JP5816242B2 - 発光素子 - Google Patents
発光素子 Download PDFInfo
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- JP5816242B2 JP5816242B2 JP2013215177A JP2013215177A JP5816242B2 JP 5816242 B2 JP5816242 B2 JP 5816242B2 JP 2013215177 A JP2013215177 A JP 2013215177A JP 2013215177 A JP2013215177 A JP 2013215177A JP 5816242 B2 JP5816242 B2 JP 5816242B2
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Description
実施形態による発光素子又は発光素子は、照明システムに適用される。前記照明システムは、複数の発光素子がアレイされた構造を含み、図15及び図16に示されている表示装置、図17に示されている照明装置とを含み、照明灯、信号灯、車両前照灯、電光板などが含まれる。
113 凸部
111 基板
13、14 ピット
121 第1半導体層
123、124 金属化合物
131 第2半導体層
133 第1導電型半導体層
135 活性層
137 第2導電型半導体層
600 発光素子パッケージ
660 凹部
610 胴体
621 第1リードフレーム
631 第2リードフレーム
646 連結フレーム
671、672 発光素子
603〜606 連結部材
651 モールディング部材
681、682 ペースト部材
625 第1キャビティ
635 第2キャビティ
Claims (17)
- 基板と、
前記基板の上面から突出した複数の凸部と、
前記基板の上面の上に配置された第1半導体層と、
前記第1半導体層の上面からリセスされ、前記複数の凸部のそれぞれの一部を開放する複数の第1ピットと、
前記第1半導体層の上面からリセスされ、前記複数の第1ピットの間の領域に配置された複数の第2ピットと、
前記複数の第1ピットに配置され、前記複数の凸部の前記一部に接触している第1金属化合物と、
前記複数の第2ピットに配置された第2金属化合物と、
前記第1半導体層の上に配置された第2半導体層と、
前記第2半導体層の上に配置された発光構造物と、を含み、
前記発光構造物は前記第2半導体層の上に配置された第1導電型半導体層、前記第1導電型半導体層の上に配置された活性層、及び前記活性層の上に配置された第2導電型半導体層を含み、
前記第1及び第2金属化合物は前記第1及び第2半導体層の物質と異なる物質を含み、
前記複数の凸部のそれぞれの周りは、曲面を有し、
前記第1半導体層は、前記複数の凸部のそれぞれの周りに接触し、
前記第1金属化合物は、前記複数の第1ピット内で前記基板の前記複数の凸部及び前記第1半導体層に接触し、
前記第1ピット及び前記第2ピットは、互いに体積が異なることを特徴とする、発光素子。 - 前記第1半導体層は前記第1ピット及び第2ピットの各々に連結された複数の転位を含むことを特徴とする、請求項1に記載の発光素子。
- 前記第1ピットに連結された転位は垂直方向から水平方向に進行することを特徴とする、請求項2に記載の発光素子。
- 前記第1及び第2金属化合物は絶縁性材質を含み、
前記基板は透光性材質を含むことを特徴とする、請求項1乃至3のうち、いずれか1項に記載の発光素子。 - 前記第1及び第2金属化合物はシリコンを含む窒化物または酸化物を含むことを特徴とする、請求項4に記載の発光素子。
- 前記第1金属化合物の下部は凹な曲面を含むことを特徴とする、請求項4または5に記載の発光素子。
- 前記第1金属化合物の側面は前記第2金属化合物の側面と同一な角度に傾斜したことを特徴とする、請求項1乃至6のうち、いずれか1項に記載の発光素子。
- 前記第1金属化合物の下部幅は前記各凸部の下部幅より小さいことを特徴とする、請求項1乃至7のうち、いずれか1項に記載の発光素子。
- 前記複数の凸部のそれぞれは半球形形状を含み、前記複数の凸部のそれぞれの下部幅は前記複数の凸部のそれぞれの高さより広いことを特徴とする、請求項8に記載の発光素子。
- 前記第1及び第2半導体層のうちの少なくとも1つはn型ドーパントを含み、多層構造を有することを特徴とする、請求項1乃至9のうち、いずれか1項に記載の発光素子。
- 前記第2ピットは前記第1ピットより小さい深さを有し、前記凸部の位置より高く位置し、
前記第1半導体層は前記複数の凸部のそれぞれの高さより厚い厚さを含み、
前記第1ピットの体積は、前記第2ピットの体積よりも大きいことを特徴とする、請求項1乃至10のうち、いずれか1項に記載の発光素子。 - 前記第1金属化合物の上面と前記第2金属化合物の上面は前記第1半導体層の上面と同一水平面に配置されることを特徴とする、請求項1乃至11のうち、いずれか1項に記載の発光素子。
- 前記基板と前記第1半導体層との間にバッファ層を含み、
前記バッファ層の一部は前記第1金属化合物と前記凸部との間に配置され、
前記第1金属化合物は前記バッファ層の一部に接触することを特徴とする、請求項12に記載の発光素子。 - 前記複数の凸部のうちのいずれか1つと前記第1金属化合物との間に孔隙を含むことを特徴とする、請求項13に記載の発光素子。
- 前記第2半導体層の上面の転位密度は前記第1半導体層の内の転位密度より低く、1×106〜1×108cm−2範囲を有することを特徴とする、請求項12乃至14のうち、いずれか1項に記載の発光素子。
