JP6082700B2 - Ga2O3系結晶膜の製造方法 - Google Patents
Ga2O3系結晶膜の製造方法 Download PDFInfo
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- JP6082700B2 JP6082700B2 JP2013547166A JP2013547166A JP6082700B2 JP 6082700 B2 JP6082700 B2 JP 6082700B2 JP 2013547166 A JP2013547166 A JP 2013547166A JP 2013547166 A JP2013547166 A JP 2013547166A JP 6082700 B2 JP6082700 B2 JP 6082700B2
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- C30B23/00—Single-crystal growth by condensing evaporated or sublimed materials
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- 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
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- 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
- H01L21/02521—Materials
- H01L21/02565—Oxide semiconducting materials not being Group 12/16 materials, e.g. ternary compounds
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- H—ELECTRICITY
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- 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
- H01L21/02573—Conductivity type
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- H—ELECTRICITY
- 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
- H01L21/02612—Formation types
- H01L21/02617—Deposition types
- H01L21/02631—Physical deposition at reduced pressure, e.g. MBE, sputtering, evaporation
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Description
[5]前記Ga2O3単結晶を0.01〜100μm/hの成長速度でエピタキシャル成長させる、前記[4]に記載のGa2O3系結晶膜の製造方法。
[6]前記Ga2O3単結晶を530〜600℃の成長温度でエピタキシャル成長させる、前記[4]に記載のGa2O3系結晶膜の製造方法。
本発明者等は、研究、調査の結果、Ga2O3系結晶からなる基板上に導電性のGa2O3系結晶膜をエピタキシャル成長させる場合、Ga2O3系結晶膜に導電性を付与する導電型不純物の原料の種類によって、導電性が大きく影響を受け、酸化Snを用いる必要があることを見出した。
図1は、実施の形態に係るGa2O3系結晶基板及びGa2O3系結晶膜の垂直断面図である。
図2は、Ga2O3系結晶膜の形成に用いられるMBE装置の構成の一例を示す。このMBE装置3は、真空槽10と、この真空槽10内に支持され、Ga2O3系結晶基板2を保持する基板ホルダ11と、基板ホルダ11に保持されたGa2O3系結晶基板2を加熱するための加熱装置12と、Ga2O3系結晶膜1を構成する原子の原料が充填された複数のセル13(13a、13b、13c)と、セル13を加熱するためのヒータ14(14a、14b、14c)と、真空槽10内に酸素系ガスを供給するガス供給パイプ15と、真空槽10内の空気を排出するための真空ポンプ16とを備えている。基板ホルダ11は、シャフト110を介して図示しないモータにより回転可能に構成されている。
本実施の形態によれば、MBE法を用いて、優れた導電性を有するGa2O3系結晶膜をGa2O3系結晶基板上にエピタキシャル成長により形成することができる。形成されたGa2O3系結晶膜は、Ga2O3系発光素子やGa2O3系トランジスタ等の半導体素子の構成部材として用いることができる。
SnO2粉末が充填された第2のセル13bの温度と、Ga2O3系結晶膜1のキャリア濃度との関係を、実験により求めた。
SnO2粉末が充填された第2のセル13bの温度と、Ga2O3系結晶膜1のドナー濃度との関係を、実験により求めた。
Claims (6)
- MBE法を用いて、エピタキシャル成長により導電性を有するGa2O3系結晶膜を形成するGa2O3系結晶膜の製造方法であって、
Ga蒸気及びSn蒸気を発生させ、分子線としてGa2O3系結晶基板の表面に供給してSnを含むGa2O3系単結晶膜を成長させる工程を含み、
MBE装置のセルに充填された酸化Snを加熱することにより前記Sn蒸気を発生させ、
前記Ga 2 O 3 系結晶膜のキャリア濃度は1×10 14 〜1×10 20 /cm 3 である、
Ga2O3系結晶膜の製造方法。 - 前記酸化SnはSnO2であり、
前記セルの温度を650〜925℃にして前記Sn蒸気を発生させる、
請求項1に記載のGa2O3系結晶膜の製造方法。 - 前記Ga2O3単結晶を0.01〜100μm/hの成長速度でエピタキシャル成長させる、
請求項1又は2のいずれかに記載のGa2O3系結晶膜の製造方法。 - 前記酸化SnはSnO2であり、
前記セルの温度を450〜1080℃にして前記Sn蒸気を発生させる、請求項1に記載のGa2O3系結晶膜の製造方法。 - 前記Ga2O3単結晶を0.01〜100μm/hの成長速度でエピタキシャル成長させる、請求項4に記載のGa2O3系結晶膜の製造方法。
- 前記Ga2O3単結晶を530〜600℃の成長温度でエピタキシャル成長させる、請求項4に記載のGa2O3系結晶膜の製造方法。
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
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JP2011260493 | 2011-11-29 | ||
JP2011260493 | 2011-11-29 | ||
PCT/JP2012/080623 WO2013080972A1 (ja) | 2011-11-29 | 2012-11-27 | Ga2O3系結晶膜の製造方法 |
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JPWO2013080972A1 JPWO2013080972A1 (ja) | 2015-04-27 |
JP6082700B2 true JP6082700B2 (ja) | 2017-02-15 |
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US (1) | US9657410B2 (ja) |
EP (1) | EP2800128A4 (ja) |
JP (1) | JP6082700B2 (ja) |
TW (1) | TWI553144B (ja) |
WO (1) | WO2013080972A1 (ja) |
