JP4670034B2 - 電極を備えたGa2O3系半導体層 - Google Patents
電極を備えたGa2O3系半導体層 Download PDFInfo
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- 239000004065 semiconductor Substances 0.000 title claims description 39
- QZQVBEXLDFYHSR-UHFFFAOYSA-N gallium(III) oxide Inorganic materials O=[Ga]O[Ga]=O QZQVBEXLDFYHSR-UHFFFAOYSA-N 0.000 title 1
- 229910005191 Ga 2 O 3 Inorganic materials 0.000 claims description 55
- 150000001875 compounds Chemical class 0.000 claims description 20
- 239000002019 doping agent Substances 0.000 claims description 16
- 239000000758 substrate Substances 0.000 description 36
- 230000000052 comparative effect Effects 0.000 description 29
- 238000010586 diagram Methods 0.000 description 27
- 238000010438 heat treatment Methods 0.000 description 9
- 238000000034 method Methods 0.000 description 9
- 238000004549 pulsed laser deposition Methods 0.000 description 9
- 238000005530 etching Methods 0.000 description 8
- 230000001678 irradiating effect Effects 0.000 description 7
- 238000005253 cladding Methods 0.000 description 6
- 229910002601 GaN Inorganic materials 0.000 description 4
- 238000010030 laminating Methods 0.000 description 4
- 229910052751 metal Inorganic materials 0.000 description 4
- 239000002184 metal Substances 0.000 description 4
- JMASRVWKEDWRBT-UHFFFAOYSA-N Gallium nitride Chemical compound [Ga]#N JMASRVWKEDWRBT-UHFFFAOYSA-N 0.000 description 3
- 239000000853 adhesive Substances 0.000 description 3
- 230000001070 adhesive effect Effects 0.000 description 3
- 230000006866 deterioration Effects 0.000 description 3
- 239000010408 film Substances 0.000 description 3
- 239000007789 gas Substances 0.000 description 3
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 description 2
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- -1 gallium nitride (GaN) compound Chemical class 0.000 description 2
- 229910052739 hydrogen Inorganic materials 0.000 description 2
- 239000010409 thin film Substances 0.000 description 2
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 1
- 229910052786 argon Inorganic materials 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 239000001307 helium Substances 0.000 description 1
- 229910052734 helium Inorganic materials 0.000 description 1
- SWQJXJOGLNCZEY-UHFFFAOYSA-N helium atom Chemical compound [He] SWQJXJOGLNCZEY-UHFFFAOYSA-N 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 239000011261 inert gas Substances 0.000 description 1
- 238000007733 ion plating Methods 0.000 description 1
- 150000004767 nitrides Chemical class 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 229910052594 sapphire Inorganic materials 0.000 description 1
- 239000010980 sapphire Substances 0.000 description 1
- 238000004544 sputter deposition Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000001771 vacuum deposition Methods 0.000 description 1
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- H01L2224/484—Connecting portions
- H01L2224/48463—Connecting portions the connecting portion on the bonding area of the semiconductor or solid-state body being a ball bond