- 前記基板の下面に前記複数の凸部に対応する複数の突起を含むことを特徴とする、請求項12乃至15のうち、いずれか1項に記載の発光素子。
- 前記第1金属化合物は前記第1半導体層と接触し、傾斜した複数の側面と、前記凸部の表面に接触した凹な下面を含むことを特徴とする、請求項12乃至16のうち、いずれか1項に記載の発光素子。
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
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KR10-2012-0115322 | 2012-10-17 | ||
KR1020120115322A KR101982626B1 (ko) | 2012-10-17 | 2012-10-17 | 발광 소자 및 이를 구비한 조명 장치 |
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Publication Number | Publication Date |
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JP2014082496A JP2014082496A (ja) | 2014-05-08 |
JP5816242B2 true JP5816242B2 (ja) | 2015-11-18 |
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Application Number | Title | Priority Date | Filing Date |
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JP2013215177A Active JP5816242B2 (ja) | 2012-10-17 | 2013-10-16 | 発光素子 |
Country Status (6)
Country | Link |
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US (1) | US8890200B2 (ja) |
EP (1) | EP2722901B1 (ja) |
JP (1) | JP5816242B2 (ja) |
KR (1) | KR101982626B1 (ja) |
CN (1) | CN103779469B (ja) |
TW (1) | TWI550899B (ja) |
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KR102015914B1 (ko) * | 2013-05-08 | 2019-08-29 | 엘지전자 주식회사 | 이종 기판, 질화물 반도체 발광 소자 및 그 제조 방법 |
KR102250519B1 (ko) * | 2014-11-13 | 2021-05-10 | 엘지이노텍 주식회사 | 발광소자, 이를 포함하는 발광소자 패키지, 및 이를 포함하는 조명시스템 |
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WO2009139376A1 (ja) * | 2008-05-14 | 2009-11-19 | 昭和電工株式会社 | Iii族窒化物半導体発光素子の製造方法及びiii族窒化物半導体発光素子、並びにランプ |
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JP5475569B2 (ja) | 2010-06-18 | 2014-04-16 | 株式会社東芝 | 窒化物半導体素子 |
CN102485944A (zh) * | 2010-12-03 | 2012-06-06 | 武汉迪源光电科技有限公司 | 一种具有外延缺陷阻挡层的外延结构 |
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SG183608A1 (en) * | 2011-03-02 | 2012-09-27 | Soitec Silicon On Insulator | Methods of forming iii/v semiconductor materials, and semiconductor structures formed using such methods |
KR101804408B1 (ko) * | 2011-09-05 | 2017-12-04 | 엘지이노텍 주식회사 | 발광소자 |
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TWI550899B (zh) | 2016-09-21 |
EP2722901B1 (en) | 2018-02-14 |
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US20140103380A1 (en) | 2014-04-17 |
JP2014082496A (ja) | 2014-05-08 |
US8890200B2 (en) | 2014-11-18 |
CN103779469B (zh) | 2016-09-07 |
CN103779469A (zh) | 2014-05-07 |
EP2722901A1 (en) | 2014-04-23 |
KR101982626B1 (ko) | 2019-05-27 |
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