Families Citing this family (15)
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JP5984069B2 (ja) * | 2013-09-30 | 2016-09-06 | 株式会社タムラ製作所 | β−Ga2O3系単結晶膜の成長方法、及び結晶積層構造体 |
JP6535204B2 (ja) * | 2015-04-23 | 2019-06-26 | 株式会社タムラ製作所 | Ga2O3系結晶膜の形成方法 |
JP2017041593A (ja) * | 2015-08-21 | 2017-02-23 | 株式会社タムラ製作所 | Ga2O3系結晶膜の形成方法 |
JP6705962B2 (ja) * | 2016-06-03 | 2020-06-03 | 株式会社タムラ製作所 | Ga2O3系結晶膜の成長方法及び結晶積層構造体 |
RU2657674C1 (ru) * | 2017-08-14 | 2018-06-14 | Федеральное государственное бюджетное учреждение науки Институт общей и неорганической химии им. Н.С. Курнакова Российской академии наук (ИОНХ РАН) | Способ получения гетероструктуры Mg(Fe1-xGax)2O4/Si со стабильной межфазной границей |
CN110923665B (zh) * | 2019-11-27 | 2021-08-24 | 太原理工大学 | 一种具有择优取向的Ga2O3和SnO2混相膜的制备方法 |
TR202019031A2 (tr) * | 2020-11-25 | 2021-02-22 | Univ Yildiz Teknik | Yüksek kalitede hetero epitaksiyel monoklinik galyum oksit kristali büyütme metodu |
WO2022240477A1 (en) * | 2021-05-13 | 2022-11-17 | Ohio State Innovation Foundation | IN SITU DAMAGE FREE ETCHING OF Ga 2O3 USING Ga FLUX FOR FABRICATING HIGH ASPECT RATIO 3D STRUCTURES |
WO2023073404A1 (en) * | 2021-10-27 | 2023-05-04 | Silanna UV Technologies Pte Ltd | Methods and systems for heating a wide bandgap substrate |
US11563093B1 (en) | 2021-11-10 | 2023-01-24 | Silanna UV Technologies Pte Ltd | Epitaxial oxide materials, structures, and devices |
WO2023084274A1 (en) | 2021-11-10 | 2023-05-19 | Silanna UV Technologies Pte Ltd | Epitaxial oxide materials, structures, and devices |
WO2023084275A1 (en) | 2021-11-10 | 2023-05-19 | Silanna UV Technologies Pte Ltd | Ultrawide bandgap semiconductor devices including magnesium germanium oxides |
CN114808118B (zh) * | 2022-04-29 | 2024-05-17 | 杭州富加镓业科技有限公司 | 一种在导电型氧化镓衬底上制备同质外延氧化镓薄膜的方法及分子束外延设备 |
CN115928014B (zh) * | 2022-11-23 | 2024-06-14 | 西安邮电大学 | 一种β相氧化镓薄膜及其制备和掺杂方法 |
CN115838971B (zh) * | 2023-02-14 | 2023-06-13 | 楚赟精工科技(上海)有限公司 | 氧化镓薄膜及其制备方法 |
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JP4083396B2 (ja) * | 2000-07-10 | 2008-04-30 | 独立行政法人科学技術振興機構 | 紫外透明導電膜とその製造方法 |
US7393411B2 (en) | 2003-02-24 | 2008-07-01 | Waseda University | β-Ga2O3 single crystal growing method, thin-film single crystal growing method, Ga2O3 light-emitting device, and its manufacturing method |
JP4803634B2 (ja) | 2004-10-01 | 2011-10-26 | 学校法人早稲田大学 | p型Ga2O3膜の製造方法およびpn接合型Ga2O3膜の製造方法 |
JP2008303119A (ja) * | 2007-06-08 | 2008-12-18 | Nippon Light Metal Co Ltd | 高機能性Ga2O3単結晶膜及びその製造方法 |
US9437689B2 (en) | 2011-09-08 | 2016-09-06 | Tamura Corporation | Ga2O3 semiconductor element |
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- 2012-11-27 JP JP2013547166A patent/JP6082700B2/ja active Active
- 2012-11-27 US US14/357,180 patent/US9657410B2/en not_active Expired - Fee Related
- 2012-11-27 EP EP12854328.7A patent/EP2800128A4/en not_active Withdrawn
- 2012-11-27 WO PCT/JP2012/080623 patent/WO2013080972A1/ja active Application Filing
- 2012-11-29 TW TW101144755A patent/TWI553144B/zh not_active IP Right Cessation
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Publication number | Publication date |
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US9657410B2 (en) | 2017-05-23 |
TW201331406A (zh) | 2013-08-01 |
EP2800128A1 (en) | 2014-11-05 |
TWI553144B (zh) | 2016-10-11 |
WO2013080972A1 (ja) | 2013-06-06 |
EP2800128A4 (en) | 2015-02-25 |
US20140331919A1 (en) | 2014-11-13 |
JPWO2013080972A1 (ja) | 2015-04-27 |
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