JP2008053602A - 半導体素子及びその製造方法 - Google Patents
半導体素子及びその製造方法 Download PDFInfo
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- H10D30/47—FETs having zero-dimensional [0D], one-dimensional [1D] or two-dimensional [2D] charge carrier gas channels having 2D charge carrier gas channels, e.g. nanoribbon FETs or high electron mobility transistors [HEMT]
- H10D30/471—High electron mobility transistors [HEMT] or high hole mobility transistors [HHMT]
- H10D30/475—High electron mobility transistors [HEMT] or high hole mobility transistors [HHMT] having wider bandgap layer formed on top of lower bandgap active layer, e.g. undoped barrier HEMTs such as i-AlGaN/GaN HEMTs
- H10D30/4755—High electron mobility transistors [HEMT] or high hole mobility transistors [HHMT] having wider bandgap layer formed on top of lower bandgap active layer, e.g. undoped barrier HEMTs such as i-AlGaN/GaN HEMTs having wide bandgap charge-carrier supplying layers, e.g. modulation doped HEMTs such as n-AlGaAs/GaAs HEMTs
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- H—ELECTRICITY
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Abstract
【解決手段】半導体素子は、主面に周期性を有する凹部又は凸部を設けた基板を用いて形成された半導体超格子層7と、半導体超格子層7の上に形成された活性層5を含む半導体多層膜101とを備えている。
【選択図】図1
Description
B. Zhang, et al., "Japanese Journal of Applied Physics", 2003年, 42巻, p. L226-L228
2 ハンダ層
3 P電極
4 P型コンタクト層
5 発光層
6 N型クラッド層
7 バッファ層
8 N電極
9 結晶成長用基板
101 半導体多層膜
102 2次元周期構造
103 2次元周期構造
Claims (13)
- 主面に周期性を有する凹部又は凸部を設けた基板を用いて形成され、前記基板の主面に設けられた凹部又は凸部の形状が転写された半導体超格子層と、
前記半導体超格子層の上に形成され、活性層を含む半導体多層膜とを備えていることを特徴とする半導体素子。 - 前記半導体多層膜中の貫通転位密度は、前記半導体超格子層に転写された凹部又は凸部の境界の上方の領域において、他の領域と比べて小さいことを特徴とする請求項1に記載の半導体素子。
- 前記半導体超格子層は前記基板から剥離されていることを特徴とする請求項1又は2に記載の半導体素子。
- 前記活性層は、発光ダイオードの活性層、半導体レーザ素子の活性層、電界効果トランジスタのチャネル層又はバイポーラトランジスタのベース層であることを特徴とする請求項1から3のいずれか1項に記載の半導体素子。
- 第1の基板の表面に形成された第1の周期構造が転写された第2の周期構造を有し且つ発光層を含む半導体多層膜を備え、
前記半導体多層膜中の貫通転位の分布は、周期的であり、
前記発光層から放射された光は、前記第2の周期構造により回折され半導体多層膜構造の外部へ放射されることを特徴とする半導体素子。 - 前記第1の周期構造及び第2の周期構造は、2次元周期構造であることを特徴とする請求項5に記載の半導体素子。
- 前記半導体多層膜の一の面の側に形成された反射電極と、
前記反射電極を介在させて前記半導体多層膜と接合された第2の基板とをさらに備え、
前記反射電極の反射率は、前記半導体多層膜を構成する材料と前記第1の基板を構成する材料との界面における光反射率よりも大きいことを特徴とする請求項5に記載の半導体素子。 - 前記反射電極は、金、白金、銅、銀、ロジウム及びパラジウムのうちの1つ又は2つ以上を含む多層膜からなることを特徴とする請求項7に記載の半導体素子。
- 前記発光層は、窒化物半導体からなることを特徴とする請求項5に記載の半導体素子。
- 前記第1の基板及び第2の基板は、シリコン、ガリウムヒ素又はインジウムリンからなることを特徴とする請求項5に記載の半導体素子。
- 基板に周期性を有する凹部又は凸部を設ける工程(a)と、
前記基板の上に半導体超格子層を形成する工程(b)と、
前記半導体超格子層の上に活性層を含む半導体多層膜を形成する工程(c)とを備えていることを特徴とする半導体素子の製造方法。 - 前記工程(c)よりも後に、前記基板を除去する工程(d)をさらに備えていることを特徴とする請求項11に記載の半導体素子の製造方法。
- 前記工程(c)において、前記半導体多層膜中の貫通転位密度は、前記凹部又は凸部の境界近傍上にて低減することを特徴とする請求項11又は12に記載の半導体素子の製造方法。
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2006230405A JP2008053602A (ja) | 2006-08-28 | 2006-08-28 | 半導体素子及びその製造方法 |
| US11/892,708 US20080048176A1 (en) | 2006-08-28 | 2007-08-27 | Semiconductor device and method for fabricating the same |
