JP5999916B2 - 半導体素子及びその製造方法 - Google Patents
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Description
110 基板
120 バッファ層
130 第1非平坦非極性窒化物半導体層
140 第1構造物層
141 固体粒子
150 第1非極性窒化物半導体層
TD 貫通転位
Claims (16)
- 第1非平坦非極性窒化物半導体層と、
前記第1非平坦非極性窒化物半導体層の表面の少なくとも一部上に形成されたものであって、複数の固体粒子で形成された第1構造物層と、
前記第1非平坦非極性窒化物半導体層及び前記第1構造物層上に形成された第1非極性窒化物半導体層と、
前記第1非極性窒化物半導体層上に配置されて非極性化合物半導体で形成された第2非平坦非極性窒化物半導体層と、
前記第2非平坦非極性窒化物半導体層の表面の少なくとも一部上に形成されたものであって、複数の固体粒子で形成された第2構造物層と、
前記第2非平坦非極性窒化物半導体層及び前記第2構造物層上に形成された第2非極性窒化物半導体層と、を備え、
前記第1非平坦非極性窒化物半導体層及び第2非平坦非極性窒化物半導体層の表面には、第1構造物層及び第2構造物層の固体粒子が配置される複数の引込み部がそれぞれ形成され、
前記第1非平坦非極性窒化物半導体層上の引込み部と、前記第2非平坦非極性窒化物半導体層上の引込み部とは互いにずれて配置され、かつ前記第1構造物層の複数の固体粒子と、前記第2構造物層の複数の固体粒子とはサイズまたは形状が相異なって構成される半導体素子。 - 前記固体粒子は、シリカ(SiO2)、アルミナ(Al2O3)、チタニア(TiO2)、ジルコニア(ZrO2)、イットリア(Y2O3)−ジルコニア、酸化銅(CuO、Cu2O)及び酸化タンタル(Ta2O5)のうち少なくともいずれか一つを含んでなる請求項1に記載の半導体素子。
- 前記第1構造物層又は第2構造物層の固体粒子は、球形または多面体形状を持つ請求項1又は2のうちいずれか1項に記載の半導体素子。
- 前記固体粒子の屈折率は、前記第1非極性窒化物半導体層の屈折率と異なる値を持つ請求項3に記載の半導体素子。
- 前記第1構造物層又は第2構造物層の固体粒子は、球形シェルまたは多面体シェル形状を持つ請求項1ないし4のうちいずれか1項に記載の半導体素子。
- 前記シェルの厚さは、前記固体粒子の半径の3%〜50%範囲の値を持つ請求項5に記載の半導体素子。
- 前記シェルの内部にはガスがトラップされている請求項5に記載の半導体素子。
- 前記固体粒子は、前記第1非極性窒化物半導体層の屈折率と同じ値または異なる値を持つ請求項1に記載の半導体素子。
- 前記第1非平坦非極性窒化物半導体層の下部に基板がさらに備えられる請求項1ないし8のうちいずれか1項に記載の半導体素子。
- 前記基板は、Al2O3、Si、SiC、SiGe、Ge、GaAs、InP、GaN、InAs、GaPまたはGaSbのうちいずれか一つを含む材質からなる請求項9に記載の半導体素子。
- 前記基板と前記第1非平坦非極性窒化物半導体層との間にバッファ層がさらに備えられる請求項9に記載の半導体素子。
- 基板上に第1非平坦非極性窒化物半導体層を形成する段階と、
前記第1非平坦非極性窒化物半導体層の表面の少なくとも一部上に、複数の固体粒子で形成された第1構造物層を形成する段階と、
前記第1非平坦非極性窒化物半導体層及び前記第1構造物層上に第1非極性窒化物半導体層を形成する段階と、
前記第1非極性窒化物半導体層上に非極性化合物半導体で形成された第2非平坦非極性窒化物半導体層を形成する段階と、
前記第2非平坦非極性窒化物半導体層の表面の少なくとも一部上に、複数の固体粒子で形成された第2構造物層を形成する段階と、
前記第2非平坦非極性窒化物半導体層及び前記第2構造物層上に第2非極性窒化物半導体層を形成する段階と、を有し、
前記第1非平坦非極性窒化物半導体層及び第2非平坦非極性窒化物半導体層の表面には、第1構造物層及び第2構造物層の固体粒子が配置される複数の引込み部がそれぞれ形成され、
前記第1非平坦非極性窒化物半導体層上の引込み部と、前記第2非平坦非極性窒化物半導体層上の引込み部とが互いにずれて配置され、かつ前記第1構造物層の複数の固体粒子と、前記第2構造物層の複数の固体粒子とはサイズまたは形状が相異なって構成される半導体素子の製造方法。 - 前記第1非平坦非極性窒化物半導体層は、3次元構造を持ち、非極性半導体で形成され、
前記第1非平坦非極性窒化物半導体層を形成する段階は、
前記第1非平坦非極性窒化物半導体層の表面が複数の引込み部を備える形態で形成する請求項12に記載の半導体素子の製造方法。 - 前記第1構造物層又は第2構造物層を形成する段階は、
前記第1構造物層の複数の固体粒子を前記複数の引込み部内のみに配置させる請求項12に記載の半導体素子の製造方法。 - 前記第1非極性窒化物半導体層を形成する段階は、
