JP6279296B2 - エンハンスメントモードヘテロ接合トランジスタの製造方法 - Google Patents
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- 238000004519 manufacturing process Methods 0.000 title claims description 39
- 238000002513 implantation Methods 0.000 claims description 57
- 239000002019 doping agent Substances 0.000 claims description 42
- 229910045601 alloy Inorganic materials 0.000 claims description 24
- 239000000956 alloy Substances 0.000 claims description 24
- 239000004065 semiconductor Substances 0.000 claims description 21
- 150000004767 nitrides Chemical class 0.000 claims description 20
- 239000007789 gas Substances 0.000 claims description 14
- 238000002347 injection Methods 0.000 claims description 13
- 239000007924 injection Substances 0.000 claims description 13
- 230000005669 field effect Effects 0.000 claims description 12
- 239000012808 vapor phase Substances 0.000 claims description 11
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 claims description 8
- 229910002704 AlGaN Inorganic materials 0.000 claims description 6
- 229910021529 ammonia Inorganic materials 0.000 claims description 4
- 229910052739 hydrogen Inorganic materials 0.000 claims description 4
- 239000001257 hydrogen Substances 0.000 claims description 4
- 238000005468 ion implantation Methods 0.000 claims description 4
- 239000000203 mixture Substances 0.000 claims description 3
- 238000000927 vapour-phase epitaxy Methods 0.000 claims description 3
- 229910052725 zinc Inorganic materials 0.000 claims description 3
- 125000004435 hydrogen atom Chemical class [H]* 0.000 claims 1
- JMASRVWKEDWRBT-UHFFFAOYSA-N Gallium nitride Chemical compound [Ga]#N JMASRVWKEDWRBT-UHFFFAOYSA-N 0.000 description 12
- 229910002601 GaN Inorganic materials 0.000 description 11
- 239000000758 substrate Substances 0.000 description 10
- 239000000463 material Substances 0.000 description 9
- 230000005684 electric field Effects 0.000 description 6
- 238000000034 method Methods 0.000 description 6
- 238000000151 deposition Methods 0.000 description 5
- 230000008021 deposition Effects 0.000 description 5
- 238000009826 distribution Methods 0.000 description 5
- 238000000137 annealing Methods 0.000 description 4
- 239000007943 implant Substances 0.000 description 4
- 229910052751 metal Inorganic materials 0.000 description 4
- 239000002184 metal Substances 0.000 description 4
- 229910001218 Gallium arsenide Inorganic materials 0.000 description 3
- 229910002056 binary alloy Inorganic materials 0.000 description 3
- 230000015556 catabolic process Effects 0.000 description 3
- 229910052710 silicon Inorganic materials 0.000 description 3
- 239000010703 silicon Substances 0.000 description 3
- 229910000577 Silicon-germanium Inorganic materials 0.000 description 2
- 230000004913 activation Effects 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 238000002248 hydride vapour-phase epitaxy Methods 0.000 description 2
- 150000002431 hydrogen Chemical class 0.000 description 2
- 239000012535 impurity Substances 0.000 description 2
- 150000002500 ions Chemical class 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 229910002058 ternary alloy Inorganic materials 0.000 description 2
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 1
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 1
- LEVVHYCKPQWKOP-UHFFFAOYSA-N [Si].[Ge] Chemical compound [Si].[Ge] LEVVHYCKPQWKOP-UHFFFAOYSA-N 0.000 description 1
- 230000003213 activating effect Effects 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 230000004888 barrier function Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000005229 chemical vapour deposition Methods 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000005137 deposition process Methods 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000012776 electronic material Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000012212 insulator Substances 0.000 description 1