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- H01L33/02—Semiconductor devices having potential barriers specially adapted for light emission; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof characterised by the semiconductor bodies
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- H01S5/00—Semiconductor lasers
- H01S5/30—Structure or shape of the active region; Materials used for the active region
- H01S5/32—Structure or shape of the active region; Materials used for the active region comprising PN junctions, e.g. hetero- or double- heterostructures
- H01S5/327—Structure or shape of the active region; Materials used for the active region comprising PN junctions, e.g. hetero- or double- heterostructures in AIIBVI compounds, e.g. ZnCdSe-laser
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- Condensed Matter Physics & Semiconductors (AREA)
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Description
図1は、本発明の第1の実施の形態に係る発光素子を示す。この発光素子1は、β−Ga2O3化合物半導体からなるn型β−Ga2O3基板2に、β−AlGaO3化合物半導体からなるn型導電性を示すn型β−AlGaO3クラッド層4、β−Ga2O3からなる活性層5、p型導電性を示すp型β−AlGaO3クラッド層6、およびβ−Ga2O3化合物半導体からなるp型導電性を示すp型β−Ga2O3コンタクト層7を順次積層したものである。
図2は、本発明の第2の実施の形態に係る発光素子を示す図である。この発光素子1は、第1の実施の形態に係る発光素子1とは、n側電極20のみが相違する。この発光素子1のn側電極20は、n型β−Ga2O3基板4の下面に、Ti層21を形成し、その下方にAu層22を形成したものである。Au層22の代わりにPt層であってもよい。
図3は、本発明の第3の実施の形態に係る発光素子の要部を示す。この発光素子1は、第1の実施の形態に係る発光素子1とは、n側電極20のみが相違する。この発光素子1のn側電極20は、n型β−Ga2O3基板2の下面にTi層21、Al層23およびAu層22を順次積層したものである。
図4は、本発明の第4の実施の形態に係る発光素子の要部を示す。この発光素子1は、第1の実施の形態に係る発光素子1とは、n側電極20のみが相違する。この発光素子1のn側電極20は、n型β−Ga2O3基板2の下面にTi層21、Al層23、Ni層24およびAu層22を順次積層したものである。
(比較例1)
(比較例2)
(比較例3)
2 基板
4 n型β−AlGaO3クラッド層
5 活性層
6 p型β−AlGaO3クラッド層
7 p型β−Ga2O3コンタクト層
8 透明電極
9 パッド電極
10,12 接合部
11,13 ワイヤ
20 n側電極
21 Ti層
22 Au層
23 Al層
24 Ni層
30 プリント基板
31 接着剤
40 出射光
41 発光光
Claims (5)
- n型導電性を有し、ドーパントを添加していないβ−Ga2O3化合物半導体からなり、表面がエッチングされたn型層と、
前記n型層上に形成されるTi層と、前記Ti層上に形成されるAu層とからなる電極と
を備え、
前記電極は、前記n型層にオーミック接続している電極を備えたGa2O3系半導体層。 - n型導電性を有し、ドーパントを添加していないβ−Ga2O3化合物半導体からなり、表面がエッチングされたn型層と、
前記n型層上に形成されるTi層と、前記Ti層上に形成されるAl層とからなる電極と
を備え、
前記電極は、前記n型層にオーミック接続している電極を備えたGa2O3系半導体層。 - n型導電性を有し、ドーパントを添加していないβ−Ga2O3化合物半導体からなり、表面がエッチングされたn型層と、
前記n型層上に形成されるTi層と、前記Ti層上に形成されるAl層と、前記Al層上に形成されるAu層とからなる電極と
を備え、
前記電極は、前記n型層にオーミック接続している電極を備えたGa2O3系半導体層。 - n型導電性を有し、ドーパントを添加していないβ−Ga2O3化合物半導体からなり、表面がエッチングされたn型層と、
前記n型層上に形成されるTi層と、前記Ti層上に形成されるAl層と、前記Al層上に形成されるNi層と、前記Ni層上に形成されるAu層とからなる電極と
を備え、
前記電極は、前記n型層にオーミック接続している電極を備えたGa2O3系半導体層。 - 前記Ti層は、15nmの厚さを有して形成される請求項1〜4のいずれか1項に記載の電極を備えたGa2O3系半導体層。
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2004071816A JP4670034B2 (ja) | 2004-03-12 | 2004-03-12 | 電極を備えたGa2O3系半導体層 |
US10/592,533 US7800105B2 (en) | 2004-03-12 | 2005-01-14 | Ga2O3 semiconductor device |
PCT/JP2005/000421 WO2005088735A1 (ja) | 2004-03-12 | 2005-01-14 | Ga2O3系半導体素子 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2004071816A JP4670034B2 (ja) | 2004-03-12 | 2004-03-12 | 電極を備えたGa2O3系半導体層 |
Related Child Applications (1)
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---|---|---|---|
JP2009008686A Division JP5078039B2 (ja) | 2009-01-19 | 2009-01-19 | Ga2O3系半導体素子及びGa2O3系半導体素子の製造方法 |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2005260101A JP2005260101A (ja) | 2005-09-22 |
JP4670034B2 true JP4670034B2 (ja) | 2011-04-13 |
