JP4290745B2 - Iii−v族半導体素子の製造方法 - Google Patents
Iii−v族半導体素子の製造方法 Download PDFInfo
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- JP4290745B2 JP4290745B2 JP2007069266A JP2007069266A JP4290745B2 JP 4290745 B2 JP4290745 B2 JP 4290745B2 JP 2007069266 A JP2007069266 A JP 2007069266A JP 2007069266 A JP2007069266 A JP 2007069266A JP 4290745 B2 JP4290745 B2 JP 4290745B2
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L33/00—Semiconductor devices with at least one potential-jump barrier or surface barrier specially adapted for light emission; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof
- H01L33/02—Semiconductor devices with at least one potential-jump barrier or surface barrier specially adapted for light emission; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof characterised by the semiconductor bodies
- H01L33/025—Physical imperfections, e.g. particular concentration or distribution of impurities
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L33/00—Semiconductor devices with at least one potential-jump barrier or surface barrier specially adapted for light emission; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof
- H01L33/005—Processes
- H01L33/0093—Wafer bonding; Removal of the growth substrate
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L33/00—Semiconductor devices with at least one potential-jump barrier or surface barrier specially adapted for light emission; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof
- H01L33/44—Semiconductor devices with at least one potential-jump barrier or surface barrier specially adapted for light emission; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof characterised by the coatings, e.g. passivation layer or anti-reflective coating
- H01L33/46—Reflective coating, e.g. dielectric Bragg reflector
Description
102、602:p電極
103、603:低融点金属拡散防止層
105、106、605:低融点金属層
107:支持基板
108:n電極
110、111、210、311、411、510、610、710、713:高抵抗領域
112:サファイア基板
Claims (9)
- III −V族半導体で構成された半導体素子の製造方法において、
基板上にIII −V族半導体からなり、n層とp層が積層された半導体層を形成する工程と、
前記半導体層の前記基板とは反対側の表面の所定の領域に、イオンが前記基板に達する加速電圧でイオン注入して高抵抗領域を形成し、前記高抵抗領域により前記半導体層を各半導体素子に分離する工程と、
前記高抵抗領域を形成した後、前記各半導体素子の前記基板とは反対側の表面に、p電極および低融点金属拡散防止層を形成する工程と、
前記半導体素子と導電性の支持基板を低融点金属層を介して接合する工程と、
レーザーリフトオフにより前記基板を除去する工程と、
を有することを特徴とする半導体素子の製造方法。 - 前記イオン注入は、異なる加速電圧で複数回行われることを特徴とする請求項1に記載の半導体素子の製造方法。
- III −V族半導体で構成された半導体素子の製造方法において、
基板上にIII −V族半導体からなり、n層とp層が積層された半導体層を形成する工程と、
前記半導体層の前記基板とは反対側の表面の所定の領域に、イオンが前記基板に達しない加速電圧でイオン注入して第1高抵抗領域を形成する工程と、
前記第1高抵抗領域を形成した後、前記半導体層の前記基板とは反対側の表面に、p電極および低融点金属拡散防止層を形成する工程と、
前記半導体素子と導電性の支持基板を低融点金属層を介して接合する工程と、
レーザーリフトオフにより前記基板を除去する工程と、
前記第1高抵抗領域に対応する、前記基板と接合していた前記半導体層表面の所定の領域に、イオンが前記高抵抗領域に達する加速電圧でイオン注入して前記第1高抵抗領域に続く第2高抵抗領域を形成し、前記第1および第2高抵抗領域により前記半導体層を各半導体素子に分離する工程と、
を有することを特徴とする半導体素子の製造方法。 - 前記低融点金属層は、Au−Sn、Au−Si、Ag−Sn−Cu、Sn−Biのいずれかにより形成されていることを特徴とする請求項1ないし請求項3のいずれか1項に記載の半導体素子の製造方法。
- 前記半導体素子は、III 族窒化物半導体で構成されていることを特徴とする請求項1ないし請求項4のいずれか1項に記載の半導体素子の製造方法。
- 前記半導体素子は、発光素子であることを特徴とする請求項1ないし請求項5のいずれか1項に記載の半導体素子の製造方法。
- 前記p電極および低融点金属拡散防止層は、前記半導体層の前記基板とは反対側の表面の全面に形成する、ことを特徴とする請求項1ないし請求項6のいずれか1項に記載の半導体素子の製造方法。
- 前記基板を除去する工程の後、前記高抵抗領域をエッチングして、前記半導体層を各半導体素子ごとに物理的に分離する工程をさらに有することを特徴とする請求項1に記載の半導体素子の製造方法。
- 前記第2高抵抗領域を形成した後、前記第1および第2高抵抗領域をエッチングして、前記半導体層を各半導体素子ごとに物理的に分離する工程をさらに有することを特徴とする請求項3に記載の半導体素子の製造方法。
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JP2007069266A JP4290745B2 (ja) | 2007-03-16 | 2007-03-16 | Iii−v族半導体素子の製造方法 |
US12/076,234 US20080237629A1 (en) | 2007-03-16 | 2008-03-14 | Group III-V Semiconductor device and method for producing the same |
US12/656,970 US8420502B2 (en) | 2007-03-16 | 2010-02-22 | Group III-V semiconductor device and method for producing the same |
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JP2007069266A JP4290745B2 (ja) | 2007-03-16 | 2007-03-16 | Iii−v族半導体素子の製造方法 |
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JP2008235362A JP2008235362A (ja) | 2008-10-02 |
JP4290745B2 true JP4290745B2 (ja) | 2009-07-08 |
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-
2007
- 2007-03-16 JP JP2007069266A patent/JP4290745B2/ja active Active
-
2008
- 2008-03-14 US US12/076,234 patent/US20080237629A1/en not_active Abandoned
-
2010
- 2010-02-22 US US12/656,970 patent/US8420502B2/en not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
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US20080237629A1 (en) | 2008-10-02 |
JP2008235362A (ja) | 2008-10-02 |
US20100151612A1 (en) | 2010-06-17 |
US8420502B2 (en) | 2013-04-16 |
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