- 239000002243 precursor Substances 0.000 description 1
- 229910052594 sapphire Inorganic materials 0.000 description 1
- 239000010980 sapphire Substances 0.000 description 1
- HBMJWWWQQXIZIP-UHFFFAOYSA-N silicon carbide Chemical compound [Si+]#[C-] HBMJWWWQQXIZIP-UHFFFAOYSA-N 0.000 description 1
- 229910010271 silicon carbide Inorganic materials 0.000 description 1
- 229910052814 silicon oxide Inorganic materials 0.000 description 1
- 238000000859 sublimation Methods 0.000 description 1
- 230000008022 sublimation Effects 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 230000005533 two-dimensional electron gas Effects 0.000 description 1
- 238000005019 vapor deposition process Methods 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
- H01L29/66007—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
-
- 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
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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
- H01L29/66007—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
- H01L29/66431—Unipolar field-effect transistors with a heterojunction interface channel or gate, e.g. HFET, HIGFET, SISFET, HJFET, HEMT
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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
- H01L29/12—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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- Condensed Matter Physics & Semiconductors (AREA)
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- Computer Hardware Design (AREA)
- Manufacturing & Machinery (AREA)
- Junction Field-Effect Transistors (AREA)
Description
− エピタキシャル成長法によって、第1のGaN層を形成する。
− 第1のGaN層の中に、p型ドーパント注入領域を形成する。
− 注入領域と第1のGaN層の上に、エピタキシャル成長法により、第2のGaN層を形成する。
− 第2のGaN層の上に、エピタキシャル成長法によって、AlGaN層を形成する。
− 注入領域とすぐ上のAlGaN層の上に、ゲートを形成する。
− p型ドーパントを注入し、III−V族半導体合金の第1の層の中に、注入領域を形成するステップと、
− 気相エピタキシャル成長条件を維持することにより、第1の層と注入領域との上部を除去するステップと、
− 注入領域の上面における前記ドーパントの密度が最大になったときに、除去を停止するステップと、
− 気相エピタキシャル成長法により、前記注入領域および第1の層の上に、III−V族半導体合金の第2の層を形成するステップと、
− 気相エピタキシャル成長法により、III−V族半導体合金の第3の層を形成し、この第3の層と第2の層との界面に電子ガス層を形成するステップと、
− 前記注入領域の直ぐ上の第3層の層の上に制御ゲートを形成するステップとを含んでいる。
2 基板
3 バッファ層
4 層
5 電子ガス層
6 第3の層
41 第1の層
42 第2の層
51 絶縁層
71 ソース
72 ドレイン
73 ゲート
81 注入領域
82 マスク
83 孔
84 犠牲層
85 注入の一方の部分
86 注入の他方の部分
Claims (15)
- ヘテロ接合電界効果トランジスタ(1)のための製造方法であって、
− p型ドーパントを注入し、III−V族半導体合金の第1の層(41)の中に、注入領域(81)を形成するステップと、
− 気相エピタキシャル成長条件を維持することにより、前記第1の層(41)および前記注入領域(81)の上部を除去するステップと、
− 前記注入領域(81)の上面における前記ドーパントの密度が最大になったときに、前記除去を停止するステップと、
− 気相エピタキシャル成長法により、前記注入領域(81)および前記第1の層の上に、III−V族半導体合金の第2の層(42)を形成するステップと、
− 気相エピタキシャル成長法により、III−V族半導体合金の第3の層(6)を形成し、この第3の層(6)と前記第2の層との界面に、電子ガス層(5)を形成するステップと、
− 前記注入領域(81)の真上にある前記第3の層(6)の上に、制御ゲート(73)を形成するステップとを備えていることを特徴とする製造工程。 - 前記除去するステップは、アンモニア蒸気、水素、または両方の混合物の存在下で実行されることを特徴とする、請求項1に記載の製造工程。
- 前記除去するステップは、30秒〜60分の間気相エピタキシャル成長条件を維持することにより実行されることを特徴とする、請求項1または2に記載の製造工程。
- 前記注入領域(81)は、前記第1の層の中に、5〜100nmの厚さに形成されることを特徴とする、請求項1〜3のいずれか1項に記載の製造工程。
- 前記除去するステップは、前記注入領域(81)の上部の、少なくとも2nmを除去するステップを含むことを特徴とする、請求項4に記載の製造工程。
- 前記注入領域(81)の上部における、前記ドーパントの密度の最大値は、1×1018〜1×10 21 cm−3 であることを特徴とする、請求項1〜5のいずれか1項に記載の製造工程。
- 前記第2の層(42)は、5〜50nmの厚さに形成されることを特徴とする、請求項1〜6のいずれか1項に記載の製造工程。
- 前記第1の層および第2の層は、2元窒化物合金を含むことを特徴とする、請求項1〜7のいずれか1項に記載の製造工程。
- 前記2元窒化物合金は、GaNであることを特徴とする、請求項8に記載の製造工程。
- 前記第3の層(6)は、3元窒化物合金を含むことを特徴とする、請求項1〜9のいずれか1項に記載の製造工程。
- 前記3元窒化物合金は、AlGaNであることを特徴とする、請求項10に記載の製造工程。
- 前記除去するステップは、800℃より高い温度で実行されることを特徴とする、請求項8〜11のいずれか1項に記載の製造工程。
- 前記形成された注入領域のドーパントは、Mg、Zn、C、およびFeを含むグループから選択されることを特徴とする、請求項1〜12のいずれか1項に記載の製造工程。