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JP2004071816A Expired - Fee Related JP4670034B2 (ja) | 2004-03-12 | 2004-03-12 | 電極を備えたGa2O3系半導体層 |
Country Status (3)
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---|---|
US (1) | US7800105B2 (ja) |
JP (1) | JP4670034B2 (ja) |
WO (1) | WO2005088735A1 (ja) |
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WO2009066667A1 (ja) * | 2007-11-21 | 2009-05-28 | Nippon Light Metal Company, Ltd. | 紫外線用フォトディテクタ、およびその製造方法 |
JP2009130012A (ja) * | 2007-11-21 | 2009-06-11 | Nippon Light Metal Co Ltd | 紫外線用フォトディテクタ、およびその製造方法 |
JP5103683B2 (ja) * | 2007-11-21 | 2012-12-19 | 日本軽金属株式会社 | 酸化ガリウム基板用電極の製造方法及びそれにより製造される酸化ガリウム基板用電極 |
JP5874946B2 (ja) * | 2009-03-27 | 2016-03-02 | 株式会社光波 | スイッチング制御装置及びショットキーダイオード |
CN104465318B (zh) | 2009-11-06 | 2018-04-24 | 株式会社半导体能源研究所 | 制造半导体器件的方法 |
KR101047652B1 (ko) | 2009-12-18 | 2011-07-07 | 엘지이노텍 주식회사 | 발광소자 및 그 제조방법 |
JP2013102081A (ja) | 2011-11-09 | 2013-05-23 | Tamura Seisakusho Co Ltd | ショットキーバリアダイオード |
US9331689B2 (en) | 2012-04-27 | 2016-05-03 | Semiconductor Energy Laboratory Co., Ltd. | Power supply circuit and semiconductor device including the same |
JP6152548B2 (ja) * | 2012-08-06 | 2017-06-28 | 並木精密宝石株式会社 | 酸化ガリウム基板及びその製造方法 |
JP2016015375A (ja) * | 2014-07-01 | 2016-01-28 | 株式会社タムラ製作所 | 発光素子 |
TWI686952B (zh) | 2015-12-18 | 2020-03-01 | 日商Flosfia股份有限公司 | 半導體裝置 |
KR102426781B1 (ko) * | 2016-01-07 | 2022-07-28 | 쑤저우 레킨 세미컨덕터 컴퍼니 리미티드 | 반도체 소자 및 이를 구비한 발광 모듈 |
US20180097073A1 (en) * | 2016-10-03 | 2018-04-05 | Flosfia Inc. | Semiconductor device and semiconductor system including semiconductor device |
CN108461404B (zh) * | 2018-05-23 | 2020-12-11 | 大连理工大学 | 一种氧化镓欧姆接触电极的制备方法 |
CN114144889A (zh) | 2019-05-23 | 2022-03-04 | 株式会社Flosfia | 半导体装置 |
JPWO2021010428A1 (ja) * | 2019-07-16 | 2021-01-21 | ||
CN114503285A (zh) * | 2019-10-03 | 2022-05-13 | 株式会社Flosfia | 半导体元件 |
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CN112086344B (zh) * | 2020-09-22 | 2022-12-20 | 中山大学 | 一种铝镓氧/氧化镓异质结薄膜的制备方法及其在真空紫外探测中的应用 |
JP2022069302A (ja) | 2020-10-23 | 2022-05-11 | 株式会社Flosfia | 半導体装置 |
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JP3297761B2 (ja) | 1993-01-14 | 2002-07-02 | ソニー株式会社 | オーミック電極および半導体発光素子 |
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US6177292B1 (en) * | 1996-12-05 | 2001-01-23 | Lg Electronics Inc. | Method for forming GaN semiconductor single crystal substrate and GaN diode with the substrate |
JP2001085743A (ja) | 1999-09-14 | 2001-03-30 | Sumitomo Electric Ind Ltd | n型化合物半導体の電極構造、その製造方法および化合物半導体装置 |
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 |
JP3933592B2 (ja) | 2002-03-26 | 2007-06-20 | 三洋電機株式会社 | 窒化物系半導体素子 |
JP4053926B2 (ja) | 2002-05-27 | 2008-02-27 | 日亜化学工業株式会社 | 窒化物半導体発光素子とそれを用いた発光装置 |
JP3679097B2 (ja) * | 2002-05-31 | 2005-08-03 | 株式会社光波 | 発光素子 |
JP4013664B2 (ja) | 2002-06-19 | 2007-11-28 | 松下電器産業株式会社 | 半導体発光素子の製造方法 |
JP2004071657A (ja) | 2002-08-01 | 2004-03-04 | Nec Corp | Iii族窒化物半導体素子、iii族窒化物半導体基板およびiii族窒化物半導体素子の製造方法 |
JP4507532B2 (ja) | 2002-08-27 | 2010-07-21 | 日亜化学工業株式会社 | 窒化物半導体素子 |
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