JP6195125B2 - 窒化物半導体テンプレート及びその製造方法 - Google Patents
窒化物半導体テンプレート及びその製造方法 Download PDFInfo
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Description
(窒化物半導体テンプレートの構造)
図1は、実施の形態に係る窒化物半導体テンプレート10の垂直断面図である。窒化物半導体テンプレート10は、発光波長が315〜360nmの紫外線LEDの用途に適したテンプレートである。
以下に、窒化物半導体テンプレート10の製造方法の一例について説明する。
以下の表1は、各層の成長条件と、第2の窒化物半導体層の表面状態の評価結果を示す。
上記実施の形態によれば、高品質な窒化物半導体をGa2O3基板上に有する、発光波長が315〜360nmの紫外線LED用途に適した窒化物半導体テンプレートを得ることができる。
Claims (6)
- Ga2O3基板((−201)面から[102]方向へ0.5°〜2.5°、[010]方向へ−1.0°〜1.0°のオフ角で傾斜した面を主面とするものを除く)と、
前記Ga2O3基板上に形成された、AlNを主成分とするバッファ層と、
前記バッファ層上に形成された、AlxGa1−xN(0.2<x≦1)を主成分とする第1の窒化物半導体層(厚さ方向に貫通した穴が形成されたものを除く)と、
前記第1の窒化物半導体層上に形成された、AlyGa1−yN(0.2≦y≦0.55、y<x)を主成分とする第2の窒化物半導体層と、
を有し、
前記第2の窒化物半導体層が表面にピットを有しない、
窒化物半導体テンプレート。 - 前記バッファ層の厚さが10nm以下である、
請求項1に記載の窒化物半導体テンプレート。 - 前記第2の窒化物半導体層が表面にクラックを有しない、
請求項1又は2に記載の窒化物半導体テンプレート。 - 前記第2の窒化物半導体層の転位密度が2.0×1010cm−2以下である、
請求項1〜3のいずれか1項に記載の窒化物半導体テンプレート。 - Ga2O3基板と、
前記Ga2O3基板上に、400〜600℃の成長温度でAlNを主成分とするバッファ層を形成する工程と、
前記バッファ層上に、AlxGa1−xN(0.2<x≦1)を主成分とする第1の窒化物半導体層を形成する工程と、
前記第1の窒化物半導体層上に、AlyGa1−yN(0.2≦y≦0.55、y<x)を主成分とする第2の窒化物半導体層を形成する工程と、
を有し、
前記第2の窒化物半導体層の成長温度が1100℃よりも高く、前記第1の窒化物半導体層の成長温度が1100℃未満である、
窒化物半導体テンプレートの製造方法。 - 前記バッファ層の厚さが10nm以下である、
請求項5に記載の窒化物半導体テンプレートの製造方法。
Priority Applications (6)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2015035895A JP6195125B2 (ja) | 2015-02-25 | 2015-02-25 | 窒化物半導体テンプレート及びその製造方法 |
CN201680012004.9A CN107251195A (zh) | 2015-02-25 | 2016-02-08 | 氮化物半导体模板及其制造方法 |
PCT/JP2016/053695 WO2016136446A1 (ja) | 2015-02-25 | 2016-02-08 | 窒化物半導体テンプレート及びその製造方法 |
US15/551,960 US20180033907A1 (en) | 2015-02-25 | 2016-02-08 | Nitride semiconductor template and method for manufacturing same |
EP16755193.6A EP3264445A1 (en) | 2015-02-25 | 2016-02-08 | Nitride semiconductor template and method for manufacturing same |
TW105105673A TW201705530A (zh) | 2015-02-25 | 2016-02-25 | 氮化物半導體模板及其製造方法 |
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JP2015035895A JP6195125B2 (ja) | 2015-02-25 | 2015-02-25 | 窒化物半導体テンプレート及びその製造方法 |
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JP2016157876A JP2016157876A (ja) | 2016-09-01 |
JP6195125B2 true JP6195125B2 (ja) | 2017-09-13 |
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US (1) | US20180033907A1 (ja) |
EP (1) | EP3264445A1 (ja) |
JP (1) | JP6195125B2 (ja) |
CN (1) | CN107251195A (ja) |
TW (1) | TW201705530A (ja) |
WO (1) | WO2016136446A1 (ja) |
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EP3751023A4 (en) * | 2018-02-08 | 2021-10-27 | Sumitomo Chemical Company Limited | SEMI-CONDUCTIVE SLICE |
CN109301044A (zh) * | 2018-10-15 | 2019-02-01 | 华中科技大学鄂州工业技术研究院 | 基于n型掺杂氧化镓正装结构的深紫外LED垂直芯片 |
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US7687827B2 (en) * | 2004-07-07 | 2010-03-30 | Nitronex Corporation | III-nitride materials including low dislocation densities and methods associated with the same |
JP5491065B2 (ja) * | 2009-04-30 | 2014-05-14 | 住友電気工業株式会社 | ウエハ生産物を作製する方法、及び窒化ガリウム系半導体光素子を作製する方法 |
EP2477236A4 (en) * | 2009-09-07 | 2015-07-22 | Panasonic Ip Man Co Ltd | MULTILAYER NITRIDE SEMICONDUCTOR STRUCTURE, METHOD FOR THE PRODUCTION THEREOF AND LIGHT-EMITTING NITRIDE-SEMICONDUCTOR ELEMENT |
CN103503148A (zh) * | 2011-04-08 | 2014-01-08 | 株式会社田村制作所 | 半导体层叠体及其制造方法以及半导体元件 |
JP5612216B2 (ja) * | 2011-09-08 | 2014-10-22 | 株式会社タムラ製作所 | 結晶積層構造体及びその製造方法 |
KR20140085508A (ko) * | 2011-10-13 | 2014-07-07 | 가부시키가이샤 다무라 세이사쿠쇼 | 결정 적층 구조체 및 그 제조 방법 및 반도체 소자 |
CN103247724B (zh) * | 2012-02-08 | 2016-04-20 | 郭磊 | 一种半导体结构及其形成方法 |
JP2013214686A (ja) * | 2012-04-04 | 2013-10-17 | Furukawa Co Ltd | Iii族窒化物半導体層およびiii族窒化物半導体層の製造方法 |
JP2013251439A (ja) * | 2012-06-01 | 2013-12-12 | Tamura Seisakusho Co Ltd | 半導体積層構造体及び半導体素子 |
JP2015005534A (ja) * | 2013-06-18 | 2015-01-08 | 学校法人立命館 | 縦型発光ダイオードおよび結晶成長方法 |
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- 2016-02-08 WO PCT/JP2016/053695 patent/WO2016136446A1/ja active Application Filing
- 2016-02-08 CN CN201680012004.9A patent/CN107251195A/zh active Pending
- 2016-02-08 EP EP16755193.6A patent/EP3264445A1/en not_active Withdrawn
- 2016-02-08 US US15/551,960 patent/US20180033907A1/en not_active Abandoned
- 2016-02-25 TW TW105105673A patent/TW201705530A/zh unknown
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Publication number | Publication date |
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TW201705530A (zh) | 2017-02-01 |
EP3264445A1 (en) | 2018-01-03 |
JP2016157876A (ja) | 2016-09-01 |
CN107251195A (zh) | 2017-10-13 |
US20180033907A1 (en) | 2018-02-01 |
WO2016136446A1 (ja) | 2016-09-01 |
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