06-01 | 中国电子科技集团公司第五十五研究所 | 一种基于p-GaN结构的三维增强型高电子迁移率晶体管及其制造方法 |
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