JP2011168481A - 窒化物半導体層の成長方法、及びそれにより形成される窒化物半導体基板 - Google Patents
窒化物半導体層の成長方法、及びそれにより形成される窒化物半導体基板 Download PDFInfo
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Abstract
【解決手段】 基板を準備し、該基板上に窒化物半導体ドットを形成し、窒化物半導体ドット上に窒化物半導体層を成長させる窒化物半導体層の成長方法である。このように成長された窒化物半導体層を基板から分離して、窒化物半導体基板として使用できる。
【選択図】 図1
Description
30 GaNドット
40 ストレス緩衝層
50 GaN層
Claims (29)
- 基板を準備するステップと、
前記基板上に窒化物半導体ドットを形成するステップと、
前記窒化物半導体ドット上に窒化物半導体層を成長させるステップと、を含む窒化物半導体層の成長方法。 - 前記窒化物半導体ドットが前記窒化物半導体層の成長の間に互いに連結されるストレス緩衝層が形成されるステップをさらに含む請求項1に記載の窒化物半導体層の成長方法。
- 前記窒化物半導体層は、前記ストレス緩衝層以上の厚さを有する請求項2に記載の窒化物半導体層の成長方法。
- 前記ストレス緩衝層の厚さは、1μmないし100μmである請求項2に記載の窒化物半導体層の成長方法。
- 前記窒化物半導体層は、HVPE(Halide Vapor Phase Epitaxy)法を使用して成長される請求項1に記載の窒化物半導体層の成長方法。
- 前記基板上にHVPEによる前記窒化物半導体層の成長時、元の位置に前記窒化物半導体ドットを形成する請求項5に記載の窒化物半導体層の成長方法。
- 前記窒化物半導体ドットは、一方向に整列される請求項1に記載の窒化物半導体層の成長方法。
- 前記窒化物半導体ドットのサイズによって、成長された前記窒化物半導体層の厚さを制限する請求項1に記載の窒化物半導体層の成長方法。
- 前記窒化物半導体ドットのサイズは、ほとんどが0.4μm以上である請求項1に記載の窒化物半導体層の成長方法。
- 前記窒化物半導体ドットのサイズは、ほとんどが0.4ないし0.8μmである請求項9に記載の窒化物半導体層の成長方法。
- 成長された前記窒化物半導体層の厚さは、100ないし1000μmである請求項10に記載の窒化物半導体層の成長方法。
- 前記窒化物半導体ドットのサイズは、ほとんどが0.4μm以内である請求項1に記載の窒化物半導体層の成長方法。
- 前記窒化物半導体層の厚さは、10μm以下である請求項12に記載の窒化物半導体層の成長方法。
- 前記窒化物半導体層及び前記窒化物半導体ドットは、GaNを含む請求項1に記載の窒化物半導体層の成長方法。
- 前記窒化物半導体ドットは、六角形の形態を有する請求項14に記載の窒化物半導体層の成長方法。
- 前記基板は、サファイア基板である請求項14に記載の窒化物半導体層の成長方法。
- 前記窒化物半導体層は、レーザーリフトオフ法により前記基板から分離されて、窒化物半導体基板として使われる請求項1に記載の窒化物半導体層の成長方法。
- 前記窒化物半導体基板は、GaN基板である請求項17に記載の窒化物半導体層の成長方法。
- 前記窒化物半導体ドットは、前記窒化物半導体層面上や面に近接して位置する請求項17に記載の窒化物半導体層の成長方法。
- 窒化物半導体ドットと、
前記窒化物半導体ドット上に成長された窒化物半導体層と、を備える窒化物半導体基板。 - 前記窒化物半導体ドットが前記窒化物半導体層の成長の間に互いに連結されるストレス緩衝層をさらに備える請求項20に記載の窒化物半導体基板。
- 前記窒化物半導体層は、前記ストレス緩衝層以上の厚さを有する請求項21に記載の窒化物半導体基板。
- 前記ストレス緩衝層の厚さは、1μmないし100μmである請求項21に記載の窒化物半導体基板。
- 前記窒化物半導体ドットは、前記窒化物半導体層面上や面に近接した方向に配列された請求項20に記載の窒化物半導体基板。
- 前記窒化物半導体ドットのサイズは、ほとんどが0.4ないし0.8μmである請求項20に記載の窒化物半導体基板。
- 前記成長された窒化物半導体層の厚さは、100μmないし1000μmである請求項25に記載の窒化物半導体基板。
- 前記窒化物半導体ドットのサイズは、ほとんどが0.4μm以上である請求項20に記載の窒化物半導体基板。
- 前記窒化物半導体層の厚さは、約10μmである請求項27に記載の窒化物半導体基板。
- 前記窒化物半導体ドットは、前記窒化物半導体層の面上に六角形の形態を有する請求項20に記載の窒化物半導体基板。
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KR20100015247 | 2010-02-19 | ||
KR10-2010-0015247 | 2010-02-19 | ||
KR1020100082085A KR20110095796A (ko) | 2010-02-19 | 2010-08-24 | 질화물 반도체층 성장 방법 및 이에 의해 형성되는 질화물 반도체 기판 |
KR10-2010-0082085 | 2010-08-24 |
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JP6284290B2 (ja) | 2010-02-19 | 2018-02-28 | 三星電子株式会社Samsung Electronics Co.,Ltd. | 窒化物半導体層の成長方法、及びそれにより形成される窒化物半導体基板 |
KR102094471B1 (ko) | 2013-10-07 | 2020-03-27 | 삼성전자주식회사 | 질화물 반도체층의 성장방법 및 이에 의하여 형성된 질화물 반도체 |
KR102099877B1 (ko) | 2013-11-05 | 2020-04-10 | 삼성전자 주식회사 | 질화물 반도체 디바이스의 제조 방법 |
JP6248359B2 (ja) * | 2013-12-20 | 2017-12-20 | 住友電工デバイス・イノベーション株式会社 | 半導体層の表面処理方法 |
DE102014101966A1 (de) | 2014-02-17 | 2015-08-20 | Osram Opto Semiconductors Gmbh | Verfahren zur Herstellung eines elektronischen Halbleiterchips und elektronischer Halbleiterchip |
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JP6284290B2 (ja) | 2018-02-28 |
US20110204377A1 (en) | 2011-08-25 |
EP2362412A1 (en) | 2011-08-31 |
US9318660B2 (en) | 2016-04-19 |
CN108342773A (zh) | 2018-07-31 |
US8962458B2 (en) | 2015-02-24 |
EP2362412B1 (en) | 2020-04-08 |
US8357594B2 (en) | 2013-01-22 |
US20120319131A1 (en) | 2012-12-20 |
US20150115280A1 (en) | 2015-04-30 |
CN102191539A (zh) | 2011-09-21 |
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