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| JP2006230405A JP2008053602A (ja) | 2006-08-28 | 2006-08-28 | 半導体素子及びその製造方法 |
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| JP2008053602A true JP2008053602A (ja) | 2008-03-06 |
| JP2008053602A5 JP2008053602A5 (ja) | 2009-04-30 |
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Cited By (6)
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|---|---|---|---|---|
| JP2010067984A (ja) * | 2008-09-10 | 2010-03-25 | Samsung Electronics Co Ltd | 発光素子の製造方法、発光装置の製造方法、発光素子、および発光装置 |
| JP2012138499A (ja) * | 2010-12-27 | 2012-07-19 | Rohm Co Ltd | 発光素子、発光素子ユニットおよび発光素子パッケージ |
| JP2013115105A (ja) * | 2011-11-25 | 2013-06-10 | Sharp Corp | 窒化物半導体発光素子および窒化物半導体発光素子の製造方法 |
| US9257608B2 (en) | 2013-09-13 | 2016-02-09 | Kabushiki Kaisha Toshiba | Nitride semiconductor light emitting device |
| JP2023547903A (ja) * | 2020-10-28 | 2023-11-14 | ザ リージェンツ オブ ザ ユニバーシティ オブ カリフォルニア | パターンを発光素子のエピタキシャル層に転写する方法 |
| JP2024541943A (ja) * | 2021-10-29 | 2024-11-13 | ザ リージェンツ オブ ザ ユニバーシティ オブ カリフォルニア | エピタキシャル光制御特徴を含む発光ダイオード |
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| TWI491063B (zh) * | 2008-05-15 | 2015-07-01 | Epistar Corp | 高功率發光裝置 |
| JP5167974B2 (ja) * | 2008-06-16 | 2013-03-21 | 豊田合成株式会社 | Iii族窒化物系化合物半導体発光素子及びその製造方法 |
| US8044409B2 (en) * | 2008-08-11 | 2011-10-25 | Taiwan Semiconductor Manufacturing Company, Ltd. | III-nitride based semiconductor structure with multiple conductive tunneling layer |
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| US9508718B2 (en) * | 2014-12-29 | 2016-11-29 | Taiwan Semiconductor Manufacturing Company, Ltd. | FinFET contact structure and method for forming the same |
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| US9166111B2 (en) | 2010-12-27 | 2015-10-20 | Rohm Co., Ltd. | Light-emitting element, light-emitting element unit, and light-emitting element package |
| US9559263B2 (en) | 2010-12-27 | 2017-01-31 | Rohm Co., Ltd. | Light-emitting element, light-emitting element unit, and light-emitting element package |
| US10312411B2 (en) | 2010-12-27 | 2019-06-04 | Rohm Co., Ltd. | Light-emitting element, light-emitting element unit, and light-emitting element package |
| US10811563B2 (en) | 2010-12-27 | 2020-10-20 | Rohm Co., Ltd. | Light-emitting element, light-emitting element unit, and light-emitting element package |
| JP2013115105A (ja) * | 2011-11-25 | 2013-06-10 | Sharp Corp | 窒化物半導体発光素子および窒化物半導体発光素子の製造方法 |
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| US9257608B2 (en) | 2013-09-13 | 2016-02-09 | Kabushiki Kaisha Toshiba | Nitride semiconductor light emitting device |
| JP2023547903A (ja) * | 2020-10-28 | 2023-11-14 | ザ リージェンツ オブ ザ ユニバーシティ オブ カリフォルニア | パターンを発光素子のエピタキシャル層に転写する方法 |
| JP2024541943A (ja) * | 2021-10-29 | 2024-11-13 | ザ リージェンツ オブ ザ ユニバーシティ オブ カリフォルニア | エピタキシャル光制御特徴を含む発光ダイオード |
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