- 前記ドーパントは、イオン注入によって注入されることを特徴とする、請求項1〜13のいずれか1項に記載の製造工程。
- 前記注入領域は、前記除去するステップの間に、少なくとも部分的に活性化されることを特徴とする、請求項1〜14のいずれか1項に記載の製造工程。
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR1261208A FR2998709B1 (fr) | 2012-11-26 | 2012-11-26 | Procede de fabrication d'un transistor a heterojonction de type normalement bloque |
FR1261208 | 2012-11-26 |
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JP2014116600A JP2014116600A (ja) | 2014-06-26 |
JP6279296B2 true JP6279296B2 (ja) | 2018-02-14 |
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US (1) | US9099491B2 (ja) |
EP (1) | EP2736079B1 (ja) |
JP (1) | JP6279296B2 (ja) |
FR (1) | FR2998709B1 (ja) |
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FR3011981B1 (fr) * | 2013-10-11 | 2018-03-02 | Centre National De La Recherche Scientifique - Cnrs - | Transistor hemt a base d'heterojonction |
WO2015171873A1 (en) * | 2014-05-07 | 2015-11-12 | Cambridge Electronics, Inc. | Transistor structure having buried island regions |
CN104167440B (zh) * | 2014-07-30 | 2017-08-25 | 西安电子科技大学 | 一种增强型AlGaN/GaN异质结场效应晶体管 |
CN104167441B (zh) * | 2014-07-30 | 2017-08-25 | 西安电子科技大学 | 一种增强型MIS结构AlGaN/GaN异质结场效应晶体管 |
FR3026556A1 (fr) * | 2014-09-26 | 2016-04-01 | Commissariat Energie Atomique | Procede de fabrication d'une couche semi-conductrice a base de gan ameliore |
FR3030114B1 (fr) * | 2014-12-15 | 2018-01-26 | Centre National De La Recherche Scientifique - Cnrs - | Transistor hemt |
CN107995995B8 (zh) * | 2015-03-31 | 2022-03-25 | 斯维甘公司 | 异质结构及其生产方法 |
CN112736140B (zh) * | 2021-02-08 | 2023-06-16 | 金陵科技学院 | 一种基于正离子注入的增强型AlGaN/GaN高电子迁移率晶体管 |
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US5243207A (en) * | 1991-03-15 | 1993-09-07 | Texas Instruments Incorporated | Method to integrate HBTs and FETs |
US5349214A (en) * | 1993-09-13 | 1994-09-20 | Motorola, Inc. | Complementary heterojunction device |
US6515316B1 (en) * | 2000-07-14 | 2003-02-04 | Trw Inc. | Partially relaxed channel HEMT device |
US7382001B2 (en) | 2004-01-23 | 2008-06-03 | International Rectifier Corporation | Enhancement mode III-nitride FET |
US7800097B2 (en) * | 2004-12-13 | 2010-09-21 | Panasonic Corporation | Semiconductor device including independent active layers and method for fabricating the same |
JP4952055B2 (ja) * | 2006-05-19 | 2012-06-13 | 住友電気工業株式会社 | Iii族窒化物半導体を成長する方法、およびiii族窒化物半導体装置を作製する方法 |
JP2008112868A (ja) * | 2006-10-30 | 2008-05-15 | Eudyna Devices Inc | 半導体装置およびその製造方法 |
US8008689B2 (en) * | 2007-08-23 | 2011-08-30 | Ngk Insulators, Ltd. | MIS gate structure type HEMT device and method of fabricating MIS gate structure type HEMT device |
JP4761319B2 (ja) * | 2008-02-19 | 2011-08-31 | シャープ株式会社 | 窒化物半導体装置とそれを含む電力変換装置 |
US7985986B2 (en) * | 2008-07-31 | 2011-07-26 | Cree, Inc. | Normally-off semiconductor devices |
JP5271022B2 (ja) * | 2008-10-01 | 2013-08-21 | 株式会社豊田中央研究所 | 半導体装置 |
JP5569321B2 (ja) * | 2010-10-07 | 2014-08-13 | 住友電気工業株式会社 | 半導体装置およびその製造方法 |
TWI421947B (zh) * | 2010-11-12 | 2014-01-01 | Univ Nat Chiao Tung | 氮化鎵電晶體的製作方法 |
JP5900315B2 (ja) * | 2012-02-16 | 2016-04-06 | ソニー株式会社 | 半導体装置および半導体装置の製造方法 |
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- 2013-11-25 JP JP2013242443A patent/JP6279296B2/ja active Active
- 2013-11-25 EP EP13194322.7A patent/EP2736079B1/fr active Active
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US20140147977A1 (en) | 2014-05-29 |
US9099491B2 (en) | 2015-08-04 |
FR2998709B1 (fr) | 2015-01-16 |
JP2014116600A (ja) | 2014-06-26 |
EP2736079A2 (fr) | 2014-05-28 |
EP2736079A3 (fr) | 2014-06-18 |
EP2736079B1 (fr) | 2015-08-19 |
FR2998709A1 (fr) | 2014-05-30 |
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