前記第1構造物層をマスクとして使用して、前記第1非平坦非極性窒化物半導体層からの側面過成長(Epitaxial Lateral Overgrowth、ELO)を誘導する請求項14に記載の半導体素子の製造方法。 - 前記基板と前記第1非平坦非極性窒化物半導体層との間にバッファ層を形成する段階をさらに含む請求項12ないし15のうちいずれか1項に記載の半導体素子の製造方法。
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| US9450150B2 (en) * | 2012-10-22 | 2016-09-20 | Sharp Kabushiki Kaisha | Nitride semiconductor light-emitting element |
| KR102022346B1 (ko) * | 2013-02-21 | 2019-09-18 | 삼성전자주식회사 | 반도체 발광소자 및 그 제조방법 |
| JP6270536B2 (ja) * | 2013-06-27 | 2018-01-31 | 株式会社東芝 | 窒化物半導体素子、窒化物半導体ウェーハ及び窒化物半導体層の形成方法 |
| KR102591150B1 (ko) * | 2021-12-30 | 2023-10-19 | 웨이브로드 주식회사 | 비발광 3족 질화물 반도체 소자를 제조하는 방법 |
| KR102591147B1 (ko) * | 2021-07-08 | 2023-10-19 | 웨이브로드 주식회사 | 비발광 3족 질화물 반도체 적층체를 제조하는 방법 |
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| KR100966367B1 (ko) | 2007-06-15 | 2010-06-28 | 삼성엘이디 주식회사 | 반도체 발광소자 및 그의 제조방법 |
| WO2009070625A1 (en) | 2007-11-27 | 2009-06-04 | Nanocrystal, Llc | Ultra-low dislocation density group iii - nitride semiconductor substrates grown via nano-or micro-particle film |
| TWI447783B (zh) | 2008-04-28 | 2014-08-01 | 榮創能源科技股份有限公司 | 三族氮化合物半導體發光元件之製造方法及其結構 |
| KR101101780B1 (ko) * | 2008-09-08 | 2012-01-05 | 서울대학교산학협력단 | 질화물 박막 구조 및 그 형성 방법 |
| KR100944946B1 (ko) | 2009-02-10 | 2010-03-02 | 재단법인서울대학교산학협력재단 | 패턴이 형성된 기판 제조방법 |
| US8237152B2 (en) * | 2009-06-02 | 2012-08-07 | The United States Of America, As Represented By The Secretary Of The Navy | White light emitting device based on polariton laser |
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2011
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- 2011-09-23 US US13/242,827 patent/US9230804B2/en active Active
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| Publication number | Publication date |
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| KR20120092928A (ko) | 2012-08-22 |
| JP2012169628A (ja) | 2012-09-06 |
| EP2487707A3 (en) | 2014-05-07 |
| KR101810609B1 (ko) | 2017-12-20 |
| CN102637794A (zh) | 2012-08-15 |
| EP2487707B1 (en) | 2020-04-29 |
| CN102637794B (zh) | 2016-12-14 |
| EP2487707A2 (en) | 2012-08-15 |
| US9230804B2 (en) | 2016-01-05 |
| US20120205783A1 (en) | 2012-08-16 |
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