JP4740795B2 - ロッド型発光素子及びその製造方法 - Google Patents
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- 229910052751 metal Inorganic materials 0.000 claims description 16
- 239000002184 metal Substances 0.000 claims description 16
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- 229910002601 GaN Inorganic materials 0.000 description 12
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- 238000001039 wet etching Methods 0.000 description 2
- 229910018072 Al 2 O 3 Inorganic materials 0.000 description 1
- 229910005191 Ga 2 O 3 Inorganic materials 0.000 description 1
- 229910001218 Gallium arsenide Inorganic materials 0.000 description 1
- JMASRVWKEDWRBT-UHFFFAOYSA-N Gallium nitride Chemical compound [Ga]#N JMASRVWKEDWRBT-UHFFFAOYSA-N 0.000 description 1
- 230000004888 barrier function Effects 0.000 description 1
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- H01L33/0066—Processes for devices with an active region comprising only III-V compounds with a substrate not being a III-V compound
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- H01L33/26—Materials of the light emitting region
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- H01L33/30—Materials of the light emitting region containing only elements of Group III and Group V of the Periodic Table
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Description
n1*sinθ1=n2*sinθ2
ここで、前記θ1は入射角であり、θ2は屈折角である。
第3に、発光ダイオードから放出された光を再吸収する基板を全反射される基板に変更する技術である。
120 : ロッド 140 : 電極
160 : 伝導性物質 200 : 電流伝送向上層
210 : 透明伝導酸化膜 300 : ベース基板
305 : シード(Seed) 307 : バッファ層
310 : ナノロッド 320 : 活性層
330 : 化合物半導体層 350 : 発光構造物
351 : ロッド構造物 400 : オーミックコンタクト及び反射用電極
410 : 金属支持部 450 : オーミックコンタクト及び透過用電極
Claims (8)
- 金属支持部と、
前記金属支持部の上部に形成されたオーミックコンタクト及び反射用電極と、
前記オーミックコンタクト及び反射用電極の上部に形成され、第1極性のドーパントがドーピングされた化合物半導体層、活性層、前記第1極性とは逆極性の第2極性のドーパントがドーピングされた化合物半導体層、が順次に形成されてなされる複数個の棒状のナノロッドを含み、各ナノロッドが互いに離間したナノロッド構造物と、
前記ナノロッド構造物の上部に形成されたオーミックコンタクト及び透過用電極とを含んでなるロッド型発光素子。 - 前記ナノロッド構造物とオーミックコンタクト及び透過用電極との間には、
第2極性のドーパントがドーピングされた化合物半導体層がさらに具備されたことを特徴とする請求項1に記載のロッド型発光素子。 - 前記ナノロッドの幅(W)は1〜1000nmであることを特徴とする請求項1に記載のロッド型発光素子。
- 前記ナノロッドは、
AlxGa1-xN(0≦x≦1)、InyGa1-yN(0≦y≦1)、ZnzMg1-zO(0≦z≦1)とZnuCd1-uO(0≦u≦1)のうちいずれか一つの物質が積層された多層のナノロッドであることを特徴とする請求項1に記載のロッド型発光素子。 - 前記金属支持部の厚さは1〜100μmであることを特徴とする請求項1に記載のロッド型発光素子。
- ベース基板の上部に第1極性のドーパントがドーピングされた化合物半導体よりなる複数個の棒状のナノロッドであって、各ロッドが互いに離間したナノロッド、を形成する段階と、
前記複数個のナノロッドそれぞれの上部に、活性層と、前記第1極性とは逆極性の第2極性のドーパントがドーピングされた化合物半導体層とを順次に形成して複数個の棒状のロッド構造物を形成する段階と、
前記ロッド構造物の上部にオーミックコンタクト及び反射用電極を形成する段階と、
前記オーミックコンタクト及び反射用電極の上部に金属支持部を形成する段階と、
前記ベース基板を前記ロッド構造物から除去する段階と、
前記ベース基板の除去により露出されたロッド構造物それぞれの下部にオーミックコンタクト及び透過用電極を形成する段階とを含んで構成されたロッド型発光素子の製造方法。 - 前記ナノロッドを形成する段階は、
前記ベース基板の上部にバッファ層を形成し、
前記バッファ層上部に第1極性のドーパントがドーピングされた化合物半導体よりなる複数個のナノロッドを形成することを特徴とする請求項6に記載のロッド型発光素子の製造方法。 - 前記ベース基板を除去する段階と前記オーミックコンタクト及び透過用電極を形成する段階との間に、
前記複数個のロッド構造物の第2極性のドーパントがドーピングされた化合物半導体層の上部に、このロッド構造物の成長温度より高温で平面上に密閉された第2極性のドーパントがドーピングされた化合物半導体層をさらに成長させ、
その平面上に密閉された第2極性のドーパントがドーピングされた化合物半導体層の上部にオーミックコンタクト及び反射用電極を形成することを特徴とする請求項6に記載のロッド型発光素子の製造方法。
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR10-2005-0043577 | 2005-05-24 | ||
KR1020050043577A KR100658938B1 (ko) | 2005-05-24 | 2005-05-24 | 나노 로드를 갖는 발광 소자 및 그의 제조 방법 |
KR10-2005-0044373 | 2005-05-26 | ||
KR1020050044373A KR101129094B1 (ko) | 2005-05-26 | 2005-05-26 | 로드형 발광 소자 및 그의 제조방법 |
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JP2006332650A JP2006332650A (ja) | 2006-12-07 |
JP4740795B2 true JP4740795B2 (ja) | 2011-08-03 |
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JP2006139266A Active JP4740795B2 (ja) | 2005-05-24 | 2006-05-18 | ロッド型発光素子及びその製造方法 |
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US (2) | US7947989B2 (ja) |
EP (2) | EP1727216B1 (ja) |
JP (1) | JP4740795B2 (ja) |
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EP1727216B1 (en) | 2019-04-24 |
JP2006332650A (ja) | 2006-12-07 |
US20110272723A1 (en) | 2011-11-10 |
EP2410582B1 (en) | 2019-09-04 |
EP2410582A3 (en) | 2013-10-23 |
US8653538B2 (en) | 2014-02-18 |
EP2410582A2 (en) | 2012-01-25 |
US7947989B2 (en) | 2011-05-24 |
US20070041214A1 (en) | 2007-02-22 |
EP1727216A2 (en) | 2006-11-29 |
EP1727216A3 (en) | 2011-07-27 |
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