JP5159858B2 - 窒化ガリウム系化合物半導体基板とその製造方法 - Google Patents
窒化ガリウム系化合物半導体基板とその製造方法 Download PDFInfo
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- JP5159858B2 JP5159858B2 JP2010224558A JP2010224558A JP5159858B2 JP 5159858 B2 JP5159858 B2 JP 5159858B2 JP 2010224558 A JP2010224558 A JP 2010224558A JP 2010224558 A JP2010224558 A JP 2010224558A JP 5159858 B2 JP5159858 B2 JP 5159858B2
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- compound semiconductor
- gallium nitride
- semiconductor substrate
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- 239000000758 substrate Substances 0.000 title claims description 81
- 239000004065 semiconductor Substances 0.000 title claims description 69
- 229910002601 GaN Inorganic materials 0.000 title claims description 49
- -1 Gallium nitride compound Chemical class 0.000 title claims description 25
- 238000004519 manufacturing process Methods 0.000 title claims description 9
- 239000013078 crystal Substances 0.000 claims description 28
- JMASRVWKEDWRBT-UHFFFAOYSA-N Gallium nitride Chemical compound [Ga]#N JMASRVWKEDWRBT-UHFFFAOYSA-N 0.000 claims description 25
- 150000004767 nitrides Chemical class 0.000 claims description 25
- 238000000034 method Methods 0.000 claims description 21
- 239000002131 composite material Substances 0.000 claims description 17
- 150000001875 compounds Chemical class 0.000 claims description 13
- 230000008021 deposition Effects 0.000 claims description 13
- 230000000737 periodic effect Effects 0.000 claims description 13
- 238000010030 laminating Methods 0.000 claims description 8
- 239000010410 layer Substances 0.000 description 213
- 239000010408 film Substances 0.000 description 24
- 230000000694 effects Effects 0.000 description 13
- 238000000151 deposition Methods 0.000 description 12
- 239000000203 mixture Substances 0.000 description 9
- 229910002704 AlGaN Inorganic materials 0.000 description 8
- 230000000052 comparative effect Effects 0.000 description 7
- 239000002994 raw material Substances 0.000 description 7
- 238000011156 evaluation Methods 0.000 description 6
- 238000001947 vapour-phase growth Methods 0.000 description 6
- 230000015572 biosynthetic process Effects 0.000 description 5
- 239000000463 material Substances 0.000 description 5
- 229910052710 silicon Inorganic materials 0.000 description 5
- JLTRXTDYQLMHGR-UHFFFAOYSA-N trimethylaluminium Chemical compound C[Al](C)C JLTRXTDYQLMHGR-UHFFFAOYSA-N 0.000 description 5
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 4
- 238000003475 lamination Methods 0.000 description 4
- 239000010703 silicon Substances 0.000 description 4
- 239000002356 single layer Substances 0.000 description 4
- XCZXGTMEAKBVPV-UHFFFAOYSA-N trimethylgallium Chemical compound C[Ga](C)C XCZXGTMEAKBVPV-UHFFFAOYSA-N 0.000 description 4
- 238000006243 chemical reaction Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000008034 disappearance Effects 0.000 description 2
- 238000006073 displacement reaction Methods 0.000 description 2
- 230000003746 surface roughness Effects 0.000 description 2
- 239000010409 thin film Substances 0.000 description 2
- 238000005452 bending Methods 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 238000002109 crystal growth method Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000006731 degradation reaction Methods 0.000 description 1
- 238000005530 etching Methods 0.000 description 1
- 229910052733 gallium Inorganic materials 0.000 description 1
- 150000002259 gallium compounds Chemical class 0.000 description 1
- 230000017525 heat dissipation Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000002488 metal-organic chemical vapour deposition Methods 0.000 description 1
- 230000000116 mitigating effect Effects 0.000 description 1
- 238000005121 nitriding Methods 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 230000002250 progressing effect Effects 0.000 description 1
- 230000001902 propagating effect Effects 0.000 description 1
- 230000002040 relaxant effect Effects 0.000 description 1
- 230000001629 suppression Effects 0.000 description 1
- 230000008719 thickening Effects 0.000 description 1
- 238000007740 vapor deposition Methods 0.000 description 1
- 238000000927 vapour-phase epitaxy Methods 0.000 description 1
Landscapes
- Led Devices (AREA)
- Crystals, And After-Treatments Of Crystals (AREA)
- Chemical Vapour Deposition (AREA)
Description
Claims (2)
- Si単結晶からなる基板と、前記基板上に形成された窒化物半導体からなる中間層と、前記中間層上に形成された窒化ガリウム系化合物半導体からなる活性層で構成される窒化ガリウム系化合物半導体基板であって、前記中間層は、前記基板上に第一層と第二層がこの順で積層された初期バッファ層と、前記初期バッファ層上に第三層と第四層をこの順で複数回繰り返し積層し最後に第五層を積層してなる複合層を複数積層した周期堆積層からなり、前記第五層の膜厚が200nm以上、かつ、前記第三層と前記第四層からなる対の層の厚さの2倍以上20倍以下であることを特徴とする窒化ガリウム系化合物半導体基板。
- 請求項1に記載の窒化ガリウム系化合物半導体基板の製造方法であって、Si単結晶からなる基板上に第一層と第二層をこの順で積層する初期バッファ層形成工程と、前記初期バッファ層上に第三層と第四層をこの順に複数回繰り返し積層し最後に第五層を積層してなる複合層を複数積層して周期堆積層を形成する工程と、からなることを特徴とする窒化ガリウム系化合物半導体基板の製造方法。
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JP2010224558A JP5159858B2 (ja) | 2010-09-08 | 2010-10-04 | 窒化ガリウム系化合物半導体基板とその製造方法 |
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JP2010200621 | 2010-09-08 | ||
JP2010200621 | 2010-09-08 | ||
JP2010224558A JP5159858B2 (ja) | 2010-09-08 | 2010-10-04 | 窒化ガリウム系化合物半導体基板とその製造方法 |
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JP2012079952A JP2012079952A (ja) | 2012-04-19 |
JP5159858B2 true JP5159858B2 (ja) | 2013-03-13 |
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Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
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EP3364463A2 (en) | 2017-02-20 | 2018-08-22 | CoorsTek KK | Nitride semiconductor substrate and method for manufactuing the same |
Families Citing this family (6)
Publication number | Priority date | Publication date | Assignee | Title |
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JP6126906B2 (ja) * | 2013-05-14 | 2017-05-10 | シャープ株式会社 | 窒化物半導体エピタキシャルウェハ |
JP6224424B2 (ja) * | 2013-11-15 | 2017-11-01 | 古河機械金属株式会社 | Iii族窒化物半導体自立基板の製造方法 |
JP7279552B2 (ja) * | 2019-07-11 | 2023-05-23 | 信越半導体株式会社 | 電子デバイス用基板およびその製造方法 |
JP7173082B2 (ja) | 2020-04-17 | 2022-11-16 | 信越半導体株式会社 | 気相成長用のシリコン単結晶基板、気相成長基板及びこれらの製造方法 |
JP6866952B1 (ja) * | 2020-07-29 | 2021-04-28 | 信越半導体株式会社 | 窒化物半導体ウェーハおよび窒化物半導体ウェーハの製造方法 |
US20230279581A1 (en) | 2020-08-18 | 2023-09-07 | Shin-Etsu Handotai Co., Ltd. | Method for producing nitride semiconductor wafer and nitride semiconductor wafer |
Family Cites Families (9)
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JP5309451B2 (ja) * | 2007-02-19 | 2013-10-09 | サンケン電気株式会社 | 半導体ウエーハ及び半導体素子及び製造方法 |
JP5053220B2 (ja) * | 2008-09-30 | 2012-10-17 | 古河電気工業株式会社 | 半導体電子デバイスおよび半導体電子デバイスの製造方法 |
JP2010199441A (ja) * | 2009-02-26 | 2010-09-09 | Furukawa Electric Co Ltd:The | 半導体電子デバイスおよび半導体電子デバイスの製造方法 |
CN102511075B (zh) * | 2010-02-16 | 2015-09-23 | 日本碍子株式会社 | 外延基板以及外延基板的制造方法 |
WO2011102044A1 (ja) * | 2010-02-16 | 2011-08-25 | 日本碍子株式会社 | エピタキシャル基板およびエピタキシャル基板の製造方法 |
JPWO2011122322A1 (ja) * | 2010-03-31 | 2013-07-08 | 日本碍子株式会社 | エピタキシャル基板およびエピタキシャル基板の製造方法 |
WO2011136052A1 (ja) * | 2010-04-28 | 2011-11-03 | 日本碍子株式会社 | エピタキシャル基板およびエピタキシャル基板の製造方法 |
EP2565928A4 (en) * | 2010-04-28 | 2013-12-04 | Ngk Insulators Ltd | EPITACTIC SUBSTRATE AND METHOD FOR PRODUCING THE EPITACTIC SUBSTRATE |
JP5616443B2 (ja) * | 2010-06-08 | 2014-10-29 | 日本碍子株式会社 | エピタキシャル基板およびエピタキシャル基板の製造方法 |
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Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
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EP3364463A2 (en) | 2017-02-20 | 2018-08-22 | CoorsTek KK | Nitride semiconductor substrate and method for manufactuing the same |
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